4KiB pagesize and UBIFS

Kyungmin Park kmpark at infradead.org
Tue Aug 4 02:28:23 EDT 2009


Hi,

I create the empty ubifs as datafs and then try to mount it
Of course I turn on all debug message at ubifs.

As below it try to read unaligned read (not seen at here, driver
handle it) and linefetch error finally.

I guest 4KiB pagesize don't support on ubifs.

How can I handle it?

Thank you,
Kyungmin Park

# mount -t ubifs ubi0!datafs /mnt
[   12.400000] UBIFS DBG (pid 1039): ubifs_get_sb: name ubi0!datafs, flags 0x800
0
[   12.410000] UBIFS DBG (pid 1039): ubifs_get_sb: opened ubi0_20
[   12.410000] UBIFS DBG (pid 1039): ubifs_read_node: LEB 0:0, superblock node,
length 4096
[   12.420000] UBIFS DBG (pid 1039): ubifs_start_scan: scan LEB 1:0
[   12.430000] UBIFS DBG (pid 1040): ubifs_bg_thread: background thread "ubifs_b
gt0_20" started, PID 1040
[   12.470000] UBIFS DBG (pid 1039): ubifs_scan: look at LEB 1:0 (253952 bytes l
eft)
[   12.470000] UBIFS DBG (pid 1039): ubifs_scan_a_node: scanning master node
[   12.480000] UBIFS DBG (pid 1039): ubifs_scan: look at LEB 1:512 (253440 bytes
 left)
[   12.490000] UBIFS DBG (pid 1039): ubifs_scan_a_node: scanning padding node
[   12.490000] UBIFS DBG (pid 1039): ubifs_scan_a_node: 3556 bytes padded, offse
t now 4096
[   12.500000] UBIFS DBG (pid 1039): ubifs_scan: look at LEB 1:4096 (249856 byte
s left)
[   12.510000] UBIFS DBG (pid 1039): ubifs_scan_a_node: scanning master node
[   12.520000] UBIFS DBG (pid 1039): ubifs_scan: look at LEB 1:4608 (249344 byte
s left)
[   12.520000] UBIFS DBG (pid 1039): ubifs_scan_a_node: scanning padding node
[   12.530000] UBIFS DBG (pid 1039): ubifs_scan_a_node: 3556 bytes padded, offse
t now 8192
[   12.540000] UBIFS DBG (pid 1039): ubifs_scan: look at LEB 1:8192 (245760 byte
s left)
[   12.550000] UBIFS DBG (pid 1039): ubifs_scan_a_node: hit empty space
[   12.550000] UBIFS DBG (pid 1039): ubifs_end_scan: stop scanning LEB 1 at offs
et 8192
[   12.560000] UBIFS DBG (pid 1039): ubifs_start_scan: scan LEB 2:0
[   12.600000] UBIFS DBG (pid 1039): ubifs_scan: look at LEB 2:0 (253952 bytes l
eft)
[   12.600000] UBIFS DBG (pid 1039): ubifs_scan_a_node: scanning master node
[   12.610000] UBIFS DBG (pid 1039): ubifs_scan: look at LEB 2:512 (253440 bytes
 left)
[   12.620000] UBIFS DBG (pid 1039): ubifs_scan_a_node: scanning padding node
[   12.620000] UBIFS DBG (pid 1039): ubifs_scan_a_node: 3556 bytes padded, offse
t now 4096
[   12.630000] UBIFS DBG (pid 1039): ubifs_scan: look at LEB 2:4096 (249856 byte
s left)
[   12.640000] UBIFS DBG (pid 1039): ubifs_scan_a_node: scanning master node
[   12.650000] UBIFS DBG (pid 1039): ubifs_scan: look at LEB 2:4608 (249344 byte
s left)
[   12.650000] UBIFS DBG (pid 1039): ubifs_scan_a_node: scanning padding node
[   12.660000] UBIFS DBG (pid 1039): ubifs_scan_a_node: 3556 bytes padded, offse
t now 8192
[   12.670000] UBIFS DBG (pid 1039): ubifs_scan: look at LEB 2:8192 (245760 byte
s left)
[   12.680000] UBIFS DBG (pid 1039): ubifs_scan_a_node: hit empty space
