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SubjectRe: [linux-cifs-client] 2.6.16-rc: CIFS reproducibly freezes the computer
On Tue, Feb 14, 2006 at 10:01:59AM -0600, Steven French wrote:
>
> >...
> > It doesn't occur in 2.6.15.4, because with this kernel (and AFAIR also
> > with older kernels) my computer refuses to mount this share.
> >...

Is this issue I mentioned in my bug report expected, or could it be
related to my problem?

>...
> Command 46 is an SMB Read. IIRC send error in read -11 is EAGAIN which
> could
> indicate that the socket is congested and stayed congested but normally
> that would be accompanied by a "sends on socket stuck for x seconds"
>
> Could you check /proc/fs/cifs/DebugData and see if the number of
> reconnections
> is non-zero (indicating that the tcp session to the server died).

I don't see this, do I need CONFIG_CIFS_STATS for seeing it?

> Any chance you could do an ethereal network trace of the failure (perhaps
> on the server, if the client is hanging) so we could see the
> last request (presumably a read) that the client sent (and whether the
> server responded).
>
> Also is it possible to build your kernel with some of the debugging options
> turned on (e.g. "Debug Memory allocations" and "mutex debugging, deadlock
> detection" and
> "detect soft lockups") to see if we are overwritting memory and hitting an
> obscure
> deadlock.

Both are now on my TODO list.

> It would also be helpful, if the problem turns out to be non-obvious, to
> track this via a new bug # in bugzilla.samba.org

OK.

> Steve French

cu
Adrian

--

"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed

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