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Subject: Re: [PATCH] Work around for periodic do_gettimeofday hang
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: James Bottomley <James.Bottomley@SteelEye.com>
Cc: Andrew Morton <akpm@osdl.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Date: Thu, 25 Nov 2004 15:47:16 +0000
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On Mer, 2004-11-24 at 16:49, James Bottomley wrote:
> On the voyager systems particularly (but also on some of my slower
> parisc boxes) I periodically get hangs where the system just seems to
> stop (although it does remain able to execute alt-sysrq).  The traces
> always seem to implicate do_gettimeofday in the xtime seqlock.

What are the other CPUs doing in this case ?