Re: [PATCH] [22/28] x86: MCE: Default to panic timeout for machinechecks

[Hidetoshi Seto]

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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/