INFO: task kworker/1:2:699 blocked for more than 430 seconds. Not tainted 6.3.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:0 pid:699 ppid:2 flags:0x00000000 Workqueue: events rfkill_sync_work Backtrace: [<817d231c>] (__schedule) from [<817d2f90>] (schedule+0x5c/0xac kernel/sched/core.c:6701) r10:dfebde1c r9:00000002 r8:dfebddc4 r7:83135080 r6:dfebde14 r5:dfebde18 r4:83135080 [<817d2f34>] (schedule) from [<817d9d78>] (schedule_timeout+0xd0/0x108 kernel/time/timer.c:2143) r5:dfebde18 r4:7fffffff [<817d9ca8>] (schedule_timeout) from [<817d3c80>] (do_wait_for_common kernel/sched/completion.c:85 [inline]) [<817d9ca8>] (schedule_timeout) from [<817d3c80>] (__wait_for_common kernel/sched/completion.c:106 [inline]) [<817d9ca8>] (schedule_timeout) from [<817d3c80>] (wait_for_common kernel/sched/completion.c:117 [inline]) [<817d9ca8>] (schedule_timeout) from [<817d3c80>] (wait_for_completion+0x70/0x14c kernel/sched/completion.c:138) r6:dfebde14 r5:dfebde18 r4:7fffffff [<817d3c10>] (wait_for_completion) from [<80260084>] (__flush_workqueue+0x118/0x5b4 kernel/workqueue.c:2962) r10:ddde9005 r9:842d3610 r8:842d363c r7:850fe030 r6:842d3600 r5:dfebde08 r4:00000001 [<8025ff6c>] (__flush_workqueue) from [<8173f5e0>] (nci_close_device+0x84/0x124 net/nfc/nci/core.c:579) r10:ddde9005 r9:83135080 r8:00000080 r7:850fe030 r6:850fe018 r5:850fe0c4 r4:850fe000 [<8173f55c>] (nci_close_device) from [<8173f694>] (nci_dev_down+0x14/0x18 net/nfc/nci/core.c:639) r7:ddde9000 r6:00000001 r5:8531d05c r4:8531d000 [<8173f680>] (nci_dev_down) from [<81733b80>] (nfc_dev_down+0x68/0xc8 net/nfc/core.c:161) [<81733b18>] (nfc_dev_down) from [<81733c0c>] (nfc_rfkill_set_block+0x2c/0x68 net/nfc/core.c:179) r7:ddde9000 r6:00000001 r5:8531d000 r4:00000001 [<81733be0>] (nfc_rfkill_set_block) from [<816f10f8>] (rfkill_set_block+0x90/0x144 net/rfkill/core.c:345) r5:00000000 r4:8531c800 [<816f1068>] (rfkill_set_block) from [<816f1538>] (rfkill_sync_work+0x3c/0x48 net/rfkill/core.c:1042) r7:ddde9000 r6:ddde5880 r5:8531ca7c r4:825d2ecc [<816f14fc>] (rfkill_sync_work) from [<802634a8>] (process_one_work+0x20c/0x594 kernel/workqueue.c:2390) r5:833f7e00 r4:8531ca7c [<8026329c>] (process_one_work) from [<80263c98>] (worker_thread+0x6c/0x4e0 kernel/workqueue.c:2537) r10:ddde5880 r9:00000008 r8:82404d40 r7:ddde589c r6:833f7e18 r5:ddde5880 r4:833f7e00 [<80263c2c>] (worker_thread) from [<8026abc0>] (kthread+0xec/0x11c kernel/kthread.c:376) r10:00000000 r9:df871e8c r8:83383c00 r7:833f7e00 r6:80263c2c r5:83135080 r4:83192e40 [<8026aad4>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:133) Exception stack(0xdfebdfb0 to 0xdfebdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026aad4 r4:83192e40 INFO: task kworker/u4:2:29599 blocked for more than 430 seconds. Not tainted 6.3.