Date: Tue, 23 Dec 2003 14:28:25 +0100 (CET) From: Michal Mertl <mime@traveller.cz> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: Kris Kennaway <kris@obsecurity.org> Subject: Re: file descriptor leak in 5.2-RC Message-ID: <20031223140614.S5800@prg.traveller.cz> In-Reply-To: <20031221002102.G48443@prg.traveller.cz> References: <21370.1071952691@critter.freebsd.dk> <20031221002102.G48443@prg.traveller.cz>
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On Sun, 21 Dec 2003, Michal Mertl wrote: > On Sat, 20 Dec 2003, Poul-Henning Kamp wrote: > > In message <Pine.NEB.3.96L.1031220105954.46326Q-100000@fledge.watson.org>, Robe > > rt Watson writes: > > > > >[...] so if we actually have a leak, > > >fstat(8) should show a small number of files, but the sysctl > > >kern.openfiles should reveal a large number of files open. > > > > sysctl kern.malloc | grep "file desc" ? > > > > I'l try to reproduce the problem here at home and send the info. > Otherwise it will have to wait till monday when I'm at work. Sorry for the late answer - I was unable to reproduce the problem at home and even at work it takes some time before it's obviously visible. Now, after ~25hours, I see it again. Fstat and lsof in single-user really only show small number of files (these of fstat, sh and init) yet kern.openfiles was 729. Output of "sysctl kern.malloc | grep 'file desc'" is "file desc 47 12K 29K 6801 256". I've got all sysctl -a saved if anything from it might give another clue. I forced panic from the DDB so I've got coredump if needed. I think it's mozilla (and libkse) what's causing this. It seems to happen after many pages are loaded (I leave the computer running when I leave on https page which reloads every minute). At home I tried with self refreshing local page without SSL and the problem didn't occur. -- Michal Mertl
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