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List: netbsd-current-users
Subject: Re: "parked" processes?
From: Alan Barrett <apb () cequrux ! com>
Date: 2007-06-26 6:40:12
Message-ID: 20070626064012.GF990 () apb-laptoy ! apb ! alt ! za
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On Mon, 25 Jun 2007, Steven M. Bellovin wrote:
> I just upgraded my laptop to -current from 18 June. Since then, I've
> had several instances of (X11) applications hanging. Two of them, at
> least, have been blocked on wchan "parked". Has anyone else seen
> this?
I have often had firefox hang like that. This was firefox-2.0.0.4
from pkgsrc, running on an i386 laptop with NetBSD-4.99.20, compiled
on the same laptop with a somewhat older version of -current (probably
4.99.16). According to "ps -s", almost all lwps were "parked", but one
was waiting for something else (a socket, I think). Locking the screen
(via xlockmore) and/or suspending the laptop seemed to have something to
do with triggering the bad state, but I didn't do any scientific tests
to verify that hypothesis.
I recompiled firefox and almost all its dependencies on the same version
of -current that I am running, and haven't seen the problem again.
This makes me suspect a binary compatibility issue between 4.99.16 and
4.99.20.
--apb (Alan Barrett)
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