Topic: Server crashing

[Tony Howden]

Hi All,

We are running a 5.5 server and have narrowed down the timing of our intermittent server crashes to the following log entries. Can anyone point us at the reason for this error. I cannot figure out why debian would rate a mention. Any help appreciated.

cheers
Tony

Jun 22 04:04:52 websvr-v1 kernel: Negative d_count (-1) for debian/dirs
Jun 22 04:04:52 websvr-v1 kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000
Jun 22 04:04:52 websvr-v1 kernel: current->tss.cr3 = 00c21000, %%cr3 = 00c21000
Jun 22 04:04:52 websvr-v1 kernel: *pde = 00000000
Jun 22 04:04:52 websvr-v1 kernel: Oops: 0002
Jun 22 04:04:52 websvr-v1 kernel: CPU:    0
Jun 22 04:04:52 websvr-v1 kernel: EIP:    0010:[dput+310/328]
Jun 22 04:04:52 websvr-v1 kernel: EIP:    0010:[]
Jun 22 04:04:52 websvr-v1 kernel: EFLAGS: 00010296
Jun 22 04:04:52 websvr-v1 kernel: eax: 00000029   ebx: c3301000   ecx: 0000003b   edx: 00000000
Jun 22 04:04:52 websvr-v1 kernel: esi: ffffffff   edi: 00001004   ebp: 00000001   esp: c2947e5c
Jun 22 04:04:52 websvr-v1 kernel: ds: 0018   es: 0018   ss: 0018
Jun 22 04:04:52 websvr-v1 kernel: Process updatedb (pid: 2916, process nr: 85, stackpage=c2947000)
Jun 22 04:04:52 websvr-v1 kernel: Stack: c33010e0 c3301060 c3301f00 c3301000 c0132f88 c3301000 c2947eb4 c2947eb4
Jun 22 04:04:52 websvr-v1 kernel:        c0223eec 00001004 00001004 c0133f03 fffffb42 00000b46 00000000 c0261fe0
Jun 22 04:04:52 websvr-v1 kernel:        c0223eec c0261fe0 c01416ef c01e3ec0 c2a5a188 c5ceb018 c2947eb4 c2947eb4
Jun 22 04:04:52 websvr-v1 kernel: Call Trace: [prune_dcache+288/340] [try_to_free_inodes+199/264] [ext2_find_entry+455/752] [cprt+6592/19872] [grow_inodes+30/384] [get_new_inode+185/292] [iget4+102/112]
Jun 22 04:04:52 websvr-v1 kernel: Call Trace: [] [] [] [] [] [] []
Jun 22 04:04:52 websvr-v1 kernel:        [iget+19/24] [ext2_lookup+84/124] [real_lookup+79/160] [lookup_dentry+296/488] [__namei+40/88] [sys_newlstat+14/96] [system_call+52/56]
Jun 22 04:04:52 websvr-v1 kernel:        [] [] [] [] [] [] []
Jun 22 04:04:52 websvr-v1 kernel: Code: c7 05 00 00 00 00 00 00 00 00 83 c4 10 5b 5e c3 89 f6 56 53

[Kelvin]

Tony,

Funny this should come up. I've just been looking at one server which is showing a kernel bug dump like yours for the first time. I tracked my problem down to a couple of corrupted files. They are so badly corrupt, any attempt to access the files causes a segmentation fault from the console and a kernel bug check like yours when the files are accessed via samba.

Kelvin