Date: Mon, 11 May 2009 19:00:51 +0200 From: Lars Engels <lars.engels@0x20.net> To: Jon Loeliger <jdl@jdl.com> Cc: freebsd-current@freebsd.org Subject: Re: Lock order reversal Message-ID: <20090511170051.GQ56667@e.0x20.net> In-Reply-To: <E1M3WDW-0000EF-CW@jdl.com> References: <E1M3WDW-0000EF-CW@jdl.com>
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[-- Attachment #1 --] On Mon, May 11, 2009 at 09:10:54AM -0500, Jon Loeliger wrote: > > Folks, > > Curious if anyone saw the lock order reversal in my > post from yesterday? Known issues? > > There appear to be 3 cases, highlighted below: > > 1st 0xc39e7a60 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2555 > 2nd 0xc3ffee00 dirhash (dirhash) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:275 > > 1st 0xc4224164 ufs (ufs) @ /usr/src/sys/kern/vfs_mount.c:1050 > 2nd 0xc4224df4 devfs (devfs) @ /usr/src/sys/kern/vfs_subr.c:2101 > > 1st 0xc44edc2c filedesc structure (filedesc structure) @ /usr/src/sys/kern/kern_descrip.c:1076 > 2nd 0xc4a9737c ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:4109 > > Thanks, > jdl Hi Jon, all three LORs are well known and listed here: http://sources.zabbadoz.net/freebsd/lor.html Cheers Lars [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkoIWcIACgkQKc512sD3afiOCQCeOP0/okdDJBs206VGs/cMWTkr 2hsAn3lyXsLStFoKMlT/CQmNLX+kQv7A =d7aB -----END PGP SIGNATURE-----help
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