[Squashfs-devel] Kernel crashes after mount

[goog l. <cec...@ya...>]

Hi all,

I has 64M NAND on my board. I use mksquashfs version
3.1 and squashfs codes for Linux 2.6.14. I do not have
any problem when I create an image with a single media
file of 43 MB, write it to flash and mount it.
However, I receive the error message and kernel crash
when the file is larger than 43 MB. The log is below.
Note I have tried the same thing with mkcramfs tool
and cramfs-1.1 codes for Linux 2.6.14. I have no
problem with the file size of 62 MB. Any idea would be
appreciated.

Ceco

mount /dev/mtdblock4 /mnt -t squashfs
mount: wrong fs type, bad option, bad superblock on
/dev/mtdblock4,
       or too many mounted file systems
Segmentation fault
[42949532.430000] Unable to handle kernel paging
request at virtual address c903388c
[42949532.430000] pgd = c7d4c000
[42949532.430000] [c903388c] *pgd=00000000
[42949532.430000] Internal error: Oops: 805 [#1]
[42949532.430000] Modules linked in: squashfs
[42949532.430000] CPU: 0
[42949532.430000] PC is at free_block+0x8c/0x12c
[42949532.430000] LR is at free_block+0x84/0x12c
[42949532.430000] pc : [<c0083458>]    lr :
[<c0083450>]    Not tainted
[42949532.430000] sp : c0471ee0  ip : c0471f10  fp :
c0471f0c
[42949532.430000] r10: 00000000  r9 : c04afa90  r8 :
0000000b
[42949532.430000] r7 : 00000005  r6 : c0417140  r5 :
c04152a0  r4 : c759f000
[42949532.430000] r3 : c759f01c  r2 : 00000000  r1 :
00000160  r0 : 006a521c
[42949532.430000] Flags: nZCv  IRQs off  FIQs on  Mode
SVC_32  Segment kernel
[42949532.430000] Control: C5387F  Table: 87D4C000 
DAC: 00000017
[42949532.430000] Process events/0 (pid: 4, stack
limit = 0xc04701a0)
[42949532.430000] Stack: (0xc0471ee0 to 0xc0472000)
[42949532.430000] 1ee0: c0471f00 0000000b c04afa80
00000020 c04afa90 c0417140 00000000 00000000
[42949532.430000] 1f00: c0471f34 c0471f10 c0083588
c00833d8 c04152a0 00000000 c0417140 c041718c
[42949532.430000] 1f20: c02c8808 c02c8818 c0471f64
c0471f38 c00844e0 c0083504 c0471f64 c0426790
[42949532.430000] 1f40: 80000013 c0426788 c0084450
00000001 c0471f80 c0426780 c0471fc4 c0471f68
[42949532.430000] 1f60: c00590fc c008445c ffffffff
ffffffff 00000001 00000000 c0045a50 00010000
[42949532.430000] 1f80: 00000000 00000000 00000000
c0428580 c0045a50 00100100 00200200 c0426780
[42949532.430000] 1fa0: c0426780 c0470000 c044ff20
c0058f38 fffffffc 00000000 c0471ff4 c0471fc8
[42949532.430000] 1fc0: c005ca04 c0058f44 ffffffff
ffffffff 00000000 00000000 00000000 00000000
[42949532.430000] 1fe0: 00000000 00000000 00000000
c0471ff8 c004ad1c c005c938 02010001 0008004e
[42949532.430000] Backtrace:
[42949532.430000] [<c00833cc>] (free_block+0x0/0x12c)
from [<c0083588>] (drain_array_locked+0x90/0xb4)
[42949532.430000] [<c00834f8>]
(drain_array_locked+0x0/0xb4) from [<c00844e0>]
(cache_reap+0x90/0x1dc)
[42949532.430000] [<c0084450>] (cache_reap+0x0/0x1dc)
from [<c00590fc>] (worker_thread+0x1c4/0x254)
[42949532.430000] [<c0058f38>]
(worker_thread+0x0/0x254) from [<c005ca04>]
(kthread+0xd8/0x10c)
[42949532.430000] [<c005c92c>] (kthread+0x0/0x10c)
from [<c004ad1c>] (do_exit+0x0/0xb1c)
[42949532.430000]  r8 = 00000000  r7 = 00000000  r6 =
00000000  r5 = 00000000
[42949532.430000]  r4 = 00000000
[42949532.430000] Code: e5961010 eb02614c e5942014
e284301c (e7832100)
[42949532.430000]

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