From mboxrd@z Thu Jan 1 00:00:00 1970 From: Krzysztof Kozlowski Subject: Re: lockdep: INFO: possible irq lock inversion dependency detected on Odroid U3 Date: Sun, 14 Feb 2016 17:52:30 +0900 Message-ID: <56C0404E.7080707@samsung.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pf0-f173.google.com ([209.85.192.173]:35878 "EHLO mail-pf0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751472AbcBNIwg (ORCPT ); Sun, 14 Feb 2016 03:52:36 -0500 Received: by mail-pf0-f173.google.com with SMTP id e127so70894603pfe.3 for ; Sun, 14 Feb 2016 00:52:36 -0800 (PST) In-Reply-To: Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Anand Moon , Javier Martinez Canillas , Marek Szyprowski , Kukjin Kim Cc: k.kozlowski.k@gmail.com, "linux-samsung-soc@vger.kernel.org" , linux-arm-kernel@lists.infradead.org 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: > [] _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] > [ 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: [] > 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] [] _raw_spin_lock+0x3c/0x74 > [ 139.961663] [] i2s_set_sysclk+0x40/0x464 > [ 139.968347] [] > samsung_i2s_dai_probe+0x238/0x2b0 > [ 139.975725] [] soc_probe_dai.part.2+0x30/0x6c > [ 139.982842] [] > snd_soc_register_card+0x854/0xe64 > [ 139.990220] [] > devm_snd_soc_register_card+0x38/0x70 > [ 139.997859] [] > asoc_simple_card_probe+0x224/0x460 > [ 140.005323] [] platform_drv_probe+0x4c/0xb0 > [ 140.012267] [] > driver_probe_device+0x20c/0x2b8 > [ 140.019472] [] bus_for_each_drv+0x60/0x94 > [ 140.026242] [] __device_attach+0xb4/0x118 > [ 140.033013] [] bus_probe_device+0x88/0x90 > [ 140.039783] [] > deferred_probe_work_func+0x6c/0x9c > [ 140.047248] [] process_one_work+0x1a8/0x514 > [ 140.054192] [] worker_thread+0x38/0x574 > [ 140.060789] [] kthread+0xf4/0x10c > [ 140.066865] [] ret_from_fork+0x14/0x24 > [ 140.073376] SOFTIRQ-ON-W at: > [ 140.076587] [] _raw_spin_lock+0x3c/0x74 > [ 140.083183] [] i2s_set_sysclk+0x40/0x464 > [ 140.089867] [] > samsung_i2s_dai_probe+0x238/0x2b0 > [ 140.097245] [] soc_probe_dai.part.2+0x30/0x6c > [ 140.104362] [] > snd_soc_register_card+0x854/0xe64 > [ 140.111740] [] > devm_snd_soc_register_card+0x38/0x70 > [ 140.119379] [] > asoc_simple_card_probe+0x224/0x460 > [ 140.126843] [] platform_drv_probe+0x4c/0xb0 > [ 140.133787] [] > driver_probe_device+0x20c/0x2b8 > [ 140.140992] [] bus_for_each_drv+0x60/0x94 > [ 140.147762] [] __device_attach+0xb4/0x118 > [ 140.154533] [] bus_probe_device+0x88/0x90 > [ 140.161303] [] > deferred_probe_work_func+0x6c/0x9c > [ 140.168768] [] process_one_work+0x1a8/0x514 > [ 140.175712] [] worker_thread+0x38/0x574 > [ 140.182309] [] kthread+0xf4/0x10c > [ 140.188385] [] ret_from_fork+0x14/0x24 > [ 140.194896] INITIAL USE at: > [ 140.198020] [] > _raw_spin_lock_irqsave+0x48/0x84 > [ 140.205224] [] clk_divider_set_rate+0x40/0xc0 > [ 140.212255] [] clk_change_rate+0x17c/0x210 > [ 140.219025] [] clk_change_rate+0x114/0x210 > [ 140.225796] } > [ 140.227532] ... key at: [] __key.37532+0x0/0x8 > [ 140.233435] ... acquired at: > [ 140.236472] [] i2s_trigger+0x40/0x62c > [ 140.241246] [] soc_pcm_trigger+0xd0/0x11c > [ 140.246367] [] snd_pcm_action_single+0x38/0x80 > [ 140.251922] [] snd_pcm_common_ioctl1+0x3bc/0xe20 > [ 140.257651] [] snd_pcm_playback_ioctl1+0x1a4/0x69c > [ 140.263553] [] do_vfs_ioctl+0xa0/0x9d4 > [ 140.268414] [] SyS_ioctl+0x34/0x5c > [ 140.272927] [] ret_fast_syscall+0x0/0x1c > [ 140.277962] > [ 140.279438] -> (&(&substream->self_group.lock)->rlock){..