UBIFS power down recovery problem

Qiang Yu yuq825 at gmail.com
Thu Aug 8 05:00:49 EDT 2013


Hi lists,

I'm now testing if UBIFS can survive after power down. After tens of
thousands of boot->power cut->boot test circle, the system finally
can't boot up.

I can't understand:

1. How do some ECC uncorrectable pages appear? According to UBI doc,
it will be wrapped to other PEB when one LEB read report UNCLEAN.
2. How does the "0xef" appear? I dumped out the page, it seems it is
protected by the ECC.

I find UBIFS has the unstable bit problem:
http://www.linux-mtd.infradead.org/doc/ubifs.html#L_unstable_bits
Does this cause the problem?

Regards,
Qiang

My hardware:
Allwinner A10 NAND flash controller with NAND flash chip SAMSUNG K9F1G08U0D

Error log (start from UBI):
UBI: attaching mtd3 to ubi0
UBI: scanning is finished
UBI warning: print_rsvd_warning: cannot reserve enough PEBs for bad
PEB handling, reserved 7, need 15
UBI: attached mtd3 (name "rootfs", size 92 MiB) to ubi0
UBI: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
UBI: VID header offset: 2048 (aligned 2048), data offset: 4096
UBI: good PEBs: 733, bad PEBs: 5, corrupted PEBs: 0
UBI: user volume: 2, internal volumes: 1, max. volumes count: 128
UBI: max/mean erase counter: 1155/345, WL threshold: 4096, image
sequence number: 0
UBI: available PEBs: 0, total reserved PEBs: 733, PEBs reserved for
bad PEB handling: 7
UBI: background thread "ubi_bgt0d" started, PID 28
UBIFS: background thread "ubifs_bgt0_0" started, PID 29
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
UBI warning: ubi_io_read: error -74 (ECC error) while reading 126976
bytes from PEB 210:4096, read only 126976 bytes, retry
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
UBI warning: ubi_io_read: error -74 (ECC error) while reading 126976
bytes from PEB 210:4096, read only 126976 bytes, retry
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
UBI warning: ubi_io_read: error -74 (ECC error) while reading 126976
bytes from PEB 210:4096, read only 126976 bytes, retry
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
UBI error: ubi_io_read: error -74 (ECC error) while reading 126976
bytes from PEB 210:4096, read 126976 bytes
Backtrace:
[<c0010f9c>] (dump_backtrace+0x0/0x110) from [<c028bfb4>] (dump_stack+0x18/0x1c)
 r6:0001f000 r5:ffffffb6 r4:d99c9000 r3:c03968c0
[<c028bf9c>] (dump_stack+0x0/0x1c) from [<c01c7c34>] (ubi_io_read+0x1f0/0x2cc)
[<c01c7a44>] (ubi_io_read+0x0/0x2cc) from [<c01c5c24>]
(ubi_eba_read_leb+0x274/0x370)
[<c01c59b0>] (ubi_eba_read_leb+0x0/0x370) from [<c01c50e4>]
(ubi_leb_read+0xec/0x140)
[<c01c4ff8>] (ubi_leb_read+0x0/0x140) from [<c0100500>]
(ubifs_leb_read+0x30/0x90)
 r8:00000001 r7:0001f000 r6:00000001 r5:00000000 r4:d99ddec0
[<c01004d0>] (ubifs_leb_read+0x0/0x90) from [<c0107578>]
(ubifs_start_scan+0x84/0x104)
 r7:d99cd000 r6:00000000 r5:dc9bf000 r4:d99ddec0
[<c01074f4>] (ubifs_start_scan+0x0/0x104) from [<c0107874>]
(ubifs_scan+0x28/0x2ec)
 r8:d99cd000 r7:d99dd880 r6:dc9bf000 r5:0001f000 r4:00000000
[<c010784c>] (ubifs_scan+0x0/0x2ec) from [<c01069f4>]
(ubifs_read_master+0x4c/0x8bc)
[<c01069a8>] (ubifs_read_master+0x0/0x8bc) from [<c00fe7e4>]
(ubifs_mount+0xd68/0x1504)
[<c00fda7c>] (ubifs_mount+0x0/0x1504) from [<c008ca00>] (mount_fs+0x1c/0xc0)
[<c008c9e4>] (mount_fs+0x0/0xc0) from [<c00a0a88>] (vfs_kern_mount+0x54/0xbc)
 r6:00008000 r5:d99dd800 r4:d9969300
[<c00a0a34>] (vfs_kern_mount+0x0/0xbc) from [<c00a0dbc>]
(do_kern_mount+0x3c/0xd8)
 r8:00008000 r7:d99dd800 r6:00000000 r5:d99dd7c0 r4:c039f508
r3:00000000
[<c00a0d80>] (do_kern_mount+0x0/0xd8) from [<c00a26d0>] (do_mount+0x610/0x68c)
 r8:00000000 r7:00008000 r6:00008000 r5:d99dd800 r4:00000020
r3:00000000
[<c00a20c0>] (do_mount+0x0/0x68c) from [<c00a27f8>] (sys_mount+0x8c/0xcc)
[<c00a276c>] (sys_mount+0x0/0xcc) from [<c0369cf4>]
(mount_block_root+0xf0/0x154)
 r7:c038283c r6:00008000 r5:d99cb000 r4:d99cb000
[<c0369c04>] (mount_block_root+0x0/0x154) from [<c036a304>]
(prepare_namespace+0x3b4/0x508)
[<c0369f50>] (prepare_namespace+0x0/0x508) from [<c03698f0>]
(kernel_init+0x16c/0x1a8)
 r7:c03bca80 r6:c0382814 r5:c0382834 r4:00000007
[<c0369784>] (kernel_init+0x0/0x1a8) from [<c002d528>] (do_exit+0x0/0x660)
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
UBI warning: ubi_io_read: error -74 (ECC error) while reading 126976
bytes from PEB 211:4096, read only 126976 bytes, retry
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
UBI warning: ubi_io_read: error -74 (ECC error) while reading 126976
bytes from PEB 211:4096, read only 126976 bytes, retry
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
UBI warning: ubi_io_read: error -74 (ECC error) while reading 126976
bytes from PEB 211:4096, read only 126976 bytes, retry
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
[MTD][NAND][SUNXI]: ECC too many error at 0
UBI error: ubi_io_read: error -74 (ECC error) while reading 126976
bytes from PEB 211:4096, read 126976 bytes
Backtrace:
[<c0010f9c>] (dump_backtrace+0x0/0x110) from [<c028bfb4>] (dump_stack+0x18/0x1c)
 r6:0001f000 r5:ffffffb6 r4:d99c9000 r3:c03968c0
[<c028bf9c>] (dump_stack+0x0/0x1c) from [<c01c7c34>] (ubi_io_read+0x1f0/0x2cc)
[<c01c7a44>] (ubi_io_read+0x0/0x2cc) from [<c01c5c24>]
(ubi_eba_read_leb+0x274/0x370)
[<c01c59b0>] (ubi_eba_read_leb+0x0/0x370) from [<c01c50e4>]
(ubi_leb_read+0xec/0x140)
[<c01c4ff8>] (ubi_leb_read+0x0/0x140) from [<c0100500>]
(ubifs_leb_read+0x30/0x90)
 r8:00000002 r7:0001f000 r6:00000002 r5:00000000 r4:d9a247c0
[<c01004d0>] (ubifs_leb_read+0x0/0x90) from [<c0107578>]
(ubifs_start_scan+0x84/0x104)
 r7:d99cd000 r6:00000000 r5:dc9bf000 r4:d9a247c0
[<c01074f4>] (ubifs_start_scan+0x0/0x104) from [<c0107874>]
(ubifs_scan+0x28/0x2ec)
