From: "Darrick J. Wong" <djwong@us.ibm.com>
To: "Siddha, Suresh B" <suresh.b.siddha@intel.com>
Cc: linux-kernel@vger.kernel.org, ebiederm@xmission.com
Subject: Re: Device hang when offlining a CPU due to IRQ misrouting
Date: Mon, 18 Jun 2007 17:51:36 -0700 [thread overview]
Message-ID: <20070619005136.GF9751@tree.beaverton.ibm.com> (raw)
In-Reply-To: <20070618235434.GB7160@linux-os.sc.intel.com>
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On Mon, Jun 18, 2007 at 04:54:34PM -0700, Siddha, Suresh B wrote:
> > <call to set_affinity>
> > [ 256.298787] irq=4341 affinity=d
> > <ethernet on irq 4341 stops working>
>
> And just to make sure, at this point, your MSI irq 4341 affinity
> (/proc/irq/4341/smp_affinity) still points to '2'?
Actually, it's 0xD. From the kernel's perspective the mask has been
updated (and I even stuck a printk into set_msi_irq_affinity to verify
that the writes are happening) but ... the hardware doesn't seem to
reflect this. I also tried putting read_msi_msg right afterwards to
compare contents, though it complained about all the MSIs _except_ for
4341. (Of course, I could just be way off on the effectiveness of
that.)
--D
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next prev parent reply other threads:[~2007-06-19 0:50 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-01 0:44 Device hang when offlining a CPU due to IRQ misrouting Darrick J. Wong
2007-06-01 19:39 ` Eric W. Biederman
2007-06-05 17:23 ` Siddha, Suresh B
2007-06-05 17:36 ` Darrick J. Wong
2007-06-05 18:13 ` Siddha, Suresh B
2007-06-05 18:33 ` Darrick J. Wong
2007-06-05 18:40 ` Siddha, Suresh B
2007-06-05 20:09 ` Darrick J. Wong
2007-06-05 21:14 ` Siddha, Suresh B
2007-06-05 23:57 ` Darrick J. Wong
2007-06-06 1:37 ` Siddha, Suresh B
2007-06-06 18:58 ` Darrick J. Wong
2007-06-06 19:35 ` Siddha, Suresh B
2007-06-06 23:16 ` Darrick J. Wong
2007-06-08 0:57 ` Siddha, Suresh B
2007-06-18 22:38 ` Darrick J. Wong
2007-06-18 23:54 ` Siddha, Suresh B
2007-06-19 0:51 ` Darrick J. Wong [this message]
2007-06-19 17:54 ` Eric W. Biederman
2007-06-19 18:00 ` Siddha, Suresh B
2007-06-19 18:55 ` Eric W. Biederman
2007-06-19 19:06 ` Darrick J. Wong
2007-06-19 19:59 ` Siddha, Suresh B
2007-06-19 20:49 ` Darrick J. Wong
2007-06-19 22:08 ` Siddha, Suresh B
2007-06-23 23:54 ` Rafael J. Wysocki
2007-06-23 23:58 ` Andrew Morton
2007-06-24 0:45 ` Eric W. Biederman
2007-06-24 0:51 ` Siddha, Suresh B
2007-06-24 12:50 ` Rafael J. Wysocki
2007-06-24 0:28 ` Siddha, Suresh B
2007-06-24 12:48 ` Rafael J. Wysocki
-- strict thread matches above, loose matches on Subject: below --
2007-06-01 21:57 Emmanuel Fusté
2007-06-02 0:18 ` Eric W. Biederman
2007-06-02 2:19 ` Darrick J. Wong
2007-06-02 3:48 ` Eric W. Biederman
2007-06-03 21:03 Emmanuel Fusté
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