Re: [axfs-developer] bugreport: axfs mouting problem

[Andre P. <and...@im...>]

Will Marone wrote:
> Andre,
>
> Thanks for the report, I'll look into that shortly. Before that, have 
> you tried using a root parameter along the lines of:
>
> root=mtdX
>
> where X is the number of your mtd device? Don't include /dev/ on that, 
> it's omitted intentionally.

Hi Will,

thanks for your reply.
I tried to only set root=mtd3, but it doesn't work either.
Attached is the log. Sorry for not being more precise about the problem. 
The only thing I can give you at the moment is the stack trace.

Best regards,
Andre


<log>
[    1.160000] Unable to handle kernel NULL pointer dereference at 
virtual address 00000000
[    1.170000] pgd = c0004000
[    1.170000] [00000000] *pgd=00000000
[    1.180000] Internal error: Oops: f5 [#1]
[    1.180000] Modules linked in:
[    1.180000] CPU: 0
[    1.180000] PC is at memcpy+0x48/0x330
[    1.180000] LR is at axfs_copy_mem+0x24/0x2c
[    1.180000] pc : [<c00e2588>]    lr : [<c00a6d2c>]    Not tainted
[    1.180000] sp : c02d7b04  ip : 00000000  fp : c02d7b2c
[    1.180000] r10: c0314000  r9 : 00000000  r8 : 00000100
[    1.180000] r7 : 00000000  r6 : 00000000  r5 : c03c2200  r4 : 00000100
[    1.180000] r3 : c0314000  r2 : 00000080  r1 : 00000000  r0 : c037dac0
[    1.180000] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  Segment kernel
[    1.180000] Control: 397F
[    1.180000] Table: A0004000  DAC: 00000017
[    1.180000] Process swapper (pid: 1, stack limit = 0xc02d6260)
[    1.180000] Stack: (0xc02d7b04 to 0xc02d8000)
[    1.180000] 7b00:          c03c2200 00000000 00000000 00000100 
c037dac0 00000100 c00a6d2c
[    1.180000] 7b20: c02d7b74 c02d7b30 c00a6e2c c00a6d14 00000100 
00000000 c037dac0 c03c2200
[    1.180000] 7b40: 00000000 c0062734 00000000 00000100 00000000 
c037dac0 c02c5320 c036f2a0
[    1.180000] 7b60: c02c5320 c01f8918 c02d7bd4 c02d7b78 c00a73b0 
c00a6d40 00000100 00000000
[    1.180000] 7b80: c03c2200 c0314000 c02c5320 00000000 c02d7bd4 
c02d7ba0 c00678dc c007ad84
[    1.180000] 7ba0: c02d7bc4 c0314000 c0025674 c03c2200 c03c2200 
c0314400 c02c5320 c036f2a0
[    1.180000] 7bc0: c02c5320 c01f8918 c02d7bfc c02d7bd8 c00a8dd8 
c00a7338 c02d7bfc c03b2000
[    1.180000] 7be0: c0314400 c01f8918 00008000 00008000 c02d7c2c 
c02d7c00 c00a8e9c c00a8d90
[    1.180000] 7c00: c036f2a0 c00a732c c02c5320 c02d7e68 00008000 
c03b2000 c03b2000 c0314400
[    1.180000] 7c20: c02d7cc4 c02d7c30 c00a91ac c00a8e48 00000003 
c00a732c c02c5320 c02c57a0
[    1.180000] 7c40: c01f7838 c02d7e68 c02d7c6c c02d7c58 c0077610 
c00e46c4 c02d7e68 c034ac30
[    1.180000] 7c60: c02d7cbc c02d7c70 c006f484 c00775f8 c0379001 
00000001 c02d7cd4 01c0d8cc
[    1.180000] 7c80: 00000004 c0379001 c02c57a0 c0341c98 c03b2004 
c0062734 c02d7cbc c02d7cf4
[    1.180000] 7ca0: c0314400 c03b2000 c01f8918 00008000 c02c5320 
c03b2000 c02d7d24 c02d7cc8
[    1.180000] 7cc0: c00a6c70 c00a9018 c02c5320 c02d7cf4 c0233640 
00000001 00000001 c0062734
[    1.180000] 7ce0: c0220f40 c02c5320 00000000 00000000 00000000 
00000000 c037c4a0 c02c5320
[    1.180000] 7d00: fffffff4 c03b2000 00000000 c01f8918 00000000 
c0378000 c02d7d54 c02d7d28
[    1.180000] 7d20: c0067df8 c00a6a24 c02c5320 00000000 c02d7d54 
c01f8918 ffffffed 00000000
[    1.180000] 7d40: c03b2000 00008000 c02d7d74 c02d7d58 c0067e90 
c0067dac c02d7d74 00000000
[    1.180000] 7d60: 00000000 00000000 c02d7eec c02d7d78 c007ca90 
c0067e60 00000000 00000000
[    1.180000] 7d80: 00000000 00000000 00000000 00000000 c02d7dac 
c02d7da0 c00766f4 c007667c
[    1.180000] 7da0: c02d7dbc c02d7db0 c0076718 c00766b4 c02d7dd4 
c02d7dc0 c02d7ddc c02d7dc8
[    1.180000] 7dc0: c01f7838 00000000 c02d7e24 c02d7dd8 c0050a04 
c0050420 00000044 c00e46c4
[    1.180000] 7de0: 000200d0 00000000 00000000 00000001 c01f784c 
