Hi
I got two new Overo AirStorm today, and they have same behavior. I tried disabling
the SMSC9xxx again and booted from MMC. This seems to make the backtrace a
little more consistent(Tried on both new and old). There is (almost) always something
about Alignment trap, the crash log itself differs every time. Also i get to allocate a lot
more memory before crash with these settings.
mallocsize = 34460000
mallocsize = 34464000
mallocsize = 34468000
[ 425.438629] Alignment trap: not handling instruction e1932f9f at [<c0082060>]
[ 425.446136] Unhandled fault: alignment exception (0x001) at 0x7be3c202
[ 425.453002] Internal error: : 1 [#1] SMP ARM
[ 425.457489] Modules linked in: snd_soc_omap_twl4030 libertas_sdio libertas snd_soc_omap snd_pcm_dmaengine lib80211 cfg80211 snd_soc_twl4030 snd_soc_core snd_compress snd_pcm snd_timer snd soundcore
[ 425.476226] CPU: 0 PID: 1582 Comm: kworker/u2:2 Not tainted 3.15.0-dirty #14
[ 425.483642] task: de062080 ti: dd1b8000 task.ti: dd1b8000
[ 425.489349] PC is at __lock_acquire+0x160/0x1cb8
[ 425.494232] LR is at lock_acquire+0xa0/0xfc
[ 425.498626] pc : [<c0082064>] lr : [<c00843c4>] psr: 20000193
[ 425.498626] sp : dd1b9bb0 ip : 00000001 fp : 7be3c0fe
[ 425.510681] r10: c0854c10 r9 : c0d7785c r8 : de062080
[ 425.516174] r7 : 00000000 r6 : dd1b8030 r5 : 00000000 r4 : dfaef6d0
[ 425.523010] r3 : 7be3c202 r2 : dfaef6d0 r1 : 28014a03 r0 : dfaef6d0
[ 425.529876] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
[ 425.537628] Control: 10c5307d Table: 9e76c019 DAC: 00000015
[ 425.543670] Process kworker/u2:2 (pid: 1582, stack limit = 0xdd1b8248)
[ 425.550506] Stack: (0xdd1b9bb0 to 0xdd1ba000)
[ 425.555114] 9ba0: de062080 00000004 00000006 c07fb7e4
[ 425.563720] 9bc0: 00000008 c0081998 dd1b8020 de062080 00000000 00000001 c07ef168 c0081ab8
[ 425.572296] 9be0: 1f2b8000 ddbe1780 ddbe65c0 dd1b8000 1f2b8000 c01486d4 00000000 ddbd60f0
[ 425.580902] 9c00: ddbe65c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 425.589508] 9c20: dfaef6d0 00000000 00000000 00000000 00000001 00000000 c007914c c00843c4
[ 425.598114] 9c40: 00000001 00000080 00000000 c007914c 00000000 00000002 dd1b8000 60000193
[ 425.606689] 9c60: c0854c10 dfaef6c0 00000113 c007914c 00000003 dd1b9cc8 c0146d90 c0147b3c
[ 425.615295] 9c80: 00000001 c054a808 00000001 00000000 c007914c 00000000 dfaef6c0 00000000
[ 425.623901] 9ca0: 00000001 c007914c 00000000 00000000 ddbe65c0 00000000 dd1b9d30 00000060
[ 425.632507] 9cc0: 00000001 c00791ac ddbe65c0 00000002 00000000 c0149548 00000001 00000000
[ 425.641082] 9ce0: 00000001 ddbd60f0 dd1b9d40 00000001 dd1b9d2c c01b60a0 dd1b9d2c 00000001
[ 425.649688] 9d00: de062080 00000004 00000006 00000001 00000001 00000000 de1ff000 dde0a490
