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8fe7e94eb7
linux/arch/x86
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Robert Richter 8fe7e94eb7 oprofile, x86: Fix race in nmi handler while starting counters 
In some rare cases, nmis are generated immediately after the nmi
handler of the cpu was started. This causes the counter not to be
enabled. Before enabling the nmi handlers we need to set variable
ctr_running first and make sure its value is written to memory.

Also, the patch makes all existing barriers a memory barrier instead
of a compiler barrier only.

Reported-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Cc: <stable@kernel.org> # .35+
Signed-off-by: Robert Richter <robert.richter@amd.com>
2011-06-15 14:31:29 +02:00
..
boot x86, setup: When probing memory with e801, use ax/bx as a pair 2011-04-25 14:52:37 -07:00
configs cgroup: remove the ns_cgroup 2011-05-26 17:12:34 -07:00
crypto crypto: aesni-intel - fix aesni build on i386 2011-05-18 09:03:34 +10:00
ia32 ns: Wire up the setns system call 2011-05-28 10:48:39 -07:00
include/asm Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2011-05-29 11:18:09 -07:00
kernel Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-06-13 10:45:49 -07:00
kvm Merge branch 'kvm-updates/3.0' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2011-06-07 19:06:28 -07:00
lguest lguest: fix timer interrupt setup 2011-05-30 11:14:10 +09:30
lib Merge branches 'x86-apic-for-linus', 'x86-asm-for-linus' and 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-05-19 17:49:35 -07:00
math-emu
mm x86: Move do_page_fault()'s error path under unlikely() 2011-05-26 13:54:03 +02:00
net net: filter: Just In Time compiler for x86-64 2011-04-27 23:05:08 -07:00
oprofile oprofile, x86: Fix race in nmi handler while starting counters 2011-06-15 14:31:29 +02:00
pci Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-05-23 15:39:34 -07:00
platform x86, efi: Retain boot service code until after switching to virtual mode 2011-05-25 17:03:53 -07:00
power x86, tsc, sched: Recompute cyc2ns_offset's during resume from sleep states 2010-08-20 14:59:02 +02:00
tools
vdso x86: vdso: Remove unused variable 2011-05-26 13:17:35 +02:00
video
xen xen: off by one errors in multicalls.c 2011-06-03 16:04:02 -04:00
.gitignore
Kbuild net: filter: Just In Time compiler for x86-64 2011-04-27 23:05:08 -07:00
Kconfig arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,BIT_LE,LAST_BIT} 2011-05-26 17:12:38 -07:00
Kconfig.cpu x86, cpu: Move AMD Elan Kconfig under "Processor family" 2011-04-08 13:01:25 -07:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-21 13:06:00 -07:00
Makefile_32.cpu x86, cpu: Move AMD Elan Kconfig under "Processor family" 2011-04-08 13:01:25 -07:00