Re: The stability crisis

Chuck Lever (cel@monkey.org)
Thu, 1 Jul 1999 22:45:38 -0400 (EDT)


On Thu, 1 Jul 1999, Anthony Barbachan wrote:
> > having a nice integrated kernel debugger like SGI's kdb would be great
> > to resolve problems like these. the patch to dump an oops to a floppy is
> > also good, but would it be possible to dump it to a file or a small
> > partition on an internal disk instead? Linus, including a feature like
> > that would make it a whole lot easier to get high quality oops reports to
> > developers.
>
> How about dumping to the swap partition along with a special sequence of
> bytes used as a flag. This way when the machine is brought back up the
> kernel can then use that special sequence of bytes along with the debug data
> to generate a bug report.

Solaris handles a kernel savecore dump in this way. a simple user-space
program can run via /etc/rc before doing a swapon during bootup to collect
the oops information from the swap areas, and could even be taught to run
ksymoops automatically and mail the output to root.

- Chuck Lever

--
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The Linux Scalability project: http://www.citi.umich.edu/projects/linux-scalability/

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