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Date:      Mon, 05 Mar 2001 07:48:43 -0800 (PST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Dag-Erling Smorgrav <des@ofug.org>
Cc:        cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/i386/isa apic_vector.s icu_vector.s
Message-ID:  <XFMail.010305074843.jhb@FreeBSD.org>
In-Reply-To: <xzp8zmkwg6s.fsf@flood.ping.uio.no>

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On 05-Mar-01 Dag-Erling Smorgrav wrote:
> John Baldwin <jhb@FreeBSD.org> writes:
>> This fixed some hard hangs that David was seeing on his machine under heavy
>> load.
> 
> I've been seeing solid hangs too with recent kernels (always under
> heavy I/O load). They seemed to go away when I regressed to a
> 2001-02-23 kernel. Haven't tried this patch yet.

Heavy load could generate enough interrupts to overflow the stack and trash the
pcb, so this very well might fix that.

-- 

John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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