 r8:d99cd000 r7:d9a247c0 r6:dc9bf000 r5:0001f000 r4:00000000
[<c010784c>] (ubifs_scan+0x0/0x2ec) from [<c0106a5c>]
(ubifs_read_master+0xb4/0x8bc)
[<c01069a8>] (ubifs_read_master+0x0/0x8bc) from [<c00fe7e4>]
(ubifs_mount+0xd68/0x1504)
[<c00fda7c>] (ubifs_mount+0x0/0x1504) from [<c008ca00>] (mount_fs+0x1c/0xc0)
[<c008c9e4>] (mount_fs+0x0/0xc0) from [<c00a0a88>] (vfs_kern_mount+0x54/0xbc)
 r6:00008000 r5:d99dd800 r4:d9969300
[<c00a0a34>] (vfs_kern_mount+0x0/0xbc) from [<c00a0dbc>]
(do_kern_mount+0x3c/0xd8)
 r8:00008000 r7:d99dd800 r6:00000000 r5:d99dd7c0 r4:c039f508
r3:00000000
[<c00a0d80>] (do_kern_mount+0x0/0xd8) from [<c00a26d0>] (do_mount+0x610/0x68c)
 r8:00000000 r7:00008000 r6:00008000 r5:d99dd800 r4:00000020
r3:00000000
[<c00a20c0>] (do_mount+0x0/0x68c) from [<c00a27f8>] (sys_mount+0x8c/0xcc)
[<c00a276c>] (sys_mount+0x0/0xcc) from [<c0369cf4>]
(mount_block_root+0xf0/0x154)
 r7:c038283c r6:00008000 r5:d99cb000 r4:d99cb000
[<c0369c04>] (mount_block_root+0x0/0x154) from [<c036a304>]
(prepare_namespace+0x3b4/0x508)
[<c0369f50>] (prepare_namespace+0x0/0x508) from [<c03698f0>]
(kernel_init+0x16c/0x1a8)
 r7:c03bca80 r6:c0382814 r5:c0382834 r4:00000007
[<c0369784>] (kernel_init+0x0/0x1a8) from [<c002d528>] (do_exit+0x0/0x660)
UBIFS: recovery needed
UBIFS error (pid 1): ubifs_recover_leb: corrupt empty space LEB
264:12288, corruption starts at 11
UBIFS error (pid 1): ubifs_scanned_corruption: corruption at LEB 264:12299
UBIFS error (pid 1): ubifs_scanned_corruption: first 8192 bytes from
LEB 264:12299
00000000: ffffffef ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000020: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000040: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000060: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000080: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000000a0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000000c0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000000e0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000100: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000120: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000140: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000160: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000180: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000001a0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000001c0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000001e0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000200: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000220: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000240: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000260: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000280: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000002a0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000002c0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000002e0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000300: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000320: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000340: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000360: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000380: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000003a0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000003c0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000003e0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000400: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000420: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000440: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000460: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000480: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000004a0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000004c0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000004e0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000500: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000520: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000540: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000560: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000580: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000005a0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000005c0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000005e0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000600: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000620: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000640: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000660: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000680: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000006a0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000006c0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000006e0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000700: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000720: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000740: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000760: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000780: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000007a0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000007c0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000007e0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000800: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000820: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000840: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000860: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000880: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000008a0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000008c0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000008e0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000900: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000920: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000940: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000960: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000980: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000009a0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000009c0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