c01f784c 20000013 c01f75cc
[    1.180000] 7e00: 00000002 c01f75b8 c02d7e64 c02d7e18 c0050a74 
c00502a4 00000044 c02d7e28
[    1.180000] 7e20: 000200d0 00000000 00000000 00000001 c01f784c 
c01f784c c0232f20 c01c41d8
[    1.180000] 7e40: c00171b0 000000d0 00000000 c02d2d60 00000000 
c01f7848 c02d7eb4 c02d7e68
[    1.180000] 7e60: c0051494 c0050990 c0341c98 c02c57a0 000200d0 
00000010 c0233640 00000001
[    1.180000] 7e80: 00000001 00000000 c0220f40 c01c41d8 c00171b0 
c00171b0 00008000 c02d7efc
[    1.180000] 7ea0: 00000000 c00171b0 c02d7ec4 c02d7eb8 c00516fc 
c005143c c02d7eec c02d7ec8
[    1.180000] 7ec0: c007b63c 00000000 c0379000 c00171b0 00008000 
00008000 00000000 c00171b0
[    1.180000] 7ee0: c02d7f24 c02d7ef0 c007cb88 c007c55c 00000000 
c02d7f28 c02d7f24 c03b2000
[    1.180000] 7f00: c0378000 00000000 c034d000 c034d005 c02d6000 
c034d000 c02d7f44 c02d7f28
[    1.180000] 7f20: c0008ca8 c007cb08 00000000 c02c57a0 00000000 
c034d000 c02d7f8c c02d7f48
[    1.180000] 7f40: c0008e24 c0008c8c c0039890 c003d6c0 c0220f40 
00000000 c02d2d60 c003d7ec
[    1.180000] 7f60: c02d7f60 c02d7f60 c00171b0 c00171fc c02d6000 
00000000 00000000 00000000
[    1.180000] 7f80: c02d7fac c02d7f90 c00090c4 c0008d40 c02d7fac 
c02d7fa0 c02081d8 c0016924
[    1.180000] 7fa0: c02d7ff4 c02d7fb0 c0008880 c0009048 00000000 
00000000 c0008704 c002c3fc
[    1.180000] 7fc0: 00000000 00000000 00000000 00000000 00000000 
00000000 00000000 00000000
[    1.180000] 7fe0: 00000000 00000000 00000000 c02d7ff8 c002c3fc 
c0008710 2020200a 312d2520
[    1.180000] Backtrace:
[    1.180000] [<c00a6d08>] (axfs_copy_mem+0x0/0x2c) from [<c00a6e2c>] 
(axfs_copy_metadata+0xf8/0x1e0)
[    1.180000] [<c00a6d34>] (axfs_copy_metadata+0x0/0x1e0) from 
[<c00a73b0>] (axfs_fill_super+0x84/0x9b0)
[    1.180000] [<c00a732c>] (axfs_fill_super+0x0/0x9b0) from 
[<c00a8dd8>] (get_sb_mtd_aux+0x54/0xb8)
[    1.180000] [<c00a8d84>] (get_sb_mtd_aux+0x0/0xb8) from [<c00a8e9c>] 
(get_sb_mtd_nr+0x60/0x70)
[    1.180000]  r8 = 00008000  r7 = 00008000  r6 = C01F8918  r5 = C0314400
[    1.180000]  r4 = C03B2000
[    1.180000] [<c00a8e3c>] (get_sb_mtd_nr+0x0/0x70) from [<c00a91ac>] 
(axfs_get_sb_mtd+0x1a0/0x23c)
[    1.180000]  r7 = C0314400  r6 = C03B2000  r5 = C03B2000  r4 = 00008000
[    1.180000] [<c00a900c>] (axfs_get_sb_mtd+0x0/0x23c) from 
[<c00a6c70>] (axfs_get_sb+0x258/0x2f0)
[    1.180000] [<c00a6a18>] (axfs_get_sb+0x0/0x2f0) from [<c0067df8>] 
(vfs_kern_mount+0x58/0x94)
[    1.180000] [<c0067da0>] (vfs_kern_mount+0x0/0x94) from [<c0067e90>] 
(do_kern_mount+0x3c/0x50)
[    1.180000]  r8 = 00008000  r7 = C03B2000  r6 = 00000000  r5 = FFFFFFED
[    1.180000]  r4 = C01F8918
[    1.180000] [<c0067e54>] (do_kern_mount+0x0/0x50) from [<c007ca90>] 
(do_mount+0x540/0x5ac)
[    1.180000]  r6 = 00000000  r5 = 00000000  r4 = 00000000
[    1.180000] [<c007c550>] (do_mount+0x0/0x5ac) from [<c007cb88>] 
(sys_mount+0x8c/0xd4)
[    1.180000] [<c007cafc>] (sys_mount+0x0/0xd4) from [<c0008ca8>] 
(do_mount_root+0x28/0xb4)
[    1.180000]  r7 = C034D000  r6 = C02D6000  r5 = C034D005  r4 = C034D000
[    1.180000] [<c0008c80>] (do_mount_root+0x0/0xb4) from [<c0008e24>] 
(mount_block_root+0xf0/0x208)
[    1.180000]  r4 = C034D000
[    1.180000] [<c0008d34>] (mount_block_root+0x0/0x208) from 
[<c00090c4>] (prepare_namespace+0x88/0x114)
[    1.180000] [<c000903c>] (prepare_namespace+0x0/0x114) from 
[<c0008880>] (init+0x17c/0x1cc)
[    1.180000]  r5 = C0016924  r4 = C02081D8
[    1.180000] [<c0008704>] (init+0x0/0x1cc) from [<c002c3fc>] 
(do_exit+0x0/0x7b4)
[    1.180000]  r7 = 00000000  r6 = 00000000  r5 = 00000000  r4 = 00000000
[    1.180000] Code: ba000002 f5d1f03c f5d1f05c f5d1f07c (e8b151f8)
[    1.770000] Kernel panic - not syncing: Attempted to kill init!
</log>