Conghui Chen c4f6681045 softirq: disable interrupt when modify timer_list ...

In current code, the timer_list for per cpu can be accessed both in
vmexit and softirq handler. There is a case that, the timer_list is
modifying in vmexit, but an interrupt occur, the timer_list is also
modified in softirq handler. So the time_list may in unpredictable
state. In some platforms, the hv console may hang as its timer handler
is not invoked because of the corruption for timer_list.
So, to fix the issue, disable the interrupt before modifying the
timer_list.

Tracked-On: #3512
Signed-off-by: Yin Fengwei <fengwei.yin@intel.com>
Signed-off-by: Conghui Chen <conghui.chen@intel.com>
Reviewed-by: Li, Fei1 <fei1.li@intel.com>

2019-08-01 15:45:02 +08:00

7.8 KiB

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