* lockdep: INFO: possible irq lock inversion dependency detected on Odroid U3
@ 2016-02-10 7:27 Anand Moon
2016-02-14 8:52 ` Krzysztof Kozlowski
0 siblings, 1 reply; 4+ messages in thread
From: Anand Moon @ 2016-02-10 7:27 UTC (permalink / raw)
To: linux-arm-kernel
Hi all,
I am observing following lockdep info.
[ 139.806823] =========================================================
[ 139.811934] [ INFO: possible irq lock inversion dependency detected ]
[ 139.818362] 4.5.0-rc3-u3s #11 Tainted: G W
[ 139.823566] ---------------------------------------------------------
[ 139.829990] swapper/0/0 just changed the state of lock:
[ 139.835197] (&(&substream->self_group.lock)->rlock){..-...}, at:
[<c04e03cc>] _snd_pcm_stream_lock_irqsave+0x34/0x40
[ 139.845788] but this lock took another, SOFTIRQ-unsafe lock in the past:
[ 139.852468] (&(&pri_dai->spinlock)->rlock){+.+...}
and interrupts could create inverse lock ordering between them.
[ 139.863319]
[ 139.863319] other info that might help us debug this:
[ 139.869830] Possible interrupt unsafe locking scenario:
[ 139.869830]
[ 139.876599] CPU0 CPU1
[ 139.881113] ---- ----
[ 139.885626] lock(&(&pri_dai->spinlock)->rlock);
[ 139.890314] local_irq_disable();
[ 139.896216]
lock(&(&substream->self_group.lock)->rlock);
[ 139.904201]
lock(&(&pri_dai->spinlock)->rlock);
[ 139.911405] <Interrupt>
[ 139.914009] lock(&(&substream->self_group.lock)->rlock);
[ 139.919652]
[ 139.919652] *** DEADLOCK ***
[ 139.919652]
[ 139.925558] 1 lock held by swapper/0/0:
[ 139.929374] #0: (snd_pcm_link_rwlock){...-..}, at: [<c04e0330>]
snd_pcm_stream_lock+0x20/0x50
[ 139.938054]
[ 139.938054] the shortest dependencies between 2nd lock and 1st lock:
[ 139.945893] -> (&(&pri_dai->spinlock)->rlock){+.+...} ops: 37 {
[ 139.951856] HARDIRQ-ON-W at:
[ 139.955067] [<c066b89c>] _raw_spin_lock+0x3c/0x74
[ 139.961663] [<c0500558>] i2s_set_sysclk+0x40/0x464
[ 139.968347] [<c0500e0c>]
samsung_i2s_dai_probe+0x238/0x2b0
[ 139.975725] [<c04ed5f8>] soc_probe_dai.part.2+0x30/0x6c
[ 139.982842] [<c04ee1b8>]
snd_soc_register_card+0x854/0xe64
[ 139.990220] [<c04f9b0c>]
devm_snd_soc_register_card+0x38/0x70
[ 139.997859] [<c04ff0f8>]
asoc_simple_card_probe+0x224/0x460
[ 140.005323] [<c036da6c>] platform_drv_probe+0x4c/0xb0
[ 140.012267] [<c036c2ac>]
driver_probe_device+0x20c/0x2b8
[ 140.019472] [<c036a644>] bus_for_each_drv+0x60/0x94
[ 140.026242] [<c036bfc0>] __device_attach+0xb4/0x118
[ 140.033013] [<c036b464>] bus_probe_device+0x88/0x90
[ 140.039783] [<c036b900>]
deferred_probe_work_func+0x6c/0x9c
[ 140.047248] [<c0043408>] process_one_work+0x1a8/0x514
[ 140.054192] [<c00437ac>] worker_thread+0x38/0x574
[ 140.060789] [<c0049c0c>] kthread+0xf4/0x10c
[ 140.066865] [<c000f890>] ret_from_fork+0x14/0x24
[ 140.073376] SOFTIRQ-ON-W at:
[ 140.076587] [<c066b89c>] _raw_spin_lock+0x3c/0x74
[ 140.083183] [<c0500558>] i2s_set_sysclk+0x40/0x464
[ 140.089867] [<c0500e0c>]
samsung_i2s_dai_probe+0x238/0x2b0
[ 140.097245] [<c04ed5f8>] soc_probe_dai.part.2+0x30/0x6c
[ 140.104362] [<c04ee1b8>]
snd_soc_register_card+0x854/0xe64
[ 140.111740] [<c04f9b0c>]
devm_snd_soc_register_card+0x38/0x70
[ 140.119379] [<c04ff0f8>]
asoc_simple_card_probe+0x224/0x460
[ 140.126843] [<c036da6c>] platform_drv_probe+0x4c/0xb0
[ 140.133787] [<c036c2ac>]
driver_probe_device+0x20c/0x2b8
[ 140.140992] [<c036a644>] bus_for_each_drv+0x60/0x94
[ 140.147762] [<c036bfc0>] __device_attach+0xb4/0x118
[ 140.154533] [<c036b464>] bus_probe_device+0x88/0x90
[ 140.161303] [<c036b900>]
deferred_probe_work_func+0x6c/0x9c
[ 140.168768] [<c0043408>] process_one_work+0x1a8/0x514
[ 140.175712] [<c00437ac>] worker_thread+0x38/0x574
[ 140.182309] [<c0049c0c>] kthread+0xf4/0x10c
[ 140.188385] [<c000f890>] ret_from_fork+0x14/0x24
[ 140.194896] INITIAL USE at:
[ 140.198020] [<c066bb14>]
_raw_spin_lock_irqsave+0x48/0x84
[ 140.205224] [<c04c2d44>] clk_divider_set_rate+0x40/0xc0
[ 140.212255] [<c04c1320>] clk_change_rate+0x17c/0x210
[ 140.219025] [<c04c12b8>] clk_change_rate+0x114/0x210
[ 140.225796] }
[ 140.227532] ... key at: [<c13e2f04>] __key.37532+0x0/0x8
[ 140.233435] ... acquired at:
[ 140.236472] [<c04ffb18>] i2s_trigger+0x40/0x62c
[ 140.241246] [<c04f4d14>] soc_pcm_trigger+0xd0/0x11c
[ 140.246367] [<c04dfe58>] snd_pcm_action_single+0x38/0x80
[ 140.251922] [<c04e1dac>] snd_pcm_common_ioctl1+0x3bc/0xe20
[ 140.257651] [<c04e29b4>] snd_pcm_playback_ioctl1+0x1a4/0x69c
[ 140.263553] [<c01343f8>] do_vfs_ioctl+0xa0/0x9d4
[ 140.268414] [<c0134d60>] SyS_ioctl+0x34/0x5c
[ 140.272927] [<c000f800>] ret_fast_syscall+0x0/0x1c
[ 140.277962]
