On Fri, Aug 14, 2009 at 03:47:16PM +0200, Ian FREISLICH wrote: > Ruslan Ermilov wrote: > > On Fri, Aug 14, 2009 at 10:47:05AM +0200, Ian FREISLICH wrote: > > > Do you have any idea why kernel dumps are not working as shown in > > > the OP? > > > > > There was a message, "Attempt to write outside dump device boundaries.", > > that explains that. Search the mailing list archives where I explained > > the underlying bug with current versions of FreeBSD (in short page maps > > get updated while we're writing a dump, due to interrupts still enabled). > > And then, this bug is probably why my dumps have been unusable since > about 12 months now? These (2) servers have a continuous interrupt > rate in excess of 40k/s, network related, so interrupts during > dumping are highly likely. Reading that thread I'm given to believe > that the problem exists only for mini-dumps. I've had crashes > without cores with (and without) mini-dumps enabled, but I've only > recently started capturing console output, so I'll see what happens > on its next crash. They reliably crash at least once a week. > True: only on SMP and only with minidumps enabled. Cheers, -- Ruslan Ermilov ru_at_FreeBSD.org FreeBSD committerReceived on Fri Aug 14 2009 - 13:01:41 UTC
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