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History of changes

 developerWorks


Year 2011
Year 2010
Year 2009
Year 2008
Year 2007
Year 2006
Year 2005
Year 2004
Year 2003
Year 2002
Year 2001





2011-08-31 (31 Aug 2011)

This developerWorks update documents upstream contributions to kernel 3.0 and other contributions to Open Source from the Linux on System z team:

  • Updated Linux components:
    • upstream kernel 3.0 provides new functionality for Linux on System z
    • kernel 3.0 patch for message catalog
    • s390-tools 1.15.0 delivers new functionality and bugfixes
    • Note that libica 2.1.0 provides new functionality for Linux on System z.
  • Updated documentation for the Development stream:

2011-07-12 (12 Jul 2011)

This developerWorks update is triggered by the 2011-07-12 IBM Announcements:

The Technical details page of the Development stream has been updated to reflect the z114.

Please refer to IBM tested Linux environments to see the IBM support for your distribution.

2011-06-30 (30 June 2011)

This developerWorks update documents upstream contributions to kernel 2.6.39 and other contributions to Open Source from the Linux on System z team:


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2011-05-20 (20 May 2011)

2011-05-19 (19 May 2011)

This developerWorks update documents upstream contributions to kernel 2.6.38 and other contributions to Open Source from the Linux on System z team (from February/March 2011):

  • Updated Linux components:
  • Updated documentation for the Development stream:


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2011-01-27 (27 Jan 2011)

This developerWorks update documents upstream contributions to kernel 2.6.37 and other contributions to Open Source from the Linux on System z team:

2010-11-10 (10 Nov 2010)

2010-10-22 (22 Oct 2010)

This developerWorks update documents upstream contributions to kernel 2.6.36 and other contributions to Open Source from the Linux on System z team:


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2010-09-16 (16 Sep 2010)

This developerWorks update documents upstream contributions to kernel 2.6.35 and other contributions to Open Source from the Linux on System z team:

  • Updated Linux components:
  • Updated documentation for the Development stream:
    • Documentation updates for the following Linux on System z manuals:
      • Device Drivers, Features, and Commands
      • Using the Dump Tools
      • How to use FC-attached SCSI devices with Linux on System z
      • How to Improve Performance with PAV
      • Kernel Messages
    • Technical details and Restrictions

2010-07-22 (22 Jul 2010)

This developerWorks update is triggered by the 2010-07-22 IBM U.S. Hardware Announcement Letter 110-170 "The IBM zEnterprise™ System -- A new dimension in computing".


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2010-06-30 (30 Jun 2010)

  • New documentation for SLES11 SP1 - refer to the SLES11 SP1 documentation page for new/updated documentation tailored for SLES11 SP1:
    • Device Drivers, Features, and Commands
    • Using the Dump Tools
    • Kernel Messages
    as well as links to closest matching 'Development Stream' documentation.
  • New documentation for the 2010-05-28 kernel 2.6.34-related developerWorks update:

2010-05-28 (28 May 2010)

This developerWorks update documents upstream contributions to kernel 2.6.34 and other contributions to Open Source from the Linux on System z team:

  • Updated Linux components:
  • Documentation matching this kernel 2.6.34-related developerWorks update will be provided shortly.


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2010-03-12 (12 Mar 2010)

This developerWorks update documents upstream contributions to kernel 2.6.33 from the Linux on System z team:

  • Updated Linux components:
  • Updated documentation for the Development stream:
    • Documentation updates for the following Linux on System z manuals:
      • Device Drivers, Features, and Commands
      • Using the Dump Tools
      • How to use FC-attached SCSI devices with Linux on System z
      • How to use Execute-in-Place Technology with Linux on z/VM
      • Kernel Messages
    • Technical details and Restrictions
  • Note that you can now use Extended Address Volume (EAV) support, also known as 'large volume support', provided as patch for kernel 2.6.29 (2009-05-08), for Linux on System z running as a z/VM-guest if you are using z/VM 5.4 or z/VM 6.1 with the PTFs for APARs VM64709 (CP) and VM64711 (CMS).


2009-12-11 (11 Dec 2009)

This developerWorks update documents upstream contributions to kernel 2.6.32 from the Linux on System z team:

  • Updated Linux components:
  • Updated documentation for the Development stream:
    • Documentation updates for the following Linux on System z manuals:
      • Device Drivers, Features, and Commands
      • Using the Dump Tools
      • How to use FC-attached SCSI devices with Linux on System z
      • Kernel Messages
    • Technical details and Restrictions
    • Summary of recently announced IBM System z10 features of interest to Linux on System z

2009-09-23 (23 Sep 2009)

Starting with kernel 2.6.31, Linux on System z will document upstream contributions on the "Development stream" pages triggered by the release of new kernel-levels.
  • Updated Linux components:
    • upstream kernel-2.6.31 provides new functionality for Linux on System z, most importantly support to suspend ("hibernate") and resume Linux instances running in LPAR or as a z/VM-guest
    • kernel 2.6.31 patches for kerntypes and message catalog are available
    • the Toolchain has been updated with upstream GCC 4.4.1 and glibc 2.10 (no patches on top required)
    • s390-tools 1.8.3 provides device mapper support
    • snIPL 2.1.6 with enhancements replaces all previous snIPL versions
  • Updated documentation for the Development stream:


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2009-09-18 (18 Sep 2009)

2009-09-08 (08 Sep 2009)

2009-06-30 (30 Jun 2009)

  • New documentation for the Development stream:
    • 'How to Set up a Terminal Server Environment' is intended for Linux administrators and system programmers in charge of a virtual Linux server farm that runs under z/VM.
    • 'libica Programmer's Reference' is about libica Version 2 (with samples).

2009-06-24 (24 Jun 2009)

  • Updated and enhanced Web 2.0 documentation on the Distribution Hints pages:
    • Novell SUSE SLES10 SP2
    • Red Hat RHEL5.3
    • All Web 2.0 papers have been updated and make use of the latest available software. The papers on 'Web 2.0 samples for accessing DB2' now include support for DB2 on z/OS and DB2 LUW.
  • Update with bugfixes for the experimental (unsupported) userspace sample: kuli 1.0.2, enabling usage with kernel 2.6.29 or later.


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2009-05-08 (08 May 2009)

The 2009-05-08 developerWorks update enhances the "Development stream" significantly with new functionality provided for recent upstream Linux components.
Please refer to the links to "Development stream" pages in the following bullets for an overview of recommended functionality including exploitation of IBM System Storage DS8000 and System z hardware features, as well as other new Linux functionality:

2009-03-24 (24 Mar 2009)

2009-03-20 (20 Mar 2009)

  • snIPL 2.1.5 with changes replaces all previous snIPL versions.

2009-02-09 (09 Feb 2009)

  • New papers describing setup and configuration of Web 2.0 related programming languages to connect to IBM DB2 Enterprise Server Edition Version 9.5 LUW for:

2009-01-08 (08 Jan 2009)

  • snIPL 2.1.4 with bugfixes replaces all previous snIPL versions.


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2008-12-17 (17 Dec 2008)

  • New and updated papers describing
    • how to install and set up the components of a Web 2.0 infrastructure and
    • hot to set up of Web 2.0 applications (Wikis, Blogs, Content Management Systems etc.)
    on top of:
  • New documentation page, to help in finding PDFs on this Linux on System z developerWorks site.

2008-11-25 (25 Nov 2008)


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2008-11-18 (18 Nov 2008)

Updates for the "Development stream":
  • Updated recommended to link to IBM announcement letters.
  • Updated Technical details to reflect that Linux on System z is supported on z10 BC.

