Messages in this thread | | | From | Keith Owens <> | Subject | Re: Oops assist... | Date | Wed, 05 May 1999 13:24:27 +1000 |
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On Tue, 04 May 1999 21:48:40 +0100, David Woodhouse <David.Woodhouse@mvhi.com> wrote: >alan@lxorguk.ukuu.org.uk said: >> Even more ideal would be to dump the oops to somewhere non volatile >> over a reboot. I'm not sure there are good candidates for this on a >> PC. >You ought to be able to manage a UDP syslog message on the way down.
Not really. Anything that requires an interrupt and/or bottom half is potentially hosed when the machine is dying. The only guaranteed way I know of capturing an oops in a total machine crash is via a serial console. The serial console I/O runs in polled mode and any kernel state, no need to worry about interrupts or bh scheduling.
OTOH, it would be nice to save some data in memory and pick it up on reboot. Does anybody know a guaranteed way of saving data in memory across a soft reboot? People have looked at this in the past but AFAIK, nobody succeeded.
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