Bug 4753 - copying some binary files on a mount smb gives an input/output error
copying some binary files on a mount smb gives an input/output error
Product: CifsVFS
Classification: Unclassified
Component: kernel fs
x86 Linux
: P3 regression
: ---
Assigned To: Steve French
Depends on:
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Reported: 2007-06-29 02:17 UTC by abeneuneu
Modified: 2009-05-13 16:04 UTC (History)
1 user (show)

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Description abeneuneu 2007-06-29 02:17:31 UTC
We use a linux server (server A) to copy a lot of files (more than 20000 per day) on another linux server (server B) by a samba mount.
We migrated the old server A, wich was running a redhat 7.2 and now it's a redhat entreprise 4. The server B is running a debian sarge. 
We copy these files since 5 years by the same way, we never got an error. Since we are in rh4 with the samba client 3.0.10, generally there are no problems, except on some files: on some files, the copy blocks, and we got an input/output error. We can reproduce the problem with the files we got. 
We have the problem with the mounts on w2k server. I changed the mount type smbfs -> cifs, but the problem's still there.
I added an nfs mount to unblock the process, and the copy works without any problems.
We have the same problem to connect on w2k workstations.
Comment 1 Shirish S. Pargaonkar 2009-03-06 04:02:50 UTC
Is this still a problem?  Is there a testcase to reproduce this problem?
You can turn on cifs debugging
 echo 7 > /proc/fs/cifs/cifsFYI
and send that log as soon as you see a problem.
Comment 2 Steve French 2009-05-13 16:04:32 UTC
almost certainly resolved now, and no response in a long time.

We made various fixes to the send path which help large file copies