Kernel 2.4 based: June 2003 stream

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linux-2.4.21-s390-11-june2003.tar.gz / MD5 ... accumulated patch, recommended (2004-03-24)

linux-2.4.21-s390-11-june2003-patches.tar.gz / MD5 ... per-problem-patches, recommended (2004-03-24)

These patches contain the following linux kernel bug fixes:

Description:

cmm: Adressing exception in collaborative memory management (cmm).

Symptom:

Adressing exception when using cmm with more than 2047MB of storage.

Problem:

The diag10 used to indicate to VM that a page is now unused can only be used if the page resides below 2047 MB.

Solution:

Add an if statement to avoid the diag10 if the allocated pages reside above 2047MB.

Problem-ID:

-

Note:

applicable for 64-bit Linux, only

Description:

cmm: Missing default value for configuration option

Symptom:

Make oldconfig waits for user input

Problem:

Missing config option CONFIG_CMM_IUCV

Solution:

Add missing config option CONFIG_CMM_IUCV to defconfig

Problem-ID:

-

Description:

dasd: Duplicate device entry in /proc/dasd/devices

Symptom:

The first devno can be added more than once.
The additional entries showing up as 'unknown' in /proc/dasd/devices and they waste major/minor numbers.

Problem:

dasd_devindex_from_devno returns '0' for the first device entry but dasd_add_range checks for '> 0' to determine if the devindex is valid.

Solution:

Check for '>= 0' as a valid devindex.

Problem-ID:

6511

Description:

dasd: problems when setting a DASD device online/offline

Symptom:

No request IRQ message during device bring-up.
Sometimes a kernel panic.

Problem:

CIO does a path verification (during request_IRQ) which calls the DASD oper_handler. This leads to a second thread trying to get device online without synchronization (race condition).

Solution:

The DASD oper_handler has to trigger device bring-up only if the device is really down.

Problem-ID:

6608

Description:

iucv: IUCV send failure.

Symptom:

strace of ping shows that sendmsg returns ENOBUFS.

Problem:

tx_queue_len of the iucv net_device is set to zero.

Solution:

Set tx_queue_len to the message limit returned from the ACCEPT function of IUCV.

Problem-ID:

6157

Description:

iucv: unable to reconnect after reboot

Symptom:

Connection FSM state: Stopped in /proc/net/oiucv/iucv0/statistics of iucv-partner of the rebooting system

Problem:

The iucv-partner of a rebooting system does not try to reconnect when remote partner severed connection

Solution:

Added connect retry when remote severed connection

Problem-ID:

6631

Note:

This patch fixes a problem introduced with the fix for Problem-ID 5912 in linux-2.4.21-s390-09-june2003.diff (2004-01-30).

Description:

qeth: incorrect source MAC addresses

Symptom:

Inbound source MAC address incorrect with fake_ll

Problem:

Source MAC address was copied from wrong place

Solution:

Copy source MAC from right place

Problem-ID:

6097

Description:

sclp: Console driver causes bottom-half handling despite disabled interrupts.

Symptom:

Deadlock situations in various drivers (e.g. LVM) when there is a lot of console output.

Problem:

When the console buffer is full, SCLP opens up interupts and waits synchronously for an external interrupt. After the interrupt occured, the bottom half is erroneously handled.

Solution:

Disable bottom-half handling while waiting for the interrupt.

Problem-ID:

6617

Description:

sclp: VM guests receiving a signal shutdown may not logoff correctly.

Symptom:

Invoking a 'signal shutdown' command on a 64 bit VM guest will sometimes not log off a VM guest, even though Linux is shut down correctly.

Problem:

On 64 bit systems, SMP function signal_processor_ps stores a 64 bit value at a 32 bit location. As a result, the signal quiesce sense loop is rendered ineffective.

Solution:

Correct respective parameter type of signal_processor_ps.

Problem-ID:

6760

Note:

applicable for 64-bit Linux, only

Description:

z90crypt fails to detect devices in domain 15

Symptom:

If PCICCs or PCIXCCs are present only in domain 15, they are not found

Problem:

Domain 15 was being ignored

Solution:

Include domain 15 in search for devices

Problem-ID:

6842

Description:

z90crypt: Unneeded message "Error in get_crypto_request_buffer: 16"

Symptom:

Unneeded message "Error in get_crypto_request_buffer: 16"

Problem:

Issuing error message when it is not appropriate

Solution:

remove error message

Problem-ID:

6855

Everybody should apply this patch.

To create the complete linux kernel sources, the following patches need to be applied in sequence:

linux-2.4.21.tar.gz (see www.kernel.org)
+ linux-2.4.21-s390-june2003.diff (IBM)
+ linux-2.4.21-s390-01-june2003.diff (IBM)
+ linux-2.4.21-s390-02-june2003.diff (IBM)
+ linux-2.4.21-s390-03-june2003.diff (IBM)
+ linux-2.4.21-s390-04-june2003.diff (IBM)
+ linux-2.4.21-s390-05-june2003.diff (IBM)
+ linux-2.4.21-s390-06-june2003.diff (IBM)
+ linux-2.4.21-s390-07-june2003.diff (IBM)
+ linux-2.4.21-s390-08-june2003.diff (IBM)
+ linux-2.4.21-s390-08-june2003.diff (IBM)
+ linux-2.4.21-s390-09-june2003.diff (IBM)
+ linux-2.4.21-s390-10-june2003.diff (IBM)
+ xip2fs1 (see linuxvm.org/patches/index.html)
+ xip2fs2 (see linuxvm.org/patches/index.html)
+ linux-2.4.21-s390-11-june2003.diff (IBM)

Note: If On-demand timer is required, apply as last patch:
+ linux-2.4.21-s390-timer-03-june2003.diff (IBM)

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