[OpenAFS] OpenAFS Client crash

Hans-Gunther Borrmann hans-gunther.borrmann@rz.uni-freiburg.de
Mon, 11 Jul 2005 11:06:44 +0200


I experienced the following client crash:

Jul 11 10:12:49  ----------- [cut here ] --------- [please bite here ] 
Kernel BUG at inode:1109
nvalid operand: 0000 [1] SMP                                                                                                           
Modules linked in: libafs ipt_multiport ipt_state ip_conntrack ipt_LOG 
iptable_filter ip_tables tg3 ide_cd cdrom
Pid: 27008, comm: php.exe Tainted: P      2.6.12-rc2
RIP: 0010:[<ffffffff8018f8ce>] <ffffffff8018f8ce>{iput+30}                                                                              
RSP: 0018:ffff810073777dc8  EFLAGS: 00010246
RAX: ffffffff880c3fa0 RBX: ffff810002e7ec00 RCX: 0000000000000000                                                                       
RDX: ffff8100f96a4a00 RSI: ffff810073777d58 RDI: ffff810002e7ec00
RBP: ffff810002e7ec00 R08: 0000000000000000 R09: ffff810073777d58                                                                       
R10: ffff8100f903e400 R11: ffffffff8809bef0 R12: ffff81007f7eb090
R13: ffffffff880c3460 R14: 00007fffff8a9620 R15: 00007fffff8adcf6                                                                       
FS:  00000000008f4ae0(0063) GS:ffffffff80460d00(0000) knlGS:00000000082069a0
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b                                                                                       
CR2: 0000000000452b80 CR3: 0000000072e4d000 CR4: 00000000000006e0
Process php.exe (pid: 27008, threadinfo ffff810073776000, task 
Stack: ffffffff880c3460 ffffffff880640b1 ffff8100f903e000 ffff8100f903e000
ffff810002e7ec00 ffffffff8809c075 ffff810073777e68 ffff810073777ef8                                                                     
ffff810073777e68 0000000000000296
Call Trace:<ffffffff880640b1>{:libafs:afs_PutVCache+161} 
<ffffffff8017ef1d>{vfs_lstat+61} <ffffffff8017f33f>{sys_newlstat+31}
Code: 0f 0b cf 30 32 80 ff ff ff ff 55 04 66 66 90 66 66 90 48 85                                                                       
RIP <ffffffff8018f8ce>{iput+30} RSP <ffff810073777dc8>

The machine stayed running, but each program accessing any local file hung.

OpenAFS: 1.3.81
Operating System: Gentoo Linux with 64 bit SMP vanilla kernel  2.6.12-rc2
Hardware: Dual AMD Opteron.

Any help or hints are appreciated. The crash happend during the first attempt 
to migrate the university webservice to this machine. The webservice 
completely depends on AFS.

Hans-Gunther Borrmann <hans-gunther.borrmann@rz.uni-freiburg.de>
Rechenzentrum der Universitaet Freiburg
Hermann-Herder-Str. 10, D79104 FREIBURG
Tel.: +49 761/203-4652
Fax:  +49 761/203-4643