Re: Kernel oops in jffs2 mount - any ideas?

[Robin Gilks <robin.gilks@tait.co.nz>]

Artem Bityutskiy wrote:

> So the crash is somewhere in the CFI code. You should try to dig it and
> realize why it oopses.

Pretty much at the same point except now its the garbage collector 
crashing and leaving a lock on an inode so the kernel stalls.

No clues as to what is going on though :-(

[   13.591311] jffs2_scan_eraseblock(): Node at 0x0004aff8 {0x1985, 
0xe001, 0x0000002d) has invalid CRC 0xd7218112 (calculated 0x05000000)
[   13.617310] jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found 
at 0x0004b000: 0xd721 instead
[   13.638175] jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found 
at 0x0004b010: 0x4558 instead
[   13.656489] jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found 
at 0x0004b014: 0x0502 instead
[   13.674599] jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found 
at 0x0004b018: 0xbf85 instead
[   13.692594] jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found 
at 0x0004b01c: 0x584a instead
[   13.710884] jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found 
at 0x0004b020: 0x7474 instead
[   13.728881] jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found 
at 0x0004b024: 0x31ff instead
[   15.178914] Oops: kernel access of bad area, sig: 11 [#1]
[   15.189159] NIP: C0113524 LR: C0114128 CTR: C0113524
[   15.199017] REGS: c3cafcd0 TRAP: 0300   Not tainted  (2.6.18-buildroot)
[   15.212119] MSR: 00009032 <EE,ME,IR,DR>  CR: 22008028  XER: 0000005F
[   15.224743] DAR: FF80101B, DSISR: C0000000
[   15.232877] TASK = c036e410[280] 'jffs2_gcd_mtd1' THREAD: c3cae000
[   15.244778] GPR00: 00000000 C3CAFD80 C036E410 FF800FFF C3C2E678 
00000000 C0352A44 E67B3F7B
[   15.261366] GPR08: 000DF464 C01AF99C FF800FFF C0113524 22008024 
00000000 C3CAFE38 00000000
[   15.277955] GPR16: C3CAFE24 C01C0000 C3CAFDA8 00000000 C3CAFE28 
C3C2E640 C0352A20 00000000
[   15.294544] GPR24: 000DF464 C3C2E640 00000028 00000000 000DF464 
C3C2E678 C03FEC14 C3C2E678
[   15.311479] NIP [C0113524] put_chip+0xa0/0x2e8
[   15.320294] LR [C0114128] cfi_intelext_read+0x1a0/0x240
[   15.330656] Call Trace:
[   15.335509] [C3CAFD80] [C3C2E640] 0xc3c2e640 (unreliable)
[   15.346223] [C3CAFDA0] [C0114128] cfi_intelext_read+0x1a0/0x240
[   15.357974] [C3CAFDF0] [C010C8A0] part_read+0x84/0xe0
[   15.367997] [C3CAFE10] [C00B6AD4] 
jffs2_do_read_inode_internal+0x12c/0x1124
[   15.381821] [C3CAFE90] [C00B7B30] jffs2_do_crccheck_inode+0x64/0xc0
[   15.394262] [C3CAFF00] [C00BBF9C] jffs2_garbage_collect_pass+0x194/0x8a4
[   15.407568] [C3CAFF50] [C00BDE04] jffs2_garbage_collect_thread+0xa8/0x178
[   15.421046] [C3CAFFF0] [C000514C] kernel_thread+0x44/0x60
[   15.431745] Instruction dump:
[   15.437622] 3863a000 4beffdf5 387f001c 38800003 38a00001 38c00000 
4befb5d5 80010024
[   15.453000] 83e1001c 38210020 7c0803a6 4e800020 <800a001c> 2f800000 
419effd0 7d435378
[   15.470060] VFS: Mounted root (jffs2 filesystem).
[   15.479675] Freeing unused kernel memory: 92k init
[   15.488661] jffs2_lookup()
[   15.493994] jffs2_read_inode(): inode->i_ino == 3
[   15.503383] [JFFS2 DBG] (1) jffs2_do_read_inode: read inode #3
[   15.514963] [JFFS2 DBG] (1) jffs2_do_read_inode_internal: ino #3 
nlink is 1
[   15.528803] [JFFS2 DBG] (1) jffs2_get_inode_nodes: ino #3
[   15.539699] [JFFS2 DBG] (1) jffs2_get_inode_nodes: read 40 bytes at 
0x04b868(2).
[   15.554222] [JFFS2 DBG] (1) jffs2_alloc_full_dirent: c3ca4ee0
[   15.565732] [JFFS2 DBG] (1) jffs2_add_fd_to_list: add dirent "zero", 
ino #166
[   15.579790] [JFFS2 DBG] (1) jffs2_get_inode_nodes: read 40 bytes at 
0x04b7f0(2).
[   15.594479] [JFFS2 DBG] (1) jffs2_alloc_full_dirent: c3ca4fe0
[   15.605904] [JFFS2 DBG] (1) jffs2_add_fd_to_list: add dirent 
"urandom", ino #165
[   15.620569] [JFFS2 DBG] (1) jffs2_get_inode_nodes: read 40 bytes at 
0x04b778(2).
[   15.635260] [JFFS2 DBG] (1) jffs2_alloc_full_dirent: c3ca43e0
[   15.646848] [JFFS2 DBG] (1) jffs2_add_fd_to_list: add dirent "ttyp9", 
ino #164
[   15.661007] [JFFS2 DBG] (1) jffs2_get_inode_nodes: read 40 bytes at 
0x04b700(2).
[   15.675722] [JFFS2 DBG] (1) jffs2_alloc_full_dirent: c3ca4760
...
...
...
[   20.078514] jffs2_read_inode(): inode->i_ino == 12
[   20.087997] [JFFS2 DBG] (1) jffs2_do_read_inode: read inode #12
[   20.099752] [JFFS2 DBG] (1) jffs2_do_read_inode: waiting for ino #12 
in state 1

HELP!

-- 
Robin



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