2005-07-11 kernel 2.6.5 bug fix patch 24 ("April 2004")

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linux-2.6.5-s390-24-april2004.tar.gz / MD5 ... accumulated patch, recommended (2005-07-11)

linux-2.6.5-s390-24-april2004-patches.tar.gz / MD5 ... per-problem-patches, recommended (2005-07-11)

This patch contains the following linux kernel bug fix:

Description:
kernel: I/O interrupt delivery.
Symptom:
All I/O interrupts are delivered to CPU #0. This can be seen by looking at the numbers in /proc/interrupts.
Problem:
The __ctl_load/__ctl_store inline assembly does not have correct constraints. The missing constraint can cause the compiler to generate incorrect code. This happens for the smp_ctl_bit_callback function that is used to set up the control register 6 which contains the I/O interruption subclass mask. Only the boot cpu has the correct content in cr6.
Solution:
Fix the inline assembly constraints of __ctl_load/__ctl_store. The patch fixes the same bug in the save_access_regs/ restore_access_regs functions as well.
Problem-ID:
16524

Everybody should apply this patch.

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

linux-2.6.5.tar.gz (see www.kernel.org/pub/linux/kernel/v2.6)
+ linux-2.6.5-s390-base-april2004.diff (IBM)
+ linux-2.6.5-s390-01-april2004.diff (IBM)
+ xipfs612 (see linuxvm.org/patches/index.html)
+ xipfs622 (see linuxvm.org/patches/index.html)
+ linux-2.6.5-s390-02-april2004.diff (IBM)
+ linux-2.6.5-s390-03-april2004.diff (IBM)
+ single threaded workqueue patch (see marc.theaimsgroup.com/?l=bk-commits-head&m=108305028322900&q=raw)
+ linux-2.6.5-s390-04-april2004.diff (IBM)
+ linux-2.6.5-s390-05-april2004.diff (IBM)
+ linux-2.6.5-s390-06-april2004.diff (IBM)
+ linux-2.6.5-s390-07-april2004.diff (IBM)
+ linux-2.6.5-s390-08-april2004.diff (IBM)
+ linux-2.6.5-s390-09-april2004.diff (IBM)
+ linux-2.6.5-s390-10-april2004.diff (IBM)
+ linux-2.6.5-s390-11-april2004.diff (IBM)
+ linux-2.6.5-s390-12-april2004.diff (IBM)
+ linux-2.6.5-s390-13-april2004.diff (IBM)
+ linux-2.6.5-s390-14-april2004.diff (IBM)
+ linux-2.6.5-s390-15-april2004.diff (IBM)
+ linux-2.6.5-s390-16-april2004.diff (IBM)
+ linux-2.6.5-s390-17-april2004.diff (IBM)
+ linux-2.6.5-s390-18-april2004.diff (IBM)
+ linux-2.6.5-s390-19-april2004.diff (IBM)
+ linux-2.6.5-s390-20-april2004.diff (IBM)
+ linux-2.6.5-s390-21-april2004.diff (IBM)
+ linux-2.6.5-s390-22-april2004.diff (IBM)
+ linux-2.6.5-s390-23-april2004.diff (IBM)
+ linux-2.6.5-s390-24-april2004.diff (IBM)

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.