-...} ops: 153 { > [ 140.286209] IN-SOFTIRQ-W at: > [ 140.289333] [] _raw_spin_lock+0x3c/0x74 > [ 140.295757] [] > _snd_pcm_stream_lock_irqsave+0x34/0x40 > [ 140.303395] [] snd_pcm_period_elapsed+0x1c/0xa0 > [ 140.310512] [] pl330_tasklet+0x198/0x518 > [ 140.317022] [] tasklet_action+0xac/0x164 > [ 140.323532] [] __do_softirq+0x168/0x2c0 > [ 140.329955] [] irq_exit+0xec/0x128 > [ 140.335945] [] __handle_domain_irq+0x80/0xec > [ 140.342802] [] gic_handle_irq+0x54/0x94 > [ 140.349225] [] __irq_svc+0x58/0x98 > [ 140.355214] [] arch_cpu_idle+0x24/0x3c > [ 140.361551] [] arch_cpu_idle+0x24/0x3c > [ 140.367887] [] cpu_startup_entry+0x1f4/0x280 > [ 140.374744] [] start_kernel+0x3ec/0x3f8 > [ 140.381169] INITIAL USE at: > [ 140.384205] [] _raw_spin_lock+0x3c/0x74 > [ 140.390542] [] snd_pcm_sync_ptr+0xf8/0x1e0 > [ 140.397139] [] snd_pcm_common_ioctl1+0x478/0xe20 > [ 140.404256] [] > snd_pcm_capture_ioctl1+0x1a4/0x688 > [ 140.411461] [] do_vfs_ioctl+0xa0/0x9d4 > [ 140.417710] [] SyS_ioctl+0x34/0x5c > [ 140.423613] [] ret_fast_syscall+0x0/0x1c > [ 140.430036] } > [ 140.431685] ... key at: [] __key.29136+0x0/0x8 > [ 140.437501] ... acquired at: > [ 140.440452] [] __lock_acquire+0x774/0x1ee0 > [ 140.445659] [] lock_acquire+0xa8/0xd0 > [ 140.450433] [] _raw_spin_lock+0x3c/0x74 > [ 140.455381] [] _snd_pcm_stream_lock_irqsave+0x34/0x40 > [ 140.461544] [] snd_pcm_period_elapsed+0x1c/0xa0 > [ 140.467186] [] pl330_tasklet+0x198/0x518 > [ 140.472220] [] tasklet_action+0xac/0x164 > [ 140.477255] [] __do_softirq+0x168/0x2c0 > [ 140.482202] [] irq_exit+0xec/0x128 > [ 140.486716] [] __handle_domain_irq+0x80/0xec > [ 140.492097] [] gic_handle_irq+0x54/0x94 > [ 140.497044] [] __irq_svc+0x58/0x98 > [ 140.501559] [] arch_cpu_idle+0x24/0x3c > [ 140.506420] [] arch_cpu_idle+0x24/0x3c > [ 140.511280] [] cpu_startup_entry+0x1f4/0x280 > [ 140.516662] [] 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] [] (unwind_backtrace) from [] > (show_stack+0x10/0x14) > [ 140.549063] [] (show_stack) from [] > (dump_stack+0x98/0xc4) > [ 140.556263] [] (dump_stack) from [] > (print_irq_inversion_bug+0x1d4/0x21c) > [ 140.564766] [] (print_irq_inversion_bug) from > [] (check_usage_forwards+0xb0/0x10c) > [ 140.574051] [] (check_usage_forwards) from [] > (mark_lock+0x370/0x81c) > [ 140.582211] [] (mark_lock) from [] > (__lock_acquire+0x774/0x1ee0) > [ 140.589936] [] (__lock_acquire) from [] > (lock_acquire+0xa8/0xd0) > [ 140.597665] [] (lock_acquire) from [] > (_raw_spin_lock+0x3c/0x74) > [ 140.605389] [] (_raw_spin_lock) from [] > (_snd_pcm_stream_lock_irqsave+0x34/0x40) > [ 140.614503] [] (_snd_pcm_stream_lock_irqsave) from > [] (snd_pcm_period_elapsed+0x1c/0xa0) > [ 140.624313] [] (snd_pcm_period_elapsed) from [] > (pl330_tasklet+0x198/0x518) > [ 140.632993] [] (pl330_tasklet) from [] > (tasklet_action+0xac/0x164) > [ 140.640890] [] (tasklet_action) from [] > (__do_softirq+0x168/0x2c0) > [ 140.648787] [] (__do_softirq) from [] > (irq_exit+0xec/0x128) > [ 140.656080] [] (irq_exit) from [] > (__handle_domain_irq+0x80/0xec) > [ 140.663889] [] (__handle_domain_irq) from [] > (gic_handle_irq+0x54/0x94) > [ 140.672219] [] (gic_handle_irq) from [] > (__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] [] (__irq_svc) from [] > (arch_cpu_idle+0x24/0x3c) > [ 140.715014] [] (arch_cpu_idle) from [] > (cpu_startup_entry+0x1f4/0x280) > [ 140.723265] [] (cpu_startup_entry) from [] > (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@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > From mboxrd@z Thu Jan 1 00:00:00 1970 From: k.kozlowski@samsung.com (Krzysztof Kozlowski) Date: Sun, 14 Feb 2016 17:52:30 +0900 Subject: lockdep: INFO: possible irq lock inversion dependency detected on Odroid U3 In-Reply-To: References: Message-ID: <56C0404E.7080707@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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: > [] _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] > [ 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: [] > 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] [] _raw_spin_lock+0x3c/0x74 > [ 139.961663] [] i2s_set_sysclk+0x40/0x464 > [ 139.968347] [] > samsung_i2s_dai_probe+0x238/0x2b0 > [ 139.975725] [] soc_probe_dai.part.2+0x30/0x6c > [ 139.982842] [] > snd_soc_register_card+0x854/0xe64 > [ 139.990220] [] > devm_snd_soc_register_card+0x38/0x70 > [ 139.997859] [] > asoc_simple_card_probe+0x224/0x460 > [ 140.005323] [] platform_drv_probe+0x4c/0xb0 > [ 140.012267] [] > driver_probe_device+0x20c/0x2b8 > [ 140.019472] [] bus_for_each_drv+0x60/0x94 > [ 140.026242] [] __device_attach+0xb4/0x118 > [ 140.033013] [] bus_probe_device+0x88/0x90 > [ 140.039783] [] > deferred_probe_work_func+0x6c/0x9c > [ 140.047248] [] process_one_work+0x1a8/0x514 > [ 140.054192] [] worker_thread+0x38/0x574 > [ 140.060789] [] kthread+0xf4/0x10c > [ 140.066865] [] ret_from_fork+0x14/0x24 > [ 140.073376] SOFTIRQ-ON-W at: > [ 140.076587] [] _raw_spin_lock+0x3c/0x74 > [ 140.083183] [] i2s_set_sysclk+0x40/0x464 > [ 140.089867] [] > samsung_i2s_dai_probe+0x238/0x2b0 > [ 140.097245] [] soc_probe_dai.part.2+0x30/0x6c > [ 140.104362] [] > snd_soc_register_card+0x854/0xe64 > [ 140.111740] [] > devm_snd_soc_register_card+0x38/0x70 > [ 140.119379] [] > asoc_simple_card_probe+0x224/0x460 > [ 140.126843] [] platform_drv_probe+0x4c/0xb0 > [ 140.133787] [] > driver_probe_device+0x20c/0x2b8 > [ 140.140992] [] bus_for_each_drv+0x60/0x94 > [ 140.147762] [] __device_attach+0xb4/0x118 > [ 140.154533] [] bus_probe_device+0x88/0x90 > [ 140.161303] [] > deferred_probe_work_func+0x6c/0x9c > [ 140.168768] [] process_one_work+0x1a8/0x514 > [ 140.175712] [] worker_thread+0x38/0x574 > [ 140.182309] [] kthread+0xf4/0x10c > [ 140.188385] [] ret_from_fork+0x14/0x24 > [ 140.194896] INITIAL USE at: > [ 140.198020] [] > _raw_spin_lock_irqsave+0x48/0x84 > [ 140.205224] [] clk_divider_set_rate+0x40/0xc0 > [ 140.212255] [] clk_change_rate+0x17c/0x210 > [ 140.219025] [] clk_change_rate+0x114/0x210 > [ 140.225796] } > [ 140.227532] ... key at: [] __key.37532+0x0/0x8 > [ 140.233435] ... acquired at: > [ 140.236472] [] i2s_trigger+0x40/0x62c > [ 140.241246] [] soc_pcm_trigger+0xd0/0x11c > [ 140.246367] [] snd_pcm_action_single+0x38/0x80 > [ 140.251922] [] snd_pcm_common_ioctl1+0x3bc/0xe20 > [ 140.257651] [] snd_pcm_playback_ioctl1+0x1a4/0x69c > [ 140.263553] [] do_vfs_ioctl+0xa0/0x9d4 > [ 140.268414] [] SyS_ioctl+0x34/0x5c > [ 140.272927] [] ret_fast_syscall+0x0/0x1c > [ 140.277962] > [ 140.279438] -> (&(&substream->self_group.lock)->rlock){..-...