Date: Thu, 17 Aug 2006 15:25:02 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Eric Anderson <anderson@centtech.com> Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: 6-STABLE snapshot (background fsck) lock-up Message-ID: <20060817122502.GF1483@deviant.kiev.zoral.com.ua> In-Reply-To: <44E45C3F.6060901@centtech.com> References: <44E45C3F.6060901@centtech.com>
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[-- Attachment #1 --] On Thu, Aug 17, 2006 at 07:08:31AM -0500, Eric Anderson wrote: > I've seen this several times now, but this time I got a dump. > Basically, the system comes up after unclean shutdown, throws a bunch of > filesystems into the background fsck list, and begins 60 seconds later. > After some amount of time, the system will lock up, presumably hung > waiting on locks. > > Here's some info: > lock type bufwait: EXCL (count 1) by thread 0xffffff0128812980 (pid 804) > lock type getblk: EXCL (count 1) by thread 0xffffff0128812980 (pid > 804)Locked vnodes > > 0xffffff01c5c9f000: tag ufs, type VREG > usecount 1, writecount 0, refcount 13656 mountedhere 0 > flags (VV_SYSTEM) > v_object 0xffffff01b09542a0 ref 0 pages 1691637 > lock type snaplk: EXCL (count 1) by thread 0xffffff0128812980 (pid > 804) > ino 4, on dev label/vol4 > > > > How can I use kgdb to get more debugging information from this? > Look at the http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html for instructions for ddb. What is the date of the system checkout ? [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFE5GAdC3+MBN1Mb4gRAlDTAJ9Mo0wcfn2xSbjEgZgCNLtsMg87DQCgn4+g sjNTz9gvFphJxyxaeQKM6pA= =GLdy -----END PGP SIGNATURE-----help
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