System Hangs on SMB Shares

Per-Olof Litby - Reg'l Mgr Nordic/Baltic - Java System Software - Sun Microsystems politby at sun.com
Wed Jun 2 09:25:01 UTC 2004


Paul, thanks for pointing this out. I did indeed find log entries which 
fit your description. Will investigate the workaround.

/POL

Paul R. Ganci wrote:

> 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.
>

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