[meta-freescale] Unable to handle kernel NULL pointer dereference at virtual address 0000008c
Ashwin Kirpalani
akcooper8 at gmail.com
Sun Jul 20 09:26:30 PDT 2014
I have a RM3 i.mx6 board from BlueChipTechnology running 3.0.35 kernel and
I encounter kernel crashes after about 10 minutes of activity. Here is one
example of a log. Could anyone please advise what this could be and how I
would go about debugging a problem like this? I have JTAG access to the
board.
The crash happens every time after about 10 minutes. Is there some watchdog
timer problem?
Unable to handle kernel NULL pointer dereference at virtual address 0000008c
pgd = d2074000
[0000008c] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP
Modules linked in: [last unloaded: wl12xx_sdio]
CPU: 2 Not tainted (3.0.35-gde33f0b-dirty #7)
PC is at attach_task_by_pid+0x20/0x1e0
LR is at hrtimer_try_to_cancel+0x9c/0x130
pc : [<c00ce644>] lr : [<c00aedf8>] psr: 600b0013
sp : d2657ee8 ip : c0a267d0 fp : 00000006
r10: fc239343 r9 : 00000000 r8 : 00000000
r7 : 670c4cf0 r6 : 00000000 r5 : 00000080 r4 : 670c4cf0
r3 : 00000000 r2 : 00000000 r1 : a00b0013 r0 : ffffff92
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 10c53c7d Table: 2207404a DAC: 00000015
PC: 0xc00ce5c4:
e5c4 eaffffcb e3a03000 e1a08000 e58d3004 eafffef9 e1a0c004 e59d9004
e1a0000c
e5e4 e1a0400a e59da00c ebfff960 eafffff0 e59f0024 e300180e ebfe0673
e59f0018
e604 e3001807 ebfe0670 e3a0b000 eaffff69 e59f0004 e3001863 ebfe066b
c08fc448
e624 e92d45f8 e1a0100d e3c15d7f e1a07003 e3c5503f e1a04000 e1a06002
e5dd8020
e644 e595300c e593a2fc ebffed2d e3500000 03e07012 0a00001b e1963007
1a00002a
e664 e3580000 1595300c 0595500c 15935244 e2856008 e1963f9f e2833001
e1862f93
e684 e3320000 1afffffa e3580000 1a00000f e1a00004 e1a01005 ebfffdd5
e1a07000
e6a4 f57ff05f e1963f9f e2433001 e1862f93 e3320000 1afffffa f57ff05f
e3530000
LR: 0xc00aed78:
ed78 13e05000 e1a07000 1a000018 e2125001 0a000016 e59f30ec e5931004
e3510000
ed98 01a0300d 03c36d7f 03c6603f 1a000016 e596e014 e3a03000 e59fc0cc
e1a00004
edb8 e5843030 e1a01007 e5973000 e2022002 e79ce10e e3a05001 e59fc0b0
e08cc00e
edd8 e06cc003 e27c3000 e0a3300c ebfffdcf e5943024 e59d1004 e5930000
eb193a85
edf8 e1a00005 e28dd00c e8bd85f0 e1a0200d e3c26d7f e3c6603f e5962004
e2822001
ee18 e5862004 e5938010 e3580000 0a00000b e5983000 e288a008 e1a05008
e5950004
ee38 e1a01004 e2855008 e12fff33 e0683005 e08a3003 e5133008 e3530000
1afffff6
ee58 e5963004 e2433001 e5863004 e5963000 e3130002 05942028 0affffcc
eb1932f2
SP: 0xd2657e68:
7e68 00000000 ffffffff d2657e71 c14655b8 00000000 00000000 e17621b6
00000199
7e88 e1755e66 0000040f 00000005 00000000 670c4cf0 c004c2d0 ffffff92
a00b0013
7ea8 00000000 00000000 670c4cf0 00000080 00000000 670c4cf0 00000000
00000000
7ec8 fc239343 00000006 c0a267d0 d2657ee8 c00aedf8 c00ce644 600b0013
ffffffff
7ee8 ffffffff 00000000 00000000 000c0000 00000002 c02317d0 00000000
00000000
7f08 00000000 00000000 00001084 ffffffff 1948b723 00000000 00158135
00000000
7f28 00001084 00000000 fffffff7 c0a120c0 6c054fff 00000000 00000080
00000000
7f48 670c4cf0 00000000 d2656000 fc239343 00000006 c00befec 670c4cf0