2008-09-30 (30 Sep 2008)

Update with bugfixes for the experimental (unsupported) userspace sample: kuli 1.0.1.

2008-08-29 (29 Aug 2008)

New papers describing how to install and set up the components of a Web 2.0 infrastructure on top of:

2008-07-04 (04 Jul 2008)

Experimental (unsupported) userspace sample kuli 1.0.0 demonstrating KVM usage.

2008-05-16 (16 May 2008)

Updates for the "Development stream":


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2008-05-07 (07 May 2008)
  • The 2008-05-07 developerWorks update introduces the "Development stream", which describes Linux on System z contributions and functionality against recent upstream kernel (currently kernel 2.6.25) and other upstream Linux components. Please refer to the following "Development stream" pages for:
  • When new Linux on System z distribution releases are available we will publish comments on the "Distribution hints" page.
  • New navigation: With the introduction of the "Development stream" we have a new navigation for the Linux on System z developerWorks-pages that no longer shows the old streams. You may want to use the Archive page to view the old streams (with the old navigation).
  • The previous streams will no longer be updated:

2008-03-20 (20 Mar 2008)


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2008-03-05 (05 Mar 2008)

On 2008-02-28 the new IBM System z server, z10 Enterprise Class (z10 EC), was announced (IBM U.S. Hardware Announcement Letter 108-154).
The z10 EC is supported by existing distribution as described in the Announcement Letter and on the webpage about IBM tested Linux environments.
The z10 EC has been reflected in the Technical Details for "October 2005 stream" and "April 2004 stream".

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2008-02-01 (01 Feb 2008)

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2007-11-20 (20 Nov 2007)

2007-11-06 (06 Nov 2007)

2007-10-12 (12 Oct 2007)

2007-10-11 (11 Oct 2007)
  • OCOs for Red Hat (kernel 2.4) matching the "Red Hat Enterprise Linux 3 Update 9" (31-bit and 64-bit) kernel 2.4.21-52 errata (dated 2007-09-27).

2007-09-28 (28 Sep 2007)
  • OCOs for Red Hat (kernel 2.4) matching the "Red Hat Enterprise Linux 3 Update 9" (31-bit and 64-bit) kernel 2.4.21-51 errata (dated 2007-08-16).

2007-08-30 (30 Aug 2007)


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2007-06-22 (22 Jun 2007)

2007-06-20 (20 Jun 2007)
  • OCOs for Red Hat (kernel 2.4) matching the "Red Hat Enterprise Linux 3 Update 9" (31-bit and 64-bit) kernel 2.4.21-50 errata (dated 2007-06-11).

2007-06-08 (08 Jun 2007)

Please refer to the following pages for:

2007-05-31 (31 May 2007)

Please refer to the following pages of the "October 2005 stream" for recommended kernel 2.6.16 patches:

2007-03-23 (23 Mar 2007)

Please refer to the following pages of the "October 2005 stream" for recommended kernel 2.6.16 patches:

2007-03-09 (09 Mar 2007)
  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 4" (31-bit and 64-bit) kernel 2.6.9-42.0.10 errata (dated 2007-02-27).

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2007-02-28 (28 Feb 2007)

Updates and enhancements to the "October 2005 stream" with:

Updated documentation for the "April 2004 stream":

2007-02-15 (15 Feb 2007)

Please refer to the following pages of the "October 2005 stream" for recommended kernel 2.6.16 patches:

  • patch 11 with bug fixes
  • patch 12 with (previously optional) new functionality integrated into the "October 2005 stream" kernel patch-chain:
    • Collaborative Memory Management Stage II
    • Data execution protection for user processes

2007-02-07 (07 Feb 2007)
  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 4" (31-bit and 64-bit) kernel 2.6.9-42.0.8 errata (dated 2007-01-30).


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2006-12-01 (01 Dec 2006)

Please refer to the following pages of the "April 2004 stream" for:

2006-11-17 (17 Nov 2006)

This developerWorks update provides several enhancements to the "October 2005 stream" with:

Furthermore, there is updated Documentation for the "April 2004 stream":


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2006-11-02 (02 Nov 2006)

Please refer to the following pages for:

2006-10-13 (13 Oct 2006)
  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 4" (31-bit and 64-bit) kernel 2.6.9-42.0.3 errata (dated 2006-10-05).

2006-09-29 (29 Sep 2006)

2006-09-07 (07 Sep 2006)

Please refer to the following pages for:

  • "October 2005 stream"
  • "April 2004 stream"
  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 4" (31-bit and 64-bit) kernel 2.6.9-42 errata (dated 2006-08-10).
  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 4 (security update)" (31-bit and 64-bit) kernel 2.6.9-42.0.2 errata (dated 2006-08-22).

2006-07-28 (28 Jul 2006)

New manual How to use FC-attached SCSI devices with Linux on System z (PDF, 1.6MB) for use with:

2006-07-26 (26 Jul 2006)

Please refer to the following pages for:

  • OCOs for Red Hat (kernel 2.4) matching the "Red Hat Enterprise Linux 3 Update 8 (31-bit and 64-bit) kernel 2.4.21-47 errata.


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2006-07-20 (20 Jul 2006)

Please refer to the following pages for:

  • "April 2004 stream"
  • "October 2005 stream"
  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 3" (31-bit and 64-bit) kernel 2.6.9-34.0.1 errata.
  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 3" (31-bit and 64-bit) kernel 2.6.9-34.0.2 errata.

2006-05-19 (19 May 2006)

Please refer to the following pages for:

2006-04-28 (28 Apr 2006)

Please refer to the following pages for:


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2006-04-12 (12 Apr 2006)

Please refer to the following pages for:

  • "April 2004 stream"
    • kernel 2.6.5 (patch 34) recommended kernel bug fixes
      Note: Please apply patch 35 (dated 2006-04-28) on top.

2006-03-28 (28 Mar 2006)

Please refer to the following pages for:

2006-03-22 (22 Mar 2006)

Please refer to the following pages for:

  • OCOs for Red Hat (kernel 2.4) matching the "Red Hat Enterprise Linux 3 Update 7 (31-bit and 64-bit) kernel 2.4.21-40 errata.

2006-03-10 (10 Mar 2006)

Please refer to the following pages for:

  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 3" (31-bit and 64-bit) kernel 2.6.9-34 errata.


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2006-03-08 (08 Mar 2006)

Please refer to the following pages for:

2006-02-09 (09 Feb 2006)

Please refer to the following pages for:

2006-01-20 (20 Jan 2006)

Please refer to the following pages for:

  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 2 kernel security update" (31-bit and 64-bit) kernel 2.6.9-22.0.2 errata.
  • OCOs for Red Hat (kernel 2.4) matching the "Red Hat Enterprise Linux 3 Update 6 kernel security update" (31-bit and 64-bit) kernel 2.4.21-37.0.1 errata.


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2005-12-22 (22 Dec 2005)

Please refer to the following pages for:

2005-12-19 (19 Dec 2005)

We are switching our pages to the new design template, today.

2005-12-14 (14 Dec 2005)

Please refer to the following pages

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2005-12-09 (09 Dec 2005)

Please refer to the following pages for:

2005-11-03 (03 Nov 2005)

Please refer to the following pages for:

  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 2 kernel security update" (31-bit and 64-bit) kernel 2.6.9-22.0.1 errata.