000009e0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000a00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000a20: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000a40: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000a60: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000a80: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000aa0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000ac0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000ae0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000b00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000b20: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000b40: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000b60: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000b80: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000ba0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000bc0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000be0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000c00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000c20: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000c40: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000c60: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000c80: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000ca0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000cc0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000ce0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00000d00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
00000e00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
00000e80: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
00001a00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001a20: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001a40: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001a60: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001a80: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001aa0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001ac0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
00001b00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001b20: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001b40: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001b60: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001b80: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
00001c00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
00001c40: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001c60: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001c80: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001ca0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001cc0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
00001d00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001d20: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
00001d60: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001d80: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
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ffffffff ffffffff  ................................
00001dc0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001de0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001e00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001e20: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001e40: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001e60: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001e80: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001ea0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001ec0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001ee0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001f00: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001f20: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001f40: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001f60: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001f80: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001fa0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001fc0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
00001fe0: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
ffffffff ffffffff  ................................
UBIFS error (pid 1): ubifs_recover_leb: LEB 264 scanning failed
UBIFS: background thread "ubifs_bgt0_0" stops
devtmpfs: mounted
Freeing init memory: 124K
Failed to execute /linuxrc.  Attempting defaults...
Kernel panic - not syncing: No init found.  Try passing init= option
to kernel. See Linux Documentation/init.txt for guidance.
Backtrace:
[<c0010f9c>] (dump_backtrace+0x0/0x110) from [<c028bfb4>] (dump_stack+0x18/0x1c)
 r6:c0382814 r5:c0382834 r4:c03bca80 r3:00000001
[<c028bf9c>] (dump_stack+0x0/0x1c) from [<c028c184>] (panic+0x7c/0x1b4)
[<c028c108>] (panic+0x0/0x1b4) from [<c028bf78>] (init_post+0xa8/0xcc)
 r3:d9836000 r2:d9853d00 r1:c071da60 r0:c0310d7e
 r7:c03bca80
[<c028bed0>] (init_post+0x0/0xcc) from [<c03698f4>] (kernel_init+0x170/0x1a8)
 r4:00000007 r3:d9401080
[<c0369784>] (kernel_init+0x0/0x1a8) from [<c002d528>] (do_exit+0x0/0x660)



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