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Re: System Hangs on SMB Shares



Per-Olof Litby - Reg'l Mgr Nordic/Baltic - Java System Software - Sun Microsystems wrote:

My FC2 system allows me to mount SMB shares entered in /etc/fstab/ just fine. But whenever I try to access them in the Nautilus file manager, my entire file system hangs and becomes unreachable. I can still use apps such as terminal and Mozilla, but to get file management back I need to reboot my system.

Is this a known problem?

I believe this is a bug as I and others have had this problem. You can check your /var/log/messages file to see if you have a log entry similar to the following:


smb_lookup: find //.Trash-jos failed, error=-5
Unable to handle kernel NULL pointer dereference at virtual address 00000000
printing eip:
00000000
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
CPU:    0
EIP:    0060:[<00000000>]    Not tainted
EFLAGS: 00010246   (2.6.5)
EIP is at 0x0
eax: d9f94c20   ebx: d68a3f30   ecx: c015e7c0   edx: d81c4ae0
esi: d68a3fa0   edi: c1329600   ebp: d44d85e0   esp: d68a3efc
ds: 007b   es: 007b   ss: 0068
Process nautilus (pid: 6808, threadinfo=d68a2000 task=d6d1cd60)
Stack: c01c16d6 d44d85e0 d68a3fa0 c015e7c0 d68a3f30 00000000 00000002 00000004
      d43c4ec4 00000000 d43c0000 d81c4ae0 d4ac8b60 00000000 fffe7b2a d44d85e0
      00000000 00000000 d43c0000 00000002 00000000 00000000 00000001 00000004
Call Trace:
[<c01c16d6>] smb_readdir+0x3f6/0x5a0
[<c015e7c0>] filldir64+0x0/0x120
[<c015e489>] vfs_readdir+0x89/0xa0
[<c015e7c0>] filldir64+0x0/0x120
[<c015e94e>] sys_getdents64+0x6e/0xaa
[<c015e7c0>] filldir64+0x0/0x120
[<c0107009>] sysenter_past_esp+0x52/0x71

Code: Bad EIP value.

I found a work around from this bug report (http://bugme.osdl.org/show_bug.cgi?id=2642):

killall -STOP nautilus
smbmount //your/share  /mntpoint
killall -CONT nautilus

I can confirm that this procedure works for me as I have not had a hang since using it. You can read the bug report to get details on why this problem might be occurring. This procedure may not help you since you are using fstab to do the mounts, but as a temporary solution you could comment out the fstab entries and mount the shares manually using the procedure above.

--
Paul (ganci nurdog com)



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