Date: Tue, 23 Aug 2005 13:22:59 -0500 From: Nikolas Britton <nikolas.britton@gmail.com> To: Eric Rescorla <ekr@rtfm.com> Cc: freebsd-questions@freebsd.org Subject: Re: Help diagnosing system hangs? Message-ID: <ef10de9a05082311225bf905a5@mail.gmail.com> In-Reply-To: <20050823073110.3702E284D7@sierra.rtfm.com> References: <20050823073110.3702E284D7@sierra.rtfm.com>
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On 8/23/05, Eric Rescorla <ekr@rtfm.com> wrote: > I've recently been experiencing frequent hangs with FreeBSD 5.3-RELEASE-p= 20. > Strangely, this didn't appear to happen with 5.3-RELEASE or before > a few months ago. >=20 > My platform is a P4-2.8 GHz (dmesg appended at end). >=20 > The behavior is that X freezes (sorry, I can't say if the clock is still > working because I forgot to check) and sshing into the box hangs. A > hard reboot clears things and the box starts normally, except that it > fscks as expected. Nothing appears in /var/log/messages, etc. >=20 > Because this problem started fairly recently, my one guess is that this > is somehow related to the hyperthreading fix in SA-05:09. This processor > allegedly has hyperthreading but I'm running GENERIC. Any possibility > this could be responsible for hanging somehow? Have you ruled out hardware problems, what makes you think it's FreeBSD? Is this problem random? etc.
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