Re: [patch, -rc5-mm1] lock validator, fix NULL type->name bug

Ingo Molnar
2006-05-30T12:01:51Z

* Mike Galbraith <efault@gmx.de> wrote:

> On Tue, 2006-05-30 at 13:11 +0200, Ingo Molnar wrote:
> > Subject: lock validator, fix NULL type->name bug
> > From: Ingo Molnar <mingo@elte.hu>
> >
> > this should fix the bug reported Mike Galbraith: pass in a non-NULL
> > mutex name string even if DEBUG_MUTEXES is turned off.
>
> Well, yes and no. It cures the oops, and it almost boots. It passes
> all tests, and gets to where we start mounting things...
>
> kjournald starting. Commit interval 5 seconds
> EXT3 FS on hdc1, internal journal
> EXT3-fs: mounted filesystem with ordered data mode.
>
> =====================================================
> [ BUG: possible circular locking deadlock detected! ]
> -----------------------------------------------------
> mount/2545 is trying to acquire lock:
> (&ni->mrec_lock){--..}, at: [<b13d1563>] mutex_lock+0x8/0xa
>
> ...and deadlocks.

hm, and no other messages? Are you using serial logging?

Ingo