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2005-11-02 (02 Nov 2005)

Please refer to the following pages for:

  • "April 2004 stream"
  • As how-to information for "Fixed I/O Buffers" is available, the relevant patches have been updated with links:
    • June 2003 stream kernel 2.4.21, patch 29
    • April 2004 stream kernel 2.6.5, patch 11

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2005-10-14 (14 Oct 2005)

The 2005-10-14 developerWorks update introduces the "October 2005 stream", which provides all the functionality of the "April 2004 stream" -- as well as additional new functionality -- on top of kernel 2.6.13 which, of course, also includes further new features. This stream has been tested with new tool-chain, utilities, and debug tools.

2005-10-12 (12 Oct 2005)

Please refer to the following pages for:

  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 2" (31-bit and 64-bit) kernel 2.6.9-22 errata.

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2005-10-07 (07 Oct 2005)

Please refer to the following pages for:

  • OCOs for Red Hat (kernel 2.4) matching the "Red Hat Enterprise Linux 3 Update 6" (31-bit and 64-bit) kernel 2.4.21-37 errata.

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2005-10-04 (04 Oct 2005)

Please refer to the following pages for:

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2005-09-23 (23 Sep 2005)

Please refer to the following pages for:

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2005-09-06 (06 Sep 2005)

Please refer to the following pages for:

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2005-09-01 (01 Sep 2005)

Please refer to the following pages for:

2005-07-28 (28 Jul 2005)

Please refer to the following pages for:

2005-07-11 (11 Jul 2005)

Please refer to the following pages for:

2005-06-23 (23 Jun 2005)

Please refer to the following pages for:

  • "April 2004 stream"
  • "June 2003 stream"
  • Correction for descriptions of "April 2004 stream" kernel patches:
    • We updated the description page for the 2004-06-21 "Single threaded workqueue patch" to reflect that the originally given URL is no longer available.
    • We also updated the patch-apply-sequence in the description-pages for kernel 2.6.5 patches 4 through 23 to show the new link (but left the READMEs in the tarballs unchanged, which therefore still have the broken link).

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2005-06-17 (17 Jun 2005)

The Linux on zSeries developerWorks pages are currently being tested at the new URL.


So you can start using the links we have been talking about since March 2005:
  • Online links: http://www.ibm.com/developerworks/linux/linux390/
  • In print use: ibm.com/developerworks/linux/linux390/
Some time on Monday 2005-06-20, re-directs from our old URLs will start to be effective:
  • http://awlinux1.alphaworks.ibm.com/developerworks/linux390
  • http://www10.software.ibm.com/developerworks/opensource/linux390
  • http://oss.software.ibm.com/developerworks/oss/linux390
It may be a while until the re-directs are effective, completely, but it is time to start changing your bookmarks and links on web-pages to Linux on zSeries developerWorks, as the re-directs will not be in place for ever.
Here is a summary of the changes effective on our new URL:
  • Previously, our web-pages were "*.shtml", now they are "*.html".
  • For the web-pages, directory-structure and [file-]names of the web-pages remain as before (except for the URL-handle, of course).
  • All patches, packages, OCO-modules will remain on the awlinux1-server for a while - but will be moved to an ftp-server in the next few months.
  • The PDFs with the manuals for our streams and documentation-downloads from the "Tuning hints & tips" are available on an ftp-server.
Here is some guidance for linking to our pages:
  • Please do not link to downloads (patches, OCO-modules, PDFs, etc.) from our pages, directly, but refer to the html-page where the link is shown.
  • Specifically, please do not link to PDFs, but to the "Documentation" page of the stream.
    As we found a lot of references to (old versions of) PDFs, we have established "documentation archives" for the active "April 2004" and "June 2003" streams (referenced on the "Documentation" page), with links to superseded (but still available) editions of the PDFs.

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2005-06-13 (13 Jun 2005)

Please refer to the following pages for:

  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux 4 Update 1" (31-bit and 64-bit) kernel 2.6.9-11 errata.

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2005-06-07 (07 Jun 2005)

Please refer to the following pages for:

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2005-06-03 (03 Jun 2005)

Please refer to the following pages for:

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2005-05-25 (25 May 2005)

Please refer to the following pages for:

  • "April 2004 stream"
  • OCOs for Red Hat (kernel 2.4) matching the "Red Hat Enterprise Linux 3 Update 5" (31-bit and 64-bit) kernel 2.4.21-32 errata.

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2005-05-13 (13 May 2005)

Please refer to the following pages for:

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2005-04-28 (28 Apr 2005)

Please refer to the following pages for:

  • OCOs for Red Hat (kernel 2.6) matching the "Red Hat Enterprise Linux AS (v. 4)" (31-bit and 64-bit) kernel 2.6.9-5.0.5 errata.
  • OCOs for Red Hat (kernel 2.4) matching the "Red Hat Enterprise Linux AS (v. 3)" (31-bit and 64-bit) kernel 2.4.21-27.0.4 errata.

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2005-04-05 (05 Apr 2005)

Please refer to the following pages for:

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2005-03-23 (23 Mar 2005)

Please refer to the following pages for:

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2005-03-18 (18 Mar 2005)

       Linux on zSeries pages temporarily hosted on awlinux1...

Since early March 2005, the Linux on zSeries developerWorks pages are available under a new URL:
http://awlinux1.alphaworks.ibm.com/developerworks/linux390/
As previously announced, hosting on awlinux1 is only temporary: The pages will be moved to a new URL later this year.
Unfortunately, our old URLs are not re-routed to their equivalent on the temporary home, but are re-directed to this page.
To ease the transition period, we have provided the navigation-bar below - so you can scroll and click.

We strongly recommend not to change any bookmarks, webpages, or documentation to the awlinux1-handle, now, unless you want to do it again in a few months.
If you are referring to our pages, refer to the homepage. When referring to sub-pages use text, e.g. kernel 2.6 based "April 2004 stream" (Recommended) and the date.
If you are reluctant to use the old URLs for our homepage:
http://www10.software.ibm.com/developerworks/opensource/linux390
http://oss.software.ibm.com/developerworks/oss/linux390
you may want to use the links we plan to migrate to:
Online links       http://www.ibm.com/developerworks/linux/linux390/
In print use       ibm.com/developerworks/linux/linux390/

(2005-03-18)

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2005-03-04 (04 Mar 2005)

Some time on Monday, March 7, 2005, the Linux on zSeries developerWorks pages will be available under a new URL. Structure and contents of the pages remain unchanged, only the URL-handle is different. Links to our URL-handles:
"http://www10.software.ibm.com/developerworks/opensource/linux390"
"http://oss.software.ibm.com/developerworks/oss/linux390"
will be re-routed to the new URL.
Please note: The Monday, March 7, URL is only temporary; it will be our handle for a few months, when we will have another home-URL.
Please do not change any links to Linux on zSeries developerWorks, next week, if you are not willing to do it again in a few months.
Specifically, please do not change any links on your web-pages, documentation etc., if they have a lifetime longer than a few months.
If you do change bookmarks and references (in your documentation, web pages, etc.), next week, please be prepared to change them again in a few months.
We will see to it, that the above URLs will be re-routed to the new home-URL, when that is ready. Sorry for the inconvenience.

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2005-03-03 (03 Mar 2005)

Please refer to the following pages for:

  • OCOs for Red Hat matching the "Red Hat Enterprise Linux AS v.4" (31-bit and 64-bit) kernel 2.6.9-5 GA-version and kernel 2.6.9-5.0.3 errata.