[ 425.658294] 9d20: dd1b9d9c 00000000 00000001 00000000 ddbe65c0 c00843c4 00000001 00000000
[ 425.666900] 9d40: ddbe65c0 c0130274 00000000 c007fa8c dd1b8038 60000113 de1ff000 ddbd22a0
[ 425.675506] 9d60: dde0a468 dde0a468 ddbd60f0 ddbd2240 dd1b8000 de141015 de141014 00000000
[ 425.684082] 9d80: dd1b9eb8 c01b6534 dde0a468 c054a8d4 ddbd2240 c01302a8 00000000 00000000
[ 425.692687] 9da0: dde0a468 ddbd2240 ddbd2240 c0121cb4 00000001 00000011 ddbd2240 c012297c
[ 425.701293] 9dc0: dd1b8000 01141015 de141014 dd1b9eb8 dd1b9e10 c0123344 00000000 dd1b9e18
[ 425.709899] 9de0: dd1b9e10 00000003 dd1b8000 c0123c08 c0124b3c 00000001 00000000 c0081ab8
[ 425.718505] 9e00: dd1b9eb8 dd1b8030 c01269a4 de086dc0 00000000 c0124b3c 00000001 00000000
[ 425.727081] 9e20: 00727375 00000003 de141011 de086e00 de11fb80 de11fb80 dd1b9eb8 c0565f50
[ 425.735687] 9e40: de141000 ffffff9c 00000000 00000000 dd1b8000 c01269cc dd1b9e70 00000000
[ 425.744293] 9e60: dd1b8038 00000002 de062080 c0d7785c 00000000 00000000 00000000 00000000
[ 425.752899] 9e80: 00192082 c0926c08 0000000d c0565f50 00000001 de141000 ffffff9c de770500
[ 425.761474] 9ea0: de062080 dd1b8000 00000000 c0127ed8 00000041 00000004 de0361d0 ddbd2240
[ 425.770080] 9ec0: 00727375 00000003 de141011 de086e00 de0361d0 ddbd2240 ddbd60f0 00000011
[ 425.778686] 9ee0: 00000002 00000056 00000000 00000000 00000000 00000002 00000000 00000000
[ 425.787292] 9f00: c011fbfc c00843c4 00000000 00000000 00000000 c011fbfc 00000000 de141000
[ 425.795867] 9f20: dd1b8010 de671344 00000000 c011e450 de671344 00000000 de062080 de141000
[ 425.804473] 9f40: dd1b8010 de671344 00000000 c011fcd8 00000000 00000000 c011fbfc de141010
[ 425.813079] 9f60: 00000021 ffffffff 00000000 de0623ac 00000021 dd0b8940 00000000 de498140
[ 425.821685] 9f80: ffffffff ffffffff 00000000 00000000 00000000 c0053580 de498140 c00535b0
[ 425.830291] 9fa0: 00000000 00000000 00000000 c000e5e8 00000000 00000000 00000000 00000000
[ 425.838867] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 425.847473] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 425.856079] [<c0082064>] (__lock_acquire) from [<c00843c4>] (lock_acquire+0xa0/0xfc)
[ 425.864257] [<c00843c4>] (lock_acquire) from [<c054a808>] (_raw_spin_lock_irqsave+0x38/0x4c)
[ 425.873107] [<c054a808>] (_raw_spin_lock_irqsave) from [<c007914c>] (__wake_up+0x1c/0x4c)
[ 425.881713] [<c007914c>] (__wake_up) from [<c00791ac>] (__wake_up_bit+0x30/0x38)
[ 425.889495] [<c00791ac>] (__wake_up_bit) from [<c0149548>] (ll_rw_block+0x2c/0xf4)
[ 425.897460] [<c0149548>] (ll_rw_block) from [<c01b60a0>] (ext4_find_entry+0x190/0x5ec)
[ 425.905792] [<c01b60a0>] (ext4_find_entry) from [<c01b6534>] (ext4_lookup+0x38/0x164)