} ops: 153 { > [ 140.286209] IN-SOFTIRQ-W at: > [ 140.289333] [] _raw_spin_lock+0x3c/0x74 > [ 140.295757] [] > _snd_pcm_stream_lock_irqsave+0x34/0x40 > [ 140.303395] [] snd_pcm_period_elapsed+0x1c/0xa0 > [ 140.310512] [] pl330_tasklet+0x198/0x518 > [ 140.317022] [] tasklet_action+0xac/0x164 > [ 140.323532] [] __do_softirq+0x168/0x2c0 > [ 140.329955] [] irq_exit+0xec/0x128 > [ 140.335945] [] __handle_domain_irq+0x80/0xec > [ 140.342802] [] gic_handle_irq+0x54/0x94 > [ 140.349225] [] __irq_svc+0x58/0x98 > [ 140.355214] [] arch_cpu_idle+0x24/0x3c > [ 140.361551] [] arch_cpu_idle+0x24/0x3c > [ 140.367887] [] cpu_startup_entry+0x1f4/0x280 > [ 140.374744] [] start_kernel+0x3ec/0x3f8 > [ 140.381169] INITIAL USE at: > [ 140.384205] [] _raw_spin_lock+0x3c/0x74 > [ 140.390542] [] snd_pcm_sync_ptr+0xf8/0x1e0 > [ 140.397139] [] snd_pcm_common_ioctl1+0x478/0xe20 > [ 140.404256] [] > snd_pcm_capture_ioctl1+0x1a4/0x688 > [ 140.411461] [] do_vfs_ioctl+0xa0/0x9d4 > [ 140.417710] [] SyS_ioctl+0x34/0x5c > [ 140.423613] [] ret_fast_syscall+0x0/0x1c > [ 140.430036] } > [ 140.431685] ... key at: [] __key.29136+0x0/0x8 > [ 140.437501] ... acquired at: > [ 140.440452] [] __lock_acquire+0x774/0x1ee0 > [ 140.445659] [] lock_acquire+0xa8/0xd0 > [ 140.450433] [] _raw_spin_lock+0x3c/0x74 > [ 140.455381] [] _snd_pcm_stream_lock_irqsave+0x34/0x40 > [ 140.461544] [] snd_pcm_period_elapsed+0x1c/0xa0 > [ 140.467186] [] pl330_tasklet+0x198/0x518 > [ 140.472220] [] tasklet_action+0xac/0x164 > [ 140.477255] [] __do_softirq+0x168/0x2c0 > [ 140.482202] [] irq_exit+0xec/0x128 > [ 140.486716] [] __handle_domain_irq+0x80/0xec > [ 140.492097] [] gic_handle_irq+0x54/0x94 > [ 140.497044] [] __irq_svc+0x58/0x98 > [ 140.501559] [] arch_cpu_idle+0x24/0x3c > [ 140.506420] [] arch_cpu_idle+0x24/0x3c > [ 140.511280] [] cpu_startup_entry+0x1f4/0x280 > [ 140.516662] [] 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] [] (unwind_backtrace) from [] > (show_stack+0x10/0x14) > [ 140.549063] [] (show_stack) from [] > (dump_stack+0x98/0xc4) > [ 140.556263] [] (dump_stack) from [] > (print_irq_inversion_bug+0x1d4/0x21c) > [ 140.564766] [] (print_irq_inversion_bug) from > [] (check_usage_forwards+0xb0/0x10c) > [ 140.574051] [] (check_usage_forwards) from [] > (mark_lock+0x370/0x81c) > [ 140.582211] [] (mark_lock) from [] > (__lock_acquire+0x774/0x1ee0) > [ 140.589936] [] (__lock_acquire) from [] > (lock_acquire+0xa8/0xd0) > [ 140.597665] [] (lock_acquire) from [] > (_raw_spin_lock+0x3c/0x74) > [ 140.605389] [] (_raw_spin_lock) from [] > (_snd_pcm_stream_lock_irqsave+0x34/0x40) > [ 140.614503] [] (_snd_pcm_stream_lock_irqsave) from > [] (snd_pcm_period_elapsed+0x1c/0xa0) > [ 140.624313] [] (snd_pcm_period_elapsed) from [] > (pl330_tasklet+0x198/0x518) > [ 140.632993] [] (pl330_tasklet) from [] > (tasklet_action+0xac/0x164) > [ 140.640890] [] (tasklet_action) from [] > (__do_softirq+0x168/0x2c0) > [ 140.648787] [] (__do_softirq) from [] > (irq_exit+0xec/0x128) > [ 140.656080] [] (irq_exit) from [] > (__handle_domain_irq+0x80/0xec) > [ 140.663889] [] (__handle_domain_irq) from [] > (gic_handle_irq+0x54/0x94) > [ 140.672219] [] (gic_handle_irq) from [] > (__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] [] (__irq_svc) from [] > (arch_cpu_idle+0x24/0x3c) > [ 140.715014] [] (arch_cpu_idle) from [] > (cpu_startup_entry+0x1f4/0x280) > [ 140.723265] [] (cpu_startup_entry) from [] > (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 >