On 08/17/06 10:04, Kostik Belousov wrote:
On Thu, Aug 17, 2006 at 09:53:28AM -0500, Eric Anderson wrote:
On 08/17/06 07:30, Eric Anderson wrote:
On 08/17/06 07:25, Kostik Belousov wrote:
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 ?
6-STABLE from ~8/12/06.
So there's not much that can be done with the vmcore?
I'll add the options to my kernel config (I was missing a few), and I
suppose wait for another deadlock.
Ok, had another one. Here are screenshots:
http://www.googlebit.com/freebsd/snapshots/
Is it the sysctl that is triggering it?
Hmm, unbelievable. It would be much simpler for you to set up serial
console.
Not really, at least right now. I'm doing this remotely, so it'll be
some time before I can do that.
Anyway, you use g_journal, and the problem seems to be related to some
geom locking. pjd@ is the right person to contact. I added him to the Cc:.
Ahah. Ok. Thank you!
Eric
--
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Eric Anderson Sr. Systems Administrator Centaur Technology
Anything that works is better than anything that doesn't.
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