Hi,
Iam using unionfs-1.1.5 and 2.6.12 kernel and very frequently I
have the following oops message. I have the same backtrace when other
standard applications crashed. The only change I made while compiling
unionfs is enabling "EXTRA_CFLAGS+=-DUNIONFS_DELETE_ALL" option. Is
there a way to debug this issue ?
CPU: 0
PC is at __bug+0x48/0x5c
LR is at 0x1
pc : [<c0088c68>] lr : [<00000001>] Not tainted
sp : c1ebdcd8 ip : 60000093 fp : c1ebdcec
r10: c287dcc8 r9 : c1eb8800 r8 : c0068740
r7 : 00000000 r6 : c1e10c40 r5 : c1e54e60 r4 : 00000000
r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : 00000001
Flags: nZCv IRQs on FIQs on Mode SVC_32 Segment user
Control: A005317F Table: 0237C000 DAC: 00000015
Process nmbd (pid: 1925, stack limit = 0xc1ebc1a0)
Stack: (0xc1ebdcd8 to 0xc1ebe000)
dcc0: c0069fb8 c23d1d18
dce0: c1ebdda4 c1ebdcf0 c01d6ea8 c0088c30 c0069fb8 c0068740 00000000 00000000
dd00: 00000000 c1ebdd10 c00403ac c0024064 c2a610c8 c1ebdd38 c2a610c8 c2a610c8
dd20: c05d2400 c004b7a0 00000000 c1ebc000 60000093 c033cadc c1e10c40 c05d2000
dd40: c1eb8800 c287dcc8 c1ebdd74 c1ebdd58 c00225c0 c00a2fc0 00000000 c1ebdd68
dd60: c1ebc000 80000013 c1ebdd8c c1ebdd78 c008695c c0022590 c23d1d18 c00687c4
dd80: c1ebddfc c23d1d18 c00687c4 c033cadc c1e10c40 c05d2000 c1ebddfc c1ebdda8
dda0: c019f7c8 c01d6100 c0068720 c033cadc c004c250 c00687c4 0000002d 00000000
ddc0: c1ebdde4 c1ebddd0 00000000 00000000 c23d1d18 c2e9abb8 00000000 c2e9ab88
dde0: c1e10c40 c2e9ab88 c1eb8800 c287dcc8 c1ebdeac c1ebde00 c0192440 c019f68c
de00: c006839c c033cadc c004c164 c0068370 00000262 00000000 c033cadc c033cadc
de20: 00000006 00000000 c2c98e40 00000000 c1ebde9c 00000000 00000000 c1ebdf28
de40: 000081a4 c2e9abb8 00000277 c00681a4 00000000 00000000 00000001 c2e9ab88
de60: 452a0a63 00000000 452a0a63 00000000 452a0a63 00000000 000001a4 c2e9abb8
de80: c1e10c40 00000000 000001a4 c2e9abb8 c1e10c40 c1ebdf28 c1ebc000 c1e1c000
dea0: c1ebded4 c1ebdeb0 c00f1d5c c018fdb0 ffffffeb c1e10c40 c1ebdf28 c2fac998
dec0: 00000005 00020442 c1ebdf24 c1ebded8 c00f2118 c00f1cd4 c2faccc8 c2fac998
dee0: c1ebdf30 00000000 0000000a 000001a4 c04420c0 c1e10c40 c2fac998 00020441
df00: 000001a4 0000000d 00000005 c004308c c1ebc000 c1e1c000 c1ebdf7c c1ebdf28
df20: c00e1fe0 c00f1f6c c2fac998 c04420c0 583656c4 00000008 c1e1c00f 00000300
df40: 00000000 00000000 c1ebc000 c1e1c000 c1ebdf7c c1ebdf60 c00e2060 c00fd624
df60: 00020442 000001a4 c1e1c000 00020441 c1ebdfa4 c1ebdf80 c00e2238 c00e1fc0
df80: 000001a4 00000441 2a0ecb48 00000005 c004308c 00900005 00000000 c1ebdfa8
dfa0: c0042900 c00e2200 000001a4 c00877d8 2a0ecb48 00020441 000001a4 00000000
dfc0: 000001a4 00000441 2a0ecb48 2a0ecb48 000001a4 be995d28 2a0e801c 00000012
dfe0: 2a0e81e8 be995ce0 401346b0 401346cc 60000010 2a0ecb48 00000000 00000000
Backtrace:
[<c0088c20>] (__bug+0x0/0x5c) from [<c01d6ea8>]
(__fist_print_dentry+0xdb8/0xfec)
r4 = C23D1D18
[<c01d60f0>] (__fist_print_dentry+0x0/0xfec) from [<c019f7c8>]
(unionfs_interpose+0x14c/0x1b90)
r8 = C05D2000 r7 = C1E10C40 r6 = C033CADC r5 = C00687C4
r4 = C23D1D18
[<c019f67c>] (unionfs_interpose+0x0/0x1b90) from [<c0192440>]
(unionfs_create+0x26a0/0x3120)
[<c018fda0>] (unionfs_create+0x0/0x3120) from [<c00f1d5c>]
(vfs_create+0x98/0xc0)
[<c00f1cc4>] (vfs_create+0x0/0xc0) from [<c00f2118>] (open_namei+0x1bc/0x7ac)
r8 = 00020442 r7 = 00000005 r6 = C2FAC998 r5 = C1EBDF28
r4 = C1E10C40
[<c00f1f5c>] (open_namei+0x0/0x7ac) from [<c00e1fe0>] (filp_open+0x30/0x50)
[<c00e1fb0>] (filp_open+0x0/0x50) from [<c00e2238>] (sys_open+0x48/0xd8)
r4 = 00020441
[<c00e21f0>] (sys_open+0x0/0xd8) from [<c0042900>] (ret_fast_syscall+0x0/0x2c)
Code: eb0079e6 e59f0014 eb0079e4 e3a03000 (e5833000)
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