00000000
IP: 0xc0a26750:
6750 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
6770 00000000 00000000 00000000 00000000 00000000 00000000 00000000
00000000
6790 00000064 00008000 0000000f c1474020 00000008 00000004 c1474000
c146c000
67b0 c1455000 0000002c c145c000 c1464000 00000001 00001000 00000000
00000003
67d0 01411000 01419000 01421000 01429000 00018000 00000002 00028ffb
0004ffff
67f0 00000001 00000032 0000fffa 00000001 d6212ae0 d6212a80 00000000
d601bf20
6810 0000000f d601f580 d6212a20 d6000a20 00000010 c1476120 0000ffff
00000064
6830 d6000a80 0000000f c14b6120 00007fff d601bf80 00100000 d601d000
0000000f
R10: 0xfc2392c3:
92c0 ******** ******** ******** ******** ******** ******** ********
********
92e0 ******** ******** ******** ******** ******** ******** ********
********
9300 ******** ******** ******** ******** ******** ******** ********
********
9320 ******** ******** ******** ******** ******** ******** ********
********
9340 ******** ******** ******** ******** ******** ******** ********
********
9360 ******** ******** ******** ******** ******** ******** ********
********
9380 ******** ******** ******** ******** ******** ******** ********
********
93a0 ******** ******** ******** ******** ******** ******** ********
********
93c0 ******** ******** ******** ********
init: starting 'uim'
******** ******** ******** ********
Process watchdog (pid: 2887, stack limit = 0xd26562f0)
init: waitpid returned pid 3809, status = 0000ff00
init: process 'uim', pid 3809 exited
init: process 'uim' killing any children in process group
Stack: (0xd2657ee8 to 0xd2658000)
7ee0: ffffffff 00000000 00000000 000c0000 00000002
c02317d0
7f00: 00000000 00000000 00000000 00000000 00001084 ffffffff 1948b723
00000000
7f20: 00158135 00000000 00001084 00000000 fffffff7 c0a120c0 6c054fff
00000000
7f40: 00000080 00000000 670c4cf0 00000000 d2656000 fc239343 00000006
c00befec
7f60: 670c4cf0 00000000 ffffffff 00000001 e1755e66 00000199 e1755e66
00000199
7f80: 0000001d 3b9ab143 670c4cf0 670c4ce0 00000000 000000f0 c004ca84
00000000
7fa0: 41ea7398 c004c900 670c4cf0 670c4ce0 670c4cf0 00000080 00000000
77713d40
7fc0: 670c4cf0 670c4ce0 00000000 000000f0 00000000 00000000 00000000
41ea7398
7fe0: 00000001 77713d20 401b26cc 401c0614 600f0010 670c4cf0 28ffe821
28ffec21
[<c00ce644>] (attach_task_by_pid+0x20/0x1e0) from [<00000000>] ( (null))
Code: e3c5503f e1a04000 e1a06002 e5dd8020 (e595300c)
---[ end trace db035b0b88b29047 ]---
Kernel panic - not syncing: Fatal exception
[<c0053fc4>] (unwind_backtrace+0x0/0x138) from [<c06f6bb0>]
(panic+0x74/0x194)
[<c06f6bb0>] (panic+0x74/0x194) from [<c0050454>] (die+0x218/0x284)
[<c0050454>] (die+0x218/0x284) from [<c06f602c>]
(__do_kernel_fault.part.3+0x54/0x74)
[<c06f602c>] (__do_kernel_fault.part.3+0x54/0x74) from [<c0057d70>]
(do_page_fault+0x2cc/0x334)
[<c0057d70>] (do_page_fault+0x2cc/0x334) from [<c0046410>]
(do_DataAbort+0x34/0x9c)
[<c0046410>] (do_DataAbort+0x34/0x9c) from [<c004c2d0>]
(__dabt_svc+0x70/0xa0)
Exception stack(0xd2657ea0 to 0xd2657ee8)
7ea0: ffffff92 a00b0013 00000000 00000000 670c4cf0 00000080 00000000
