panic: sbflush_locked
Alan Cox
alc at cs.rice.edu
Wed Dec 22 12:34:38 PST 2004
On Wed, Dec 22, 2004 at 08:55:31AM +0000, Robert Watson wrote:
>
> On Mon, 20 Dec 2004, Alan Cox wrote:
>
> > > I haven't seen this in a very long time, but I've definitely tried to
> > > track it down before with zero luck.
> >
> > With the attached change, I've had no more crashes.
> >
> > I speculate uipc_send() is missing needed synchronization on so_snd.
> > Robert, can you verify the patch?
>
> Sorry for the delay in responding to your original post; I'm still
> catching up with e-mail from my trip to Bangladesh. I actually had
> similar changes to this in the netperf branch at one point, but think I
> removed them due to concerns about lock order. However, this change is
> careful to acquire the send lock before the receive lock, so I think
> shouldn't present a problem from that perspective. Please go ahead and
> commit, perhaps with a 2 week MFC time?
I just committed the patch. Thanks for the review.
Alan
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