[ 140.279438] -> (&(&substream->self_group.lock)->rlock){..-...} ops: 153 {
[ 140.286209] IN-SOFTIRQ-W at:
[ 140.289333] [<c066b89c>] _raw_spin_lock+0x3c/0x74
[ 140.295757] [<c04e03cc>]
_snd_pcm_stream_lock_irqsave+0x34/0x40
[ 140.303395] [<c04e6f44>] snd_pcm_period_elapsed+0x1c/0xa0
[ 140.310512] [<c02de5b0>] pl330_tasklet+0x198/0x518
[ 140.317022] [<c002e424>] tasklet_action+0xac/0x164
[ 140.323532] [<c002e6ac>] __do_softirq+0x168/0x2c0
[ 140.329955] [<c002eba8>] irq_exit+0xec/0x128
[ 140.335945] [<c0087314>] __handle_domain_irq+0x80/0xec
[ 140.342802] [<c0009514>] gic_handle_irq+0x54/0x94
[ 140.349225] [<c00144f8>] __irq_svc+0x58/0x98
[ 140.355214] [<c00102f8>] arch_cpu_idle+0x24/0x3c
[ 140.361551] [<c00102f8>] arch_cpu_idle+0x24/0x3c
[ 140.367887] [<c006d5d4>] cpu_startup_entry+0x1f4/0x280
[ 140.374744] [<c08c8ccc>] start_kernel+0x3ec/0x3f8
[ 140.381169] INITIAL USE at:
[ 140.384205] [<c066b89c>] _raw_spin_lock+0x3c/0x74
[ 140.390542] [<c04e0850>] snd_pcm_sync_ptr+0xf8/0x1e0
[ 140.397139] [<c04e1e68>] snd_pcm_common_ioctl1+0x478/0xe20
[ 140.404256] [<c04e3078>]
snd_pcm_capture_ioctl1+0x1a4/0x688
[ 140.411461] [<c01343f8>] do_vfs_ioctl+0xa0/0x9d4
[ 140.417710] [<c0134d60>] SyS_ioctl+0x34/0x5c
[ 140.423613] [<c000f800>] ret_fast_syscall+0x0/0x1c
[ 140.430036] }
[ 140.431685] ... key at: [<c13e2be8>] __key.29136+0x0/0x8
[ 140.437501] ... acquired at:
[ 140.440452] [<c0079630>] __lock_acquire+0x774/0x1ee0
[ 140.445659] [<c007b390>] lock_acquire+0xa8/0xd0
[ 140.450433] [<c066b89c>] _raw_spin_lock+0x3c/0x74
[ 140.455381] [<c04e03cc>] _snd_pcm_stream_lock_irqsave+0x34/0x40
[ 140.461544] [<c04e6f44>] snd_pcm_period_elapsed+0x1c/0xa0
[ 140.467186] [<c02de5b0>] pl330_tasklet+0x198/0x518
[ 140.472220] [<c002e424>] tasklet_action+0xac/0x164
[ 140.477255] [<c002e6ac>] __do_softirq+0x168/0x2c0
[ 140.482202] [<c002eba8>] irq_exit+0xec/0x128
[ 140.486716] [<c0087314>] __handle_domain_irq+0x80/0xec
[ 140.492097] [<c0009514>] gic_handle_irq+0x54/0x94
[ 140.497044] [<c00144f8>] __irq_svc+0x58/0x98
[ 140.501559] [<c00102f8>] arch_cpu_idle+0x24/0x3c
[ 140.506420] [<c00102f8>] arch_cpu_idle+0x24/0x3c
[ 140.511280] [<c006d5d4>] cpu_startup_entry+0x1f4/0x280
[ 140.516662] [<c08c8ccc>] start_kernel+0x3ec/0x3f8
[ 140.521609]
[ 140.523086]
[ 140.523086] stack backtrace:
[ 140.527435] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W
4.5.0-rc3-u3s #11
[ 140.535240] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 140.541339] [<c0016d6c>] (unwind_backtrace) from [<c00139f8>]
(show_stack+0x10/0x14)
[ 140.549063] [<c00139f8>] (show_stack) from [<c0283884>]
(dump_stack+0x98/0xc4)
[ 140.556263] [<c0283884>] (dump_stack) from [<c0075458>]
(print_irq_inversion_bug+0x1d4/0x21c)
[ 140.564766] [<c0075458>] (print_irq_inversion_bug) from
[<c0075550>] (check_usage_forwards+0xb0/0x10c)
[ 140.574051] [<c0075550>] (check_usage_forwards) from [<c00764f8>]
(mark_lock+0x370/0x81c)
[ 140.582211] [<c00764f8>] (mark_lock) from [<c0079630>]
(__lock_acquire+0x774/0x1ee0)
[ 140.589936] [<c0079630>] (__lock_acquire) from [<c007b390>]
(lock_acquire+0xa8/0xd0)
[ 140.597665] [<c007b390>] (lock_acquire) from [<c066b89c>]
(_raw_spin_lock+0x3c/0x74)
[ 140.605389] [<c066b89c>] (_raw_spin_lock) from [<c04e03cc>]
(_snd_pcm_stream_lock_irqsave+0x34/0x40)
[ 140.614503] [<c04e03cc>] (_snd_pcm_stream_lock_irqsave) from
[<c04e6f44>] (snd_pcm_period_elapsed+0x1c/0xa0)
[ 140.624313] [<c04e6f44>] (snd_pcm_period_elapsed) from [<c02de5b0>]
(pl330_tasklet+0x198/0x518)
[ 140.632993] [<c02de5b0>] (pl330_tasklet) from [<c002e424>]
(tasklet_action+0xac/0x164)
[ 140.640890] [<c002e424>] (tasklet_action) from [<c002e6ac>]
(__do_softirq+0x168/0x2c0)
[ 140.648787] [<c002e6ac>] (__do_softirq) from [<c002eba8>]
(irq_exit+0xec/0x128)
[ 140.656080] [<c002eba8>] (irq_exit) from [<c0087314>]
(__handle_domain_irq+0x80/0xec)
[ 140.663889] [<c0087314>] (__handle_domain_irq) from [<c0009514>]
(gic_handle_irq+0x54/0x94)
[ 140.672219] [<c0009514>] (gic_handle_irq) from [<c00144f8>]
(__irq_svc+0x58/0x98)
[ 140.679677] Exception stack(0xc0aa5f50 to 0xc0aa5f98)
[ 140.684716] 5f40: 00000000
2e0b1000 00000000 c0aaa540
[ 140.692879] 5f60: c0aa4000 c0aa655c 00000000 00000000 c0aa5fa8
c093d49c c0aa65bc c0aa65c4
[ 140.701035] 5f80: 00000000 c0aa5fa0 c0076b38 c00102f8 20030053 ffffffff
[ 140.707637] [<c00144f8>] (__irq_svc) from [<c00102f8>]
(arch_cpu_idle+0x24/0x3c)
[ 140.715014] [<c00102f8>] (arch_cpu_idle) from [<c006d5d4>]
(cpu_startup_entry+0x1f4/0x280)
[ 140.723265] [<c006d5d4>] (cpu_startup_entry) from [<c08c8ccc>]
(start_kernel+0x3ec/0x3f8)
Best Regards
