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From: "John David Anglin" <>
To: (Carlos O'Donell)
Subject: [parisc-linux] Re: Expect defunct, kill -9 panics kernel?
Date: Sat, 10 Feb 2007 13:10:45 -0500 (EST)	[thread overview]
Message-ID: <200702101810.l1AIAkeJ012821__4962.05831082097$1416624280$gmane$> (raw)
In-Reply-To: <> from "Carlos O'Donell" at Feb 10, 2007 12:16:45 pm

> Is this the usual behaviour you see?
> 1. I run the gcc testsuite.
> 2. expect dies, leaving a defunct process.
> 3. Killing another expect panics the kernel.

It similar to the behavior that I see.  I don't usually see this
with expect though.  Possibly, this is because I use my own build
of expect linked tcl8.3.

I see this behavior quite consistently on my c3750 if I

1.  Run the gcc libjava testsuite.
2.  Usually, there a set of processes (e.g., Process_3) left running
    after the testsuite ends.  These processes are not defunct and
    load the processor.  I can kill all but the oldest thread.
3.  Killing the oldest thread panics the kernel.  Sometimes the system
    reboots.  However, the system often hangs doing endless panics.

I suspect a timing issue as the c3750 is the fastest processor that
I test on.  I don't see as many problems with the libjava testsuite
on slower hardware.  At one time, I thought this might be a 32 versus
64-bit issue, but I see the same problems running a 64-bit kernel.

J. David Anglin                        
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
parisc-linux mailing list

       reply	other threads:[~2007-02-10 18:10 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <>
2007-02-10 18:10 ` John David Anglin [this message]
2007-02-10 18:35 ` [parisc-linux] Expect defunct, kill -9 panics kernel? James Bottomley

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