iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
51cbe7e7c4
linux/arch
History
Borislav Petkov 51cbe7e7c4 x86, MCE: Robustify mcheck_init_device 
BorisO reports that misc_register() fails often on xen. The current code
unregisters the CPU hotplug notifier in that case. If then a CPU is
offlined and onlined back again, we end up with a second timer running
on that CPU, leading to soft lockups and system hangs.

So let's leave the hotcpu notifier always registered - even if
mce_device_create failed for some cores and never unreg it so that we
can deal with the timer handling accordingly.

Reported-and-Tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: http://lkml.kernel.org/r/1403274493-1371-1-git-send-email-boris.ostrovsky@oracle.com
Signed-off-by: Borislav Petkov <bp@suse.de>
2014-07-21 18:14:32 +02:00
..
alpha Merge commit '3cf2f34' into sched/core, to fix build error 2014-06-12 13:46:37 +02:00
arc ARC: [SMP] Enable icache coherency 2014-06-26 11:59:01 +05:30
arm Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-07-19 06:27:55 -10:00
arm64 Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-07-19 06:27:55 -10:00
avr32 Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next 2014-06-03 12:57:53 -07:00
blackfin blackfin updates for Linux 3.16 2014-06-12 20:08:47 -07:00
c6x DeviceTree for 3.16: 2014-06-04 10:02:38 -07:00
cris cris: update comments for generic idle conversion 2014-06-06 16:08:18 -07:00
frv sys_sgetmask/sys_ssetmask: add CONFIG_SGETMASK_SYSCALL 2014-06-04 16:54:14 -07:00
hexagon
ia64 ia64: arch/ia64/include/uapi/asm/fcntl.h needs personality.h 2014-06-23 16:47:44 -07:00
m32r
m68k m68k: Export mach_random_get_entropy to modules 2014-07-11 10:37:53 +02:00
metag Merge commit '3cf2f34' into sched/core, to fix build error 2014-06-12 13:46:37 +02:00
microblaze Microblaze patches for 3.16-rc1 2014-06-05 16:15:33 -07:00
mips A bunch of one-liners (except the s390 one). 2014-07-01 09:27:34 -07:00
mn10300 sys_sgetmask/sys_ssetmask: add CONFIG_SGETMASK_SYSCALL 2014-06-04 16:54:14 -07:00
openrisc DeviceTree for 3.16: 2014-06-04 10:02:38 -07:00
parisc Merge branch 'parisc-3.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux 2014-07-13 12:02:05 -07:00
powerpc Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-07-19 06:27:55 -10:00
s390 A bunch of one-liners (except the s390 one). 2014-07-01 09:27:34 -07:00
score
sh Merge commit '3cf2f34' into sched/core, to fix build error 2014-06-12 13:46:37 +02:00
sparc locking/mutex: Disable optimistic spinning on some architectures 2014-07-16 14:57:07 +02:00
tile Merge commit '3cf2f34' into sched/core, to fix build error 2014-06-12 13:46:37 +02:00
um um: segv: Save regs only in case of a kernel mode fault 2014-07-20 13:39:27 +02:00
unicore32 unicore32: Remove ARCH_HAS_CPUFREQ config option 2014-06-20 08:22:41 +08:00
x86 x86, MCE: Robustify mcheck_init_device 2014-07-21 18:14:32 +02:00
xtensa Merge commit '3cf2f34' into sched/core, to fix build error 2014-06-12 13:46:37 +02:00
.gitignore
Kconfig