Re: SMP FFS Part 3

From: Jeff Roberson <jroberson_at_chesapeake.net>
Date: Fri, 3 Dec 2004 16:16:51 -0500 (EST)
On Fri, 3 Dec 2004, Peter Holm wrote:

> On Fri, Dec 03, 2004 at 05:33:01AM -0500, Jeff Roberson wrote:
> > This patch removes Giant from every file related syscall.  It fixes all
> > known bugs except for one which Peter Holm has seen after very long
> > periods of extreme load, and a nfs netbooting problem that I haven't yet
> > looked in to.  I can buildworld -j3 for hours on my dual opteron without
> > issues.  I hope to fix the remaining problems in a day or two.
> >
> > http://www.chesapeake.net/~jroberson/smpffs.diff
> >
> Here's the double panic again:
> panpanic: bremfree: buffer not on a queue.
> panic: wrong b_bufobj 0 should be 0xc1dda034
>
> http://www.holm.cc/stress/log/jeff08.html

Well, I'm glad that there is nothing new.  I'm going to add some tracing
so we can track this down.  I haven't yet reproduced it, so hopefully you
can get some ktr data out of it.  I'll let you know when I have some
debugging tools.

>
> > Cheers,
> > Jeff
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>
> --
> Peter Holm
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Received on Fri Dec 03 2004 - 20:16:54 UTC

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