Date: Tue, 26 Jul 2011 12:32:59 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Herve Boulouis <amon@aelita.org> Cc: rmacklem@freebsd.org, freebsd-stable@freebsd.org Subject: Re: Sleeping thread owns a nonsleepable lock panic (& lor) Message-ID: <20110726093258.GF17489@deviant.kiev.zoral.com.ua> In-Reply-To: <20110726111752.GG17204@ra.aabs> References: <20110725102107.GB17204@ra.aabs> <20110725085902.GM17489@deviant.kiev.zoral.com.ua> <20110726094913.GF17204@ra.aabs> <20110726090652.GE17489@deviant.kiev.zoral.com.ua> <20110726111752.GG17204@ra.aabs>
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[-- Attachment #1 --] On Tue, Jul 26, 2011 at 01:17:52PM +0200, Herve Boulouis wrote: > Le 26/07/2011 12:06, Kostik Belousov a écrit: > > On Tue, Jul 26, 2011 at 11:49:13AM +0200, Herve Boulouis wrote: > > > Le 25/07/2011 11:59, Kostik Belousov a ?crit: > > > > > > Ok the patched server crashed this morning strangely : all httpd processes were stuck in nfs or vmopar > > > and were unkillable. Below is the full ps. > > > > Please see the > > http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html > > for information required to debug the deadlocks. > > the box was not stricly deadlocked since I was able to interact with it but I suppose you want me to > break into debugger when the symptoms appears again and report all the commands listed in the handbook > deadlock section ? Exactly. I think everything was hung that accessed an nfs mount point. From the usermode, procstat -kk could catch some interesting information, but it is redundant if ddb output is captured. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEARECAAYFAk4uicoACgkQC3+MBN1Mb4i7RACgocU5dOEiHnWgt3fgv4Hym8Y2 q/oAoKZHSahU1cWu/smQ/ZyiargMeH3A =e+BT -----END PGP SIGNATURE-----
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