Suresh Siddha 7f41c2e152 x86, irq: Check move_in_progress before freeing the vector mapping ... With the recent irq migration fixes (post 2.6.32), Gary Hade has noticed "No IRQ handler for vector" messages during the 2.6.33-rc1 kernel boot on IBM AMD platforms and root caused the issue to this commit: > commit 23359a88e7 > Author: Suresh Siddha <suresh.b.siddha@intel.com> > Date: Mon Oct 26 14:24:33 2009 -0800 > > x86: Remove move_cleanup_count from irq_cfg As part of this patch, we have removed the move_cleanup_count check in smp_irq_move_cleanup_interrupt(). With this change, we can run into a situation where an irq cleanup interrupt on a cpu can cleanup the vector mappings associated with multiple irqs, of which one of the irq's migration might be still in progress. As such when that irq hits the old cpu, we get the "No IRQ handler" messages. Fix this by checking for the irq_cfg's move_in_progress and if the move is still in progress delay the vector cleanup to another irq cleanup interrupt request (which will happen when the irq starts arriving at the new cpu destination). Reported-and-tested-by: Gary Hade <garyhade@us.ibm.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <1262804191.2732.7.camel@sbs-t61.sc.intel.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>		2010-01-06 12:08:43 -08:00
..
boot	Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent	2009-12-28 09:23:13 +01:00
configs
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6	2009-12-01 15:16:22 +08:00
ia32	Unify sys_mmap*	2009-12-11 06:44:29 -05:00
include/asm	x86: copy_from_user() should not return -EFAULT	2010-01-05 13:45:06 -08:00
kernel	x86, irq: Check move_in_progress before freeing the vector mapping	2010-01-06 12:08:43 -08:00
kvm	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2009-12-14 09:58:24 -08:00
lguest
lib	Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent	2009-12-28 09:23:13 +01:00
math-emu
mm	x86, kmemcheck: Use KERN_WARNING for error reporting	2009-12-28 10:28:35 +01:00
oprofile
pci	x86/pci: Intel ioh bus num reg accessing fix	2010-01-04 13:21:51 -08:00
power
tools	Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent	2009-12-28 09:23:13 +01:00
vdso
video
xen	locking: Convert raw_spinlock to arch_spinlock	2009-12-14 23:55:32 +01:00
Kbuild
Kconfig	cs5535: drop the Geode-specific MFGPT/GPIO code	2009-12-15 08:53:28 -08:00
Kconfig.cpu	Revert "x86: Side-step lguest problem by only building cmpxchg8b_emu for pre-Pentium"	2010-01-04 19:35:49 -08:00
Kconfig.debug	Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-12-11 20:47:30 -08:00
Makefile
Makefile_32.cpu	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-12-08 13:38:11 -08:00