On Wed, Aug 3, 2011 at 7:53 PM, Jim Rees <rees@xxxxxxxxx> wrote:
> Peng Tao wrote:
>
> On Wed, Aug 3, 2011 at 10:38 AM, Jim Rees <rees@xxxxxxxxx> wrote:
> > Myklebust, Trond wrote:
> >
> > Can you try to turn on the callback debugging ('echo 256 >
> > /proc/sys/sunrpc/nfs_debug')? A wireshark trace of what is going on
> > during the hang itself might also help.
> >
> > It doesn't fail with callback debugging turned on. I suspect the output to
> > my slow serial console disrupts the timing.
> >
> > The trace is in
> > http://www.citi.umich.edu/projects/nfsv4/pnfs/block/download/089.pcap
> In frame 8785, client returned NFS4ERR_DELAY in response to
> CB_SEQUENCE and the next RPC was 12s later. So it should be the case
> that Trond mentioned above.
>
> That trace was taken with Trond's two patches applied. So they did not fix
> the problem for me.
>
How do you reproduce it? I was reproducing it by running ./check -nfs
and let it run to case 089 and kill it after case 089 run for seconds.
--
Thanks,
-Bergwolf
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