From: James Bottomley <James.Bottomley@HansenPartnership.com>
To: Helge Deller <deller@gmx.de>
Cc: Kyle McMartin <kyle@infradead.org>, linux-parisc@vger.kernel.org
Subject: Re: Fwd: [PATCH] fix mapping_writably_mapped()
Date: Thu, 11 Dec 2008 16:03:08 -0600 [thread overview]
Message-ID: <1229032988.3266.119.camel@localhost.localdomain> (raw)
In-Reply-To: <49418699.8070900@gmx.de>
On Thu, 2008-12-11 at 22:31 +0100, Helge Deller wrote:
> Kyle McMartin wrote:
> > This may explain some of the userspace issues we've been seeing.
>
> It sadly does not fix the kernel panic I reported in
> http://marc.info/?l=linux-parisc&m=122877889304862&w=2
> ("2.6.28: BUG: soft lockup - CPU#0 stuck for 61s!")
It's not really likely to ... what you have is too much work going on in
the locking functions. Either because of contention or debugging.
Can you reproduce it without spinlock debugging? If yes, then we may
have some nasty accidental contention in the flushing spinlocks.
James
next prev parent reply other threads:[~2008-12-11 22:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-10 21:46 Fwd: [PATCH] fix mapping_writably_mapped() Kyle McMartin
2008-12-10 21:47 ` Matthew Wilcox
2008-12-11 2:26 ` [RFC] Fix warnings from various parisc and hp specific files John David Anglin
2008-12-11 2:34 ` John David Anglin
2008-12-11 8:29 ` Fwd: [PATCH] fix mapping_writably_mapped() Grant Grundler
2008-12-11 12:52 ` John David Anglin
2008-12-11 21:31 ` Helge Deller
2008-12-11 22:03 ` James Bottomley [this message]
2008-12-13 16:36 ` John David Anglin
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