[ 425.914031] [<c01b6534>] (ext4_lookup) from [<c0121cb4>] (lookup_real+0x20/0x4c)
[ 425.921844] [<c0121cb4>] (lookup_real) from [<c012297c>] (__lookup_hash+0x38/0x40)
[ 425.929779] [<c012297c>] (__lookup_hash) from [<c0123344>] (lookup_slow+0x3c/0xa8)
[ 425.937744] [<c0123344>] (lookup_slow) from [<c0123c08>] (link_path_walk+0x404/0x85c)
[ 425.945983] [<c0123c08>] (link_path_walk) from [<c01269cc>] (path_openat+0x8c/0x604)
[ 425.954132] [<c01269cc>] (path_openat) from [<c0127ed8>] (do_filp_open+0x2c/0x80)
[ 425.962005] [<c0127ed8>] (do_filp_open) from [<c011e450>] (do_open_exec+0x18/0xf4)
[ 425.969970] [<c011e450>] (do_open_exec) from [<c011fcd8>] (do_execve+0x1a8/0x5cc)
[ 425.977844] [<c011fcd8>] (do_execve) from [<c0053580>] (____call_usermodehelper+0x100/0x130)
[ 425.986724] [<c0053580>] (____call_usermodehelper) from [<c000e5e8>] (ret_from_fork+0x14/0x2c)
[ 425.995788] Code: 0affffc8 e28b3f41 f5d3f000 e1932f9f (e2822001)
[ 426.002197] ---[ end trace 713ce209622ee484 ]---
[ 426.007141] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[ 426.015624] pgd = c0004000
[ 426.018463] [00000000] *pgd=00000000
[ 426.022247] Internal error: Oops: 17 [#2] SMP ARM
[ 426.027191] Modules linked in: snd_soc_omap_twl4030 libertas_sdio libertas snd_soc_omap snd_pcm_dmaengine lib80211 cfg80211 snd_soc_twl4030 snd_soc_core snd_compress snd_pcm snd_timer snd soundcore
[ 426.045898] CPU: 0 PID: 1582 Comm: kworker/u2:2 Tainted: G D 3.15.0-dirty #14
[ 426.054412] task: de062080 ti: dd1b8000 task.ti: dd1b8000
[ 426.060119] PC is at perf_event_task_tick+0xac/0x104
[ 426.065368] LR is at scheduler_tick+0x70/0xd4
[ 426.069976] pc : [<c00d3e8c>] lr : [<c006a808>] psr: 60000193
[ 426.069976] sp : dd1b9800 ip : 00000000 fp : dd1b983c
[ 426.082031] r10: 00000000 r9 : 1f2b8000 r8 : 1f2b8000
[ 426.087554] r7 : 00000000 r6 : dfaa6da4 r5 : fffffeb8 r4 : be8deef8
[ 426.094421] r3 : fffffeb8 r2 : 0000129c r1 : c07eedb8 r0 : fffffeb8
[ 426.101287] Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
[ 426.108886] Control: 10c5307d Table: 9e76c019 DAC: 00000015
[ 426.114959] Process kworker/u2:2 (pid: 1582, stack limit = 0xdd1b8248)
[ 426.121826] Stack: (0xdd1b9800 to 0xdd1ba000)
[ 426.126434] 9800: 00000001 dfaa8100 c07f0100 c07fb7e4 00000000 de062080 c00a16b0 c006a808
[ 426.135070] 9820: 00000000 dd1b8000 de062080 00000000 00000000 dd1b98f0 00000000 c004b560
[ 426.143676] 9840: 60000113 2fc2853e 00000063 dfaa5ba8 dd1b99b8 c00a16a4 00000001 c00a170c
[ 426.152313] 9860: dfaa5450 00000063 2fc2853e 00000063 00000001 dfaa5ba8 00000063 dfaa54a0
[ 426.160949] 9880: dfaa5450 c00600d4 dfaa5450 7fffffff ffffffff 2fc20e08 00000063 dfaa5460
[ 426.169586] 98a0: 00000000 dfaa5450 dfaa5450 c0060cfc ffffffff 7fffffff 2fc20e08 00000063
