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Date: Mon, 3 Nov 2003 12:04:13 -0200
From: "Giovanni P. Tirloni" <gpt@tirloni.org>
To: "Branko F. Gra?nar" <bfg@noviforum.si>
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cc: freebsd-hackers@freebsd.org
Subject: Re: FreeBSD 5.1-p10 reproducible crash with Apache2
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* "Branko F. Gra?nar" (bfg@noviforum.si) wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hi.
> 
> Today i added the following lines in my kernel config and i recompiled
> kernel:
> 
> makeoptions    DEBUG=-g
> options        DDB
> options        INVARIANTS
> options        INVARIANT_SUPPORT
> options        WITNESS
> 
> 
> I reran apache2 ssl test with jmeter. Machine stopped responding after
> 3-4 seconds (keyboard and console are unresponsible, machine doesn't
> respond to ping, sshd stops responding...)

 [ I couldn't find this thread on the archives so I'm jumping in blind. ]

 Perhaps you're being livelocked by so many interrupts hitting the
 system that it doesn't do anything productive and only stays there
 handling interrupts.

 Can you try polling (http://info.iet.unipi.it/~luigi/polling/) ?

 --
 Giovanni P. Tirloni <gpt at tirloni.org>
 Fingerprint: 8C3F BEC5 79BD 3E9B EDB8  72F4 16E8 BA5E D031 5C26