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

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Date:	Thu, 18 Aug 2011 06:35:26 -0400 (EDT)
From:	Justin Piszcz <jpiszcz@...idpixels.com>
To:	"J. R. Okajima" <hooanon05@...oo.co.jp>
cc:	Jeff Layton <jlayton@...ba.org>, Jesper Juhl <jj@...osbits.net>,
	linux-kernel@...r.kernel.org, Alan Piszcz <ap@...arrain.com>,
	Steve French <sfrench@...ba.org>, linux-cifs@...r.kernel.org
Subject: Re: Kernel 3.0: Instant kernel crash when mounting CIFS (also crashes
 with linux-3.1-rc2



On Thu, 18 Aug 2011, J. R. Okajima wrote:

>
> Justin Piszcz:
>> Does anyone know if any kernel supports CIFS w/out crashing? I'd like to
>> backup some CIFS shares, thanks.
>>
>>
>> mount -t cifs //w2/x /mnt -o user=user,pass=pass
>>
>> [  881.388836] CIFS VFS: cifs_mount failed w/return code = -22
> 	:::
>
> Since it failed mounting, this patch will help you. Although the patch
> will fix one bug, there still may exist another problem.
>
> http://marc.info/?l=linux-cifs&m=131345112022031&w=2

Hi,

Latest patch (this one) applied to linux-3.1-rc2 works, at least it mounted
this time and did not instantly crash the kernel!

I also tried the hostname again (and it did not crash the kernel, but it 
failed to mount).

Used the IP and it mounted successfully:
//10.0.0.11/x          28T  5.0T   23T  19% /mnt
//10.0.0.11/y          19T  1.2T   18T   7% /mnt2

It has not crashed yet (which is good), I'll apply this patch to my
production machine and test taking backups of this data and let you know
if it crashes again, thanks!

Justin.
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