[Bug 153855] BUG: soft lockup detected on CPU#0! with cifs

[jcdutton]

Public bug reported:

Binary package hint: linux-image-2.6.15-29-server

I get a lock up when using CIFS.
The following output was captured via the console port.
During the lock up, ping works to the box, but sshd or any other higher level service does not work.

[42951888.400000]  CIFS VFS: Calculated size 0x27 vs actual length 0x48
[42951888.420000]  CIFS VFS: bad smb size detected for Mid=15525
[42951889.400000]  CIFS VFS: Calculated size 0x27 vs actual length 0x48
[42951889.420000]  CIFS VFS: bad smb size detected for Mid=15625
[42951953.200000]  CIFS VFS: Calculated size 0x27 vs actual length 0x48
[42951953.220000]  CIFS VFS: bad smb size detected for Mid=21731
[42955494.580000]  CIFS VFS: Calculated size 0x27 vs actual length 0x48
[42955494.600000]  CIFS VFS: bad smb size detected for Mid=16670
[42955496.100000]  CIFS VFS: Calculated size 0x27 vs actual length 0x48
[42955496.120000]  CIFS VFS: bad smb size detected for Mid=17181
[42955584.780000]  CIFS VFS: Calculated size 0x27 vs actual length 0x48
[42955584.800000]  CIFS VFS: bad smb size detected for Mid=48076
[42957738.790000] BUG: soft lockup detected on CPU#0!
[42957738.790000]
[42957738.790000] Pid: 4505, comm:                rsync
[42957738.790000] EIP: 0060:[<c017cd3a>] CPU: 0
[42957738.790000] EIP is at generic_fillattr+0x8a/0xb0
[42957738.790000]  EFLAGS: 00000202    Not tainted  (2.6.15-29-server)
[42957738.790000] EAX: 00000009 EBX: 00320000 ECX: 00000009 EDX: 00000009
[42957738.790000] ESI: 00000000 EDI: dda5e378 EBP: f7541f70 DS: 007b ES: 007b
[42957738.790000] CR0: 8005003b CR2: b7966004 CR3: 1fae1820 CR4: 000006b0
[42957738.790000]  [<f8b2c730>] cifs_getattr+0x30/0x40 [cifs]
[42957738.790000]  [<c017cf49>] vfs_fstat+0x39/0x50
[42957738.790000]  [<c017d618>] sys_fstat64+0x18/0x40
[42957738.790000]  [<c01718e6>] do_sys_open+0xd6/0x100
[42957738.790000]  [<c0103313>] sysenter_past_esp+0x54/0x75
[42957748.800000] BUG: soft lockup detected on CPU#0!
[42957748.800000]
[42957748.800000] Pid: 4505, comm:                rsync
[42957748.800000] EIP: 0060:[<c017cd2a>] CPU: 0
[42957748.800000] EIP is at generic_fillattr+0x7a/0xb0
[42957748.800000]  EFLAGS: 00000202    Not tainted  (2.6.15-29-server)
[42957748.800000] EAX: 00000009 EBX: 00320000 ECX: 00000009 EDX: 00000001
[42957748.800000] ESI: 00000000 EDI: dda5e378 EBP: f7541f70 DS: 007b ES: 007b
[42957748.800000] CR0: 8005003b CR2: b7966004 CR3: 1fae1820 CR4: 000006b0
[42957748.800000]  [<f8b2c730>] cifs_getattr+0x30/0x40 [cifs]
[42957748.800000]  [<c017cf49>] vfs_fstat+0x39/0x50
[42957748.800000]  [<c017d618>] sys_fstat64+0x18/0x40
[42957748.800000]  [<c01718e6>] do_sys_open+0xd6/0x100
[42957748.800000]  [<c0103313>] sysenter_past_esp+0x54/0x75
[42957758.810000] BUG: soft lockup detected on CPU#0!
[42957758.810000]
[42957758.810000] Pid: 4505, comm:                rsync
[42957758.810000] EIP: 0060:[<c017cd25>] CPU: 0
[42957758.810000] EIP is at generic_fillattr+0x75/0xb0
[42957758.810000]  EFLAGS: 00000202    Not tainted  (2.6.15-29-server)
[42957758.810000] EAX: 00000009 EBX: 00320000 ECX: 00000009 EDX: 00000001
[42957758.810000] ESI: 00000000 EDI: dda5e378 EBP: f7541f70 DS: 007b ES: 007b
[42957758.810000] CR0: 8005003b CR2: b7966004 CR3: 1fae1820 CR4: 000006b0
[42957758.810000]  [<f8b2c730>] cifs_getattr+0x30/0x40 [cifs]
[42957758.810000]  [<c017cf49>] vfs_fstat+0x39/0x50
[42957758.810000]  [<c017d618>] sys_fstat64+0x18/0x40
[42957758.810000]  [<c01718e6>] do_sys_open+0xd6/0x100
[42957758.810000]  [<c0103313>] sysenter_past_esp+0x54/0x75
[42957768.820000] BUG: soft lockup detected on CPU#0!
[42957768.820000]
[42957768.820000] Pid: 4505, comm:                rsync
[42957768.820000] EIP: 0060:[<c017cd30>] CPU: 0
[42957768.820000] EIP is at generic_fillattr+0x80/0xb0
[42957768.820000]  EFLAGS: 00000202    Not tainted  (2.6.15-29-server)
[42957768.820000] EAX: 00000009 EBX: 00320000 ECX: 00000009 EDX: 00000001
[42957768.820000] ESI: 00000000 EDI: dda5e378 EBP: f7541f70 DS: 007b ES: 007b
[42957768.820000] CR0: 8005003b CR2: b7966004 CR3: 1fae1820 CR4: 000006b0
[42957768.820000]  [<f8b2c730>] cifs_getattr+0x30/0x40 [cifs]
[42957768.820000]  [<c017cf49>] vfs_fstat+0x39/0x50
[42957768.820000]  [<c017d618>] sys_fstat64+0x18/0x40
[42957768.820000]  [<c01718e6>] do_sys_open+0xd6/0x100
[42957768.820000]  [<c0103313>] sysenter_past_esp+0x54/0x75

With many more similar reports.

** Affects: linux-source-2.6.15 (Ubuntu)
     Importance: Undecided
         Status: New

-- 
BUG: soft lockup detected on CPU#0!   with cifs
https://bugs.launchpad.net/bugs/153855
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