linux-kernel - Re: cifs: ls of mount point gives input/output error (probably related to CIFS: getdents() broken for large dirs)

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Message-ID: <4EFD7EBB.2060708@gmail.com>
Date:	Fri, 30 Dec 2011 11:04:59 +0200
From:	Konstantinos Skarlatos <k.skarlatos@...il.com>
To:	Jeff Layton <jlayton@...hat.com>
CC:	linux-kernel@...r.kernel.org, linux-cifs@...r.kernel.org
Subject: Re: cifs: ls of mount point gives input/output error (probably related
 to CIFS: getdents() broken for large dirs)

On 29/12/2011 3:54 μμ, Konstantinos Skarlatos wrote:
> On Πέμπτη, 29 Δεκέμβριος 2011 3:39:30 μμ, Jeff Layton wrote:
>> On Thu, 29 Dec 2011 12:30:18 +0200
>> Konstantinos Skarlatos<k.skarlatos@...il.com>  wrote:
>>
>>> On 29/12/2011 4:04 πμ, Jeff Layton wrote:
>>>> On Thu, 29 Dec 2011 02:08:57 +0200
>>>> Konstantinos Skarlatos<k.skarlatos@...il.com>   wrote:
>>>>
>>>>> I mount via cifs a windows XP share, df gives me correct sizes, 
>>>>> but when
>>>>> I ls the mount point i get input/output error.
>>>>> strace: http://pastebin.com/WXf8M1nu
>>>>>
>>>>> mount --verbose -t cifs -o username=administrator,password=blahblah
>>>>> //192.168.0.11/jobs /mnt/backups/montaz/jobs
>>>>> mount.cifs kernel mount options:
>>>>> ip=192.168.0.11,unc=\\192.168.0.11\jobs,,ver=1,user=administrator,pass=******** 
>>>>>
>>>>>
>>>>> df
>>>>> //192.168.0.11/jobs                                       114464
>>>>> 105196      9268  92% /mnt/backups/montaz/jobs
>>>>>
>>>>> ls /mnt/backups/montaz/jobs/
>>>>> ls: reading directory /mnt/backups/montaz/jobs/: Input/output error
>>>>> total 0
>>>>>
>>>>> the fun thing is that i can cd to a lower level directory, and ls 
>>>>> works
>>>>> fine there! only the mount point has the problem
>>>>>
>>>>> ls /mnt/backups/montaz/jobs/test
>>>>> total 44K
>>>>> drwxr-xr-x 1 root root    0 Apr 30  2010 blah blah/
>>>>> ......
>>>>>
>>>>> kernel version 3.2rc7
>>>>>
>>>>> this seems to be related to :
>>>>> https://lkml.org/lkml/2011/8/1/427
>>>>> Re: [3.0.0+][Regression][Bisected] CIFS: getdents() broken for 
>>>>> large dirs
>>>>>
>>>> Hmmm, maybe. What makes you think that it's related? What sort of
>>>> server are you seeing this against?
>>> Windows XP service pack 2 (greek)
>>
>>
>> How many files are in the directory?
>>
> 140 folders and 20 files
>
Attached is a tcp dump of my session.

Download attachment "cifs-traffic.zip" of type "application/octet-stream" (9900 bytes)