Re: [RFC][Patch] Adding kmsg_dump() toreboot/halt/poweroff/emergency_restart path

[Artem Bityutskiy]

On Tue, 2010-10-19 at 10:52 +0200, ext KOSAKI Motohiro wrote:
> > Hi,
> > 
> > Final messages from reboot, halt and poweroff aren't output to disk because klogd/syslogd 
> > has been killed and root file system has been turned read-only.
> > 
> > Final messages from emergency_restart aren't output to disk as well because system may
> > reboot before klogd/syslogd outputs messages to disk.
> > 
> > Therefore, it is better to put kmsg_dumper in reboot/halt/poweroff/emergency_restart path.
> > Any comments/advices are welcome.
> 
> I think mtdoops user don't want to dump logs if a system reboot/poweroff
> safely because mtd device have write count limitation. and they are main
> user of kmsg_dump().

Right, at least this is how we use mtdoops - we log crashes.

-- 
Best Regards,
Artem Bityutskiy (ÐÑÑÑÐ ÐÐÑÑÑÐÐÐ)

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