-Anand Moon
^ permalink raw reply [flat|nested] 4+ messages in thread* lockdep: INFO: possible irq lock inversion dependency detected on Odroid U3 2016-02-10 7:27 lockdep: INFO: possible irq lock inversion dependency detected on Odroid U3 Anand Moon @ 2016-02-14 8:52 ` Krzysztof Kozlowski 2016-02-14 11:46 ` Anand Moon 2016-02-14 19:12 ` Anand Moon 0 siblings, 2 replies; 4+ messages in thread From: Krzysztof Kozlowski @ 2016-02-14 8:52 UTC (permalink / raw) To: linux-arm-kernel W dniu 10.02.2016 o 16:27, Anand Moon pisze: > Hi all, > > I am observing following lockdep info. Hi, Thanks for report. When pasting dmesg output, please do not wrap the lines because it is difficult to read it. This looks like known issue: https://wiki.tizen.org/wiki/Exynos_Mainline_Kernel_TODO/Odroid_XU3_lockdep_warn_during_music_playback Waiting for someone brave enough to fix it... But actually more important item is following real lockup, failing multi_v7 boot ~20% of times: http://www.krzk.eu/builders/boot-odroid-xu3-multi_v7/builds/34 http://www.krzk.eu/builders/boot-odroid-xu3-multi_v7 Best regards, Krzysztof > > [ 139.806823] ========================================================= > [ 139.811934] [ INFO: possible irq lock inversion dependency detected ] > [ 139.818362] 4.5.0-rc3-u3s #11 Tainted: G W > [ 139.823566] --------------------------------------------------------- > [ 139.829990] swapper/0/0 just changed the state of lock: > [ 139.835197] (&(&substream->self_group.lock)->rlock){..-...}, at: > [<c04e03cc>] _snd_pcm_stream_lock_irqsave+0x34/0x40 > [ 139.845788] but this lock took another, SOFTIRQ-unsafe lock in the past: > [ 139.852468] (&(&pri_dai->spinlock)->rlock){+.+...} > > and interrupts could create inverse lock ordering between them. > > [ 139.863319] > [ 139.863319] other info that might help us debug this: > [ 139.869830] Possible interrupt unsafe locking scenario: > [ 139.869830] > [ 139.876599] CPU0 CPU1 > [ 139.881113] ---- ---- > [ 139.885626] lock(&(&pri_dai->spinlock)->rlock); > [ 139.890314] local_irq_disable(); > [ 139.896216] > lock(&(&substream->self_group.lock)->rlock); > [ 139.904201] > lock(&(&pri_dai->spinlock)->rlock); > [ 139.911405] <Interrupt> > [ 139.914009] lock(&(&substream->self_group.lock)->rlock); > [ 139.919652] > [ 139.919652] *** DEADLOCK *** > [ 139.919652] > [ 139.925558] 1 lock held by swapper/0/0: > [ 139.929374] #0: (snd_pcm_link_rwlock){...-..}, at: [<c04e0330>] > snd_pcm_stream_lock+0x20/0x50 > [ 139.938054] > [ 139.938054] the shortest dependencies between 2nd lock and 1st lock: > [ 139.945893] -> (&(&pri_dai->spinlock)->rlock){+.+...} ops: 37 { > [ 139.951856] HARDIRQ-ON-W at: > [ 139.955067] [<c066b89c>] _raw_spin_lock+0x3c/0x74 > [ 139.961663] [<c0500558>] i2s_set_sysclk+0x40/0x464 > [ 139.968347] [<c0500e0c>] > samsung_i2s_dai_probe+0x238/0x2b0 > [ 139.975725] [<c04ed5f8>] soc_probe_dai.part.2+0x30/0x6c > [ 139.982842] [<c04ee1b8>] > snd_soc_register_card+0x854/0xe64 > [ 139.990220] [<c04f9b0c>] > devm_snd_soc_register_card+0x38/0x70 > [ 139.997859] [<c04ff0f8>] > asoc_simple_card_probe+0x224/0x460 > [ 140.005323] [<c036da6c>] platform_drv_probe+0x4c/0xb0 > [ 140.012267] [<c036c2ac>] > driver_probe_device+0x20c/0x2b8 > [ 140.019472] [<c036a644>] bus_for_each_drv+0x60/0x94 > [ 140.026242] [<c036bfc0>] __device_attach+0xb4/0x118 > [ 140.033013] [<c036b464>] bus_probe_device+0x88/0x90 > [ 140.039783] [<c036b900>] > deferred_probe_work_func+0x6c/0x9c > [ 140.047248] [<c0043408>] process_one_work+0x1a8/0x514 > [ 140.054192] [<c00437ac>] worker_thread+0x38/0x574 > [ 140.060789] [<c0049c0c>] kthread+0xf4/0x10c > [ 140.066865] [<c000f890>] ret_from_fork+0x14/0x24 > [ 140.073376] SOFTIRQ-ON-W at: > [ 140.076587] [<c066b89c>] _raw_spin_lock+0x3c/0x74 > [ 140.083183] [<c0500558>] i2s_set_sysclk+0x40/0x464 > [ 140.089867] [<c0500e0c>] > samsung_i2s_dai_probe+0x238/0x2b0 > [ 140.097245] [<c04ed5f8>] soc_probe_dai.part.2+0x30/0x6c > [ 140.104362] [<c04ee1b8>] > snd_soc_register_card+0x854/0xe64 > [ 140.111740] [<c04f9b0c>] > devm_snd_soc_register_card+0x38/0x70 > [ 140.119379] [<c04ff0f8>] > asoc_simple_card_probe+0x224/0x460 > [ 140.126843] [<c036da6c>] platform_drv_probe+0x4c/0xb0 > [ 140.133787] [<c036c2ac>] > driver_probe_device+0x20c/0x2b8 > [ 140.140992] [<c036a644>] bus_for_each_drv+0x60/0x94 > [ 140.147762] [<c036bfc0>] __device_attach+0xb4/0x118 > [ 140.154533] [<c036b464>] bus_probe_device+0x88/0x90 > [ 140.161303] [<c036b900>] > deferred_probe_work_func+0x6c/0x9c > [ 140.168768] [<c0043408>] process_one_work+0x1a8/0x514 > [ 