From: Jesse Barnes <jesse.barnes@intel.com>
To: Roland Dreier <rdreier@cisco.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>,
Matthew Wilcox <matthew@wil.cx>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"general@lists.openfabrics.org" <general@lists.openfabrics.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: mthca double free irqs
Date: Fri, 12 Jun 2009 08:50:53 -0700 [thread overview]
Message-ID: <20090612085053.0fbe9731@jbarnes-g45> (raw)
In-Reply-To: <adafxe51pz9.fsf@cisco.com>
On Fri, 12 Jun 2009 07:33:30 -0700
Roland Dreier <rdreier@cisco.com> wrote:
> By the way, can you try this with the ib_mthca module option
> "msi_x=0" -- because I see
>
> > [ 606.538429] ib_mthca 0000:c4:00.0: NOP command failed to
> > generate interrupt (IRQ 234).
> > [ 606.543348] ib_mthca 0000:c4:00.0: Trying again with MSI-X
> > disabled.
>
> But perhaps the fallback to non-MSI-X in the driver is messing things
> up. Also you have:
My linux-next branch has a change to the return value from the MSI-X
allocation function: pci_enable_msix now returns the number of
available entries rather than -EINVAL if the allocation failed. Would
that cause problems in the mthca driver?
--
Jesse Barnes, Intel Open Source Technology Center
next prev parent reply other threads:[~2009-06-12 15:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-12 2:45 Yinghai Lu
2009-06-12 14:31 ` Roland Dreier
2009-06-12 17:22 ` Yinghai Lu
2009-06-12 14:33 ` Roland Dreier
2009-06-12 15:50 ` Jesse Barnes [this message]
2009-06-12 16:25 ` Roland Dreier
2009-06-12 16:26 ` Roland Dreier
2009-06-13 4:30 ` Roland Dreier
2009-06-13 19:28 ` Yinghai Lu
2009-06-13 22:04 ` Roland Dreier
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