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. Ian -- Ian FreislichReceived on Fri Aug 14 2009 - 11:47:06 UTC
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