[OpenAFS-devel] Kernel panic with openafs 1.4.0

[Ulrich Seidl]

Today I've encountered the following kernel panic with openafs 1.4.0 on a Scientific Linux 4 system (RedHat Enterprise 4 compatible). Will this be fixed in 1.4.2?

Aug 24 11:08:34 gromit kernel: invalid operand: 0000 [#1]
Aug 24 11:08:34 gromit kernel: SMP

rror ext3 jbd dm_mod ata_piix libata sd_mod scsi_mod
Aug 24 11:08:34 gromit kernel: CPU:    0

Aug 24 11:08:34 gromit kernel: EFLAGS: 00010246   (2.6.9-34.0.1.ELsmp)
Aug 24 11:08:34 gromit kernel: EIP is at osi_Panic+0x0/0x9 [libafs]

Aug 24 11:08:34 gromit kernel: ds: 007b   es: 007b   ss: 0068

Aug 24 11:08:34 gromit kernel: Call Trace:

Aug 24 11:08:34 gromit kernel:  [<e0c292c4>] FindItem+0x5c/0xdc [libafs]

Aug 24 11:08:34 gromit kernel:  [<c02d0ca2>] __cond_resched+0x14/0x39

Aug 24 11:08:34 gromit kernel:  [<c01aa2a5>] inode_has_perm+0x4c/0x54
Aug 24 11:08:34 gromit kernel:  [<c02d0ca2>] __cond_resched+0x14/0x39
Aug 24 11:08:34 gromit kernel:  [<c016eec7>] d_alloc+0x175/0x17d
Aug 24 11:08:34 gromit kernel:  [<c0165a29>] real_lookup+0x6e/0xd2
Aug 24 11:08:34 gromit kernel:  [<c0165c46>] do_lookup+0x56/0x8f
Aug 24 11:08:34 gromit kernel:  [<c0165fb1>] __link_path_walk+0x332/0xbb5
Aug 24 11:08:34 gromit kernel:  [<c0166877>] link_path_walk+0x43/0xbe
Aug 24 11:08:34 gromit kernel:  [<c02d0ca2>] __cond_resched+0x14/0x39

Aug 24 11:08:34 gromit kernel:  [<c011aecf>] do_page_fault+0x1ae/0x5c6
Aug 24 11:08:34 gromit kernel:  [<c0166c0c>] path_lookup+0x14b/0x17f
Aug 24 11:08:34 gromit kernel:  [<c01672e3>] open_namei+0x99/0x579
Aug 24 11:08:34 gromit kernel:  [<c01598ea>] filp_open+0x45/0x70
Aug 24 11:08:34 gromit kernel:  [<c02d0ca2>] __cond_resched+0x14/0x39

Aug 24 11:08:34 gromit kernel:  [<c0159c46>] sys_open+0x31/0x7d
Aug 24 11:08:34 gromit kernel:  [<c02d268f>] syscall_call+0x7/0xb
Aug 24 11:08:34 gromit kernel:  [<c02d007b>] schedule+0x2f7/0x8d3

ff 56 89 d6 83 fe 01

Aug 24 11:08:34 gromit kernel: kernel BUG at /usr/src/redhat/BUILD/openafs-1.4.0/src/libafs/MODLOAD-2.6.9-34.0.1.ELsmp-MP/rx_kcommon.c:131! Aug 24 11:08:34 gromit kernel: Modules linked in: nvidia(U) libafs(U) parport_pc lp parport autofs4 i2c_dev i2c_core md5 ipv6 ipt_REJECT ipt_state ip_conntrack iptable_filter ip_tables button battery ac uhci_h cd ehci_hcd pcspkr snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore e1000 sk98lin floppy dm_snapshot dm_zero dm_mi Aug 24 11:08:34 gromit kernel: EIP: 0060:[<e0c56f79>] Tainted: PF VLI Aug 24 11:08:34 gromit kernel: eax: e0c74f62 ebx: dc808000 ecx: dc808c4c edx: e0c74f33 Aug 24 11:08:34 gromit kernel: esi: ce9b4080 edi: e0c89de0 ebp: e0c95bf8 esp: dc808c50 Aug 24 11:08:34 gromit kernel: Process designmd.bin (pid: 14248, threadinfo=dc808000 task=dda446b0) Aug 24 11:08:34 gromit kernel: Stack: e0c3484d 0000012c e0c95bf8 00000005 00000000 dc808d5c e0c380e7 dc808d2c Aug 24 11:08:34 gromit kernel: 00000000 dc808d5c dc808d6c e0c36196 00000000 00100000 00000001 00000002 Aug 24 11:08:34 gromit kernel: 00000003 00000800 00000005 000002fb 000002fb 00000009 00000009 0000000f Aug 24 11:08:34 gromit kernel: [<e0c3484d>] afs_NewVCache+0x34b/0x6ee [libafs] Aug 24 11:08:34 gromit kernel: [<e0c380e7>] afs_FindVCache+0x2cd/0x2e6 [libafs] Aug 24 11:08:34 gromit kernel: [<e0c36196>] afs_GetVCache+0x102/0x4c0 [libafs] Aug 24 11:08:34 gromit kernel: [<e0c29226>] afs_dir_GetBlob+0xb/0x1e [libafs] Aug 24 11:08:34 gromit kernel: [<e0c2901d>] afs_dir_LookupOffset+0x8c/0x93 [libafs] Aug 24 11:08:34 gromit kernel: [<e0c3f831>] afs_lookup+0xa47/0x102a [libafs] Aug 24 11:08:34 gromit kernel: [<e0c6447f>] afs_linux_lookup+0xab/0x1c9 [libafs] Aug 24 11:08:34 gromit kernel: [<e0c38817>] afs_AccessOK+0x37/0x12b [libafs] Aug 24 11:08:34 gromit kernel: [<c01c23c2>] direct_strncpy_from_user+0x3e/0x5d Aug 24 11:08:34 gromit kernel: [<c01c23c2>] direct_strncpy_from_user+0x3e/0x5d Aug 24 11:08:34 gromit kernel: Code: b7 f2 0f bf d6 53 e8 eb fc ff ff 89 c3 31 c0 85 db 74 0b 89 da 89 f0 e8 42 ff ff ff 89 d8 5b 5e c3 0f b7 d0 31 c0 e9 d3 ff ff ff <0f> 0b 83 00 b5 6f c7 e0 c3 57 89 c7 83 c8

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