670c4cf0
7ec0: 00000000 00000000 fc239343 00000006 c0a267d0 d2657ee8 c00aedf8
c00ce644
7ee0: 600b0013 ffffffff
[<c004c2d0>] (__dabt_svc+0x70/0xa0) from [<c00ce644>]
(attach_task_by_pid+0x20/0x1e0)
[<c00ce644>] (attach_task_by_pid+0x20/0x1e0) from [<00000000>] ( (null))
CPU1: stopping
[<c0053fc4>] (unwind_backtrace+0x0/0x138) from [<c00463a8>]
(do_IPI+0x1d4/0x208)
[<c00463a8>] (do_IPI+0x1d4/0x208) from [<c004c34c>] (__irq_svc+0x4c/0xe8)
Exception stack(0xd6067dc8 to 0xd6067e10)
7dc0: c1466320 00000000 200e0113 200e0113 00000000
00000002
7de0: c1466354 0000021d 00000000 c14663a0 00000000 d6067eb4 0000021e
d6067e10
7e00: c0083af4 c0083df8 400e0113 ffffffff
[<c004c34c>] (__irq_svc+0x4c/0xe8) from [<c0083df8>]
(load_balance+0x818/0x8f4)
[<c0083df8>] (load_balance+0x818/0x8f4) from [<c0086ba0>]
(rebalance_domains+0xa4/0x190)
[<c0086ba0>] (rebalance_domains+0xa4/0x190) from [<c0086cd0>]
(run_rebalance_domains+0x44/0x11c)
[<c0086cd0>] (run_rebalance_domains+0x44/0x11c) from [<c0092c88>]
(__do_softirq+0xc8/0x25c)
[<c0092c88>] (__do_softirq+0xc8/0x25c) from [<c00932d0>]
(irq_exit+0x98/0xa0)
[<c00932d0>] (irq_exit+0x98/0xa0) from [<c00462c4>] (do_IPI+0xf0/0x208)
[<c00462c4>] (do_IPI+0xf0/0x208) from [<c004c34c>] (__irq_svc+0x4c/0xe8)
Exception stack(0xd6067f90 to 0xd6067fd8)
7f80: 20000000 0000001d 00000000
f40dc010
7fa0: d6066000 c0ac4004 c0700a94 c0a2e83c 1000406a 412fc09a 00000000
00000000
7fc0: 00000001 d6067fd8 c005bf14 c004d468 200e0013 ffffffff
[<c004c34c>] (__irq_svc+0x4c/0xe8) from [<c004d468>]
(default_idle+0x24/0x28)
[<c004d468>] (default_idle+0x24/0x28) from [<c004d778>]
(cpu_idle+0xc8/0x108)
[<c004d778>] (cpu_idle+0xc8/0x108) from [<106f25b4>] (0x106f25b4)
CPU3: stopping
[<c0053fc4>] (unwind_backtrace+0x0/0x138) from [<c00463a8>]
(do_IPI+0x1d4/0x208)
[<c00463a8>] (do_IPI+0x1d4/0x208) from [<c004c34c>] (__irq_svc+0x4c/0xe8)
Exception stack(0xd609df90 to 0xd609dfd8)
df80: 20000000 0000001d 00000000
f40dc010
dfa0: d609c000 c0ac4004 c0700a94 c0a2e83c 1000406a 412fc09a 00000000
00000000
dfc0: 00000003 d609dfd8 c005bf14 c004d468 200e0013 ffffffff
[<c004c34c>] (__irq_svc+0x4c/0xe8) from [<c004d468>]
(default_idle+0x24/0x28)
[<c004d468>] (default_idle+0x24/0x28) from [<c004d778>]
(cpu_idle+0xc8/0x108)
[<c004d778>] (cpu_idle+0xc8/0x108) from [<106f25b4>] (0x106f25b4)
CPU0: stopping
[<c0053fc4>] (unwind_backtrace+0x0/0x138) from [<c00463a8>]
(do_IPI+0x1d4/0x208)
[<c00463a8>] (do_IPI+0x1d4/0x208) from [<c004c34c>] (__irq_svc+0x4c/0xe8)
Exception stack(0xc0a11f68 to 0xc0a11fb0)
1f60: 20000000 0000001d 00000000 f40dc010 c0a10000
c0ac4004
1f80: c0700a94 c0a2e83c 1000406a 412fc09a 00000000 00000000 00000000
c0a11fb0
1fa0: c005bf14 c004d468 200f0013 ffffffff
[<c004c34c>] (__irq_svc+0x4c/0xe8) from [<c004d468>]
(default_idle+0x24/0x28)
[<c004d468>] (default_idle+0x24/0x28) from [<c004d778>]
(cpu_idle+0xc8/0x108)
[<c004d778>] (cpu_idle+0xc8/0x108) from [<c00088bc>]
(start_kernel+0x29c/0x2ec)
[<c00088bc>] (start_kernel+0x29c/0x2ec) from [<10008040>] (0x10008040)
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