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SubjectRe: [2.6.12-rc1-mm3] BUG: atomic counter underflow in smbfs
Hi Benoit,

>>>I had the following BUG with 2.6.12-rc1-mm3:
>>>
>>>remote host is running 2.6.12-rc1-mm1 with samba 3.0.13.
>>>
>>>[23156.357178] smb_lookup: find musique/Pink_Floyd-Dark_Side_of_the_Moon
>>>failed, error=-512
>>>[23157.057501] BUG: atomic counter underflow at:
>>>[23157.057508] [<c0103c27>] dump_stack+0x17/0x20
>>>[23157.057516] [<e0ed0f31>] smb_rput+0x51/0x60 [smbfs]
>>>[23157.057530] [<e0ecd497>] smb_proc_query_cifsunix+0x77/0xa0 [smbfs]
>>>[23157.057538] [<e0eca14c>] smb_newconn+0x2bc/0x310 [smbfs]
>>>[23157.057546] [<e0ed05ac>] smb_ioctl+0xfc/0x100 [smbfs]
>>>[23157.057554] [<c0162188>] do_ioctl+0x48/0x70
>>>[23157.057559] [<c01622f9>] vfs_ioctl+0x59/0x1b0
>>>[23157.057563] [<c0162489>] sys_ioctl+0x39/0x60
>>>[23157.057582] [<c0102d8f>] sysenter_past_esp+0x54/0x75
>>
>>Oh dear. That warning is not necessarily telling us that there's a serious
>>problem - often it's fairly harmless. Did the filesytem misbehave in any
>>other manner?
>>
>
> It was stucked (couldn't do anything inside) but i was able to umount
> it.

Already reported, discussed and fixed.

http://bugme.osdl.org/show_bug.cgi?id=4403
http://marc.theaimsgroup.com/?l=linux-kernel&m=111182797913419&w=2
http://marc.theaimsgroup.com/?l=linux-kernel&m=111184280803027&w=2
--
Jean Delvare
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