140.175712] [<c00437ac>] worker_thread+0x38/0x574 > [ 140.182309] [<c0049c0c>] kthread+0xf4/0x10c > [ 140.188385] [<c000f890>] ret_from_fork+0x14/0x24 > [ 140.194896] INITIAL USE at: > [ 140.198020] [<c066bb14>] > _raw_spin_lock_irqsave+0x48/0x84 > [ 140.205224] [<c04c2d44>] clk_divider_set_rate+0x40/0xc0 > [ 140.212255] [<c04c1320>] clk_change_rate+0x17c/0x210 > [ 140.219025] [<c04c12b8>] clk_change_rate+0x114/0x210 > [ 140.225796] } > [ 140.227532] ... key at: [<c13e2f04>] __key.37532+0x0/0x8 > [ 140.233435] ... acquired at: > [ 140.236472] [<c04ffb18>] i2s_trigger+0x40/0x62c > [ 140.241246] [<c04f4d14>] soc_pcm_trigger+0xd0/0x11c > [ 140.246367] [<c04dfe58>] snd_pcm_action_single+0x38/0x80 > [ 140.251922] [<c04e1dac>] snd_pcm_common_ioctl1+0x3bc/0xe20 > [ 140.257651] [<c04e29b4>] snd_pcm_playback_ioctl1+0x1a4/0x69c > [ 140.263553] [<c01343f8>] do_vfs_ioctl+0xa0/0x9d4 > [ 140.268414] [<c0134d60>] SyS_ioctl+0x34/0x5c > [ 140.272927] [<c000f800>] ret_fast_syscall+0x0/0x1c > [ 140.277962] > [ 140.279438] -> (&(&substream->self_group.lock)->rlock){..-...} ops: 153 { > [ 140.286209] IN-SOFTIRQ-W at: > [ 140.289333] [<c066b89c>] _raw_spin_lock+0x3c/0x74 > [ 140.295757] [<c04e03cc>] > _snd_pcm_stream_lock_irqsave+0x34/0x40 > [ 140.303395] [<c04e6f44>] snd_pcm_period_elapsed+0x1c/0xa0 > [ 140.310512] [<c02de5b0>] pl330_tasklet+0x198/0x518 > [ 140.317022] [<c002e424>] tasklet_action+0xac/0x164 > [ 140.323532] [<c002e6ac>] __do_softirq+0x168/0x2c0 > [ 140.329955] [<c002eba8>] irq_exit+0xec/0x128 > [ 140.335945] [<c0087314>] __handle_domain_irq+0x80/0xec > [ 140.342802] [<c0009514>] gic_handle_irq+0x54/0x94 > [ 140.349225] [<c00144f8>] __irq_svc+0x58/0x98 > [ 140.355214] [<c00102f8>] arch_cpu_idle+0x24/0x3c > [ 140.361551] [<c00102f8>] arch_cpu_idle+0x24/0x3c > [ 140.367887] [<c006d5d4>] cpu_startup_entry+0x1f4/0x280 > [ 140.374744] [<c08c8ccc>] start_kernel+0x3ec/0x3f8 > [ 140.381169] INITIAL USE at: > [ 140.384205] [<c066b89c>] _raw_spin_lock+0x3c/0x74 > [ 140.390542] [<c04e0850>] snd_pcm_sync_ptr+0xf8/0x1e0 > [ 140.397139] [<c04e1e68>] snd_pcm_common_ioctl1+0x478/0xe20 > [ 140.404256] [<c04e3078>] > snd_pcm_capture_ioctl1+0x1a4/0x688 > [ 140.411461] [<c01343f8>] do_vfs_ioctl+0xa0/0x9d4 > [ 140.417710] [<c0134d60>] SyS_ioctl+0x34/0x5c > [ 140.423613] [<c000f800>] ret_fast_syscall+0x0/0x1c > [ 140.430036] } > [ 140.431685] ... key at: [<c13e2be8>] __key.29136+0x0/0x8 > [ 140.437501] ... acquired at: > [ 140.440452] [<c0079630>] __lock_acquire+0x774/0x1ee0 > [ 140.445659] [<c007b390>] lock_acquire+0xa8/0xd0 > [ 140.450433] [<c066b89c>] _raw_spin_lock+0x3c/0x74 > [ 140.455381] [<c04e03cc>] _snd_pcm_stream_lock_irqsave+0x34/0x40 > [ 140.461544] [<c04e6f44>] snd_pcm_period_elapsed+0x1c/0xa0 > [ 140.467186] [<c02de5b0>] pl330_tasklet+0x198/0x518 > [ 140.472220] [<c002e424>] tasklet_action+0xac/0x164 > [ 140.477255] [<c002e6ac>] __do_softirq+0x168/0x2c0 > [ 140.482202] [<c002eba8>] irq_exit+0xec/0x128 > [ 140.486716] [<c0087314>] __handle_domain_irq+0x80/0xec > [ 140.492097] [<c0009514>] gic_handle_irq+0x54/0x94 > [ 140.497044] [<c00144f8>] __irq_svc+0x58/0x98 > [ 140.501559] [<c00102f8>] arch_cpu_idle+0x24/0x3c > [ 140.506420] [<c00102f8>] arch_cpu_idle+0x24/0x3c > [ 140.511280] [<c006d5d4>] cpu_startup_entry+0x1f4/0x280 > [ 140.516662] [<c08c8ccc>] start_kernel+0x3ec/0x3f8 > [ 140.521609] > [ 140.523086] > [ 140.523086] stack backtrace: > [ 140.527435] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W > 4.5.0-rc3-u3s #11 > [ 140.535240] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) > [ 140.541339] [<c0016d6c>] (unwind_backtrace) from [<c00139f8>] > (show_stack+0x10/0x14) > [ 140.549063] [<c00139f8>] (show_stack) from [<c0283884>] > (dump_stack+0x98/0xc4) > [ 140.556263] [<c0283884>] (dump_stack) from [<c0075458>] > (print_irq_inversion_bug+0x1d4/0x21c) > [ 140.564766] [<c0075458>] (print_irq_inversion_bug) from > [<c0075550>] (check_usage_forwards+0xb0/0x10c) > [ 140.574051] [<c0075550>] (check_usage_forwards) from [<c00764f8>] > (mark_lock+0x370/0x81c) > [ 140.582211] [<c00764f8>] (mark_lock) from [<c0079630>] > (__lock_acquire+0x774/0x1ee0) > [ 140.589936] [<c0079630>] (__lock_acquire) from [<c007b390>] > (lock_acquire+0xa8/0xd0) > [ 140.597665] [<c007b390>] (lock_acquire) from [<c066b89c>] > (_raw_spin_lock+0x3c/0x74) > [ 140.605389] [<c066b89c>] (_raw_spin_lock) from [<c04e03cc>] > (_snd_pcm_stream_lock_irqsave+0x34/0x40) > [ 140.614503] [<c04e03cc>] (_snd_pcm_stream_lock_irqsave) from > [<c04e6f44>] (snd_pcm_period_elapsed+0x1c/0xa0) > [ 140.624313] [<c04e6f44>] (snd_pcm_period_elapsed) from [<c02de5b0>] > (pl330_tasklet+0x198/0x518) > [ 140.632993] [<c02de5b0>] (pl330_tasklet) from [<c002e424>] > (tasklet_action+0xac/0x164) > [ 140.640890] [<c002e424>] (tasklet_action) from [<c002e6ac>] > (__do_softirq+0x168/0x2c0) > [ 140.648787] [<c002e6ac>] (__do_softirq) from [<c002eba8>] > (irq_exit+0xec/0x128) > [ 140.656080] [<c002eba8>] (irq_exit) from [<c0087314>] > (__handle_domain_irq+0x80/0xec) > [ 140.663889] [<c0087314>] (__handle_domain_irq) from [<c0009514>] > (gic_handle_irq+0x54/0x94) > [ 140.672219] [<c0009514>] (gic_handle_irq) from [<c00144f8>] > (__irq_svc+0x58/0x98) > [ 140.679677] Exception stack(0xc0aa5f50 to 0xc0aa5f98) > [ 140.684716] 5f40: 00000000 > 2e0b1000 00000000 c0aaa540 > [ 140.692879] 5f60: c0aa4000 c0aa655c 00000000 00000000 c0aa5fa8 > c093d49c c0aa65bc c0aa65c4 > [ 140.701035] 5f80: 00000000 c0aa5fa0 c0076b38 c00102f8 20030053 ffffffff > [ 140.707637] [<c00144f8>] (__irq_svc) from [<c00102f8>] > (arch_cpu_idle+0x24/0x3c) > [ 140.715014] [<c00102f8>] (arch_cpu_idle) from [<c006d5d4>] > (cpu_startup_entry+0x1f4/0x280) > [ 140.723265] [<c006d5d4>] (cpu_startup_entry) from [<c08c8ccc>] > (start_kernel+0x3ec/0x3f8) > > Best Regards > -Anand Moon > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in > the body of a message to majordomo at vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > ^ permalink raw reply [flat|nested] 4+ messages in thread
* lockdep: INFO: possible irq lock inversion dependency detected on Odroid U3 2016-02-14 8:52 ` Krzysztof Kozlowski @ 2016-02-14 11:46 ` Anand Moon 2016-02-14 19:12 ` Anand Moon 1 sibling, 0 replies; 4+ messages in thread From: Anand Moon @ 2016-02-14 11:46 UTC (permalink / raw) To: linux-arm-kernel Hi Krzysztof, On 14 February 2016 at 14:22, Krzysztof Kozlowski <k.kozlowski@samsung.com> wrote: > W dniu 10.02.2016 o 16:27, Anand Moon pisze: >> Hi all, >> >> I am observing following lockdep info. > > Hi, > > Thanks for report. When pasting dmesg output, please do not wrap the > lines because it is difficult to read it. > > This looks like known issue: > https://wiki.tizen.org/wiki/Exynos_Mainline_Kernel_TODO/Odroid_XU3_lockdep_warn_during_music_playback > > Waiting for someone brave enough to fix it... > > But actually more important item is following real lockup, failing > multi_v7 boot ~20% of times: > http://www.krzk.eu/builders/boot-odroid-xu3-multi_v7/builds/34 > http://www.krzk.eu/builders/boot-odroid-xu3-multi_v7 > > Best regards, > Krzysztof > Next time I will be much cleaner logs. Thanks for the conformation on this, well I have tried to solve this issue, but failed. >From my understanding it's like IRQ locks that are being hold up by the pl330 dma module. But this module also have related to serial driver. So I got but stuck up. Well I will keep on trying, If I have some thing I will share that. -Anand Moon >> >> [ 139.806823] ========================================================= >> [ 139.811934] [ INFO: possible irq lock inversion dependency detected ] >> [ 139.818362] 4.5.0-rc3-u3s #11 Tainted: G W >> [ 139.823566] --------------------------------------------------------- >> [ 139.829990] swapper/0/0 just changed the state of lock: >> [ 139.835197] (&(&substream->self_group.lock)->rlock){..-...}, at: >> [<c04e03cc>] _snd_pcm_stream_lock_irqsave+0x34/0x40 >> [ 139.845788] but this lock took another, SOFTIRQ-unsafe lock in the past: >> [ 139.852468] (&(&pri_dai->spinlock)->rlock){+.+...} >> >> and interrupts could create inverse lock ordering between them. >> >> [ 139.863319] >> [ 139.863319] other info that might help us debug this: >> [ 139.869830] Possible interrupt unsafe locking scenario: >> [ 139.869830] >> [ 139.876599] CPU0 CPU1 >> [ 139.881113] ---- ---- >> [ 139.885626] lock(&(&pri_dai->spinlock)->rlock); >> [ 139.890314] local_irq_disable(); >> [ 139.896216] >> lock(&(&substream->self_group.lock)->rlock); >> [ 139.904201] >> lock(&(&pri_dai->spinlock)->rlock); >> [ 139.911405] <Interrupt> >> [ 139.914009] lock(&(&substream->self_group.lock)->rlock); >> [ 139.919652] >> [ 139.919652] *** DEADLOCK *** >> [ 139.919652] >> [ 139.925558] 1 lock held by swapper/0/0: >> [ 139.929374] #0: (snd_pcm_link_rwlock){...-..}, at: [<c04e0330>] >> snd_pcm_stream_lock+0x20/0x50 >> [ 139.938054] >> [ 139.938054] the shortest dependencies between 2nd lock and 1st lock: >> [ 139.945893] -> (&(&pri_dai->spinlock)->rlock){+.+...