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2005-02-14 (14 Feb 2005)

Please refer to the following pages for:

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2005-01-24 (24 Jan 2005)

Please refer to the following pages for:

  • "April 2004 stream":
  • "June 2003 stream"
  • OCOs for Red Hat matching the "Red Hat Enterprise Linux AS v.3 update 4" (31-bit and 64-bit) kernel 2.4.21-27.0.2 errata dated 2005-01-18.

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2005-01-11 (11 Jan 2005)

Please refer to the following pages for:

  • OCOs for Red Hat matching the "Red Hat Enterprise Linux AS v.3 update 4" (31-bit and 64-bit) kernel 2.4.21-27.0.1 errata dated 2004-12-23.

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2004-12-14 (14 Dec 2004)

Please refer to the following pages for:

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2004-12-10 (10 Dec 2004)

Please refer to the following pages for:

  • OCOs for Red Hat matching the "Red Hat Enterprise Linux AS v.3" (31-bit and 64-bit) kernel 2.4.21-20.0.1 errata dated 2004-12-02.

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2004-12-03 (03 Dec 2004)

Please refer to the following pages for:

  • "June 2003 stream"
    • kernel 2.4.21 recommended kernel bug fixes and retrofitted lcs driver from "April 2004 stream" kernel 2.6.5

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2004-11-30 (30 Nov 2004)

Please refer to the following pages for:

Note that the page-layout has been adapted to the recently changed developerWorks conventions.

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2004-11-12 (12 Nov 2004)

Please refer to the following pages for:

  • "April 2004 stream":

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2004-11-02 (02 Nov 2004)

Please refer to the following pages for:

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2004-10-21 (21 Oct 2004)

Please refer to the following pages for:

  • "April 2004 stream":

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2004-10-12 (12 Oct 2004)

Please refer to the following pages for:

  • "June 2003 stream":
    • kernel 2.4.21 recommended patch, which replaces the new feature patch (18) dated 2004-10-07

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2004-10-07 (07 Oct 2004)

Please refer to the following pages for:

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2004-09-23 (23 Sept 2004)

Please refer to the following pages for:

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2004-09-20 (20 Sept 2004)

Please refer to the following pages for:

  • OCOs for Red Hat matching the "Red Hat Enterprise Linux AS v.3" (31-bit and 64-bit) kernel 2.4.21-20 errata dated 2004-09-02.

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2004-09-14 (14 Sept 2004)

Please refer to the following pages for:

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2004-08-31 (31 Aug 2004)

Please refer to the following pages for:

  • "April 2004 stream":

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2004-08-06 (06 Aug 2004)

Please refer to the following pages for:

  • OCOs for Red Hat matching the "Red Hat Enterprise Linux AS v.3" (31-bit and 64-bit) kernel 2.4.21-15.0.4 errata dated 2004-08-03.

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2004-07-30 (30 Jul 2004)

Please refer to the following pages for:

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2004-07-14 (14 Jul 2004)

Please refer to the following pages for:

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2004-07-13 (13 Jul 2004)

Please refer to the following pages for:

  • OCOs for Red Hat matching the "Red Hat Enterprise Linux AS v.3" (31-bit and 64-bit) kernel 2.4.21-15.0.3 errata dated 2004-07-02.

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2004-07-05 (05 Jul 2004)

Please refer to the following pages for:

  • OCOs for Red Hat matching the "Red Hat Enterprise Linux AS v.3" (31-bit and 64-bit) kernel 2.4.21-15.0.2 errata dated 2004-06-17.

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2004-06-21 (21 Jun 2004)

Please refer to the following pages for:

  • "April 2004 stream":
    • kernel 2.6.5 recommended kernel bug fixes and the previously experimental in-kernel crypto support
    • Experimental page updated.

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2004-06-14 (14 Jun 2004)

Please refer to the following pages for:

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2004-06-09 (09 Jun 2004)

Please refer to the following pages for:

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2004-05-28 (28 May 2004)

Please refer to the following pages for:

  • "April 2004 stream":
    • kernel 2.6.5 recommended kernel bug fixes
    • HiperSockets Network Concentrator (ip_watcher/start_hsnc) and qethconf are now recommended: Restrictions page updated accordingly.
  • OCOs for Red Hat matching the "Red Hat Enterprise Linux AS v.3" (31-bit and 64-bit) kernel 2.4.21-15 errata dated 2004-05-11.

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2004-05-18 (18 May 2004)

Please refer to the following pages for:

  • "April 2004 stream":
  • "June 2003 stream":

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2004-04-27 (27 Apr 2004)

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2004-04-16 (16 Apr 2004)

The 2004-04-16 developerWorks update introduces the "April 2004 stream", which is a port of most of the functionality of the "June 2003 stream" to a new, kernel 2.6-based stream -- using a new tool-chain with new utilities and debug tools:

Furthermore:


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2004-03-30 (30 Mar 2004)
  • "June 2003 stream" - Please refer to the following pages for:
  • See the zfcp HBA API library page for zfcp HBA API library 1.1 for use with "June 2003 stream"

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2004-03-24 (24 Mar 2004)

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2004-03-09 (09 Mar 2004)
  • OCOs for Red Hat matching the "Red Hat Enterprise Linux AS v.3" (31-bit and 64-bit) kernel 2.4.21-9.0.1 errata
  • Minor corrections and usability-improvements for the navigation-bar in the Linux on zSeries Tuning Hints & Tips pages

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2004-03-01 (01 Mar 2004)

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2004-02-18 (18 Feb 2004)
  • New Linux on zSeries Tuning Hints & Tips pages replace the former "Performance Hints & Tips" page: Many new and some reworked articles presented in a new layout.

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2004-02-16 (16 Feb 2004)
  • OCOs for Red Hat matching the "Red Hat Enterprise Linux Advanced Server 3" (31-bit and 64-bit) kernel 2.4.21-9 Update 1
  • Navigation-bar reworked for usability

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2004-01-30 (30 Jan 2004)

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2004-01-26 (26 Jan 2004)
  • "August 2001 stream" - Please refer to the following pages:

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2003-12-18 (18 Dec 2003)
  • "June 2003 stream" - Please refer to the following pages for:
    • kernel 2.4.21 recommended kernel bug fixes
    • kernel 2.4.23 experimental patches, upgrading vanilla kernel 2.4.23 to "June 2003 stream" kernel 2.4.21 as of 2003-12-18. Furthermore, this patch includes a retrofit of the lcs device driver from kernel 2.5 / 2.6
    • Restrictions have been updated to reflect "HiperSockets Network Concentrator" no longer restricted.

  • "May 2002 stream" is superseded by the "June 2003 stream"

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2003-12-05 (05 Dec 2003)

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2003-11-28 (28 Nov 2003)

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2003-11-14 (14 Nov 2003)

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2003-10-31 (31 Oct 2003)

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2003-09-18 (18 Sept 2003)
  • "June 2003 stream" - Please refer to the following pages for:
  • Please see the Useful add-ons page for src_vipa version 2.0.0 which provides more functionality

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2003-09-04 (04 Sept 2003)

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2003-08-28 (28 Aug 2003)

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2003-07-25 (25 July 2003)

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2003-07-07 (07 July 2003)

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2003-06-30 (30 June 2003)

The 2003-06-30 developerWorks updates introduce the "June 2003 stream" with kernel 2.4.21, gcc 3.3 and other tool-chain updates, as well as further enhancements - including support for several IBM eServer z990 hardware features.

