Messages in this thread | | | Date | Tue, 29 May 2018 19:41:05 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH 2/3 V2] x86/mce: Fix incorrect "Machine check from unknown source" message |
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On Tue, May 29, 2018 at 09:15:49AM -0700, Luck, Tony wrote: > @@ -1287,12 +1292,17 @@ void do_machine_check(struct pt_regs *regs, long error_code) > no_way_out = worst >= MCE_PANIC_SEVERITY; > } else { > /* > - * Local MCE skipped calling mce_reign() > - * If we found a fatal error, we need to panic here. > + * If there was a fatal machine check we should have > + * already called mce_panic earlier in this function. > + * Since we re-read the banks, we might have found > + * something new. Check again to see if we found a > + * fatal error. We call "mce_severity()" again to > + * make sure we have the right "msg". > */ > - if (worst >= MCE_PANIC_SEVERITY && mca_cfg.tolerant < 3) > - mce_panic("Machine check from unknown source", > - NULL, NULL); > + if (worst >= MCE_PANIC_SEVERITY && mca_cfg.tolerant < 3) { > + severity = mce_severity(&m, cfg->tolerant, &msg, true); > + mce_panic("Local fatal machine check!", &m, msg); > + } > }
It is still assigning. I'll simply do:
if (worst >= MCE_PANIC_SEVERITY && mca_cfg.tolerant < 3) { mce_severity(&m, cfg->tolerant, &msg, true); mce_panic("Local fatal machine check!", &m, msg); }
when committing.
Btw, I did some cleaning up ontop. Please have a look and let me know if it is too ugly to live... :)
https://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git/log/?h=rc7%2b0-ras
Thx.
-- Regards/Gruss, Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
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