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Message-ID: <3AD491C9.6424D932@zk3.dec.com>
Date: Wed, 11 Apr 2001 13:18:01 -0400
From: Peter Rival <frival@zk3.dec.com>
Organization: Tru64 QMG Performance Engineering
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To: Bob McElrath <mcelrath+linux@draal.physics.wisc.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Alpha "process table hang"
In-Reply-To: <20010411104040.A8773@draal.physics.wisc.edu> <3AD489D1.D5FCCB4B@zk3.dec.com> <20010411120044.A6472@draal.physics.wisc.edu>
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Hmpf.  Haven't seen this at all on any of the Alphas that I'm running.  What
exact system are you seeing this on, and what are you running when it happens?

 - Pete

Bob McElrath wrote:

> Peter Rival [frival@zk3.dec.com] wrote:
> > You wouldn't happen to have khttpd loaded as a module, would you?  I've seen
> > this type of problem caused by that before...
>
> Nope...
>
> >
> >  - Pete
> >
> > Bob McElrath wrote:
> >
> > > I've been experiencing a particular kind of hang for many versions
> > > (since 2.3.99 days, recently seen with 2.4.1, 2.4.2, and 2.4.2-ac4) on
> > > the alpha architecture.  The symptom is that any program that tries to
> > > access the process table will hang. (ps, w, top) The hang will go away
> > > by itself after ~10minutes - 1 hour or so.  When it hangs I run ps and
> > > see that it gets halfway through the process list and hangs.  The
> > > process that comes next in the list (after hang goes away) almost always
> > > has nonsensical memory numbers, like multi-gigabyte SIZE.
> > >
> > > Linux draal.physics.wisc.edu 2.3.99-pre5 #8 Sun Apr 23 16:21:48 CDT 2000
> > > alpha unknown
> > >
> > > Gnu C                  2.96
> > > Gnu make               3.78.1
> > > binutils               2.10.0.18
> > > util-linux             2.11a
> > > modutils               2.4.5
> > > e2fsprogs              1.18
> > > PPP                    2.3.11
> > > Linux C Library        2.2.1
> > > Dynamic linker (ldd)   2.2.1
> > > Procps                 2.0.7
> > > Net-tools              1.54
> > > Kbd                    0.94
> > > Sh-utils               2.0
> > > Modules Loaded         nfsd lockd sunrpc af_packet msdos fat pas2 sound
> > > soundcore
> > >
> > > Has anyone else seen this?  Is there a fix?
> > >
> > > -- Bob
> > >
> > > Bob McElrath (rsmcelrath@students.wisc.edu)
> > > Univ. of Wisconsin at Madison, Department of Physics
> > >
> > >   ------------------------------------------------------------------------
> > >    Part 1.2Type: application/pgp-signature
> -- Bob
>
> Bob McElrath (rsmcelrath@students.wisc.edu)
> Univ. of Wisconsin at Madison, Department of Physics
>
>   ------------------------------------------------------------------------
>    Part 1.2Type: application/pgp-signature

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