  • Please refer to the "June 2003 stream" recommended page for:
    • Kernel 2.4.21 patches with matching "On-demand Timer" patch, kerntypes patch and tape_3590 OCO modules.
      Note that qeth is provided in open-source as part of the kernel patches.
    • gcc 3.3 containing support for hardware features of the new z990 models
    • binutils 2.14.90.0.4 patch with new features
    • s390-tools 1.2.0 with enhancements and bug-fix
    • gdb 5.3 patch with bug-fixes
    • strace 4.4 patches
  • Visit "June 2003 stream" page for Technical Details
  • See "June 2003 stream" page for Restrictions
  • Check out "June 2003 stream" page for updated manuals Documentation
  • Please see Useful add-ons page for lkcdutils-4.1 lkcd dump format version 8 patch with enhancements

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2003-06-13 (13 June 2003)

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2003-05-22 (22 May 2003)
  • OCOs for Red Hat OCO module matching the "Red Hat Linux 7.2" (s390 / 31-bit) kernel 2.4.9-43 errata

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2003-04-16 (16 Apr 2003)

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2003-03-17 (17 Mar 2003)
  • "August 2001 stream" - Please refer to the following pages:
  • "May 2002 stream" - Please refer to the following page:

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2003-03-05 (05 Mar 2003)

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2003-02-20 (20 Feb 2003)
  • "August 2001 stream" - Please refer to the following pages:
    • kernel 2.4.17:
      • kernel 2.4.17 with recommended kernel bug fixes and enhancements (including z90crypt source code and tape driver retrofit from "May 2002 stream")
      • On demand timer kernel 2.4.17 adapted to match kernel changes, optional
      • Order-2 kernel 2.4.17 adapted to match kernel changes, now required
      • OCO modules 2.4.17 for qdio and qeth OCO-modules built to match kernel changes, as well as the tape_3590_mod OCO module (retrofit from "May 2002 stream")
    • kernel 2.4.7:
      • kernel 2.4.7 with recommended kernel bug fixes and enhancements (including z90crypt source code and tape driver retrofit from "May 2002 stream")
      • On demand timer kernel 2.4.7 adapted to match kernel changes, optional
      • Order-2 kernel 2.4.7 adapted to match kernel changes, still optional
      • OCO modules 2.4.7 for qdio and qeth OCO-modules built to match kernel changes, as well as the tape_3590_mod OCO module (retrofit from "May 2002 stream")
    • s390-tools 1.0.6 with bug-fixes and new tools
    • Restrictions updates
  • "May 2002 stream" - Please refer to the following pages:

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2003-02-03 (03 Feb 2003)
  • "May 2002 stream":
    • Please refer to the Recommended page for bug-fixes for kernel 2.4.19 and s390 tools 1.1.5 (was 1.1.4).
    • New for kernel patches: In addition to the usual tarball containing one large "accumulated" patch we now provide another tarball, containing a set of "per-problem-patches" which when combined correspond to the accumulated patch.

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2003-01-13 (13 Jan 2003)

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2002-12-19 (19 Dec 2002)

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2002-11-25 (25 Nov 2002)
  • "August 2001 stream"
    Please refer to the "August 2001 stream" for recommended bug-fixes for:
  • "May 2002 stream"
    Please refer to the "May 2002 stream" Recommended page for bug-fixes for kernel 2.4.19.
  • Note that the OCOs for SUSE page has been reworked for clarification.

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2002-10-24 (24 Oct 2002)
  • "May 2002 stream"
    • Please refer to the "May 2002 stream" Recommended page for bug-fixes for kernel 2.4.19 (with adapted "On-Demand Timer" patch), binutils 2.12.90.0.15, strace 4.4, and s390 tools 1.1.4 (was 1.1.3).
    • The "May 2002 stream" Restrictions page has been updated.
    • The "May 2002 stream" Documentation page contains updated manuals.
  • Refer to the Useful add-ons page for the experimental LVM multipath support patch

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2002-10-15 (15 Oct 2002)
  • Please refer to the OCOs for Red Hat page for recommended OCO-modules matching the "Red Hat Linux 7.2" (s390 / 31-bit) and "Red Hat Linux 7.1" (s390x / 64-bit) kernel 2.4.9-38 errata.

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2002-09-18 (18 Sep 2002)
  • "May 2002 stream": Please update your bookmarks!
    • Please refer to the OCO modules 2002-09-13 page for the corrected kernel 2.4.19 OCO-modules of 2002-09-13.
      Please check whether you downloaded these modules between 2002-09-13 and 2002-09-18!
  • "August 2001 stream":
    • Please refer to the Recommended 2002-08-16 page for the corrected kernel 2.4.17 IUCV-patch of 2002-08-16.
      Please check whether you downloaded this patch between 2002-08-16 and 2002-09-18!

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2002-09-13 (13 Sep 2002)
  • "May 2002 stream": Please update your bookmarks!
    • Several packages in the "May 2002 stream" have been updated: Therefore the previous "May 2002 stream" pages are archived.
    • Refer to the "May 2002 stream" Recommended page for:
      • Kernel 2.4.19 patch with matching "On-Demand Timer" patch, OCO-modules, and kerntypes (replacing kernel 2.4.17)
      • binutils 2.12.90.0.15 (replacing 2.12.90.0.14)
      • gcc 3.2
      • glibc 2.2.5 patch
      • strace 4.4 (replacing 4.2)
      • Note that the "Download area" has been cleaned up, so that downloads which are no longer needed for the updated "May 2002 stream" are removed.
        Please update your bookmarks!
    • Please see the Experimental page for the new experimental CLAW device driver.
    • Note that the Technical Details and the Restrictions pages have been updated, while the Documentation page remains unchanged for the time being.
  • "August 2001 stream":
    • Please refer to the Recommended 2002-08-16 page for the corrected kernel 2.4.7 IUCV-patch of 2002-08-16 (which now applies in the standard manner).
      Please check whether you downloaded this patch between 2002-08-16 and 2002-09-13!
    • Please note that the 2002-08-16 kernel 2.4.17 IUCV-patch was corrected 2002-09-18.
    • On the Recommended 2002-09-13 page you will also find a kernel 2.4.7 bug-fix plus a new (adapted) On-demand timer-patch.
    • Note: With the introduction of the "August 2001 stream" (2002-08-08), a back-level version of the gcc-2.95.3.s390 patch was linked; this was corrected 2002-09-13.
      Please check whether you downloaded this patch between 2002-08-08 and 2002-09-13!
  • Please refer to the OCOs for SUSE page to find experimental OCO-modules for the upcoming SuSE SLES8 distribution.

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2002-08-16 (16 Aug 2002)
  • Please refer to the "May 2002 stream" Recommended page for:
    • kernel 2.4.17 timer patch with bug fix
    • glibc 2.2.5 recommended patch with bug-fixes
  • The 2002-08-16 recommended qeth modules contain the following changes since the 2002-06-17 recommended modules:
    • fixed a problem when using the "ip" tool (caused a hang on RedHat during shutdown)
    • added broadcast support for broadcast-enabled OSA Express adapters
    Check out the: for details.
  • See the "August 2001 stream" Recommended page for:
    • kernel 2.4.17 iucv patch with bug fix - corrected 2002-09-18.
    • kernel 2.4.7 iucv patch with bug fix - corrected 2002-09-13.

