Date: Mon, 21 Nov 2005 21:23:10 -0600 (CST) From: Greg Rivers <gcr+freebsd-stable@tharned.org> To: Kris Kennaway <kris@obsecurity.org> Cc: freebsd-stable@freebsd.org Subject: Re: Recurring problem: processes block accessing UFS file system Message-ID: <20051121205535.W32523@nc8000.tharned.org> In-Reply-To: <20051122021224.GA12402@xor.obsecurity.org> References: <20051121164139.T48994@w10.sac.fedex.com> <20051122021224.GA12402@xor.obsecurity.org>
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On Mon, 21 Nov 2005, Kris Kennaway wrote: > Looks like a UFS snapshot deadlock. Are you running something like dump > -L on this filesystem, or making other use of snapshots? > Indeed I am (dump -L), but as I said (not very clearly, sorry), the deadlock also occurs under normal operation when no snapshots are running or have ever been run since boot. It's just much less frequent in this case. Disabling dumps altogether was one of the first things I tried. > fsck -B also uses them, but shouldn't be running except at boot time. > Right, it isn't even at boot since I have background_fsck disabled. > You should take this up with Kirk McKusick <freebsd@McKusick.COM> - in > the meantime you can work around it by not making use of UFS snapshots. > Sounds good. Even though the problem may not be snapshot related, it certainly seems to be UFS related. Thanks for your suggestions and your prompt reply. -- Greg
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