[ 426.178192] 98c0: c0d77061 00000003 ffffffff 7fffffff dfaa5508 dfaa5540 dfaa5578 dfaa5460
[ 426.186828] 98e0: 2fc20e08 00000063 2fc20e08 00000063 2fc20e08 00000063 dd02b810 c0801280
[ 426.195465] 9900: de0068d4 00000035 00000035 00000000 00000000 c088428c c08842a0 c002517c
[ 426.204071] 9920: c0025158 c008bcfc 00000035 00000000 00000000 de006880 de0068d4 de006880
[ 426.212707] 9940: de0068d4 c0801280 00000035 00000000 00000000 00000001 de062080 c008bebc
[ 426.221343] 9960: de006880 de0068d4 00001307 c008e89c 00000035 c07ef1b0 dd1b8008 c008b3dc
[ 426.229980] 9980: c07fb7e4 c000ee48 fa200000 dd1b99b8 c08874b8 00000035 c0082068 c00085fc
[ 426.238586] 99a0: de062080 c054a978 60000113 ffffffff dd1b99ec c054b2e4 c054a974 00000001
[ 426.247222] 99c0: 0000002a 00000000 de24f284 0000000b c0082066 c07ff5c4 c0082068 00000000
[ 426.255859] 99e0: 00000001 de062080 00000000 dd1b9a00 c054a974 c054a978 60000113 ffffffff
[ 426.264495] 9a00: dd1b8000 c003ffbc 00000001 c008b0f0 00000001 dd1b8008 c008b024 c0543050
[ 426.273101] 9a20: c06c9fec c0840100 0000000b dd1b8000 0000000b c0082066 c07ff5c4 c0082068
[ 426.281738] 9a40: 00000000 00000001 c0886b44 c00121a0 dd1b8248 0000000b c0d7747e 60000193
[ 426.290374] 9a60: 00000000 00000008 30000000 66666661 20386366 62383265 31346633 64356620
[ 426.298980] 9a80: 30306633 31652030 66323339 28206639 32383265 31303032 7b002029 c0543050
[ 426.307617] 9aa0: c06be158 00000001 00000007 c080016c 7be3c202 dd1b9b68 c0d7785c c0854c10
[ 426.316253] 9ac0: 7be3c0fe c0008438 00000000 c0926c08 00000007 00000000 00030001 7be3c202
[ 426.324859] 9ae0: 243a01a7 00000003 00000000 00000000 00000000 00000000 00000000 00000000
[ 426.333496] 9b00: 00000000 00000000 00000000 00000000 00000000 00000000 c08404fc 00000000
[ 426.342132] 9b20: 00000000 00000002 00000000 00000000 dd803994 00000000 00000000 00000000
[ 426.350738] 9b40: 00000001 00000000 c014722c c00843c4 c0082060 20000193 ffffffff dd1b9b9c
[ 426.359374] 9b60: de062080 c054b264 dfaef6d0 28014a03 dfaef6d0 7be3c202 dfaef6d0 00000000
[ 426.368011] 9b80: dd1b8030 00000000 de062080 c0d7785c c0854c10 7be3c0fe 00000001 dd1b9bb0
[ 426.376617] 9ba0: c00843c4 c0082064 20000193 ffffffff de062080 00000004 00000006 c07fb7e4
[ 426.385253] 9bc0: 00000008 c0081998 dd1b8020 de062080 00000000 00000001 c07ef168 c0081ab8
[ 426.393890] 9be0: 1f2b8000 ddbe1780 ddbe65c0 dd1b8000 1f2b8000 c01486d4 00000000 ddbd60f0
[ 426.402526] 9c00: ddbe65c0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 426.411132] 9c20: dfaef6d0 00000000 00000000 00000000 00000001 00000000 c007914c c00843c4
[ 426.419769] 9c40: 00000001 00000080 00000000 c007914c 00000000 00000002 dd1b8000 60000193
