Mounts to Windows 7 and "out of memory" or "insufficient server resources"

Jeff Layton jlayton at
Wed Sep 28 13:56:48 MDT 2011

On Wed, 28 Sep 2011 13:28:38 -0500
Steve French <smfrench at> wrote:

> On Wed, Sep 28, 2011 at 4:30 AM, Shirish Pargaonkar
> <shirishpargaonkar at> wrote:
> > On Tue, Sep 27, 2011 at 4:36 PM, Steve French <smfrench at> wrote:
> >> FYI - The cifs async write in 3.0 seems to exacerbate problems running
> >> out of memory (apparently) on the Windows 7 system (running as a
> >> server) after a large file copy to the server completes.   I have been
> >> able to reproduce the same problem on Windows Vista Service Pack 2
> >> (which is a good news/bad news story since my earlier testing on
> >> Windows Vista showed hangs on some requests rather than returning out
> >> of memory).  Does not seem to be a problem with any of the Windows
> >> server versions just Windows 7 and Vista so far
> >
> > If this is a problem with Windows Vista and Windows 7, it is likely
> > to be a problem with Windows 2008 Server as well.
> > Basically Windows server starting Vista perhaps?
> I have not been able to reproduce it against Windows 2003
> or Windows 2008 server yet, but plan some experiments.
> If you have additional test data on this let me know.

Most likely, those servers report a MaxMpx >= 50. The only real
question I have is what maxmpx vista and 7 report. If it's <50 then
this is likely our bug, not theirs. It seems quite correct for the
server to return an error if the client exceeds that limit.

Jeff Layton <jlayton at>

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