samba - Sep 2004 - process hang when accessing a mounted smbfs

Hi all,

I installed the samba 3.0.3 on a Fedora Core 2 and then samba 3.0.6-1 
and still have the following problem.

When I mount a smbfs, it sucesses but processes hang when they access 
the mount point and smbumount returns "Device busy". Since even system
halt fails unmounting the filesystem, I have to switch off the machine.

I tested either with smbmount command, or /etc/fstab entry and mount 
command, as root or common user, with a Linux or Windows server, but the 
problem still occurs.

Note that is happens only with the first smbfs mount of the system. 
Applications that access another smbfs mount point mounted after the 
first one work very well.

Thanks for any help or advice,
Gr?goire.

Here are some traces from the /var/log/messages file, logged when I 
perform the mount of a smbfs. The error is transparent to the user, 
that's why I thought mount was successful, but actually this explain why 
following accesses to the mount point fail and why smbumount fails.

Again, any comment would be very helpful,
thanks,
Gr?goire.

from /var/log/messages:
Sep  6 09:29:06 cb000731 kernel: smb_lookup: find //.Trash-pichong 
failed, error=-5
Sep  6 09:29:06 cb000731 kernel: Unable to handle kernel NULL pointer 
dereference at virtual address 00000000
Sep  6 09:29:06 cb000731 kernel:  printing eip:
Sep  6 09:29:06 cb000731 kernel: 00000000
Sep  6 09:29:06 cb000731 kernel: *pde = 00000000
Sep  6 09:29:06 cb000731 kernel: Oops: 0000 [#1]
Sep  6 09:29:06 cb000731 kernel: CPU:    0
Sep  6 09:29:06 cb000731 kernel: EIP:    0060:[<00000000>]    Not tainted
Sep  6 09:29:06 cb000731 kernel: EFLAGS: 00210246   (2.6.5-1.358)
Sep  6 09:29:06 cb000731 kernel: EIP is at 0x0
Sep  6 09:29:06 cb000731 kernel: eax: 0b0eda80   ebx: 1227e290   ecx: 
0214edcd   edx: 165a9fa0
Sep  6 09:29:06 cb000731 kernel: esi: 303a783a   edi: 03127d80   ebp: 
0b0eda80   esp: 165a9f14
Sep  6 09:29:06 cb000731 kernel: ds: 007b   es: 007b   ss: 0068
Sep  6 09:29:06 cb000731 kernel: Process nautilus (pid: 2717, 
threadinfo=165a9000 task=20300cb0)
Sep  6 09:29:06 cb000731 kernel: Stack: 2256f976 165a9f38 00000000 
0b3ec000 12269254 0abf1e18 1c068080 0214edcd
Sep  6 09:29:06 cb000731 kernel:        165a9fa0 746f6f72 00136131 
723a303a 00000000 00000000 0b3ec000 00000002
Sep  6 09:29:06 cb000731 kernel:        00000000 00000000 00000001 
00000004 00200246 22577020 0abf1e80 0b0eda80
Sep  6 09:29:06 cb000731 kernel: Call Trace:
Sep  6 09:29:06 cb000731 kernel:  [<2256f976>] smb_readdir+0x346/0x3f1 
[smbfs]
Sep  6 09:29:06 cb000731 kernel:  [<0214edcd>] filldir64+0x0/0x12e
Sep  6 09:29:06 cb000731 kernel:  [<0214eaba>] vfs_readdir+0x7a/0x9b
Sep  6 09:29:06 cb000731 kernel:  [<0214edcd>] filldir64+0x0/0x12e
Sep  6 09:29:06 cb000731 kernel:  [<0214ef60>] sys_getdents64+0x65/0xaa
Sep  6 09:29:06 cb000731 kernel:  [<0214e26c>]
generic_file_fcntl+0xd7/0x140
Sep  6 09:29:06 cb000731 kernel:
Sep  6 09:29:06 cb000731 kernel: Code:  Bad EIP value.


Gregoire Pichon wrote:
> Hi all,
>
> I installed the samba 3.0.3 on a Fedora Core 2 and then samba 3.0.6-1 
> and still have the following problem.
>
> When I mount a smbfs, it sucesses but processes hang when they access 
> the mount point and smbumount returns "Device busy". Since even
system
> halt fails unmounting the filesystem, I have to switch off the machine.
>
> I tested either with smbmount command, or /etc/fstab entry and mount 
> command, as root or common user, with a Linux or Windows server, but 
> the problem still occurs.
>
> Note that is happens only with the first smbfs mount of the system. 
> Applications that access another smbfs mount point mounted after the 
> first one work very well.
>
> Thanks for any help or advice,
> Gr?goire.
>
>