[ 426.428375] 9c60: c0854c10 dfaef6c0 00000113 c007914c 00000003 dd1b9cc8 c0146d90 c0147b3c
[ 426.437011] 9c80: 00000001 c054a808 00000001 00000000 c007914c 00000000 dfaef6c0 00000000
[ 426.445648] 9ca0: 00000001 c007914c 00000000 00000000 ddbe65c0 00000000 dd1b9d30 00000060
[ 426.454284] 9cc0: 00000001 c00791ac ddbe65c0 00000002 00000000 c0149548 00000001 00000000
[ 426.462890] 9ce0: 00000001 ddbd60f0 dd1b9d40 00000001 dd1b9d2c c01b60a0 dd1b9d2c 00000001
[ 426.471527] 9d00: de062080 00000004 00000006 00000001 00000001 00000000 de1ff000 dde0a490
[ 426.480133] 9d20: dd1b9d9c 00000000 00000001 00000000 ddbe65c0 c00843c4 00000001 00000000
[ 426.488769] 9d40: ddbe65c0 c0130274 00000000 c007fa8c dd1b8038 60000113 de1ff000 ddbd22a0
[ 426.497406] 9d60: dde0a468 dde0a468 ddbd60f0 ddbd2240 dd1b8000 de141015 de141014 00000000
[ 426.506042] 9d80: dd1b9eb8 c01b6534 dde0a468 c054a8d4 ddbd2240 c01302a8 00000000 00000000
[ 426.514648] 9da0: dde0a468 ddbd2240 ddbd2240 c0121cb4 00000001 00000011 ddbd2240 c012297c
[ 426.523284] 9dc0: dd1b8000 01141015 de141014 dd1b9eb8 dd1b9e10 c0123344 00000000 dd1b9e18
[ 426.531921] 9de0: dd1b9e10 00000003 dd1b8000 c0123c08 c0124b3c 00000001 00000000 c0081ab8
[ 426.540527] 9e00: dd1b9eb8 dd1b8030 c01269a4 de086dc0 00000000 c0124b3c 00000001 00000000
[ 426.549163] 9e20: 00727375 00000003 de141011 de086e00 de11fb80 de11fb80 dd1b9eb8 c0565f50
[ 426.557800] 9e40: de141000 ffffff9c 00000000 00000000 dd1b8000 c01269cc dd1b9e70 00000000
[ 426.566436] 9e60: dd1b8038 00000002 de062080 c0d7785c 00000000 00000000 00000000 00000000
[ 426.575042] 9e80: 00192082 c0926c08 0000000d c0565f50 00000001 de141000 ffffff9c de770500
[ 426.583679] 9ea0: de062080 dd1b8000 00000000 c0127ed8 00000041 00000004 de0361d0 ddbd2240
[ 426.592315] 9ec0: 00727375 00000003 de141011 de086e00 de0361d0 ddbd2240 ddbd60f0 00000011
[ 426.600921] 9ee0: 00000002 00000056 00000000 00000000 00000000 00000002 00000000 00000000
[ 426.609558] 9f00: c011fbfc c00843c4 00000000 00000000 00000000 c011fbfc 00000000 de141000
[ 426.618194] 9f20: dd1b8010 de671344 00000000 c011e450 de671344 00000000 de062080 de141000
[ 426.626800] 9f40: dd1b8010 de671344 00000000 c011fcd8 00000000 00000000 c011fbfc de141010
[ 426.635437] 9f60: 00000021 ffffffff 00000000 de0623ac 00000021 dd0b8940 00000000 de498140
[ 426.644073] 9f80: ffffffff ffffffff 00000000 00000000 00000000 c0053580 de498140 c00535b0
[ 426.652679] 9fa0: 00000000 00000000 00000000 c000e5e8 00000000 00000000 00000000 00000000
[ 426.661315] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 426.669921] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 426.678558] [<c00d3e8c>] (perf_event_task_tick) from [<c006a808>] (scheduler_tick+0x70/0xd4)