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2002-08-08 (08 Aug 2002)
  • This code drop introduces the name "August 2001 stream" for the recommended kernel 2.4.7 and kernel 2.4.17 (pre "May 2002 stream") related pages. The restructuring of these pages along the lines of the "May 2002 stream" pages should ease downloading and orientation.
    Unfortunately, with the introduction of the "August 2001 stream", a back-level version of the gcc-2.95.3.s390 patch was linked; this was corrected 2002-09-13.
    Please check whether you downloaded this patch between 2002-08-08 and 2002-09-13!
  • Please refer to the "May 2002 stream" Recommended page for:
    • s390-tools 1.1.3 with changes (replacing s390-tools 1.1.2 in the "May 2002 stream")
  • Check out the following pages for an important restriction on tape-sharing:
  • Please note that we also updated the "May 2002 stream" restrictions on 2002-07-31 - without mentioning it here.

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2002-07-31 (31 July 2002)
  • Please refer to the "May 2002 stream" Recommended page for:
    • kernel 2.4.17 recommended patch and OCO-modules with bug-fixes and enhancements.
      Note that z90crypt is provided in open-source as part of the kernel patch.
    • binutils 2.12.90.0.14 recommended patch with bug-fixes (replacing binutils 2.12.90.0.4 in the "May 2002 stream")
    • glibc 2.2.5 recommended patch with bug-fix
    • s390-tools 1.1.2 with bug-fixes and enhancements (replacing s390-tools 1.1.1 in the "May 2002 stream")
    • gdb 5.2.1 recommended patch with bug-fixes (replacing gdb 5.1.1 in the "May 2002 stream")
    • Note that gcc 3.1.1 (and 3.2, when available) replaces gcc 3.1 in the "May 2002 stream"
  • See the Useful add-ons page for:
    • lkcdutils-4.1 patch with enhancements
    • src_vipa (source VIPA) 1.0.1 update with bug-fix
  • Check out the "May 2002 stream" Documentation page for updated manuals.

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2002-07-25 (25 July 2002)

Please refer to the "August 2001 stream" Recommended page for:
  • gcc 2.95.3 recommended patch with bug-fix and
  • binutils 2.11.90.0.27 recommended patch with bug-fix
Note that these patches are applicable to "kernel 2.4.7" and "kernel 2.4.17"

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2002-07-04 (04 July 2002)

binutils 2.11.90.0.27 recommended patch with bug-fix can be found on the: Note that this patch is applicable to "kernel 2.4.7" and "kernel 2.4.17"

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2002-06-24 (24 June 2002)

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2002-06-17 (17 June 2002)

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2002-06-12 (12 June 2002)

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2002-06-04 (04 June 2002)

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2002-05-31 (31 May 2002)

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2002-05-17 (17 May 2002)
  • linux-2.4.9-37 experimental OCO-modules (31- and 64-bit) for RedHat on OCOs for RedHat page.

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2002-04-30 (30 Apr 2002)
  • linux-2.4.17 (with "old" tool-chain) now recommended on Recommended "August 2001 stream" page: functionally equivalent to recommended level 2.4.7 .
  • new experimental linux-2.4.17 (with "new" tool-chain, based on gcc 3.1) available on Archive Kernel 2.4.17-nf downloads page, with support for hardware features of the new z900 Turbo models, other new funtionality and bug fixes.

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2002-04-15 (15 Apr 2002)

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2002-03-18 (18 Mar 2002)

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2002-03-04 (04 Mar 2002)

LCS source code patches for kernel 2.2.16, 2.2.20, 2.4.7, and 2.4.17. New useful add-ons page with snIPL and src-vipa. Updated documentation for kernel 2.4.

On the Recommended level 2.2.16 & Recommended level 2.4.7 pages you will find:

  • Recommended kernel 2.2.16 and 2.4.7 source code for the lcs device driver.
On the Experimental Kernel 2.2.20 & Experimental Kernel 2.4.17 pages you will find:
  • Experimental kernel 2.2.20 and 2.4.17 source code for the lcs device driver.
On the Documentation 2.4.7 page you will find:
  • Updated Linux for S/390 & zSeries Device Driver and Installation Commands manuals.
On the new Useful add-ons page you will find two new experimental packages:
  • snIPL (simple network IPL)
  • src_vipa (source VIPA)

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2002-03-01 (01 Mar 2002)

Kernel 2.4.7 bug-fixes, OCO-modules (qdio and qeth), glibc fixes, binutils fixes, and bug-fixes for the 64-bit "undefined weak external" bug.

On the Recommended level 2.4.7 page you will find:

  • 2002-03-01: Recommended OCO-modules (qdio and qeth) with HiperSockets bug-fix.
    Please note the reference to z/VM 4.2 APAR VM63034!
  • 2002-02-28: Important tool-chain fixes for the 64-bit "undefined weak external" bug affecting glibc and binutils.
    Please read the description of the "undefined weak external" bug carefully and follow the instructions.
  • 2002-02-27: Bug-fixes for glibc 2.2.4 and 2.2.5.

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2002-02-26 (26 Feb 2002)

Recommended s390-tools, and experimental 2.2.20 kernel patches.

On the Recommended level 2.4.7 page you will find:

  • s390-tools patch.

On the Experimental Kernel 2.2.20 page you will find:

  • Experimental kernel 2.2.20 S/390 kernel patch.

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2002-02-05 (05 Feb 2002)

Experimental kernel level 2.4.17 patches with the related OCO-modules.

On the Experimental Kernel 2.4.17 pages you will find:

  • Experimental kernel based 2.4.17 patches.
  • Experimental 31-bit and 64-bit OCO-modules lcs, qdio, qeth, and z90crypt for kernel level 2.4.17.

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2002-01-28 (28 Jan 2002)

Kernel 2.2.16 recommended bug fix, Kernel 2.2.20 experimental S/390 patch together with OCO-modules.

On the Recommended level 2.2.16 page you will find:

  • Kernel-symbols fix for kernel 2.2.16.

On the Experimental Kernel 2.2.20 page you will find:

  • Experimental kernel 2.2.20 S/390-patches with matching OCO-modules: lcs, qdio, and qeth.

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2002-01-21 (21 Jan 2002)

Kernel 2.4.7: Bug-fixes and OCO-modules. Cryptographic device driver z90crypt now recommended for 31-bit, provided experimental for 64-bit (for the first time). Documentation now includes z90crypt.

On the Recommended level 2.4.7 page you will find:

  • Recommended patch with bug-fixes for kernel 2.4.7.
  • Updated "on-demand timer" patch with enhanced compatibility.
  • "Order 2 allocation relief" patch (for 64-bit) now recommended and no longer requiring special OCOs.
  • 31-bit and 64-bit OCO-modules lcs, qdio, qeth compiled for kernel 2.4.7 on same source-code-level as 2001-12-12.
  • 31-bit OCO-modules z90crypt now recommended.

On the Experimental Kernel 2.4.7 page you will find:

  • Experimental 64-bit z90crypt OCO-modules (for the first time).

On the Documentation 2.4.7 page you will find:

  • Updated Linux for S/390 and zSeries Device Drivers and Installation Commands manuals, now describing the cryptographic device driver z90crypt.

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2001-12-12 (12 Dec 2001)

A recommended patch for s390 tools (fdasd) along with fixed OCO-modules, an experimental kernel based 2.4.7 patch for "order 2 allocation relief", and experimental kernel level 2.4.16 patches with the related OCO-modules.

On the Recommended level 2.4.7 page you will find:

  • A patch for fdasd in the s390 tools.
  • Kernel 2.4.7 31-bit and 64-bit OCO-modules lcs, qdio, and qeth with bug-fixes.

On the Experimental pages you will find:

  • Kernel 2.4.7
    • An experimental kernel based 2.4.7 "order 2 allocation relief" patch.
  • Kernel 2.4.16
    • Experimental kernel based 2.4.16 patches.
    • Experimental 31-bit and 64-bit OCO-modules lcs, qdio, and qeth for kernel level 2.4.16.

