On Tue, Aug 21, 2007 at 12:57:40AM -0400, Kris Kennaway wrote: > On Mon, Aug 20, 2007 at 11:52:01PM +0300, Kostik Belousov wrote: > > > Quite often, the "impossible" panics with vnode locking are happens > > because some other thread already paniced the kernel. Then, lockmgr > > passes all lock requests without actually locking. I would suggest > > looking around to make sure this is not the case there. > > Is there a good reason to be doing that? Hmm. This is revision 1.47 of sys/kern/kern_lock.c: date: 2001/08/10 23:29:15; author: jhb; state: Exp; lines: +6 -1 If we've panic'd already, then just bail in lockmgr rather than blocking or possibly panic'ing again.
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