} ops: 37 { >> [ 139.951856] HARDIRQ-ON-W at: >> [ 139.955067] [<c066b89c>] _raw_spin_lock+0x3c/0x74 >> [ 139.961663] [<c0500558>] i2s_set_sysclk+0x40/0x464 >> [ 139.968347] [<c0500e0c>] >> samsung_i2s_dai_probe+0x238/0x2b0 >> [ 139.975725] [<c04ed5f8>] soc_probe_dai.part.2+0x30/0x6c >> [ 139.982842] [<c04ee1b8>] >> snd_soc_register_card+0x854/0xe64 >> [ 139.990220] [<c04f9b0c>] >> devm_snd_soc_register_card+0x38/0x70 >> [ 139.997859] [<c04ff0f8>] >> asoc_simple_card_probe+0x224/0x460 >> [ 140.005323] [<c036da6c>] platform_drv_probe+0x4c/0xb0 >> [ 140.012267] [<c036c2ac>] >> driver_probe_device+0x20c/0x2b8 >> [ 140.019472] [<c036a644>] bus_for_each_drv+0x60/0x94 >> [ 140.026242] [<c036bfc0>] __device_attach+0xb4/0x118 >> [ 140.033013] [<c036b464>] bus_probe_device+0x88/0x90 >> [ 140.039783] [<c036b900>] >> deferred_probe_work_func+0x6c/0x9c >> [ 140.047248] [<c0043408>] process_one_work+0x1a8/0x514 >> [ 140.054192] [<c00437ac>] worker_thread+0x38/0x574 >> [ 140.060789] [<c0049c0c>] kthread+0xf4/0x10c >> [ 140.066865] [<c000f890>] ret_from_fork+0x14/0x24 >> [ 140.073376] SOFTIRQ-ON-W at: >> [ 140.076587] [<c066b89c>] _raw_spin_lock+0x3c/0x74 >> [ 140.083183] [<c0500558>] i2s_set_sysclk+0x40/0x464 >> [ 140.089867] [<c0500e0c>] >> samsung_i2s_dai_probe+0x238/0x2b0 >> [ 140.097245] [<c04ed5f8>] soc_probe_dai.part.2+0x30/0x6c >> [ 140.104362] [<c04ee1b8>] >> snd_soc_register_card+0x854/0xe64 >> [ 140.111740] [<c04f9b0c>] >> devm_snd_soc_register_card+0x38/0x70 >> [ 140.119379] [<c04ff0f8>] >> asoc_simple_card_probe+0x224/0x460 >> [ 140.126843] [<c036da6c>] platform_drv_probe+0x4c/0xb0 >> [ 140.133787] [<c036c2ac>] >> driver_probe_device+0x20c/0x2b8 >> [ 140.140992] [<c036a644>] bus_for_each_drv+0x60/0x94 >> [ 140.147762] [<c036bfc0>] __device_attach+0xb4/0x118 >> [ 140.154533] [<c036b464>] bus_probe_device+0x88/0x90 >> [ 140.161303] [<c036b900>] >> deferred_probe_work_func+0x6c/0x9c >> [ 140.168768] [<c0043408>] process_one_work+0x1a8/0x514 >> [ 140.175712] [<c00437ac>] worker_thread+0x38/0x574 >> [ 140.182309] [<c0049c0c>] kthread+0xf4/0x10c >> [ 140.188385] [<c000f890>] ret_from_fork+0x14/0x24 >> [ 140.194896] INITIAL USE at: >> [ 140.198020] [<c066bb14>] >> _raw_spin_lock_irqsave+0x48/0x84 >> [ 140.205224] [<c04c2d44>] clk_divider_set_rate+0x40/0xc0 >> [ 140.212255] [<c04c1320>] clk_change_rate+0x17c/0x210 >> [ 140.219025] [<c04c12b8>] clk_change_rate+0x114/0x210 >> [ 140.225796] } >> [ 140.227532] ... key at: [<c13e2f04>] __key.37532+0x0/0x8 >> [ 140.233435] ... acquired at: >> [ 140.236472] [<c04ffb18>] i2s_trigger+0x40/0x62c >> [ 140.241246] [<c04f4d14>] soc_pcm_trigger+0xd0/0x11c >> [ 140.246367] [<c04dfe58>] snd_pcm_action_single+0x38/0x80 >> [ 140.251922] [<c04e1dac>] snd_pcm_common_ioctl1+0x3bc/0xe20 >> [ 140.257651] [<c04e29b4>] snd_pcm_playback_ioctl1+0x1a4/0x69c >> [ 140.263553] [<c01343f8>] do_vfs_ioctl+0xa0/0x9d4 >> [ 140.268414] [<c0134d60>] SyS_ioctl+0x34/0x5c >> [ 140.272927] [<c000f800>] ret_fast_syscall+0x0/0x1c >> [ 140.277962] >> [ 140.279438] -> (&(&substream->self_group.lock)->rlock){..-...} ops: 153 { >> [ 140.286209] IN-SOFTIRQ-W at: >> [ 140.289333] [<c066b89c>] _raw_spin_lock+0x3c/0x74 >> [ 140.295757] [<c04e03cc>] >> _snd_pcm_stream_lock_irqsave+0x34/0x40 >> [ 140.303395] [<c04e6f44>] snd_pcm_period_elapsed+0x1c/0xa0 >> [ 140.310512] [<c02de5b0>] pl330_tasklet+0x198/0x518 >> [ 140.317022] [<c002e424>] tasklet_action+0xac/0x164 >> [ 140.323532] [<c002e6ac>] __do_softirq+0x168/0x2c0 >> [ 140.329955] [<c002eba8>] irq_exit+0xec/0x128 >> [ 140.335945] [<c0087314>] __handle_domain_irq+0x80/0xec >> [ 140.342802] [<c0009514>] gic_handle_irq+0x54/0x94 >> [ 140.349225] [<c00144f8>] __irq_svc+0x58/0x98 >> [ 140.355214] [<c00102f8>] arch_cpu_idle+0x24/0x3c >> [ 140.361551] [<c00102f8>] arch_cpu_idle+0x24/0x3c >> [ 140.367887] [<c006d5d4>] cpu_startup_entry+0x1f4/0x280 >> [ 140.374744] [<c08c8ccc>] start_kernel+0x3ec/0x3f8 >> [ 140.381169] INITIAL USE at: >> [ 140.384205] [<c066b89c>] _raw_spin_lock+0x3c/0x74 >> [ 140.390542] [<c04e0850>] snd_pcm_sync_ptr+0xf8/0x1e0 >> [ 140.397139] [<c04e1e68>] snd_pcm_common_ioctl1+0x478/0xe20 >> [ 140.404256] [<c04e3078>] >> snd_pcm_capture_ioctl1+0x1a4/0x688 >> [ 140.411461] [<c01343f8>] do_vfs_ioctl+0xa0/0x9d4 >> [ 140.417710] [<c0134d60>] SyS_ioctl+0x34/0x5c >> [ 140.423613] [<c000f800>] ret_fast_syscall+0x0/0x1c >> [ 140.430036] } >> [ 140.431685] ... key at: [<c13e2be8>] __key.29136+0x0/0x8 >> [ 140.437501] ... acquired at: >> [ 140.440452] [<c0079630>] __lock_acquire+0x774/0x1ee0 >> [ 140.445659] [<c007b390>] lock_acquire+0xa8/0xd0 >> [ 140.450433] [<c066b89c>] _raw_spin_lock+0x3c/0x74 >> [ 140.455381] [<c04e03cc>] _snd_pcm_stream_lock_irqsave+0x34/0x40 >> [ 