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2001-11-23 (23 Nov 2001)

Recommended patches for kernel 2.4.7 along with fixed OCO-modules, updated Documentation for kernel level 2.4, and experimental 64-bit OCO-modules for the "order 2 allocation relief".

On the Recommended level 2.4.7 page you will find:

  • Recommended patches for kernel 2.4.7 with fixes provided along with
  • Recommended 31-bit and 64-bit OCO-modules lcs, qdio, and qeth with bug-fixes.

On the Experimental page you will find:

  • 64-bit experimental OCO-modules lcs, qdio, and qeth compiled with the "order 2 allocation relief" patch.

On the Documentation 2.4 page you will find:

  • Updated Linux for S/390 and zSeries Device Drivers and Installation Commands manuals.

    Changes include HiperSockets support (formerly available in separate HiperSockets Support manual) and the dasdview command plus updates to fdasd, zipl, and OSA-Express.

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2001-11-09 (09 Nov 2001)

Recommended patches for kernel 2.4.7 and s390 tools with fixes, along with fixed OCO-modules. Experimental kernel 2.4.7 patch for "order 2 allocation relief" for 64-bit with matching OCO-modules. Updated experimental z90crypt with fixes.

On the Recommended level 2.4.7 page you will find:

  • Recommended patches for kernel 2.4.7 and s390 tools with fixes provided along with
  • Recommended 31-bit and 64-bit OCO-modules lcs, qdio, and qeth with bug-fixes.

On the Experimental page you will find:

  • Experimental kernel 2.4.7 patch for "order 2 allocation relief" for 64-bit.
    This patch is very S/390 specific (breaking all other architectures) and should only be applied when building a 64-bit kernel. The patch is not compatible with the "on-demand timer" patch and requires special OCO-modules.
  • 64-bit experimental OCO-modules lcs, qdio, and qeth compiled with the "order 2 allocation relief" patch.
  • The 31-bit z90crypt OCO module which has been updated with bug fixes, but it remains experimental. (No 64-bit version of z90crypt available.)

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2001-11-06 (06 Nov 2001)

linux-2.2.16 alpha patch for I/O layer

The recommended alpha patch linux-2.2.16-rva_perf.tar.gz is available for download in the 2.2.16 download area. Everyone should apply this patch.

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2001-10-31 (31 Oct 2001)

Updated Linux on zSeries HiperSockets Support documentation

The updated HiperSockets Support manual for Linux on zSeries (31- and 64-bit) is available in the Documentation 2.4 section.

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2001-10-30 (30 Oct 2001)

linux-2.2.16 alpha patch for DASD driver

The recommended alpha patch linux-2.2.16-dasd_fba.tar.gz is available for download in the 2.2.16 download area. Everyone who uses FBA DASD devices should apply this patch.

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2001-10-12 (12 Oct 2001)

Recommended Kernel 2.4.7 (and related) patches with fixes for 31-bit Linux for S/390 and 64-bit Linux for zSeries, along with recommended 31-bit and 64-bit OCO-modules lcs, qdio, and qeth.

Subject patches and modules are now available in the 2.4.7 download area.

  • 64-bit Kernel 2.4.7 Linux for zSeries with 2001-10-12 patches is recommended.
    These patches are applicable to 31-bit Kernel 2.4.7 Linux for S/390, too.
  • 64-bit Linux for zSeries OCO-modules lcs, qdio, qeth of 2001-10-12 (fixes) are now recommended.
    The 31-bit Linux for S/390 OCO-modules have been updated with the same fixes, too.
  • New 64-bit Linux for zSeries manuals "Device Drivers and Installation Commands" and "Using the Dump Tools" are available in the documentation section.
  • Updated manual "HiperSockets Device Driver" is available in the documentation section.

Notes:

  • Starting with microcode level 0146, OSA-Express QDIO cards require a portname to be set in the device driver. This portname is specified using "add_parms,0x10,portname:FOOBAR" (more details in the chandev man page).
  • The 2001-09-28 z90crypt OCO-module (Crypto Device Driver) remains experimental and unchanged.

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2001-10-11 (11 Oct 2001)

linux-2.2.16 alpha patch for IUCV driver

The recommended alpha patch linux-2.2.16-iucv3.tar.gz is available for download in the 2.2.16 download area.

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2001-09-28 (28 Sep 2001)

31-bit recommended and 64-bit experimental qdio and qeth OCO modules with HiperSockets support, 31-bit experimental Crypto Device Driver for linux-2.4.7

HiperSockets support:

  • 31-bit recommended modules qdio.o and qeth.o for linux-2.4.7 which now support HiperSockets as well as OSA-Express QDIO cards are available for download in the 2.4.7 download area.
  • Corresponding 64-bit experimental OCO modules qdio.o and qeth.o with HiperSockets support are available for download in the same area.
  • New manual "HiperSockets Device Driver" is available in the documentation section.

    Notes:

    • Starting with microcode level 0146, OSA-Express QDIO cards require a portname to be set in the device driver. This portname is specified using "add_parms,0x10,portname:FOOBAR" (more details in the chandev man page).
    • These qdio and qeth OCO modules require the 2001-09-14 alpha patches.
    • The 2001-09-14 lcs OCO module remains unchanged.

Crypto Device Driver:

  • 31-bit experimental OCO module z90crypt-2.4.7-s390.o is available for download in the 2.4.7 download area.

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2001-09-14 (14 Sep 2001)

recommended alpha patches and OCO modules for 31-bit linux-2.4.7, experimental 64-bit OCO modules
  • Linux Kernel version 2.4.7 alpha patches and 31-bit OCO modules for Linux for S/390 including new functions on Kernel level 2.4, which has been tested on 31-bit S/390 hardware,
  • updated 31-bit documentation,
  • 64-bit experimental OCO modules.

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2001-09-11 (11 Sep 2001)

experimental patch for gdb-5.1pre
  • gdb-5.1pre-050901-s390.tar.gz
This patch contains a port of the S/390 and zSeries backend of the gdb debugger to the current gdb 5.1 prerelease version (it was built against a snapshot of the gdb CVS tree as of 2001-09-05, but should apply to more recent trees as well).

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2001-08-20 (20 Aug 2001)

recommended patches and OCO modules for linux kernel version 2.4.7 31-bit,
experimental OCO modules
  • Linux Kernel version 2.4.7 recommended patches for Linux for S/390 including new functions on Kernel level 2.4, which has been tested on 31-bit S/390 hardware:
    • binutils-2.11.90.0.27-s390
    • gcc-2.95.3-s390
    • gdb-5.0-s390
    • glibc-2.2.4-s390
    • linux-2.4.7-s390
    • linux-2.4.7-s390-kerntypes
    • modutils-2.4.7
    • strace-4.2.20010119-s390
    • s390-tools
  • Linux Kernel version 2.4.7 31-bit OCO modules
    • lcs-2.4.7-s390-1.tar.gz
    • lcs-2.4.7-s390-timer.tar.gz
    • qdio-2.4.7-s390-1.tar.gz
    • qeth-2.4.7-s390-1.tar.gz
    • qeth-2.4.7-s390-timer.tar.gz
  • Linux Kernel version 2.4.7 64-bit experimental OCO modules
    • lcs-2.4.7-s390x-1.tar.gz
    • lcs-2.4.7-s390x-timer.tar.gz
    • qdio-2.4.7-s390x-1.tar.gz
    • qeth-2.4.7-s390x-1.tar.gz
    • qeth-2.4.7-s390x-timer.tar.gz

