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

Jeff Layton
2011-12-29T02:02:27Z

On Thu, 29 Dec 2011 02:08:57 +0200
Konstantinos Skarlatos <k.skarlatos@gmail.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?

What would be most helpful is a capture and/or some cifsFYI info.
Instructions on how to capture that are here:

http://wiki.samba.org/index.php/LinuxCIFS_troubleshooting

Would you be able to provide those?

Thanks,
--
Jeff Layton <jlayton@redhat.com>