[ 426.687469] [<c006a808>] (scheduler_tick) from [<c004b560>] (update_process_times+0x54/0x60)
[ 426.696380] [<c004b560>] (update_process_times) from [<c00a16a4>] (tick_sched_handle.isra.18+0x44/0x50)
[ 426.706298] [<c00a16a4>] (tick_sched_handle.isra.18) from [<c00a170c>] (tick_sched_timer+0x5c/0x90)
[ 426.715820] [<c00a170c>] (tick_sched_timer) from [<c00600d4>] (__run_hrtimer+0x7c/0x1e0)
[ 426.724365] [<c00600d4>] (__run_hrtimer) from [<c0060cfc>] (hrtimer_interrupt+0x128/0x2b8)
[ 426.733093] [<c0060cfc>] (hrtimer_interrupt) from [<c002517c>] (omap2_gp_timer_interrupt+0x24/0x34)
[ 426.742645] [<c002517c>] (omap2_gp_timer_interrupt) from [<c008bcfc>] (handle_irq_event_percpu+0x40/0x1c4)
[ 426.752838] [<c008bcfc>] (handle_irq_event_percpu) from [<c008bebc>] (handle_irq_event+0x3c/0x5c)
[ 426.762176] [<c008bebc>] (handle_irq_event) from [<c008e89c>] (handle_level_irq+0xac/0x154)
[ 426.770996] [<c008e89c>] (handle_level_irq) from [<c008b3dc>] (generic_handle_irq+0x28/0x3c)
[ 426.779907] [<c008b3dc>] (generic_handle_irq) from [<c000ee48>] (handle_IRQ+0x4c/0xb4)
[ 426.788269] [<c000ee48>] (handle_IRQ) from [<c00085fc>] (omap3_intc_handle_irq+0x80/0x9c)
[ 426.796874] [<c00085fc>] (omap3_intc_handle_irq) from [<c054b2e4>] (__irq_svc+0x44/0x5c)
[ 426.805389] Exception stack(0xdd1b99b8 to 0xdd1b9a00)
[ 426.810729] 99a0: c054a974 00000001
[ 426.819366] 99c0: 0000002a 00000000 de24f284 0000000b c0082066 c07ff5c4 c0082068 00000000
[ 426.827972] 99e0: 00000001 de062080 00000000 dd1b9a00 c054a974 c054a978 60000113 ffffffff
[ 426.836608] [<c054b2e4>] (__irq_svc) from [<c054a978>] (_raw_spin_unlock_irq+0x28/0x2c)
[ 426.845092] [<c054a978>] (_raw_spin_unlock_irq) from [<c003ffbc>] (do_exit+0x138/0x924)
[ 426.853546] [<c003ffbc>] (do_exit) from [<c00121a0>] (die+0x1fc/0x3b8)
[ 426.860443] [<c00121a0>] (die) from [<c0008438>] (do_DataAbort+0x88/0x98)
[ 426.867584] [<c0008438>] (do_DataAbort) from [<c054b264>] (__dabt_svc+0x44/0x80)
[ 426.875366] Exception stack(0xdd1b9b68 to 0xdd1b9bb0)
[ 426.880706] 9b60: dfaef6d0 28014a03 dfaef6d0 7be3c202 dfaef6d0 00000000
[ 426.889343] 9b80: dd1b8030 00000000 de062080 c0d7785c c0854c10 7be3c0fe 00000001 dd1b9bb0
[ 426.897949] 9ba0: c00843c4 c0082064 20000193 ffffffff
[ 426.903289] [<c054b264>] (__dabt_svc) from [<c0082064>] (__lock_acquire+0x160/0x1cb8)
[ 426.911560] [<c0082064>] (__lock_acquire) from [<c00843c4>] (lock_acquire+0xa0/0xfc)
[ 426.919738] [<c00843c4>] (lock_acquire) from [<c054a808>] (_raw_spin_lock_irqsave+0x38/0x4c)
[ 426.928649] [<c054a808>] (_raw_spin_lock_irqsave) from [<c007914c>] (__wake_up+0x1c/0x4c)
[ 426.937255] [<c007914c>] (__wake_up) from [<c00791ac>] (__wake_up_bit+0x30/0x38)