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2001-08-03 (03 Aug 2001)

experimental OCO device driver z90crypt (31-bit) for linux kernel version 2.4.5
  • z90crypt.tar.gz

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2001-07-23 (23 July 2001)

alpha patches for linux-2.2.16, experimental patches for linux-2.2.19, updated documentation

alpha patches for linux-2.2.16

  • linux-2.2.16-fixes.tar.gz
  • linux-2.2.16-s390-dump.tar.gz
  • linux-2.2.16-tape.tar.gz
  • linux-2.2.16-dasd_performance.tar.gz
For more information please check the alpha patches in the OS download area.

experimental patches for linux-2.2.19

  • linux-2.2.19-fixes.tar.gz
  • linux-2.2.19-tape.tar.gz
  • linux-2.2.19-ctc.tar.gz
For more information please check the experimental patches in the OS download area.

updated documentation

  • new manual "Using the dump tools" for Kernel version 2.2
  • updated version of the "Linux for S/390 Device Drivers and Installation Commands" manual for Kernel version 2.2, which includes a description of the tape device driver.

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2001-06-29 (29 June 2001)

recommended patches and OCO modules for linux kernel version 2.4.5 31-bit, experimental OCO modules
  • Linux Kernel version 2.4.5 patches and 31-bit OCO modules for Linux for S/390 including new functions on Kernel level 2.4, which has been tested on 31-bit S/390 hardware
  • Two manuals describing new functions and changes
  • 64-bit experimental OCO modules

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2001-06-18 (18 June 2001)

experimental patch and OCO modules for linux-2.4.5
  • linux-2.4.5-s390.tar.gz
This patch contains the necessary changes to get linux kernel version 2.4.5 compiled plus several bug fixes.

Available OCO modules:

  • lcs-2.4.5-s390.tgz
  • lcs-2.4.5-s390x.tgz
  • lcs-withfddi-2.4.5-s390.tgz
  • lcs-withfddi-2.4.5-s390x.tgz
  • qdio-2.4.5-s390.tgz
  • qdio-2.4.5-s390x.tgz
  • qeth-2.4.5-s390.tgz
  • qeth-2.4.5-s390x.tgz

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2001-05-18 (18 May 2001)

alpha patches for linux-2.2.16

Two new alpha patches for Linux kernel version 2.2.16 are available:

  • linux-2.2.16-iucv2.tar.gz
    This patch fixes the behavior of the IUCV driver in transmit error situations.
  • linux-2.2.16-io.tar.gz
    This patch prevents the kernel from ending in a retry loop during IPL when multi-pathed devices suffer irrecoverable I/O errors during path grouping, e.g. when tapes units are "intervention required".

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2001-05-02 (02 May 2001)

OCO modules for linux-2.2.16

Two new OCO modules for Linux kernel version 2.2.16 are available:

  • QDIO Base Support
  • OSA-Express Driver

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2001-04-26 (26 Apr 2001)

linux-2.2.19: experimental patches with dump tools and OCO modules

These experimental patches for kernel version 2.2.19 provide:

  • Linux for S/390 stand alone dump records for generating system memory dumps on dasd volumes and tapes. The dumps can then be analyzed using the independent open-source tool "lcrash".
  • A dummy module that includes headers for all kernel types that the dump analysis tool lcrash needs.

Available OCO modules for linux-2.2.19:

  • LCS driver
  • QDIO Base Support
  • OSA-Express Gigabit Ethernet Driver

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2001-04-18 (18 Apr 2001)

experimental patch for linux-2.2.19

This experimental patch for Linux kernel version 2.2.19 includes:

  • all bug fixes and updates dropped for kernel version 2.2.16 plus some recent ones
  • a backport of the tape device driver
  • support for VM pseudo page fault handling

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2001-04-04 (04 Apr 2001)

experimental patches and modules for linux-2.4.3

These patches are updates to the existing patches for 31 and 64 bit Linux for zSeries:

  • binutils 2.10.0.18
  • gcc 2.95.2
  • gdb 5.0
  • glibc 2.2.2
  • kernel 2.4.3
  • modutils 2.4.5
  • strace 4.2

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2001-03-30 (30 Mar 2001)

alpha patch for linux-2.2.16 and new/updated doc
  • The patch fixes a "partial page write" problem. This problem could lead to possible data corruption when writing to block devices (e.g. DASD or ramdisk).
  • Updated Manual: Linux for zSeries ELF Application Binary Interface.
  • New Manual: Linux for zSeries and S/390 Tape Device Driver Beta version.

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2001-03-22 (22 Mar 2001)

experimental linux-2.2.18 patch

Experimental patch for Linux kernel version 2.2.18 and OCO modules.

The patch includes:

  • all bug fixes and updates dropped for kernel version 2.2.16 plus some recent ones
  • a backport of the tape device driver
  • support for VM pseudo page fault handling

available OCO modules:

  • LCS driver
  • QDIO Base Support
  • OSA-Express Gigabit Ethernet Driver

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2001-03-16 (16 Mar 2001)

updated documentation
  • updated Linux for S/390 ELF Application Binary Interface Supplement manual
  • new Linux for zSeries ELF Application Binary Interface Supplement manual

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2001-02-28 (28 Feb 2001)

collection of alpha patches for linux-2.2.16

This patch contains the following compiler bug fixes:

  • Bug in compiler common code (reload).
  • Wrong type attribute for ICM instruction.
  • Bad prolog code with -mno-backchain option.
  • Bad epilog code for certain small leaf functions.

As it is not easily predictable which source code triggers the code generation bugs fixed here, everyone using the compiler should apply this patch.


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2001-02-23 (23 Feb 2001)

alpha patch for gcc 2.95.2

This collection includes patches for:

  • linux-2.2.16-dasd
  • linux-2.2.16-iucv
  • linux-2.2.16-pgtable
  • linux-2.2.16-sense
  • linux-2.2.16-signal
  • linux-2.2.16-xchg

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2001-02-06 (06 Feb 2001)

alpha patch for gcc 2.95.2

The patch improves the literal pool chunkify heuristics to cope with the case of very large basic blocks requiring very large literal pools.

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2001-01-29 (29 Jan 2001)

alpha patch for DASD-ERP patches based on 2.2.16

The patch adds error recovery functionality to the DASD device driver, which is essentially needed to support ESS (Shark). The device driver is enabled to deal with 'long busy' error conditions (action code '0x1D') and some related errors.


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2001-01-25 (25 Jan 2001)

alpha patch for binutils 2.10

The patch fixes a problem introduced with the optimized PLT code generation. The blueprint for a PLT stub that uses a 16 bit offset is incorrect.


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2001-01-19 (19 Jan 2001)

alpha patch for gcc 2.95.2
experimental OCO lcs module with FDDI support

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2001-01-16 (16 Jan 2001)

Experimental Linux 2.4 Patches and Modules

Experimental Linux 2.4 patches and modules. These patches

  • consist of the previous experimental 64-bit Linux patches adapted to 2.4.0 with some minor bug fixes.
  • have the same functionality as the previous 64-bit Linux patches.
These patches have only undergone limited testing and may not install or function in all environments. Before using these patches read all the warnings and disclaimers on the experimental patches page carefully!
For more details see the Experimental Linux 2.4 Patches and Modules page.

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Contact the IBM team
If you want to contact the Linux on System z IBM team refer to the Contact the Linux on System z IBM team page.

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