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184e1fdfea
If one CPU has no_way_out == 1, all other CPUs should have no_way_out == 1. But despite global_nwo is read after mce_callin, global_nwo is updated after mce_callin too. So it is possible that some CPU read global_nwo before some other CPU update global_nwo, so that no_way_out == 1 for some CPU, while no_way_out == 0 for some other CPU. This patch fixes this race condition via moving mce_callin updating after global_nwo updating, with a smp_wmb in between. A smp_rmb is added between their reading too. Signed-off-by: Huang Ying <ying.huang@intel.com> Acked-by: Andi Kleen <ak@linux.intel.com> Acked-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> |
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| .. | ||
| k7.c | ||
| Makefile | ||
| mce_amd_64.c | ||
| mce_intel_64.c | ||
| mce_intel.c | ||
| mce-inject.c | ||
| mce-internal.h | ||
| mce-severity.c | ||
| mce.c | ||
| mce.h | ||
| non-fatal.c | ||
| p4.c | ||
| p5.c | ||
| p6.c | ||
| therm_throt.c | ||
| threshold.c | ||
| winchip.c | ||