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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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680b6cfd3c
If MCE handler is called but none of mces_seen have machine check event which might signal the MCE (i.e. event higher than MCE_KEEP_SEVERITY), panic with "Machine check from unknown source" will be taken since the MCE is assumed to be signaled from external agent or so. Usually mces_seen never point MCE_KEEP_SEVERITY event such as CE. But it can happen because initial value of mces_seen is accidentally modified by mce_no_way_out() - in case if mce_no_way_out() run through all banks and the last bank has the CE, mces_seen points the CE and the "panic by unknown" will not be taken. This patch fixes this undesired behavior, and clarifies the logic. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jin Dongming <jin.dongming@np.css.fujitsu.com> LKML-Reference: <4A94E244.3020301@jp.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Reported-by: Jin Dongming <jin.dongming@np.css.fujitsu.com> |
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| .. | ||
| Makefile | ||
| mce_amd.c | ||
| mce_intel.c | ||
| mce-inject.c | ||
| mce-internal.h | ||
| mce-severity.c | ||
| mce.c | ||
| p5.c | ||
| therm_throt.c | ||
| threshold.c | ||
| winchip.c | ||