I have several 411 boards that we use in the field and lately we have seen the kernel panic more then we would like. Here is the trace from the terminal before i rebuilt the board. Anybody help me understand why this is happening? We can rebuild them, but they are deployed in India and we are based in the US, so the 24 hour flight gets old to reset these boards. This is not happening on any of our US installs. We currently have about 200 in the US.
RouterBoard 411UAHR
CPU frequency: 680 MHz
Memory size: 64 MB
Press any key within 2 seconds to enter setup..
loading kernel from nand... OK
setting up elf image... OK
jumping to kernel code
Oops[#1]:
Cpu 0
$ 0 : 00000000 00000001 c3d7237c 00000000
$ 4 : c0378f3c 00000f73 ffffffff c03c0bac
$ 8 : c03c4c7f c03c4c7f 00000008 2d646972
$12 : 6e672074 c0312493 0000008c 6f206164
$16 : c3d7235c c3d5692c c3d7237c 00000001
$20 : c3c21c40 00000004 ffffffff c0345ea0
$24 : 00000018 c025f9f0
$28 : c3c20000 c3c21c10 c0380000 c01e1c20
Hi : 0000005b
Lo : 00000003
epc : c01e1ca8 yaffs_AddObjectToDirectory+0x114/0x188
Not tainted
ra : c01e1c20 yaffs_AddObjectToDirectory+0x8c/0x188
Status: 1000c603 KERNEL EXL IE
Cause : 0080000c
BadVA : 00000004
PrId : 00019374 (MIPS 24Kc)
Process init (pid: 1, threadinfo=c3c20000, task=c3c1c000, tls=00000000)
Stack : c3c0d000 c3d7235c 00000003 00000002 c3c0d000 00000000 00000000 c01e4920
c3d110fc 00000000 00000000 00000000 ffffffff 0000001c 00000b89 0000035b
000052d2 21800075 00000000 00000000 00000000 00049941 00000000 c3c0d000
c3d72348 c3d7235c c3c0d000 c3c0d000 0000000a 0000001c c3d110fc 00000000
00000000 00000000 7f878c00 c01e7d5c c3c21d60 c0216f44 c0338cbd c020bccc
...
Call Trace:
[<c01e1ca8>] yaffs_AddObjectToDirectory+0x114/0x188
[<c01e4920>] yaffs_CheckpointRestore+0x1f4/0x42c
[<c01e7d5c>] yaffs_GutsInitialise+0x4f4/0x1e94
[<c01e1058>] yaffs_internal_read_super+0x6e8/0x828
[<c01e11d8>] yaffs_internal_read_super_mtd+0x14/0x2c
[<c018d974>] get_sb_bdev+0x138/0x1b0
[<c01de6c4>] yaffs_read_super+0x20/0x2c
[<c018c9d4>] vfs_kern_mount+0x68/0x11c
[<c018cae0>] do_kern_mount+0x48/0x100
[<c01a51b4>] do_mount+0x620/0x694
[<c01a5564>] sys_mount+0x8c/0xf0
[<c010d4c4>] stack_done+0x20/0x3c
Code: ae00001c 8e230068 26020020 <ac620004> ae030020 26230068 ae030024 ae22 0068 8e020008
---[ end trace cf32c6efd3829797 ]---
Kernel panic - not syncing: Attempted to kill init!