[ 426.945068] [<c00791ac>] (__wake_up_bit) from [<c0149548>] (ll_rw_block+0x2c/0xf4)
[ 426.953033] [<c0149548>] (ll_rw_block) from [<c01b60a0>] (ext4_find_entry+0x190/0x5ec)
[ 426.961364] [<c01b60a0>] (ext4_find_entry) from [<c01b6534>] (ext4_lookup+0x38/0x164)
[ 426.969604] [<c01b6534>] (ext4_lookup) from [<c0121cb4>] (lookup_real+0x20/0x4c)
[ 426.977386] [<c0121cb4>] (lookup_real) from [<c012297c>] (__lookup_hash+0x38/0x40)
[ 426.985351] [<c012297c>] (__lookup_hash) from [<c0123344>] (lookup_slow+0x3c/0xa8)
[ 426.993286] [<c0123344>] (lookup_slow) from [<c0123c08>] (link_path_walk+0x404/0x85c)
[ 427.001525] [<c0123c08>] (link_path_walk) from [<c01269cc>] (path_openat+0x8c/0x604)
[ 427.009674] [<c01269cc>] (path_openat) from [<c0127ed8>] (do_filp_open+0x2c/0x80)
[ 427.017547] [<c0127ed8>] (do_filp_open) from [<c011e450>] (do_open_exec+0x18/0xf4)
[ 427.025512] [<c011e450>] (do_open_exec) from [<c011fcd8>] (do_execve+0x1a8/0x5cc)
[ 427.033386] [<c011fcd8>] (do_execve) from [<c0053580>] (____call_usermodehelper+0x100/0x130)
[ 427.042266] [<c0053580>] (____call_usermodehelper) from [<c000e5e8>] (ret_from_fork+0x14/0x2c)
[ 427.051300] Code: e1973003 1a00000b e1a03005 e1a00005 (e5b35148)
[ 427.057708] ---[ end trace 713ce209622ee485 ]---
[ 427.062561] Kernel panic - not syncing: Fatal exception in interrupt
[ 427.069244] ---[ end Kernel panic - not syncing: Fatal exception in interrupt
Med venlig hilsen/Best regards
Casper Mogensen
________________________________________
From: Casper Lyngesen Mogensen
Sent: Friday, June 20, 2014 16:26
To: Ash Charles
Cc: Tony Lindgren; linux-omap@xxxxxxxxxxxxxxx
Subject: RE: OMAP 3630 random crashes
Hi
The memory on the Overo, i have with me right now, is actually marked JW513,
and 18 months is also around the time, they were bought. Will check my other
modules, when i get back to the office.
However i have not been able to recreate the problem with the 3.5.0 kernel on
same Overo
Med venlig hilsen/Best regards
Casper Mogensen
________________________________________
From: ashcharles@xxxxxxxxx <ashcharles@xxxxxxxxx> on behalf of Ash Charles <ash@xxxxxxxxxxx>
Sent: Friday, June 20, 2014 16:17
To: Casper Lyngesen Mogensen
Cc: Tony Lindgren; linux-omap@xxxxxxxxxxxxxxx
Subject: Re: OMAP 3630 random crashes
Hi Casper,
What is the top-side marking on the memory chip on your Overo? There
were some random faults due to poor memory chips marked 'JW513' from
about 18 months ago.
--Ash
On Fri, Jun 20, 2014 at 7:00 AM, Casper Lyngesen Mogensen
<clmogensen@xxxxxxxxxxxx> wrote:
> Hi
>
> U-boot seems to set the speed to 165 Mhz
> "OMAP36XX/37XX-GP ES1.2, CPU-OPP2, L3-165MHz, Max CPU Clock 1 Ghz"
>
> I have a LAN9221, but tried the other timings, still same result.
