Date: Thu, 9 Mar 2006 17:50:10 GMT From: Kris Kennaway <kris@obsecurity.org> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/94261: [ufs2] deadlock between ffs_mksnap and mysnc Message-ID: <200603091750.k29HoAIl043324@freefall.freebsd.org>
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The following reply was made to PR kern/94261; it has been noted by GNATS. From: Kris Kennaway <kris@obsecurity.org> To: Kris Kennaway <kris@obsecurity.org> Cc: Steve Watt <steve@Watt.COM>, FreeBSD-gnats-submit@FreeBSD.org Subject: Re: kern/94261: [ufs2] deadlock between ffs_mksnap and mysnc Date: Thu, 9 Mar 2006 12:48:41 -0500 --cWoXeonUoKmBZSoM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Mar 09, 2006 at 12:40:44PM -0500, Kris Kennaway wrote: > On Wed, Mar 08, 2006 at 11:15:43PM -0800, Steve Watt wrote: >=20 > > >Environment: > > System: FreeBSD wattres.Watt.COM 5.5-PRERELEASE FreeBSD 5.5-PRERELEASE = #11: Wed Mar 1 10:54:09 PST 2006 root@wattres.Watt.COM:/usr/obj/usr/src/sys= /WATTRES i386 > >=20 > >=20 > > =09 > > >Description: > >=20 > > Per a thread on -hackers back in May '05 titled "snapshots and innds", > > I'm finally getting around (sorry) to filing the PR. > >=20 > > I got a kernel core dump that I can do useful stuff with. The system > > was mostly operating normally, except that any attempt to access the > > /news partition (which has articles, tradspool.map, overviews, and > > incoming/outgoing data) would get stuck in "suspfs". > >=20 > > So I forced a dump from ddb. The mount point does (as one would > > expect) have MNTK_SUSPEND set. > >=20 > > I see mksnap_ffs sitting waiting for "ufs" (really vnode 0xc19af318), > > which it got to via: >=20 > This is probably fixed with Tor's latest commits to 6.1. I don't know > if he intends to merge the changes to 5.5, but that branch is > basically dead and you should upgrade to 6.x. Can you confirm it is > fixed in 6.1? Note: this was after -beta3, so you'll either have to cvsup and build the kernel yourself or wait for the next beta. Kris --cWoXeonUoKmBZSoM Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.1 (FreeBSD) iD8DBQFEEGp5Wry0BWjoQKURAkfOAJ43YoSWeo9TssdqGwAjgXwPetq7eQCfV4Gr wmSaXefyQVv7hnePxJyS2+Q= =1WWQ -----END PGP SIGNATURE----- --cWoXeonUoKmBZSoM--
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