linux/arch/x86
Matthew Wilcox 0ca4b6b001 x86: Fix interrupt leak due to migration
When we migrate an interrupt from one CPU to another, we set the
move_in_progress flag and clean up the vectors later once they're not
being used.  If you're unlucky and call destroy_irq() before the vectors
become un-used, the move_in_progress flag is never cleared, which causes
the interrupt to become unusable.

This was discovered by Jesse Brandeburg for whom it manifested as an
MSI-X device refusing to use MSI-X mode when the driver was unloaded
and reloaded repeatedly.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-20 13:17:40 -08:00
..
boot .gitignore updates 2008-10-30 11:38:45 -07:00
configs
crypto
ia32
include/asm Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-11-20 13:09:32 -08:00
kernel x86: Fix interrupt leak due to migration 2008-11-20 13:17:40 -08:00
kvm KVM: Fix pit memory leak if unable to allocate irq source id 2008-11-11 21:01:51 +02:00
lguest lguest: fix irq vectors. 2008-10-31 11:24:28 +11:00
lib
mach-default
mach-generic
mach-rdc321x
mach-voyager x86, voyager: fix smp generic helper voyager breakage 2008-11-11 12:08:53 +01:00
math-emu
mm x86, hibernate: fix breakage on x86_32 with CONFIG_NUMA set 2008-11-12 23:28:51 +01:00
oprofile oprofile: Fix p6 counter overflow check 2008-11-07 17:34:41 +01:00
pci
power x86, hibernate: fix breakage on x86_32 with CONFIG_NUMA set 2008-11-12 23:28:51 +01:00
vdso
video
xen Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-11-07 09:17:59 -08:00
Kconfig Merge branch 'x86/numa' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-11-19 18:53:02 -08:00
Kconfig.cpu x86, bts: improve help text for BTS config 2008-10-28 16:39:37 +01:00
Kconfig.debug
Makefile
Makefile_32.cpu