>
> Also tried running the entire system from an MMC card, same result, but my test had
> to run a little longer.
>
> Found a quicker test to reproduce the error, a little C-program:
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <errno.h>
>
> int main(void){
> long long var=0;
>
> int *ptr=NULL;
>
> int run=1;
> while(run){
> ptr=malloc(sizeof(int)*1000);
> if(ptr==NULL){
> run=0;
> }
> var+=1000;
> printf("mallocsize = %lld\n",var*sizeof(int));
> }
> }
>
>
> Booting from NFS, the system crashes at ~40mb allocated
> On MMC at ~60MB
>
> Med venlig hilsen/Best regards
>
> Casper Mogensen
>
> ________________________________________
> From: Tony Lindgren <tony@xxxxxxxxxxx>
> Sent: Friday, June 20, 2014 11:14
> To: Casper Lyngesen Mogensen
> Cc: linux-omap@xxxxxxxxxxxxxxx
> Subject: Re: OMAP 3630 random crashes
>
> Hi,
>
> * Casper Lyngesen Mogensen <clmogensen@xxxxxxxxxxxx> [140620 01:52]:
>> Hi
>>
>> I have custom board with a Gumstix Overo, my board is similar to a
>> Tobi board. Right now i have it running with a 3.5.0 kernel. I'm
>> trying to upgrade the kernel, and have tried several versions (3.10 ->
>> 3.15) and i seem to be hitting the same problem with all versions, i
>> get random crashes. Found a way to trigger the crash within
>> minutes/seconds:
>>
>> # dd if=/dev/urandom of=/tmp/test.file bs=1024 count=100000
>>
>> A count > 10000 will at some point trigger the crash. The hang/crash
>> is repeatable everytime but the log is not, sometimes i do not get
>> any trace at all. I can provide more logs if necessary. Config and
>> crash log are below..
>>
>> Have tried disabling various peripherals, such as sound, usb,
>> ethernet, wifi, bluetooth, but with no luck. Also tried different Overo
>> boards.
>>
>> Hope someone can help me/point me in the right direction
>
> I was seeing similar issues with NFSroot until commit dcf21919
> (ARM: dts: Fix GPMC timings for LAN9220). Turns out LAN9220 has
> much slower timings compared to LAN9221. So you need to check that
> you're using right timings if you have LAN9220.
>
> Also, check what rate your bootloader is setting the L3 speed.
> If it's set to 200MHz, then LAN9220 timings seem to overflow the
> GPMC registers for the calculated values and bootloader timings
> are used instead.
>
>> Starting kernel ...
>>
>> [ 0.000000] Booting Linux on physical CPU 0x0
>> [ 0.000000] Linux version 3.15.0 (clmo@N66266) (gcc version 4.8.1 (crosstool-NG 1.19.0) ) #3 SMP Wed Jun 11 23:50:13 CEST 2014
>> [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
>> [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
>> [ 0.000000] Machine model: OMAP36xx/AM37xx/DM37xx Gumstix Overo on Tobi
>> [ 0.000000] cma: CMA: reserved 16 MiB at 8d800000
>> [ 0.000000] Memory policy: Data cache writeback
>> [ 0.000000] CPU: All CPU(s) started in SVC mode.
>> [ 0.000000] OMAP3630 ES1.2 (l2cache neon isp 192mhz_clk )
>> [ 0.000000] PERCPU: Embedded 9 pages/cpu @cecc6000 s14080 r8192 d14592 u36864
>> [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 60704
>> [ 0.000000] Kernel command line: console=ttyO2,115200n8 root=/dev/nfs nfsroot=192.168.100.1:/export/bbroot,nolock rw ip=192.168.100.7::192.168.100.1:::eth0:off mem=240M
>
> Maybe also check if your test works with NFSroot idsabled.
>
> Regards,
>
> Tony
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