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:2 state:D stack:0 pid:29599 ppid:2 flags:0x00000000 Workqueue: nfc2_nci_rx_wq nci_rx_work Backtrace: [<817d231c>] (__schedule) from [<817d2f90>] (schedule+0x5c/0xac kernel/sched/core.c:6701) r10:8385d205 r9:8240c498 r8:8531d060 r7:e863dd9c r6:00000002 r5:828f2e00 r4:828f2e00 [<817d2f34>] (schedule) from [<817d3520>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6760) r5:828f2e00 r4:8531d05c [<817d3508>] (schedule_preempt_disabled) from [<817d5f1c>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817d3508>] (schedule_preempt_disabled) from [<817d5f1c>] (__mutex_lock.constprop.0+0x2f4/0xaf4 kernel/locking/mutex.c:747) [<817d5c28>] (__mutex_lock.constprop.0) from [<817d67f0>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:8385d205 r9:81a4e8d4 r8:8531d05c r7:00000000 r6:00000000 r5:850fe0fc r4:8531d000 [<817d67dc>] (__mutex_lock_slowpath) from [<817d6830>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817d67f4>] (mutex_lock) from [<81732d70>] (device_lock include/linux/device.h:832 [inline]) [<817d67f4>] (mutex_lock) from [<81732d70>] (nfc_targets_found+0x5c/0x12c net/nfc/core.c:778) [<81732d14>] (nfc_targets_found) from [<81742e48>] (nci_rf_discover_ntf_packet net/nfc/nci/ntf.c:390 [inline]) [<81732d14>] (nfc_targets_found) from [<81742e48>] (nci_ntf_packet+0x940/0xe18 net/nfc/nci/ntf.c:798) r8:00000001 r7:00000000 r6:850fe000 r5:851b19c0 r4:00000103 [<81742508>] (nci_ntf_packet) from [<8173fc24>] (nci_rx_work+0x70/0xe8 net/nfc/nci/core.c:1517) r10:8385d205 r9:81a4e8d4 r8:81f53d34 r7:850fe0a4 r6:850fe070 r5:850fe000 r4:851b19c0 [<8173fbb4>] (nci_rx_work) from [<802634a8>] (process_one_work+0x20c/0x594 kernel/workqueue.c:2390) r9:828f2e00 r8:00000100 r7:8385d200 r6:8280e800 r5:84d36e80 r4:850fe070 [<8026329c>] (process_one_work) from [<80263c98>] (worker_thread+0x6c/0x4e0 kernel/workqueue.c:2537) r10:8280e800 r9:00000088 r8:82404d40 r7:8280e81c r6:84d36e98 r5:8280e800 r4:84d36e80 [<80263c2c>] (worker_thread) from [<8026abc0>] (kthread+0xec/0x11c kernel/kthread.c:376) r10:00000000 r9:df93de8c r8:84d30780 r7:84d36e80 r6:80263c2c r5:828f2e00 r4:8501bf80 [<8026aad4>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:133) Exception stack(0xe863dfb0 to 0xe863dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026aad4 r4:8501bf80 INFO: task kworker/1:0:30743 blocked for more than 430 seconds. Not tainted 6.3.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:0 pid:30743 ppid:2 flags:0x00000000 Workqueue: events rfkill_global_led_trigger_worker Backtrace: [<817d231c>] (__schedule) from [<817d2f90>] (schedule+0x5c/0xac kernel/sched/core.c:6701) r10:ddde9005 r9:8240c498 r8:825d2ed0 r7:eda5de84 r6:00000002 r5:8419dc00 r4:8419dc00 [<817d2f34>] (schedule) from [<817d3520>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6760) r5:8419dc00 r4:825d2ecc [<817d3508>] (schedule_preempt_disabled) from [<817d5f1c>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817d3508>] (schedule_preempt_disabled) from [<817d5f1c>] (__mutex_lock.constprop.0+0x2f4/0xaf4 kernel/locking/mutex.c:747) [<817d5c28>] (__mutex_lock.constprop.0) from [<817d67f0>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:ddde9005 r9:8419dc00 r8:00000080 r7:ddde9000 r6:ddde5880 r5:84d36780 r4:825d2ecc [<817d67dc>] (__mutex_lock_slowpath) from [<817d6830>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817d67f4>] (mutex_lock) from [<816f00e4>] (rfkill_global_led_trigger_worker+0x1c/0xa0 net/rfkill/core.c:181) [<816f00c8>] (rfkill_global_led_trigger_worker) from [<802634a8>] (process_one_work+0x20c/0x594 kernel/workqueue.c:2390) r5:84d36780 r4:827230e8 [<8026329c>] (process_one_work) from [<80263c98>] (worker_thread+0x6c/0x4e0 kernel/workqueue.c:2537) r10:ddde5880 r9:00000008 r8:82404d40 r7:ddde589c r6:84d36798 r5:ddde5880 r4:84d36780 [<80263c2c>] (worker_thread) from [<8026abc0>] (kthread+0xec/0x11c kernel/kthread.c:376) r10:00000000 r9:dfebde8c r8:84eae000 r7:84d36780 r6:80263c2c r5:8419dc00 r4:85259880 [<8026aad4>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:133) Exception stack(0xeda5dfb0 to 0xeda5dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026aad4 r4:85259880 INFO: task syz-executor.0:31233 blocked for more than 430 seconds. Not tainted 6.3.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:31233 ppid:2957 flags:0x00000001 Backtrace: [<817d231c>] (__schedule) from [<817d2f90>] (schedule+0x5c/0xac kernel/sched/core.c:6701) r10:83135081 r9:8240c498 r8:850fe0c8 r7:eeb0ddfc r6:00000002 r5:832b4500 r4:832b4500 [<817d2f34>] (schedule) from [<817d3520>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6760) r5:832b4500 r4:850fe0c4 [<817d3508>] (schedule_preempt_disabled) from [<817d5f1c>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817d3508>] (schedule_preempt_disabled) from [<817d5f1c>] (__mutex_lock.constprop.0+0x2f4/0xaf4 kernel/locking/mutex.c:747) [<817d5c28>] (__mutex_lock.constprop.0) from [<817d67f0>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:5ac3c35a r9:7efffd08 r8:83160550 r7:850fe030 r6:850fe018 r5:850fe0c4 r4:850fe000 [<817d67dc>] (__mutex_lock_slowpath) from [<817d6830>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817d67f4>] (mutex_lock) from [<8173f58c>] (nci_close_device+0x30/0x124 net/nfc/nci/core.c:561) [<8173f55c>] (nci_close_device) from [<8173fd74>] (nci_unregister_device+0x24/0x98 net/nfc/nci/core.c:1292) r7:850fe000 r6:834f5e58 r5:000e001b r4:84a0fec0 [<8173fd50>] (nci_unregister_device) from [<80a52044>] (virtual_ncidev_close+0x18/0x30 drivers/nfc/virtual_ncidev.c:163) r9:7efffd08 r8:83160550 r7:83b2cc50 r6:834f5e58 r5:000e001b r4:84a0fec0 [<80a5202c>] (virtual_ncidev_close) from [<804be7a0>] (__fput+0x84/0x264 fs/file_table.c:321) r5:000e001b r4:84fceb40 [<804be71c>] (__fput) from [<804be9fc>] (____fput+0x10/0x14 fs/file_table.c:349) r9:7efffd08 r8:832b4d34 r7:8264e5e0 r6:832b4500 r5:832b4d04 r4:00000000 [<804be9ec>] (____fput) from [<80267250>] (task_work_run+0x8c/0xb4 kernel/task_work.c:179) [<802671c4>] (task_work_run) from [<8020bfd0>] (resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]) [<802671c4>] (task_work_run) from [<8020bfd0>] (do_work_pending+0x424/0x528 arch/arm/kernel/signal.c:630) r9:7efffd08 r8:80200288 r7:fffffe30 r6:80200288 r5:eeb0dfb0 r4:832b4500 [<8020bbac>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x20) Exception stack(0xeeb0dfb0 to 0xeeb0dff8) dfa0: fffffff2 20000840 00000064 00000000 dfc0: 00000000 00000000 0014c348 00000003 7e9143c2 76bdb6d0 7e914534 76bdb20c dfe0: 76bdb020 76bdb010 00017004 0004dfb0 60000010 00000003 r10:00000003 r9:832b4500 r8:80200288 r7:00000003 r6:0014c348 r5:00000000 r4:00000000 INFO: task syz-executor.0:31236 blocked for more than 430 seconds. Not tainted 6.3.