Here's another, from different BBB with the same setup: [Apr29 23:08] hrtimer: interrupt took 387492 ns [Apr29 23:15] INFO: task kworker/0:1:15 blocked for more than 120 seconds. [ +0.006971] Tainted: G O 3.14.39-ti-r61 #1 [ +0.017714] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ +0.015542] kworker/0:1 D c08d01d8 0 15 2 0x00000000 [ +0.000227] Workqueue: ipv6_addrconf addrconf_verify_work [ +0.000066] Backtrace: [ +0.000094] [<c08cfe98>] (__schedule) from [<c08d05f8>] (schedule+0x40/0x90) [ +0.000059] r10:c0d2f3cc r9:dd9e6030 r8:dd984780 r7:00000002 r6:ffffffff r5:c0d2f3c8 [ +0.000184] r4:c0d2f3c4 [ +0.000054] [<c08d05b8>] (schedule) from [<c08d0ac0>] (schedule_preempt_disabled+0x20/0x2c) [ +0.000080] [<c08d0aa0>] (schedule_preempt_disabled) from [<c08d2650>] (__mutex_lock_slowpath+0x174/0x26c) [ +0.000093] [<c08d24dc>] (__mutex_lock_slowpath) from [<c08d27a0>] (mutex_lock+0x58/0x5c) [ +0.000075] r10:feff7205 r9:dd9e6028 r8:00000000 r7:feff7200 r6:df9b7b40 r5:dd9d0e80 [ +0.000149] r4:c0d2f3c4 [ +0.000058] [<c08d2748>] (mutex_lock) from [<c07c7440>] (rtnl_lock+0x20/0x24) [ +0.000049] r4:c0d33570 r3:c085fae4 [ +0.000112] [<c07c7420>] (rtnl_lock) from [<c085fafc>] (addrconf_verify_work+0x18/0x24) [ +0.000115] [<c085fae4>] (addrconf_verify_work) from [<c00635c8>] (process_one_work+0x130/0x454) [ +0.000088] [<c0063498>] (process_one_work) from [<c0064420>] (worker_thread+0x144/0x3d4) [ +0.000078] r10:c0d3a6a2 r9:dd9e6000 r8:dd9e6028 r7:df9b7b54 r6:dd9d0e98 r5:df9b7b40 [ +0.000127] r4:dd9d0e80 [ +0.000107] [<c00642dc>] (worker_thread) from [<c006a808>] (kthread+0xdc/0xf4) [ +0.000067] r10:00000000 r9:00000000 r8:00000000 r7:c00642dc r6:dd9d0e80 r5:dd9cd280 [ +0.000126] r4:00000000 [ +0.000113] [<c006a72c>] (kthread) from [<c000fa78>] (ret_from_fork+0x14/0x20) [ +0.000063] r7:00000000 r6:00000000 r5:c006a72c r4:dd9cd280 [ +0.000191] INFO: task octoprint:1211 blocked for more than 120 seconds. [ +0.025893] Tainted: G O 3.14.39-ti-r61 #1 [ +0.034184] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ +0.041472] octoprint D c08d01d8 0 1211 1 0x00000000 [ +0.000161] Backtrace: [ +0.000092] [<c08cfe98>] (__schedule) from [<c08d05f8>] (schedule+0x40/0x90) [ +0.000063] r10:c0d2f3cc r9:ddb86028 r8:dd94ed80 r7:00000002 r6:ffffffff r5:c0d2f3c8 [ +0.000131] r4:c0d2f3c4 [ +0.000100] [<c08d05b8>] (schedule) from [<c08d0ac0>] (schedule_preempt_disabled+0x20/0x2c) [ +0.000094] [<c08d0aa0>] (schedule_preempt_disabled) from [<c08d2650>] (__mutex_lock_slowpath+0x174/0x26c) [ +0.000097] [<c08d24dc>] (__mutex_lock_slowpath) from [<c08d27a0>] (mutex_lock+0x58/0x5c) [ +0.000076] r10:00000000 r9:0000006b r8:00000000 r7:00000014 r6:dcaac000 r5:dde0c3c0 [ +0.000131] r4:c0d2f3c4 [ +0.000110] [<c08d2748>] (mutex_lock) from [<c07c9c54>] (rtnetlink_rcv+0x24/0x3c) [ +0.000056] r4:dde0c3c0 r3:c07c9c30 [ +0.000094] [<c07c9c30>] (rtnetlink_rcv) from [<c07e5c18>] (netlink_unicast+0x10c/0x1c8) [ +0.000056] r4:dd9c1400 r3:c07c9c30 [ +0.000061] [<c07e5b0c>] (netlink_unicast) from [<c07e60b4>] (netlink_sendmsg+0x318/0x5ec) [ +0.000048] r8:00000008 r7:ddb87e70 r6:00000000 r5:dcaac000 r4:ddb87ee0 [ +0.000162] [<c07e5d9c>] (netlink_sendmsg) from [<c079e108>] (sock_sendmsg+0xc8/0xf0) [ +0.000081] r10:00000000 r9:ddb86000 r8:b24fe454 r7:ddb87ee0 r6:00000014 r5:da8d0ac0 [ +0.000148] r4:dd94ed80 [ +0.000049] [<c079e040>] (sock_sendmsg) from [<c07a0634>] (SyS_sendto+0xd4/0x10c) [ +0.000051] r7:da8d0ac0 r6:00000000 r5:00000014 r4:c0cac50c [ +0.000142] [<c07a0560>] (SyS_sendto) from [<c000f9e0>] (ret_fast_syscall+0x0/0x30) [ +0.000061] r8:c000fc04 r7:00000122 r6:b24fe4dc r5:0000000c r4:b24fe448 [ +0.000166] INFO: task dnsmasq:1459 blocked for more than 120 seconds. [ +0.049063] Tainted: G O 3.14.39-ti-r61 #1 [ +0.029581] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ +0.045189] dnsmasq D c08d01d8 0 1459 1 0x00000000 [ +0.000151] Backtrace: [ +0.000092] [<c08cfe98>] (__schedule) from [<c08d05f8>] (schedule+0x40/0x90) [ +0.000062] r10:c0d2f3cc r9:dc8e0000 r8:ddd81600 r7:00000002 r6:ffffffff r5:c0d2f3c8 [ +0.000134] r4:c0d2f3c4 [ +0.000101] [<c08d05b8>] (schedule) from [<c08d0ac0>] (schedule_preempt_disabled+0x20/0x2c) [ +0.000093] [<c08d0aa0>] (schedule_preempt_disabled) from [<c08d2650>] (__mutex_lock_slowpath+0x174/0x26c) [ +0.000097] [<c08d24dc>] (__mutex_lock_slowpath) from [<c08d27a0>] (mutex_lock+0x58/0x5c) [ +0.000075] r10:00000015 r9:c0d2e380 r8:f20010ac r7:00000000 r6:be852920 r5:c0cac50c [ +0.000130] r4:c0d2f3c4 [ +0.000109] [<c08d2748>] (mutex_lock) from [<c07c7440>] (rtnl_lock+0x20/0x24) [ +0.000059] r4:00000001 r3:00000002 [ +0.000088] [<c07c7420>] (rtnl_lock) from [<c0825d40>] (devinet_ioctl+0x138/0x76c) [ +0.000086] [<c0825c08>] (devinet_ioctl) from [<c0827a04>] (inet_ioctl+0x1a4/0x1d0) [ +0.000075] r10:00000000 r9:00000004 r8:00008915 r7:c0d2e380 r6:be852920 r5:ffffff25 [ +0.000149] r4:00008915 [ +0.000063] [<c0827860>] (inet_ioctl) from [<c079dd20>] (sock_ioctl+0x1e4/0x2b4) [ +0.000071] [<c079db3c>] (sock_ioctl) from [<c0184eb8>] (do_vfs_ioctl+0x410/0x5d4) [ +0.000067] r7:be852920 r6:ddc90140 r5:be852920 r4:dd7230a0 [ +0.000097] [<c0184aa8>] (do_vfs_ioctl) from [<c01850f8>] (SyS_ioctl+0x7c/0x8c) [ +0.000054] r9:00000004 r8:00008915 r7:be852920 r6:ddc90140 r5:ddc90140 r4:00000000 [ +0.000178] [<c018507c>] (SyS_ioctl) from [<c000f9e0>] (ret_fast_syscall+0x0/0x30) [ +0.000072] r9:dc8e0000 r8:c000fc04 r7:00000036 r6:b70030e8 r5:00000000 r4:be852920 [ +0.000173] INFO: task ip:1863 blocked for more than 120 seconds. [ +0.006495] Tainted: G O 3.14.39-ti-r61 #1 [ +0.049361] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ +0.018203] ip D c08d01d8 0 1863 1862 0x00000000 [ +0.000076] Backtrace: [ +0.000043] [<c08cfe98>] (__schedule) from [<c08d05f8>] (schedule+0x40/0x90) [ +0.000041] r10:ddf38b3c r9:dde16000 r8:dca02e40 r7:00000002 r6:ffffffff r5:ddf38b38 [ +0.000023] r4:ddf38b34 [ +0.000017] [<c08d05b8>] (schedule) from [<c08d0ac0>] (schedule_preempt_disabled+0x20/0x2c) [ +0.000026] [<c08d0aa0>] (schedule_preempt_disabled) from [<c08d2650>] (__mutex_lock_slowpath+0x174/0x26c) [ +0.000016] [<c08d24dc>] (__mutex_lock_slowpath) from [<c08d27a0>] (mutex_lock+0x58/0x5c) [ +0.000007] r10:00000000 r9:dde17b28 r8:00000000 r7:ddf383c0 r6:ddf38b34 r5:dde17a58 [ +0.000032] r4:ddf38b34 [ +0.000110] [<c08d2748>] (mutex_lock) from [<bf2061f8>] (ieee80211_scan_cancel+0x2c/0x208 [mac80211]) [ +0.000021] r4:ddf383c0 r3:00000001 [ +0.000060] [<bf2061cc>] (ieee80211_scan_cancel [mac80211]) from [<bf210850>] (ieee80211_do_stop+0x59c/0x870 [mac80211]) [ +0.000036] r8:00000000 r7:ddf383c0 r6:dcd45500 r5:dde17a58 r4:dcd45000 [ +0.000066] [<bf2102b4>] (ieee80211_do_stop [mac80211]) from [<bf210b44>] (ieee80211_stop+0x20/0x28 [mac80211]) [ +0.000033] r10:00000000 r9:dde17b28 r8:00000000 r7:00001003 r6:00001002 r5:dde17a58 [ +0.000022] r4:dcd45000 [ +0.000042] [<bf210b24>] (ieee80211_stop [mac80211]) from [<c07b3908>] (__dev_close_many+0x98/0xe0) [ +0.000043] [<c07b3870>] (__dev_close_many) from [<c07b3a8c>] (__dev_close+0x4c/0x8c) [ +0.000007] r5:dde17a58 r4:dcd45000 [ +0.000023] [<c07b3a40>] (__dev_close) from [<c07bbc10>] (__dev_change_flags+0xa4/0x164) [ +0.000008] r5:00000001 r4:dcd45000 [ +0.000027] [<c07bbb6c>] (__dev_change_flags) from [<c07bbcf8>] (dev_change_flags+0x28/0x58) [ +0.000007] r8:00000000 r7:dde2b490 r6:00001003 r5:dcd45128 r4:dcd45000 r3:00001002 [ +0.000044] [<c07bbcd0>] (dev_change_flags) from [<c07ca400>] (do_setlink+0x3e4/0x900) [ +0.000008] r8:dcd505c0 r7:dde2b490 r6:dde2b480 r5:dde17b6c r4:dcd45000 r3:00001002 [ +0.000037] [<c07ca01c>] (do_setlink) from [<c07caf5c>] (rtnl_newlink+0x514/0x664) [ +0.000007] r10:00000000 r9:dde17b28 r8:00000000 r7:00000000 r6:dde2b480 r5:dcd45000 [ +0.000029] r4:00000000 [ +0.000016] [<c07caa48>] (rtnl_newlink) from [<c07c9df4>] (rtnetlink_rcv_msg+0x188/0x228) [ +0.000007] r10:00000000 r9:00000000 r8:c0d2e380 r7:00000000 r6:dcd505c0 r5:dde2b480 [ +0.000030] r4:00000000 [ +0.000024] [<c07c9c6c>] (rtnetlink_rcv_msg) from [<c07e653c>] (netlink_rcv_skb+0xb0/0xcc) [ +0.000008] r9:00000000 r8:00000000 r7:00000020 r6:dcd505c0 r5:c07c9c6c r4:dde2b480 [ +0.000037] [<c07e648c>] (netlink_rcv_skb) from [<c07c9c64>] (rtnetlink_rcv+0x34/0x3c) [ +0.000008] r6:dcaacc00 r5:dcd505c0 r4:dcd505c0 r3:c07c9c30 [ +0.000033] [<c07c9c30>] (rtnetlink_rcv) from [<c07e5c18>] (netlink_unicast+0x10c/0x1c8) [ +0.000008] r4:dd9c1400 r3:c07c9c30 [ +0.000018] [<c07e5b0c>] (netlink_unicast) from [<c07e60b4>] (netlink_sendmsg+0x318/0x5ec) [ +0.000015] r8:00000008 r7:dde17dc8 r6:00000000 r5:dcaacc00 r4:dde17f5c [ +0.000038] [<c07e5d9c>] (netlink_sendmsg) from [<c079e108>] (sock_sendmsg+0xc8/0xf0) [ +0.000055] r10:00000020 r9:00000000 r8:ce08cc80 r7:dde17f5c r6:00000020 r5:ce08cc80 [ +0.000022] r4:dca02e40 [ +0.000018] [<c079e040>] (sock_sendmsg) from [<c079f934>] (___sys_sendmsg.part.13+0x2e8/0x2fc) [ +0.000015] r7:dde17e3c r6:dde17e3c r5:dde17f5c r4:c0cac50c [ +0.000026] [<c079f64c>] (___sys_sendmsg.part.13) from [<c07a0a88>] (__sys_sendmsg+0x5c/0x8c) [ +0.000008] r10:00000000 r9:dde16000 r8:c000fc04 r7:00000128 r6:00000000 r5:beb616f4 [ +0.000029] r4:ce08cc80 [ +0.000015] [<c07a0a2c>] (__sys_sendmsg) from [<c07a0ad0>] (SyS_sendmsg+0x18/0x1c) [ +0.000007] r6:beb616e0 r5:00000010 r4:0000000c [ +0.000035] [<c07a0ab8>] (SyS_sendmsg) from [<c000f9e0>] (ret_fast_syscall+0x0/0x30)
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