[ 32.628344][ T266] [ 32.628435][ T266] ===================================== [ 32.628564][ T266] WARNING: bad unlock balance detected! [ 32.628688][ T266] 6.12.0-rc5-virtme #1 Not tainted [ 32.628815][ T266] ------------------------------------- [ 32.628937][ T266] ip/266 is trying to release lock (rtnl_mutex) at: [ 32.629098][ T266] [] __rtnl_unlock+0x69/0xf0 [ 32.629265][ T266] but there are no more locks to release! [ 32.629389][ T266] [ 32.629389][ T266] other info that might help us debug this: [ 32.629572][ T266] no locks held by ip/266. [ 32.629701][ T266] [ 32.629701][ T266] stack backtrace: [ 32.629855][ T266] CPU: 2 UID: 0 PID: 266 Comm: ip Not tainted 6.12.0-rc5-virtme #1 [ 32.630045][ T266] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 32.630326][ T266] Call Trace: [ 32.630427][ T266] [ 32.630492][ T266] dump_stack_lvl+0x82/0xd0 [ 32.630641][ T266] ? __rtnl_unlock+0x69/0xf0 [ 32.630769][ T266] print_unlock_imbalance_bug+0x1aa/0x1f0 [ 32.630900][ T266] __lock_release+0x2f7/0x460 [ 32.631030][ T266] ? __pfx___lock_release+0x10/0x10 [ 32.631159][ T266] ? __rtnl_unlock+0x69/0xf0 [ 32.631288][ T266] lock_release+0xd7/0x140 [ 32.631419][ T266] __mutex_unlock_slowpath+0x8f/0x3b0 [ 32.631547][ T266] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 32.631671][ T266] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 32.631828][ T266] ? rtnl_link_ops_get+0x187/0x220 [ 32.631953][ T266] __rtnl_unlock+0x69/0xf0 [ 32.632080][ T266] rtnl_newlink+0x7fd/0xa30 [ 32.632206][ T266] ? __pfx_rtnl_newlink+0x10/0x10 [ 32.632331][ T266] ? find_held_lock+0x2c/0x110 [ 32.632466][ T266] ? __lock_release+0x103/0x460 [ 32.632593][ T266] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 32.632718][ T266] ? __pfx___lock_release+0x10/0x10 [ 32.632850][ T266] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 32.632975][ T266] ? __pfx_rtnl_newlink+0x10/0x10 [ 32.633102][ T266] rtnetlink_rcv_msg+0x712/0xc10 [ 32.633240][ T266] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 32.633369][ T266] ? hlock_class+0x4e/0x130 [ 32.633498][ T266] ? mark_lock+0x38/0x3e0 [ 32.633594][ T266] ? __lock_acquire+0xb3f/0x1580 [ 32.633720][ T266] netlink_rcv_skb+0x130/0x360 [ 32.633847][ T266] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 32.633974][ T266] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 32.634103][ T266] ? netlink_deliver_tap+0x13e/0x340 [ 32.634231][ T266] ? netlink_deliver_tap+0xc3/0x340 [ 32.634359][ T266] netlink_unicast+0x44b/0x710 [ 32.634488][ T266] ? __pfx_netlink_unicast+0x10/0x10 [ 32.634616][ T266] ? find_held_lock+0x2c/0x110 [ 32.634747][ T266] ? __lock_release+0x103/0x460 [ 32.634874][ T266] netlink_sendmsg+0x723/0xbe0 [ 32.635017][ T266] ? __pfx_netlink_sendmsg+0x10/0x10 [ 32.635146][ T266] ? _copy_from_user+0x55/0xa0 [ 32.635274][ T266] ____sys_sendmsg+0x7ac/0xa10 [ 32.635408][ T266] ? __pfx_____sys_sendmsg+0x10/0x10 [ 32.635536][ T266] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 32.635694][ T266] ? __pfx_validate_chain+0x10/0x10 [ 32.635819][ T266] ? hlock_class+0x4e/0x130 [ 32.635947][ T266] ___sys_sendmsg+0xee/0x170 [ 32.636081][ T266] ? __pfx____sys_sendmsg+0x10/0x10 [ 32.636207][ T266] ? __lock_acquire+0xb3f/0x1580 [ 32.636339][ T266] ? find_held_lock+0x2c/0x110 [ 32.636470][ T266] ? __lock_release+0x103/0x460 [ 32.636594][ T266] ? __might_fault+0x11b/0x170 [ 32.636737][ T266] ? __pfx___lock_release+0x10/0x10 [ 32.636879][ T266] ? trace_lock_acquire+0x14d/0x1f0 [ 32.637007][ T266] ? __might_fault+0xc3/0x170 [ 32.637133][ T266] ? lock_acquire+0x32/0xc0 [ 32.637269][ T266] ? fdget+0x52/0x1e0 [ 32.637371][ T266] __sys_sendmsg+0xcd/0x170 [ 32.637497][ T266] ? __pfx___sys_sendmsg+0x10/0x10 [ 32.637627][ T266] ? rseq_update_cpu_node_id+0xe6/0x140 [ 32.637758][ T266] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 32.637928][ T266] do_syscall_64+0xc1/0x1d0 [ 32.638060][ T266] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 32.638219][ T266] RIP: 0033:0x7ff46d3c07b7 [ 32.638350][ T266] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 [ 32.638796][ T266] RSP: 002b:00007fff7ef3f3d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 32.638988][ T266] RAX: ffffffffffffffda RBX: 00007fff7ef3fb00 RCX: 00007ff46d3c07b7 [ 32.639176][ T266] RDX: 0000000000000000 RSI: 00007fff7ef3f440 RDI: 0000000000000005 [ 32.639363][ T266] RBP: 0000000000000005 R08: 000000000000006c R09: 00007fff7ef3e1b0 [ 32.639561][ T266] R10: 00007ff46d279708 R11: 0000000000000246 R12: 00007fff7ef3fb28 [ 32.639752][ T266] R13: 00000000672a19e4 R14: 0000000000496600 R15: 00007fff7ef3f530 [ 32.639960][ T266] [ 247.102363][ T44] INFO: task ip:266 blocked for more than 122 seconds. [ 247.102631][ T44] Not tainted 6.12.0-rc5-virtme #1 [ 247.102758][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 247.102951][ T44] task:ip state:D stack:25640 pid:266 tgid:266 ppid:246 flags:0x00004002 [ 247.103211][ T44] Call Trace: [ 247.103303][ T44] [ 247.103369][ T44] __schedule+0xa19/0x1dc0 [ 247.103501][ T44] ? __pfx___schedule+0x10/0x10 [ 247.103622][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 247.103740][ T44] ? trace_lock_release+0x10e/0x180 [ 247.103853][ T44] schedule+0xdf/0x210 [ 247.103941][ T44] schedule_preempt_disabled+0x15/0x30 [ 247.104056][ T44] __mutex_lock+0x634/0xac0 [ 247.104181][ T44] ? rtnl_newlink+0x64b/0xa30 [ 247.104297][ T44] ? __pfx___mutex_lock+0x10/0x10 [ 247.104417][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 247.104537][ T44] ? rtnl_newlink+0x64b/0xa30 [ 247.104649][ T44] rtnl_newlink+0x64b/0xa30 [ 247.104764][ T44] ? __pfx_rtnl_newlink+0x10/0x10 [ 247.104883][ T44] ? find_held_lock+0x2c/0x110 [ 247.104997][ T44] ? __pfx___lock_release+0x10/0x10 [ 247.105115][ T44] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 247.105239][ T44] ? __pfx_rtnl_newlink+0x10/0x10 [ 247.105353][ T44] rtnetlink_rcv_msg+0x712/0xc10 [ 247.105467][ T44] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 247.105577][ T44] ? hlock_class+0x4e/0x130 [ 247.105689][ T44] ? mark_lock+0x38/0x3e0 [ 247.105775][ T44] ? __lock_acquire+0xb3f/0x1580 [ 247.105888][ T44] netlink_rcv_skb+0x130/0x360 [ 247.106003][ T44] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 247.106120][ T44] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 247.106238][ T44] ? netlink_deliver_tap+0x13e/0x340 [ 247.106353][ T44] ? netlink_deliver_tap+0xc3/0x340 [ 247.106464][ T44] netlink_unicast+0x44b/0x710 [ 247.106577][ T44] ? __pfx_netlink_unicast+0x10/0x10 [ 247.106687][ T44] ? find_held_lock+0x2c/0x110 [ 247.106828][ T44] ? __lock_release+0x103/0x460 [ 247.106943][ T44] netlink_sendmsg+0x723/0xbe0 [ 247.107065][ T44] ? __pfx_netlink_sendmsg+0x10/0x10 [ 247.107186][ T44] ? _copy_from_user+0x55/0xa0 [ 247.107304][ T44] ____sys_sendmsg+0x7ac/0xa10 [ 247.107422][ T44] ? __pfx_____sys_sendmsg+0x10/0x10 [ 247.107533][ T44] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 247.107675][ T44] ? __pfx_validate_chain+0x10/0x10 [ 247.107784][ T44] ? hlock_class+0x4e/0x130 [ 247.107898][ T44] ___sys_sendmsg+0xee/0x170 [ 247.108020][ T44] ? __pfx____sys_sendmsg+0x10/0x10 [ 247.108131][ T44] ? __lock_acquire+0xb3f/0x1580 [ 247.108252][ T44] ? find_held_lock+0x2c/0x110 [ 247.108366][ T44] ? __lock_release+0x103/0x460 [ 247.108475][ T44] ? __might_fault+0x11b/0x170 [ 247.108588][ T44] ? __pfx___lock_release+0x10/0x10 [ 247.108698][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 247.108811][ T44] ? __might_fault+0xc3/0x170 [ 247.108924][ T44] ? lock_acquire+0x32/0xc0 [ 247.109036][ T44] ? fdget+0x52/0x1e0 [ 247.109125][ T44] __sys_sendmsg+0xcd/0x170 [ 247.109243][ T44] ? __pfx___sys_sendmsg+0x10/0x10 [ 247.109371][ T44] ? rseq_update_cpu_node_id+0xe6/0x140 [ 247.109490][ T44] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 247.109631][ T44] do_syscall_64+0xc1/0x1d0 [ 247.109743][ T44] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 247.109892][ T44] RIP: 0033:0x7ff46d3c07b7 [ 247.110014][ T44] RSP: 002b:00007fff7ef3f3d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 247.110197][ T44] RAX: ffffffffffffffda RBX: 00007fff7ef3fb00 RCX: 00007ff46d3c07b7 [ 247.110366][ T44] RDX: 0000000000000000 RSI: 00007fff7ef3f440 RDI: 0000000000000005 [ 247.110533][ T44] RBP: 0000000000000005 R08: 000000000000006c R09: 00007fff7ef3e1b0 [ 247.110697][ T44] R10: 00007ff46d279708 R11: 0000000000000246 R12: 00007fff7ef3fb28 [ 247.110869][ T44] R13: 00000000672a19e4 R14: 0000000000496600 R15: 00007fff7ef3f530 [ 247.111040][ T44] [ 247.111132][ T44] INFO: lockdep is turned off. [ 369.982338][ T44] INFO: task kworker/u16:0:11 blocked for more than 122 seconds. [ 369.982686][ T44] Not tainted 6.12.0-rc5-virtme #1 [ 369.982806][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 369.983024][ T44] task:kworker/u16:0 state:D stack:28328 pid:11 tgid:11 ppid:2 flags:0x00004000 [ 369.983300][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 369.983474][ T44] Call Trace: [ 369.983568][ T44] [ 369.983635][ T44] __schedule+0xa19/0x1dc0 [ 369.983766][ T44] ? __pfx___schedule+0x10/0x10 [ 369.983891][ T44] ? __lock_release+0x103/0x460 [ 369.984025][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 369.984153][ T44] ? trace_lock_release+0x10e/0x180 [ 369.984288][ T44] schedule+0xdf/0x210 [ 369.984384][ T44] schedule_preempt_disabled+0x15/0x30 [ 369.984508][ T44] __mutex_lock+0x634/0xac0 [ 369.984637][ T44] ? do_raw_spin_unlock+0x58/0x220 [ 369.984759][ T44] ? addrconf_verify_work+0x12/0x30 [ 369.984884][ T44] ? __pfx___mutex_lock+0x10/0x10 [ 369.985016][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 369.985139][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 369.985268][ T44] ? addrconf_verify_work+0x12/0x30 [ 369.985392][ T44] addrconf_verify_work+0x12/0x30 [ 369.985518][ T44] process_one_work+0xe55/0x16d0 [ 369.985649][ T44] ? __pfx___lock_release+0x10/0x10 [ 369.985772][ T44] ? __pfx_process_one_work+0x10/0x10 [ 369.985895][ T44] ? assign_work+0x16c/0x240 [ 369.986028][ T44] worker_thread+0x58c/0xce0 [ 369.986152][ T44] ? __pfx_worker_thread+0x10/0x10 [ 369.986279][ T44] kthread+0x28a/0x350 [ 369.986375][ T44] ? __pfx_kthread+0x10/0x10 [ 369.986499][ T44] ret_from_fork+0x31/0x70 [ 369.986626][ T44] ? __pfx_kthread+0x10/0x10 [ 369.986748][ T44] ret_from_fork_asm+0x1a/0x30 [ 369.986874][ T44] [ 369.986985][ T44] INFO: task ip:266 blocked for more than 245 seconds. [ 369.987137][ T44] Not tainted 6.12.0-rc5-virtme #1 [ 369.987258][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 369.987458][ T44] task:ip state:D stack:25640 pid:266 tgid:266 ppid:246 flags:0x00004002 [ 369.987703][ T44] Call Trace: [ 369.987797][ T44] [ 369.987859][ T44] __schedule+0xa19/0x1dc0 [ 369.987985][ T44] ? __pfx___schedule+0x10/0x10 [ 369.988113][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 369.988241][ T44] ? trace_lock_release+0x10e/0x180 [ 369.988369][ T44] schedule+0xdf/0x210 [ 369.988461][ T44] schedule_preempt_disabled+0x15/0x30 [ 369.988590][ T44] __mutex_lock+0x634/0xac0 [ 369.988713][ T44] ? rtnl_newlink+0x64b/0xa30 [ 369.988839][ T44] ? __pfx___mutex_lock+0x10/0x10 [ 369.988965][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 369.989091][ T44] ? rtnl_newlink+0x64b/0xa30 [ 369.989218][ T44] rtnl_newlink+0x64b/0xa30 [ 369.989343][ T44] ? __pfx_rtnl_newlink+0x10/0x10 [ 369.989466][ T44] ? find_held_lock+0x2c/0x110 [ 369.989590][ T44] ? __pfx___lock_release+0x10/0x10 [ 369.989716][ T44] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 369.989841][ T44] ? __pfx_rtnl_newlink+0x10/0x10 [ 369.989966][ T44] rtnetlink_rcv_msg+0x712/0xc10 [ 369.990094][ T44] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 369.990222][ T44] ? hlock_class+0x4e/0x130 [ 369.990347][ T44] ? mark_lock+0x38/0x3e0 [ 369.990441][ T44] ? __lock_acquire+0xb3f/0x1580 [ 369.990567][ T44] netlink_rcv_skb+0x130/0x360 [ 369.990693][ T44] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 369.990816][ T44] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 369.990940][ T44] ? netlink_deliver_tap+0x13e/0x340 [ 