Messages in this thread | | | Date | Fri, 17 Apr 2009 20:24:16 +0900 | From | Hidetoshi Seto <> | Subject | Re: [PATCH] [22/28] x86: MCE: Default to panic timeout for machine checks |
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Andi Kleen wrote: > Fatal machine checks can be logged to disk after boot, but only if > the system did a warm reboot. That's unfortunately difficult with the > default panic behaviour, which waits forever and the admin has to > press the power button because modern systems usually miss a reset button. > This clears the machine checks in the registers and make > it impossible to log them. > > This patch changes the default for machine check panic to always > reboot after 30s. Then the mce can be successfully logged after > reboot.
In case if user already set panic_timeout to 5s, the that user need to wait extra 25s for machine check panic... ?
The idea is good, but I think some switch like "no_reboot_on_mce" would be required.
Thanks, H.Seto
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