From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: Andrew Morton <akpm@osdl.org>
Cc: Lee Revell <rlrevell@joe-job.com>,
miles.lane@gmail.com, linux-kernel@vger.kernel.org,
linux1394-devel@lists.sourceforge.net,
Dave Jones <davej@redhat.com>
Subject: Re: 2.6.16-rc2-mm1 -- BUG: warning at drivers/ieee1394/ohci1394.c:235/get_phy_reg()
Date: Sat, 11 Feb 2006 09:50:14 +0100 [thread overview]
Message-ID: <43EDA546.7020103@s5r6.in-berlin.de> (raw)
In-Reply-To: <20060210203715.57b39b0d.akpm@osdl.org>
Andrew Morton wrote:
>>>That's a -mm-only warning telling you that get_phy_reg() is doing a
>>>one-millisecond-or-more busywait while local interrupts are disabled.
...
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.16-rc2/2.6.16-rc2-mm1/broken-out/debug-warn-if-we-sleep-in-an-irq-for-a-long-time.patch
So that's why when I heard of this issue the first time, it was about
Redhat/ Fedora Core kernels. But even though this issue is very old, no
bug report got through to linux1394-devel until December 2005.
BTW, why not swap the order of expressions:
WARN_ON(!(warned++) && in_irq()); \
--
Stefan Richter
-=====-=-==- --=- -=-==
http://arcgraph.de/sr/
next prev parent reply other threads:[~2006-02-11 8:50 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-10 20:07 Miles Lane
2006-02-10 20:21 ` Andrew Morton
2006-02-11 0:31 ` Stefan Richter
2006-02-11 2:30 ` Lee Revell
2006-02-11 8:39 ` Stefan Richter
2006-02-11 2:28 ` Lee Revell
2006-02-11 4:37 ` Andrew Morton
2006-02-11 8:50 ` Stefan Richter [this message]
2006-02-11 9:03 ` Andrew Morton
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