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:31236 ppid:2957 flags:0x00000001 Backtrace: [<817d231c>] (__schedule) from [<817d2f90>] (schedule+0x5c/0xac kernel/sched/core.c:6701) r10:82713300 r9:8240c498 r8:8531d060 r7:ee9e9af4 r6:00000002 r5:832b0000 r4:832b0000 [<817d2f34>] (schedule) from [<817d3520>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6760) r5:832b0000 r4:8531d05c [<817d3508>] (schedule_preempt_disabled) from [<817d5f1c>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817d3508>] (schedule_preempt_disabled) from [<817d5f1c>] (__mutex_lock.constprop.0+0x2f4/0xaf4 kernel/locking/mutex.c:747) [<817d5c28>] (__mutex_lock.constprop.0) from [<817d67f0>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82713300 r9:ee9e9c4c r8:84e7cd00 r7:00000001 r6:8531d05c r5:00000000 r4:8531d000 [<817d67dc>] (__mutex_lock_slowpath) from [<817d6830>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817d67f4>] (mutex_lock) from [<81734178>] (device_lock include/linux/device.h:832 [inline]) [<817d67f4>] (mutex_lock) from [<81734178>] (nfc_deactivate_target+0x2c/0xe0 net/nfc/core.c:449) [<8173414c>] (nfc_deactivate_target) from [<81734afc>] (nfc_genl_activate_target+0x68/0x9c net/nfc/netlink.c:899) r7:00000000 r6:00000001 r5:8531d000 r4:00000000 [<81734a94>] (nfc_genl_activate_target) from [<814019c8>] (genl_family_rcv_msg_doit net/netlink/genetlink.c:968 [inline]) [<81734a94>] (nfc_genl_activate_target) from [<814019c8>] (genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline]) [<81734a94>] (nfc_genl_activate_target) from [<814019c8>] (genl_rcv_msg+0x27c/0x3e0 net/netlink/genetlink.c:1065) r7:00000000 r6:851b1e40 r5:81f640bc r4:84897b14 [<8140174c>] (genl_rcv_msg) from [<814008a8>] (netlink_rcv_skb+0xc4/0x128 net/netlink/af_netlink.c:2577) r10:8531f574 r9:00000000 r8:82410a10 r7:0000002c r6:84897b00 r5:8140174c r4:851b1e40 [<814007e4>] (netlink_rcv_skb) from [<81401390>] (genl_rcv+0x2c/0x3c net/netlink/genetlink.c:1076) r7:851b1e40 r6:8531f400 r5:825c674c r4:851b1e40 [<81401364>] (genl_rcv) from [<813ffd3c>] (netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]) [<81401364>] (genl_rcv) from [<813ffd3c>] (netlink_unicast+0x254/0x388 net/netlink/af_netlink.c:1365) r5:82938864 r4:82938800 [<813ffae8>] (netlink_unicast) from [<81400084>] (netlink_sendmsg+0x214/0x4a8 net/netlink/af_netlink.c:1942) r10:00000000 r9:00000000 r8:8531f400 r7:0000002c r6:851b1e40 r5:ee9e9f38 r4:0000002c [<813ffe70>] (netlink_sendmsg) from [<812f45d4>] (sock_sendmsg_nosec net/socket.c:724 [inline]) [<813ffe70>] (netlink_sendmsg) from [<812f45d4>] (sock_sendmsg+0x44/0x78 net/socket.c:747) r10:ee9e9ddc r9:00000000 r8:00000000 r7:00000000 r6:8465f400 r5:ee9e9f38 r4:00000000 [<812f4590>] (sock_sendmsg) from [<812f50e8>] (____sys_sendmsg+0x210/0x2bc net/socket.c:2501) r7:00000000 r6:8465f400 r5:00000000 r4:ee9e9f38 [<812f4ed8>] (____sys_sendmsg) from [<812f6d18>] (___sys_sendmsg+0x74/0xac net/socket.c:2555) r10:00000128 r9:832b0000 r8:00000000 r7:00000000 r6:8465f400 r5:ee9e9f38 r4:00000000 [<812f6ca4>] (___sys_sendmsg) from [<812f716c>] (__sys_sendmsg net/socket.c:2584 [inline]) [<812f6ca4>] (___sys_sendmsg) from [<812f716c>] (__do_sys_sendmsg net/socket.c:2593 [inline]) [<812f6ca4>] (___sys_sendmsg) from [<812f716c>] (sys_sendmsg+0x58/0xa0 net/socket.c:2591) r8:80200288 r7:00000128 r6:00000000 r5:20000780 r4:8465f400 [<812f7114>] (sys_sendmsg) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xee9e9fa8 to 0xee9e9ff0) 9fa0: 00000000 00000000 00000005 20000780 00000000 00000000 9fc0: 00000000 00000000 0014c3d8 00000128 7e9143c2 76bba6d0 7e914534 76bba20c 9fe0: 76bba020 76bba010 00017004 0004dfb0 r6:0014c3d8 r5:00000000 r4:00000000 NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.3.0-rc7-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<817b2528>] (dump_backtrace) from [<817b261c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:000f0013 r5:600f0093 r4:81d901d4 [<817b2604>] (show_stack) from [<817cec84>] (__dump_stack lib/dump_stack.c:88 [inline]) [<817b2604>] (show_stack) from [<817cec84>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<817cec3c>] (dump_stack_lvl) from [<817ceca8>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:00000001 [<817cec90>] (dump_stack) from [<8179ffc4>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<8179fe64>] (nmi_cpu_backtrace) from [<817a0114>] (nmi_trigger_cpumask_backtrace+0x134/0x1dc lib/nmi_backtrace.c:62) r7:8240c498 r6:00000000 r5:8241a844 r4:00000000 [<8179ffe0>] (nmi_trigger_cpumask_backtrace) from [<80210d80>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:854) r9:0003e940 r8:82404d40 r7:00007f52 r6:82693168 r5:8240c604 r4:832c1464 [<80210d68>] (arch_trigger_cpumask_backtrace) from [<803330b4>] (trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]) [<80210d68>] (arch_trigger_cpumask_backtrace) from [<803330b4>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<80210d68>] (arch_trigger_cpumask_backtrace) from [<803330b4>] (watchdog+0x498/0x59c kernel/hung_task.c:379) [<80332c1c>] (watchdog) from [<8026abc0>] (kthread+0xec/0x11c kernel/kthread.c:376) r10:00000000 r9:df819e4c r8:82aa1f00 r7:00000000 r6:80332c1c r5:828fb980 r4:82a39d00 [<8026aad4>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:133) Exception stack(0xdf8cdfb0 to 0xdf8cdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026aad4 r4:82a39d00 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2738 Comm: syslogd Not tainted 6.3.0-rc7-syzkaller #0 Hardware name: ARM-Versatile Express PC is at kmap_local_sched_in kernel/sched/core.c:5091 [inline] PC is at finish_task_switch+0x8c/0x26c kernel/sched/core.c:5194 LR is at __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] LR is at _raw_spin_unlock+0x2c/0x50 kernel/locking/spinlock.c:186 pc : [<80276ab0>] lr : [<817dad30>] psr: 200f0013 sp : ec391c48 ip : ec391c38 fp : ec391c8c r10: 00000001 r9 : 83de7300 r8 : 00000000 r7 : 8295e500 r6 : 00000000 r5 : ddde5c00 r4 : 00000000 