mirror of https://gitee.com/openkylin/linux.git
9aaef96f61
del_timer_sync() can cause a deadlock when called in interrupt context. It is used with on_each_cpu() in some parts for sysfs files like bank*, check_interval, cmci_disabled and ignore_ce. However, use of on_each_cpu() results in calling the function passed as the argument in interrupt context. This causes a flood of nested warnings from del_timer_sync() (it runs on each CPU) caused even by a simple file access like: $ echo 300 > /sys/devices/system/machinecheck/machinecheck0/check_interval Fortunately, these MCE-specific files are rarely used and AFAIK only few MCE geeks experience this warning. To remove the warning, move timer deletion outside of the interrupt context. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> |
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| .. | ||
| Makefile | ||
| mce-apei.c | ||
| mce-inject.c | ||
| mce-internal.h | ||
| mce-severity.c | ||
| mce.c | ||
| mce_amd.c | ||
| mce_intel.c | ||
| p5.c | ||
| therm_throt.c | ||
| threshold.c | ||
| winchip.c | ||