Subject: Re: CVS commit: src (vnode stuff)
To: None <email@example.com>
From: Geoff Wing <firstname.lastname@example.org>
Date: 12/10/2006 11:05:30
Chuck Silvers <email@example.com> typed:
: Module Name: src
: Committed By: chs
: Date: Sat Dec 9 16:11:52 UTC 2006
: Modified Files:
: Log Message:
: a smorgasbord of improvements to vnode locking and path lookup:
: - LOCKPARENT is no longer relevant for lookup(), relookup() or VOP_LOOKUP().
: these now always return the parent vnode locked. namei() works as before.
: lookup() and various other paths no longer acquire vnode locks in the
: wrong order via vrele(). fixes PR 32535.
: as a nice side effect, path lookup is also up to 25% faster.
: - the above allows us to get rid of PDIRUNLOCK.
: - also get rid of WANTPARENT (just use LOCKPARENT and unlock it).
: - remove an assumption in layer_node_find() that all file systems implement
: a recursive VOP_LOCK() (unionfs doesn't).
: - require that all file systems supply vfs_vptofh and vfs_fhtovp routines.
: fill in eopnotsupp() for file systems that don't support being exported
: and remove the checks for NULL. (layerfs calls these without checking.)
: - in union_lookup1(), don't change refcounts in the ISDOTDOT case, just
: adjust which vnode is locked. fixes PR 33374.
: - apply fixes for ufs_rename() from ufs_vnops.c rev. 1.61 to ext2fs_rename().
A minute after booting I started X, and had six or eight processes stuck
in vnlock (several terms and inetd). And I hadn't even got up to the
point where I (manually) union mount :-(
Haven't retried yet - will do so tomorrow (twelve hours or so).
Any pointers on debugging this?
i386/pentiumD (thus ``multi''-cpu)