140.461544] [<c04e6f44>] snd_pcm_period_elapsed+0x1c/0xa0 >> [ 140.467186] [<c02de5b0>] pl330_tasklet+0x198/0x518 >> [ 140.472220] [<c002e424>] tasklet_action+0xac/0x164 >> [ 140.477255] [<c002e6ac>] __do_softirq+0x168/0x2c0 >> [ 140.482202] [<c002eba8>] irq_exit+0xec/0x128 >> [ 140.486716] [<c0087314>] __handle_domain_irq+0x80/0xec >> [ 140.492097] [<c0009514>] gic_handle_irq+0x54/0x94 >> [ 140.497044] [<c00144f8>] __irq_svc+0x58/0x98 >> [ 140.501559] [<c00102f8>] arch_cpu_idle+0x24/0x3c >> [ 140.506420] [<c00102f8>] arch_cpu_idle+0x24/0x3c >> [ 140.511280] [<c006d5d4>] cpu_startup_entry+0x1f4/0x280 >> [ 140.516662] [<c08c8ccc>] start_kernel+0x3ec/0x3f8 >> [ 140.521609] >> [ 140.523086] >> [ 140.523086] stack backtrace: >> [ 140.527435] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W >> 4.5.0-rc3-u3s #11 >> [ 140.535240] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) >> [ 140.541339] [<c0016d6c>] (unwind_backtrace) from [<c00139f8>] >> (show_stack+0x10/0x14) >> [ 140.549063] [<c00139f8>] (show_stack) from [<c0283884>] >> (dump_stack+0x98/0xc4) >> [ 140.556263] [<c0283884>] (dump_stack) from [<c0075458>] >> (print_irq_inversion_bug+0x1d4/0x21c) >> [ 140.564766] [<c0075458>] (print_irq_inversion_bug) from >> [<c0075550>] (check_usage_forwards+0xb0/0x10c) >> [ 140.574051] [<c0075550>] (check_usage_forwards) from [<c00764f8>] >> (mark_lock+0x370/0x81c) >> [ 140.582211] [<c00764f8>] (mark_lock) from [<c0079630>] >> (__lock_acquire+0x774/0x1ee0) >> [ 140.589936] [<c0079630>] (__lock_acquire) from [<c007b390>] >> (lock_acquire+0xa8/0xd0) >> [ 140.597665] [<c007b390>] (lock_acquire) from [<c066b89c>] >> (_raw_spin_lock+0x3c/0x74) >> [ 140.605389] [<c066b89c>] (_raw_spin_lock) from [<c04e03cc>] >> (_snd_pcm_stream_lock_irqsave+0x34/0x40) >> [ 140.614503] [<c04e03cc>] (_snd_pcm_stream_lock_irqsave) from >> [<c04e6f44>] (snd_pcm_period_elapsed+0x1c/0xa0) >> [ 140.624313] [<c04e6f44>] (snd_pcm_period_elapsed) from [<c02de5b0>] >> (pl330_tasklet+0x198/0x518) >> [ 140.632993] [<c02de5b0>] (pl330_tasklet) from [<c002e424>] >> (tasklet_action+0xac/0x164) >> [ 140.640890] [<c002e424>] (tasklet_action) from [<c002e6ac>] >> (__do_softirq+0x168/0x2c0) >> [ 140.648787] [<c002e6ac>] (__do_softirq) from [<c002eba8>] >> (irq_exit+0xec/0x128) >> [ 140.656080] [<c002eba8>] (irq_exit) from [<c0087314>] >> (__handle_domain_irq+0x80/0xec) >> [ 140.663889] [<c0087314>] (__handle_domain_irq) from [<c0009514>] >> (gic_handle_irq+0x54/0x94) >> [ 140.672219] [<c0009514>] (gic_handle_irq) from [<c00144f8>] >> (__irq_svc+0x58/0x98) >> [ 140.679677] Exception stack(0xc0aa5f50 to 0xc0aa5f98) >> [ 140.684716] 5f40: 00000000 >> 2e0b1000 00000000 c0aaa540 >> [ 140.692879] 5f60: c0aa4000 c0aa655c 00000000 00000000 c0aa5fa8 >> c093d49c c0aa65bc c0aa65c4 >> [ 140.701035] 5f80: 00000000 c0aa5fa0 c0076b38 c00102f8 20030053 ffffffff >> [ 140.707637] [<c00144f8>] (__irq_svc) from [<c00102f8>] >> (arch_cpu_idle+0x24/0x3c) >> [ 140.715014] [<c00102f8>] (arch_cpu_idle) from [<c006d5d4>] >> (cpu_startup_entry+0x1f4/0x280) >> [ 140.723265] [<c006d5d4>] (cpu_startup_entry) from [<c08c8ccc>] >> (start_kernel+0x3ec/0x3f8) >> >> Best Regards >> -Anand Moon >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in >> the body of a message to majordomo at vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > ^ permalink raw reply [flat|nested] 4+ messages in thread
* lockdep: INFO: possible irq lock inversion dependency detected on Odroid U3 2016-02-14 8:52 ` Krzysztof Kozlowski 2016-02-14 11:46 ` Anand Moon @ 2016-02-14 19:12 ` Anand Moon 1 sibling, 0 replies; 4+ messages in thread From: Anand Moon @ 2016-02-14 19:12 UTC (permalink / raw) To: linux-arm-kernel Hi Krzysztof On 14 February 2016 at 14:22, Krzysztof Kozlowski <k.kozlowski@samsung.com> wrote: > W dniu 10.02.2016 o 16:27, Anand Moon pisze: >> Hi all, >> >> I am observing following lockdep info. > > Hi, > > Thanks for report. When pasting dmesg output, please do not wrap the > lines because it is difficult to read it. > > This looks like known issue: > https://wiki.tizen.org/wiki/Exynos_Mainline_Kernel_TODO/Odroid_XU3_lockdep_warn_during_music_playback > > Waiting for someone brave enough to fix it... > > But actually more important item is following real lockup, failing > multi_v7 boot ~20% of times: > http://www.krzk.eu/builders/boot-odroid-xu3-multi_v7/builds/34 > http://www.krzk.eu/builders/boot-odroid-xu3-multi_v7 > > Best regards, > Krzysztof > I have manage to fix the issue using below changes. root at odroidu3:/usr/src/odroidxu3-4.y-devel# git