Date: Wed, 4 Oct 2006 12:39:44 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Kostik Belousov <kostikbel@gmail.com> Cc: Vivek Khera <vivek@khera.org>, stable@freebsd.org Subject: Re: ffs snapshot lockup Message-ID: <20061004163944.GA35412@xor.obsecurity.org> In-Reply-To: <20061004140808.GD89654@deviant.kiev.zoral.com.ua> References: <917B087C-5E13-4D7F-94FA-95CB0E5C1884@khera.org> <20060922190328.GA64849@xor.obsecurity.org> <555B84D2-520F-44D6-84D6-CF9CE7EE47C7@khera.org> <20060922203654.GA65693@xor.obsecurity.org> <847DD3A5-D5DD-4D3E-B755-64B13D1DA506@khera.org> <20061003084315.GA89654@deviant.kiev.zoral.com.ua> <DFEA4E5F-2337-4383-8765-F5901BDA49E9@khera.org> <20061004140808.GD89654@deviant.kiev.zoral.com.ua>
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--BXVAT5kNtrzKuDFl Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Oct 04, 2006 at 05:08:08PM +0300, Kostik Belousov wrote: > On Wed, Oct 04, 2006 at 09:56:54AM -0400, Vivek Khera wrote: > >=20 > > On Oct 3, 2006, at 4:43 AM, Kostik Belousov wrote: > >=20 > > >>Details are posted at http://vivek.khera.org/scratch/crashlogs/ > > >> > > >>I have the crashdumps available to a kernel hacker upon request (i'd > > >>rather not make them generally available to the public...) > > >> > > >It seems that you have snapshotted fs exported by nfsd ? At least, =20 > > >18a is > > >definitely the case. I have the patch (for current) that shall fix =20 > > >the issue. > > >In fact, you need two patches: > > > > >=20 > > So last night I patched my 6.2-PRE and installed the kernel and =20 > > rebooted. At 03:09 I got paged that the server was not responding. It = =20 > > had dropped into the kernel debugger on the console again. Typescript = =20 > > 19 (posted at the above URL) is the output of the debugging commands = =20 > > for it. These patches did not solve my problem (or maybe I have =20 > > multiple problems and they only solved one.) > >=20 > > The only thing I think was running at the time would be a large file = =20 > > copy from a remote system to this one using rsync. >=20 > As I understand, you got the panic. Then, you shall post the panic messag= e. > If you have core file, then running kgdb on the core may show required > information. > (it shall be on the console exactly before en > and backtrace (using the bt command of ddb) of the paniced thread. YOu can also do 'show msgbuf' from DDB. Kris --BXVAT5kNtrzKuDFl Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFFI+PQWry0BWjoQKURAuB+AJ9VG5nhFLMLT2XVwhpaZofa2X3d+QCgxVoF ZpytF7NkmZoNRYbxX0sn/Vs= =9zDw -----END PGP SIGNATURE----- --BXVAT5kNtrzKuDFl--
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