r3 : 83de7300 r2 : 00000001 r1 : 81d901d4 r0 : 00000001 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 83f56a40 DAC: 00000000 Backtrace: [<80276a24>] (finish_task_switch) from [<817d2708>] (context_switch kernel/sched/core.c:5310 [inline]) [<80276a24>] (finish_task_switch) from [<817d2708>] (__schedule+0x3ec/0xc18 kernel/sched/core.c:6625) r10:8295e770 r9:00000001 r8:8295e500 r7:8295e500 r6:83de7300 r5:ddde5c00 r4:83130000 [<817d231c>] (__schedule) from [<817d3080>] (preempt_schedule_common+0x34/0xa0 kernel/sched/core.c:6794) r10:00000001 r9:00000304 r8:ec391d48 r7:817d3118 r6:00000001 r5:817d3118 r4:83de7300 [<817d304c>] (preempt_schedule_common) from [<817d3118>] (preempt_schedule+0x2c/0x30 kernel/sched/core.c:6818) r7:00000001 r6:00000010 r5:83ce8e80 r4:00000000 [<817d30ec>] (preempt_schedule) from [<817dae44>] (__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]) [<817d30ec>] (preempt_schedule) from [<817dae44>] (_raw_spin_unlock_irqrestore+0x50/0x54 kernel/locking/spinlock.c:194) [<817dadf4>] (_raw_spin_unlock_irqrestore) from [<8029b018>] (spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]) [<817dadf4>] (_raw_spin_unlock_irqrestore) from [<8029b018>] (__wake_up_common_lock+0x94/0xcc kernel/sched/wait.c:140) [<8029af84>] (__wake_up_common_lock) from [<8029b150>] (__wake_up_sync_key+0x28/0x30 kernel/sched/wait.c:208) r10:00000000 r9:83ce8ca8 r8:ec391dd8 r7:00000000 r6:83ce8e34 r5:83ce8c00 r4:84ad3b40 [<8029b128>] (__wake_up_sync_key) from [<81588558>] (__unix_dgram_recvmsg+0x11c/0x3b4 net/unix/af_unix.c:2479) [<8158843c>] (__unix_dgram_recvmsg) from [<81588834>] (unix_dgram_recvmsg+0x44/0x4c net/unix/af_unix.c:2549) r10:00000000 r9:83de7300 r8:01f9a1b8 r7:83558780 r6:00000000 r5:ec391e68 r4:815887f0 [<815887f0>] (unix_dgram_recvmsg) from [<812f418c>] (sock_recvmsg_nosec net/socket.c:1017 [inline]) [<815887f0>] (unix_dgram_recvmsg) from [<812f418c>] (sock_recvmsg+0x50/0x78 net/socket.c:1038) r4:815887f0 [<812f413c>] (sock_recvmsg) from [<812f4254>] (sock_read_iter+0xa0/0xfc net/socket.c:1116) r7:83558780 r6:838a5540 r5:ec391f08 r4:ec391ef0 [<812f41b4>] (sock_read_iter) from [<804bc8e8>] (call_read_iter include/linux/fs.h:1845 [inline]) [<812f41b4>] (sock_read_iter) from [<804bc8e8>] (new_sync_read fs/read_write.c:389 [inline]) [<812f41b4>] (sock_read_iter) from [<804bc8e8>] (vfs_read+0x268/0x294 fs/read_write.c:470) r7:00000000 r6:000000ff r5:838a5540 r4:00000000 [<804bc680>] (vfs_read) from [<804bd250>] (ksys_read+0xb4/0xec fs/read_write.c:613) r10:00000003 r9:83de7300 r8:80200288 r7:000000ff r6:01f9a1b8 r5:838a5540 r4:838a5540 [<804bd19c>] (ksys_read) from [<804bd298>] (__do_sys_read fs/read_write.c:623 [inline]) [<804bd19c>] (ksys_read) from [<804bd298>] (sys_read+0x10/0x14 fs/read_write.c:621) r7:00000003 r6:76ff5080 r5:01f9a190 r4:fffffc00 [<804bd288>] (sys_read) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xec391fa8 to 0xec391ff0) 1fa0: fffffc00 01f9a190 00000000 01f9a1b8 000000ff 00000000 1fc0: fffffc00 01f9a190 76ff5080 00000003 00000000 000d6c90 000d6c90 00000000 1fe0: 000d609c 7efc2c78 000579b8 76f196f8