[   12.680000] UBIFS DBG (pid 1039): ubifs_end_scan: stop scanning LEB 2 at offs
et 8192
[   12.690000] UBIFS DBG (pid 1039): ubifs_read_node: LEB 12:0, indexing node, l
ength 48
[   12.700000] UBIFS: recovery needed
[   12.700000] UBIFS DBG (pid 1039): ubifs_recover_inl_heads: checking index hea
d at 12:4096
[   12.710000] UBIFS DBG (pid 1039): ubifs_recover_inl_heads: checking LPT head
at 7:4096
[   12.720000] UBIFS DBG (pid 1039): lpt_init_rd: space_bits 15
[   12.730000] UBIFS DBG (pid 1039): lpt_init_rd: lpt_lnum_bits 2
[   12.730000] UBIFS DBG (pid 1039): lpt_init_rd: lpt_offs_bits 18
[   12.740000] UBIFS DBG (pid 1039): lpt_init_rd: lpt_spc_bits 18
[   12.750000] UBIFS DBG (pid 1039): lpt_init_rd: pcnt_bits 10
[   12.750000] UBIFS DBG (pid 1039): lpt_init_rd: lnum_bits 12
[   12.760000] UBIFS DBG (pid 1039): lpt_init_rd: pnode_sz 18
[   12.760000] UBIFS DBG (pid 1039): lpt_init_rd: nnode_sz 13
[   12.770000] UBIFS DBG (pid 1039): lpt_init_rd: ltab_sz 12
[   12.770000] UBIFS DBG (pid 1039): lpt_init_rd: lsave_sz 387
[   12.780000] UBIFS DBG (pid 1039): lpt_init_rd: lsave_cnt 256
[   12.790000] UBIFS DBG (pid 1039): lpt_init_rd: lpt_hght 5
[   12.790000] UBIFS DBG (pid 1039): lpt_init_rd: big_lpt 0
[   12.800000] UBIFS DBG (pid 1039): lpt_init_rd: LPT root is at 7:70
[   12.800000] UBIFS DBG (pid 1039): lpt_init_rd: LPT head is at 7:4096
[   12.810000] UBIFS DBG (pid 1039): lpt_init_rd: LPT ltab is at 7:83
[   12.810000] UBIFS DBG (pid 1039): ubifs_read_node: LEB 12:0, indexing node, l
ength 48
[   12.820000] UBIFS DBG (pid 1039): read_znode: LEB 12:0, level 0, 1 branch
[   12.830000] UBIFS DBG (pid 1039): ubifs_add_lpt_dirt: LEB 7 add 13 to 4001
[   12.840000] UBIFS DBG (pid 1039): ubifs_add_lpt_dirt: LEB 7 add 12 to 4014
[   12.850000] UBIFS DBG (pid 1039): ubifs_add_lpt_dirt: LEB 7 add 13 to 4026
[   12.860000] UBIFS DBG (pid 1039): ubifs_add_lpt_dirt: LEB 7 add 13 to 4039
[   12.870000] UBIFS DBG (pid 1039): ubifs_add_lpt_dirt: LEB 7 add 13 to 4052
[   12.870000] UBIFS DBG (pid 1039): ubifs_add_lpt_dirt: LEB 7 add 13 to 4065
[   12.880000] Unhandled fault: external abort on non-linefetch (0x1008) at 0xc5
880410
[   12.890000] Internal error: : 1008 [#1]
[   12.890000] Modules linked in:
[   12.890000] CPU: 0    Not tainted  (2.6.31-rc4-g6a8aab3-dirty #768)
[   12.890000] PC is at memcpy+0xc4/0x330
[   12.890000] LR is at 0xf80103f5
[   12.890000] pc : [<c01610e4>]    lr : [<f80103f5>]    psr: 60000013
[   12.890000] sp : c43e9acc  ip : 00000010  fp : 00000000
[   12.890000] r10: c5880400  r9 : c4058da8  r8 : c41736a0
[   12.890000] r7 : c41736a0  r6 : 00000012  r5 : 00000000  r4 : 00000000
[   12.890000] r3 : c5880400  r2 : 00000000  r1 : c5880410  r0 : c41736b0
[   12.890000] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   12.890000] Control: 10c5387d  Table: 244a4019  DAC: 00000015
[   12.890000] Process mount (pid: 1039, stack limit = 0xc43e82e8)



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