Messages in this thread | | | Date | Tue, 21 Sep 1999 09:41:24 +0200 (CEST) | From | Ingo Molnar <> | Subject | Re: [x86,SMP,patch] smp-2.3.18, please test. |
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On Mon, 20 Sep 1999, Pete Wyckoff wrote:
> > > I was really looking forward to getting some info from the NMI watchdog, > > > but it stays silent. Any guesses where to look next on my hard-lockup > > > problem? > > > > could you kill syslogd and klogd and run 'dmesg -n 8' - this makes it sure > > all kernel messages go to the console immediately without buffering. > > Ensured no loggers were running, killed off everything else useless, > and hit dmesg -n 8. Same silent result. Bad hardware?
yes, the kind of workload you are generating hits the hardware really hard.
_such_ types of lockups (if they are software) can only be debugged with IKD's print-EIP component. See the IKD patch how to use that, it has a learning curve, but since you can reproduce this easily it could debug the lockup.
-- mingo
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