Date: Tue, 2 Nov 2004 10:41:45 +0100 From: Arjan de Vet <devet@devet.org> To: current@freebsd.org Cc: re@freebsd.org Subject: 5.3-RC2: kqueue descriptor leak in resolver functions? Message-ID: <20041102094145.GA4698@adv.devet.org>
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I'm trying to track down a weird hang/panic in 5.3-RC* which seems to
happen after 1-1.5 days on my desktop machine. The one time I saw the
panic message it complained about kmem_map being full.
This morning I noticed that the kernel memory used for kqueues was a bit
larger than expected so I started to monitor it more closely.
I soon found out what seems to be the problem: mozilla keeps lots of
kqueue file descriptors open:
> lsof | fgrep mozilla | fgrep KQUEUE | wc -l
1137
This number grows over time (I have mozilla running permanently with
lots of tabs, most of which auto-refresh). Does anybody see something
similar with mozilla on 5.3-RC*?
A ktrace of the mozilla process seems to point to the DNS resolver code
leaking kqueue descriptors (I could not find any kqueue() calls in the
mozilla code itself).
Arjan
Cc: re
--
Arjan de Vet, Eindhoven, The Netherlands <devet@devet.org>
URL : http://www.devet.org/ <Arjan.deVet@adv.iae.nl>
Work: http://www.madison-gurkha.com/ (Security, Open Source, Education)
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