Date: Wed, 23 Oct 2013 14:56:56 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-ia64@freebsd.org, mexas@bris.ac.uk Cc: davide@freebsd.org, freebsd-current@freebsd.org Subject: Re: deadlkres: possible deadlock detected for 0xe000000012aed200, blocked for 900014 ticks Message-ID: <201310231456.56359.jhb@freebsd.org> In-Reply-To: <201310231756.r9NHu1T9006700@mech-cluster241.men.bris.ac.uk> References: <201310231756.r9NHu1T9006700@mech-cluster241.men.bris.ac.uk>
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On Wednesday, October 23, 2013 1:56:01 pm Anton Shterenlikht wrote: > >From jhb@freebsd.org Wed Oct 23 16:54:12 2013 > > > >On Wednesday, October 23, 2013 5:27:10 am Anton Shterenlikht wrote: > >> This time alllocks has lots of info. > >> > >> I updated the PR: > >> http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/183007 > > > >Hmm, unfortunately it seems like all the stack traces did not work. There are > >lots of threads blocked on VM-related locks, and CPU 0 is running vm_daemon. > >Probably would need a stack trace of that thread to see what it is doing (this > >is part of why a real crash dump would be far better than a textdump as you > >can get more info after the crash instead of having to know in advance > >everything you want). I saw earlier you had a thread to get textdumps to > >work. Did you ever have regular crashdumps working? > > No. I have another deadlock panic when savecore > is running. That panic dumps core, then on reboot > when savecore is running I get another deadlock > panic, and so on. However, I do get about 8-10gb vmcore* > files before the panic happens. Presumably these > are truncated somehow. > Do you think these incomplete vmcores can still > be useful? If you send some instructions on what > to try, I'll give it a go, or I can post a vmcore > somewhere. Does you get corresponding core.txt.N files from crashinfo? -- John Baldwin
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