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Kernel downloads for the "Development stream"

Download Description
upstream kernel 2.6.32 kernel 2.6.32 - upstream with feature descriptions.
linux-2.6.32-s390-kerntypes.tar.gz / MD5 "Development Stream" kernel 2.6.32 - kerntypes (optional)
linux-2.6.32-s390-message-catalog.tar.gz / MD5 "Development Stream" kernel 2.6.32 - message-catalog (optional)

2009-12-11: kernel 2.6.32 - upstream (feature description)

To download the linux-2.6.32.tar.gz visit: http://www.kernel.org/pub/linux/kernel/v2.6

The upstream kernel 2.6.32 contains the following functionality developed by the Linux on System z development team:

Summary:
qeth: HiperSockets SIGA retry
Description:
Without this patch, HiperSockets streaming workload can run into performance problems when the qdio receive-buffers get filled up on the receiver side: When qeth sends packets and the receiver has no empty buffers available, the packets are lost and have to be retransmitted either by TCP or the application.

With this patch, qeth re-sends the packet (up to three times) - without monopolizing the HiperSockets interface - before the packet is lost.


Summary:
kernel: Add Call Home data on halt and panic if running in LPAR
Description:
This feature allows to build a kernel that automatically reports a problem when Linux experiences a kernel panic, using the Call Home function to send automatically collected problem data to the IBM service organization through the Service Element (if that is set up and configured appropriately).

Note that this feature can only be used when running Linux on System z in LPAR.

Please refer to the 'Device Drivers, Features, and Commands' manual (Documentation), Chapter 'Activating automatic problem reporting'.


Summary:
kernel: Extra kernel parameter for SCSI IPL
Description:
When booting from a SCSI boot device, you can now specify kernel parameters in addition to the existing kernel parameters that are used by your boot configuration. To specify kernel parameters, use the SCPDATA option of the CP LOADDEV command or enter kernel parameters in the 'Operating system specific load parameters' panel when IPLing a system from the HMC.

Please refer to the 'Device Drivers, Features, and Commands' manual (Documentation), Chapter 'Booting Linux', section 'Providing additional kernel parameters when booting'.

2009-12-11: "Development Stream" kernel 2.6.32 kerntypes (feature - optional patch)

linux-2.6.32-s390-kerntypes.tar.gz / MD5 ... recommended (2009-12-11)

This patch contains:

Summary:
Kernel types for lcrash dump analysis.
Description:
Add a dummy module that contains all relevant kernel types that the dump analysis tool lcrash needs. The kernel type information is used as input by the lcrash utility when analysing system crash dumps or the live system.

This patch is optional as it is very unlikely to be accepted in upstream kernel, but is recommended for all distributions which are built based on the 'Development stream'.

2009-12-11: 'Development Stream' kernel 2.6.32 message catalog (feature - optional patch)

linux-2.6.32-s390-message-catalog.tar.gz / MD5 ... recommended (2009-12-11)

This patch contains:

Summary:
Kernel message catalog.
Description:
Add support for automatic message tags to the printk macro families dev_xyz and pr_xyz. The message tag consists of a component name and a 24 bit hash of the message text. For each message that is documented in the included kernel message catalog a man page can be created with a script (which is included in the patch). The generated man pages contain explanatory text that is intended to help understand the messages.

Note that only s390 specific messages are prepared appropriately and included in the generated message catalog.

This patch is optional as it is very unlikely to be accepted in upstream kernel, but is recommended for all distributions which are built based on the 'Development stream'.

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.