[Bug 380219] [NEW] Regression: Samba Read/Write Causes System Freeze

[David Bridson]

Public bug reported:

Binary package hint: smbfs

Either reading or writing to a samba share mounted with cifs or smbfs on
Karmic causes the system to freeze.

I have had significant issues reading & writing mounted samba shares for
a week or so, and have now produced a minimal test case which
demonstrates the issue:

Given a 0-byte text file and a Samba share mounted as /media/Media2 :

If I run the command...

    cp /media/Media2/temp.txt ~

...the process is killed immediately. If I run the command a second
time, the process hangs and cp takes up 100% of the CPU and cannot be
killed. If I run the command a third time, the system freezes, I can't
move the mouse pointer, can't switch Num Lock on or off and can't switch
to a virtual terminal.

The same behaviour also occurs when writing to a samba share. The same
samba share can be accessed fine from a Windows PC and from Xbox Media
Center running on an Xbox.

My system is an up-to-date Karmic x86_64 with smbfs 2:3.3.4-2ubuntu1
with the samba share mounted automatically using the following line in
/etc/fstab:

//192.168.0.1/Media2 /media/Media2 cifs
username=xxxxxxx,password=xxxxxxx,iocharset=utf8 0 0

This configuration worked fine with the released Jaunty and earlier
versions of Karmic.

** Affects: samba (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: regression

-- 
Regression: Samba Read/Write Causes System Freeze
https://bugs.launchpad.net/bugs/380219
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