diff drivers/dma/pl330.c diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 17ee758..b651443 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -1973,10 +1973,9 @@ static void pl330_tasklet(unsigned long data) { struct dma_pl330_chan *pch = (struct dma_pl330_chan *)data; struct dma_pl330_desc *desc, *_dt; - unsigned long flags; bool power_down = false; - spin_lock_irqsave(&pch->lock, flags); + spin_lock_irq(&pch->lock); /* Pick up ripe tomatoes */ list_for_each_entry_safe(desc, _dt, &pch->work_list, node) @@ -2028,12 +2027,12 @@ static void pl330_tasklet(unsigned long data) dma_descriptor_unmap(&desc->txd); if (callback) { - spin_unlock_irqrestore(&pch->lock, flags); + spin_unlock_irq(&pch->lock); callback(callback_param); - spin_lock_irqsave(&pch->lock, flags); + spin_lock_irq(&pch->lock); } } - spin_unlock_irqrestore(&pch->lock, flags); + spin_unlock_irq(&pch->lock); /* If work list empty, power down */ if (power_down) { @@ -2091,10 +2090,10 @@ static int pl330_alloc_chan_resources(struct dma_chan *chan) return -ENOMEM; } - tasklet_init(&pch->task, pl330_tasklet, (unsigned long) pch); - spin_unlock_irqrestore(&pch->lock, flags); + tasklet_init(&pch->task, pl330_tasklet, (unsigned long) pch); + return 1; } ------ Test on Odroid U3. But below changes introduce below WARNING. [ 14.818967] ------------[ cut here ]------------ [ 14.819517] WARNING: CPU: 0 PID: 486 at kernel/locking/lockdep.c:2608 _raw_spin_unlock_irq+0x24/0x5c() [ 14.828791] DEBUG_LOCKS_WARN_ON(current->hardirq_context) [ 14.833995] Modules linked in: [ 14.837209] CPU: 0 PID: 486 Comm: plymouth Tainted: G W 4.5.0-rc3-xu3s #55 [ 14.845191] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) [ 14.851282] [<c0016eac>] (unwind_backtrace) from [<c0013b30>] (show_stack+0x10/0x14) [ 14.859001] [<c0013b30>] (show_stack) from [<c02943e4>] (dump_stack+0x98/0xc4) [ 14.866204] [<c02943e4>] (dump_stack) from [<c0029fcc>] (warn_slowpath_common+0x80/0xb0) [ 14.874273] [<c0029fcc>] (warn_slowpath_common) from [<c002a02c>] (warn_slowpath_fmt+0x30/0x40) [ 14.882956] [<c002a02c>] (warn_slowpath_fmt) from [<c068029c>] (_raw_spin_unlock_irq+0x24/0x5c) [ 14.891637] [<c068029c>] (_raw_spin_unlock_irq) from [<c02ef1c8>] (pl330_tasklet+0x1a8/0x504) [ 14.900142] [<c02ef1c8>] (pl330_tasklet) from [<c0325028>] (s3c24xx_serial_start_tx_dma+0x154/0x198) [ 14.909253] [<c0325028>] (s3c24xx_serial_start_tx_dma) from [<c032526c>] (s3c24xx_serial_tx_chars+0x200/0x204) [ 14.919236] [<c032526c>] (s3c24xx_serial_tx_chars) from [<c03265a8>] (s3c64xx_serial_handle_irq+0x34/0x60) [ 14.928873] [<c03265a8>] (s3c64xx_serial_handle_irq) from [<c0087e48>] (handle_irq_event_percpu+0x9c/0x150) [ 14.938593] [<c0087e48>] (handle_irq_event_percpu) from [<c0087f34>] (handle_irq_event+0x38/0x5c) [ 14.947446] [<c0087f34>] (handle_irq_event) from [<c008b1f4>] (handle_fasteoi_irq+0xd0/0x1a8) [ 14.955952] [<c008b1f4>] (handle_fasteoi_irq) from [<c0087464>] (generic_handle_irq+0x24/0x34) [ 14.964545] [<c0087464>] (generic_handle_irq) from [<c0087778>] (__handle_domain_irq+0x7c/0xec) [ 14.973225] [<c0087778>] (__handle_domain_irq) from [<c0009514>] (gic_handle_irq+0x54/0x94) [ 14.981557] [<c0009514>] (gic_handle_irq) from [<c0014638>] (__irq_svc+0x58/0x98) [ 14.989019] Exception stack(0xed385e90 to 0xed385ed8) [ 14.994055] 5e80: 00000000 2e07c000 00000000 edb4e480 [ 15.002215] 5ea0: 00000053 c136c014 ed048780 ed048800 c136c014 c0adb108 ed048000 00000002 [ 15.010373] 5ec0: 00000000 ed385ee0 c0076edc c0680274 20000053 ffffffff [ 15.016973] [<c0014638>] (__irq_svc) from [<c0680274>] (_raw_spin_unlock_irqrestore+0x70/0x74) [ 15.025569] [<c0680274>] (_raw_spin_unlock_irqrestore) from [<c02bd7a4>] (__debug_check_no_obj_freed+0x128/0x220) [ 15.035811] [<c02bd7a4>] (__debug_check_no_obj_freed) from [<c0127940>] (kmem_cache_free+0x150/0x1ec) [ 15.045011] [<c0127940>] (kmem_cache_free) from [<c002bd70>] (do_exit+0x32c/0xaf4) [ 15.052560] [<c002bd70>] (do_exit) from [<c002dbc0>] (do_group_exit+0x3c/0xbc) [ 15.059764] [<c002dbc0>] (do_group_exit) from [<c002dc50>] (__wake_up_parent+0x0/0x18) [ 15.067660] ---[ end trace 27c09e22f2a7458b ]--- Any comments are valuable. Best Regards. -Anand Moon ^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2016-02-14 19:12 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2016-02-10 7:27 lockdep: INFO: possible irq lock inversion dependency detected on Odroid U3 Anand Moon 2016-02-14 8:52 ` Krzysztof Kozlowski 2016-02-14 11:46 ` Anand Moon 2016-02-14 19:12 ` Anand Moon
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