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SubjectRe: Kernel 3.0: Instant kernel crash when mounting CIFS (also crashes with linux-3.1-rc2


On Thu, 18 Aug 2011, Jeff Layton wrote:

> On Thu, 18 Aug 2011 09:15:36 -0400 (EDT)
> Justin Piszcz <jpiszcz@lucidpixels.com> wrote:
>
>>
>>
>> On Thu, 18 Aug 2011, Jeff Layton wrote:
>>
>>> On Thu, 18 Aug 2011 08:22:44 -0400 (EDT)
>>> Justin Piszcz <jpiszcz@lucidpixels.com> wrote:
>>>
>>>> Justin.
>>>>
>>>
>>> To be clear -- incoming in this case is reads or writes?
>> Reading from the CIFS share (Windows 7).
>>
>>>
>>> Up until 3.0 cifs.ko didn't parallelize writes from a single thread. In
>>> 3.0 I added a patchset to increase the allowable wsize and to allow the
>>> kernel to issue writes in parallel.
>> Ahh, good to know, have not tried writes yet.
>>
>>>
>>> Reads still suffer from the same problem however. I'm working on a
>>> patchset that should do the same thing for them, but it requires a
>>> fairly substantial overhaul of the receive codepaths.
>> Ok, that explains it then, thanks.


Hi,

Watching the rsync, it ran for a while, then:

rsync: send_files failed to open "/cifs/w1/r1/data/hs12/f4_0.JPG": Cannot allocate memory (12)
rsync: send_files failed to open "/cifs/w1/r1/data/hs12/f4_1.JPG": Cannot allocate memory (12)
rsync: send_files failed to open "/cifs/w1/r1/data/hs12/f4_2.JPG": Cannot allocate memory (12)
rsync: send_files failed to open "/cifs/w1/r1/data/hs12/f4_0.JPG": Cannot allocate memory (12)

Justin.



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