Messages in this thread |  | | | Subject | Re: [RFC][Patch] Adding kmsg_dump() to reboot/halt/poweroff/emergency_restart path | | From | Artem Bityutskiy <> | | Date | Tue, 19 Oct 2010 11:51:12 +0300 |
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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 (Артём Битюцкий)
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