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| author | Borislav Petkov <bp@suse.de> | 2014-06-20 23:16:45 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2014-06-24 15:17:01 +0200 |
| commit | 27c934158c5be0bebfb2970da521b9d9efc0058b (patch) | |
| tree | e943e5c07306850caca97f81c8c387b826c7e2f8 /drivers/gpu/drm/radeon/radeon_mode.h | |
| parent | 38356c1fbd8cd0f44a32ede2c97f0eb639d06613 (diff) | |
| download | blackbird-op-linux-27c934158c5be0bebfb2970da521b9d9efc0058b.tar.gz blackbird-op-linux-27c934158c5be0bebfb2970da521b9d9efc0058b.zip | |
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>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_mode.h')
0 files changed, 0 insertions, 0 deletions