369.991069][ T44] ? netlink_deliver_tap+0xc3/0x340 [ 369.991199][ T44] netlink_unicast+0x44b/0x710 [ 369.991324][ T44] ? __pfx_netlink_unicast+0x10/0x10 [ 369.991447][ T44] ? find_held_lock+0x2c/0x110 [ 369.991574][ T44] ? __lock_release+0x103/0x460 [ 369.991697][ T44] netlink_sendmsg+0x723/0xbe0 [ 369.991825][ T44] ? __pfx_netlink_sendmsg+0x10/0x10 [ 369.991949][ T44] ? _copy_from_user+0x55/0xa0 [ 369.992079][ T44] ____sys_sendmsg+0x7ac/0xa10 [ 369.992211][ T44] ? __pfx_____sys_sendmsg+0x10/0x10 [ 369.992333][ T44] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 369.992488][ T44] ? __pfx_validate_chain+0x10/0x10 [ 369.992613][ T44] ? hlock_class+0x4e/0x130 [ 369.992737][ T44] ___sys_sendmsg+0xee/0x170 [ 369.992861][ T44] ? __pfx____sys_sendmsg+0x10/0x10 [ 369.992986][ T44] ? __lock_acquire+0xb3f/0x1580 [ 369.993110][ T44] ? find_held_lock+0x2c/0x110 [ 369.993243][ T44] ? __lock_release+0x103/0x460 [ 369.993368][ T44] ? __might_fault+0x11b/0x170 [ 369.993493][ T44] ? __pfx___lock_release+0x10/0x10 [ 369.993617][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 369.993742][ T44] ? __might_fault+0xc3/0x170 [ 369.993865][ T44] ? lock_acquire+0x32/0xc0 [ 369.993990][ T44] ? fdget+0x52/0x1e0 [ 369.994088][ T44] __sys_sendmsg+0xcd/0x170 [ 369.994219][ T44] ? __pfx___sys_sendmsg+0x10/0x10 [ 369.994342][ T44] ? rseq_update_cpu_node_id+0xe6/0x140 [ 369.994470][ T44] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 369.994627][ T44] do_syscall_64+0xc1/0x1d0 [ 369.994764][ T44] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 369.994933][ T44] RIP: 0033:0x7ff46d3c07b7 [ 369.995061][ T44] RSP: 002b:00007fff7ef3f3d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 369.995256][ T44] RAX: ffffffffffffffda RBX: 00007fff7ef3fb00 RCX: 00007ff46d3c07b7 [ 369.995443][ T44] RDX: 0000000000000000 RSI: 00007fff7ef3f440 RDI: 0000000000000005 [ 369.995626][ T44] RBP: 0000000000000005 R08: 000000000000006c R09: 00007fff7ef3e1b0 [ 369.995807][ T44] R10: 00007ff46d279708 R11: 0000000000000246 R12: 00007fff7ef3fb28 [ 369.995992][ T44] R13: 00000000672a19e4 R14: 0000000000496600 R15: 00007fff7ef3f530 [ 369.996186][ T44] [ 369.996281][ T44] INFO: lockdep is turned off. [ 492.862422][ T44] INFO: task kworker/u16:0:11 blocked for more than 245 seconds. [ 492.862886][ T44] Not tainted 6.12.0-rc5-virtme #1 [ 492.863052][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 492.863376][ T44] task:kworker/u16:0 state:D stack:28328 pid:11 tgid:11 ppid:2 flags:0x00004000 [ 492.863654][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 492.863826][ T44] Call Trace: [ 492.863933][ T44] [ 492.864000][ T44] __schedule+0xa19/0x1dc0 [ 492.864130][ T44] ? __pfx___schedule+0x10/0x10 [ 492.864282][ T44] ? __lock_release+0x103/0x460 [ 492.864410][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 492.864543][ T44] ? trace_lock_release+0x10e/0x180 [ 492.864662][ T44] schedule+0xdf/0x210 [ 492.864759][ T44] schedule_preempt_disabled+0x15/0x30 [ 492.864876][ T44] __mutex_lock+0x634/0xac0 [ 492.864997][ T44] ? do_raw_spin_unlock+0x58/0x220 [ 492.865115][ T44] ? addrconf_verify_work+0x12/0x30 [ 492.865240][ T44] ? __pfx___mutex_lock+0x10/0x10 [ 492.865364][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 492.865484][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 492.865603][ T44] ? addrconf_verify_work+0x12/0x30 [ 492.865721][ T44] addrconf_verify_work+0x12/0x30 [ 492.865838][ T44] process_one_work+0xe55/0x16d0 [ 492.865956][ T44] ? __pfx___lock_release+0x10/0x10 [ 492.866076][ T44] ? __pfx_process_one_work+0x10/0x10 [ 492.866204][ T44] ? assign_work+0x16c/0x240 [ 492.866323][ T44] worker_thread+0x58c/0xce0 [ 492.866442][ T44] ? __pfx_worker_thread+0x10/0x10 [ 492.866561][ T44] kthread+0x28a/0x350 [ 492.866655][ T44] ? __pfx_kthread+0x10/0x10 [ 492.866774][ T44] ret_from_fork+0x31/0x70 [ 492.866894][ T44] ? __pfx_kthread+0x10/0x10 [ 492.867014][ T44] ret_from_fork_asm+0x1a/0x30 [ 492.867137][ T44] [ 492.867246][ T44] INFO: task ip:266 blocked for more than 368 seconds. [ 492.867385][ T44] Not tainted 6.12.0-rc5-virtme #1 [ 492.867498][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 492.867691][ T44] task:ip state:D stack:25640 pid:266 tgid:266 ppid:246 flags:0x00004002 [ 492.867963][ T44] Call Trace: [ 492.868055][ T44] [ 492.868118][ T44] __schedule+0xa19/0x1dc0 [ 492.868246][ T44] ? __pfx___schedule+0x10/0x10 [ 492.868371][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 492.868496][ T44] ? trace_lock_release+0x10e/0x180 [ 492.868626][ T44] schedule+0xdf/0x210 [ 492.868718][ T44] schedule_preempt_disabled+0x15/0x30 [ 492.868840][ T44] __mutex_lock+0x634/0xac0 [ 492.868975][ T44] ? rtnl_newlink+0x64b/0xa30 [ 492.869094][ T44] ? __pfx___mutex_lock+0x10/0x10 [ 492.869223][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 492.869344][ T44] ? rtnl_newlink+0x64b/0xa30 [ 492.869461][ T44] rtnl_newlink+0x64b/0xa30 [ 492.869580][ T44] ? __pfx_rtnl_newlink+0x10/0x10 [ 492.869700][ T44] ? find_held_lock+0x2c/0x110 [ 492.869821][ T44] ? __pfx___lock_release+0x10/0x10 [ 492.869941][ T44] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 492.870058][ T44] ? __pfx_rtnl_newlink+0x10/0x10 [ 492.870182][ T44] rtnetlink_rcv_msg+0x712/0xc10 [ 492.870302][ T44] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 492.870418][ T44] ? hlock_class+0x4e/0x130 [ 492.870535][ T44] ? mark_lock+0x38/0x3e0 [ 492.870635][ T44] ? __lock_acquire+0xb3f/0x1580 [ 492.870772][ T44] netlink_rcv_skb+0x130/0x360 [ 492.870894][ T44] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 492.871016][ T44] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 492.871139][ T44] ? netlink_deliver_tap+0x13e/0x340 [ 492.871268][ T44] ? netlink_deliver_tap+0xc3/0x340 [ 492.871389][ T44] netlink_unicast+0x44b/0x710 [ 492.871508][ T44] ? __pfx_netlink_unicast+0x10/0x10 [ 492.871632][ T44] ? find_held_lock+0x2c/0x110 [ 492.871759][ T44] ? __lock_release+0x103/0x460 [ 492.871877][ T44] netlink_sendmsg+0x723/0xbe0 [ 492.872012][ T44] ? __pfx_netlink_sendmsg+0x10/0x10 [ 492.872134][ T44] ? _copy_from_user+0x55/0xa0 [ 492.872286][ T44] ____sys_sendmsg+0x7ac/0xa10 [ 492.872409][ T44] ? __pfx_____sys_sendmsg+0x10/0x10 [ 492.872532][ T44] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 492.872689][ T44] ? __pfx_validate_chain+0x10/0x10 [ 492.872817][ T44] ? hlock_class+0x4e/0x130 [ 492.872943][ T44] ___sys_sendmsg+0xee/0x170 [ 492.873069][ T44] ? __pfx____sys_sendmsg+0x10/0x10 [ 492.873202][ T44] ? __lock_acquire+0xb3f/0x1580 [ 492.873328][ T44] ? find_held_lock+0x2c/0x110 [ 492.873457][ T44] ? __lock_release+0x103/0x460 [ 492.873584][ T44] ? __might_fault+0x11b/0x170 [ 492.873707][ T44] ? __pfx___lock_release+0x10/0x10 [ 492.873847][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 492.873969][ T44] ? __might_fault+0xc3/0x170 [ 492.874089][ T44] ? lock_acquire+0x32/0xc0 [ 492.874213][ T44] ? fdget+0x52/0x1e0 [ 492.874309][ T44] __sys_sendmsg+0xcd/0x170 [ 492.874432][ T44] ? __pfx___sys_sendmsg+0x10/0x10 [ 492.874569][ T44] ? rseq_update_cpu_node_id+0xe6/0x140 [ 492.874703][ T44] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 492.874862][ T44] do_syscall_64+0xc1/0x1d0 [ 492.875006][ T44] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 492.875161][ T44] RIP: 0033:0x7ff46d3c07b7 [ 492.875317][ T44] RSP: 002b:00007fff7ef3f3d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 492.875516][ T44] RAX: ffffffffffffffda RBX: 00007fff7ef3fb00 RCX: 00007ff46d3c07b7 [ 492.875700][ T44] RDX: 0000000000000000 RSI: 00007fff7ef3f440 RDI: 0000000000000005 [ 492.875909][ T44] RBP: 0000000000000005 R08: 000000000000006c R09: 00007fff7ef3e1b0 [ 492.876099][ T44] R10: 00007ff46d279708 R11: 0000000000000246 R12: 00007fff7ef3fb28 [ 492.876308][ T44] R13: 00000000672a19e4 R14: 0000000000496600 R15: 00007fff7ef3f530 [ 492.876510][ T44] [ 492.876603][ T44] INFO: lockdep is turned off. [ 615.742380][ T44] INFO: task kworker/u16:0:11 blocked for more than 368 seconds. [ 615.742904][ T44] Not tainted 6.12.0-rc5-virtme #1 [ 615.743070][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 615.743366][ T44] task:kworker/u16:0 state:D stack:28328 pid:11 tgid:11 ppid:2 flags:0x00004000 [ 615.743647][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 615.743807][ T44] Call Trace: [ 615.743911][ T44] [ 615.743979][ T44] __schedule+0xa19/0x1dc0 [ 615.744113][ T44] ? __pfx___schedule+0x10/0x10 [ 615.744245][ T44] ? __lock_release+0x103/0x460 [ 615.744375][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 615.744500][ T44] ? trace_lock_release+0x10e/0x180 [ 615.744626][ T44] schedule+0xdf/0x210 [ 615.744723][ T44] schedule_preempt_disabled+0x15/0x30 [ 615.744846][ T44] __mutex_lock+0x634/0xac0 [ 615.744973][ T44] ? do_raw_spin_unlock+0x58/0x220 [ 615.745110][ T44] ? addrconf_verify_work+0x12/0x30 [ 615.745239][ T44] ? __pfx___mutex_lock+0x10/0x10 [ 615.745372][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 615.745496][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 615.745617][ T44] ? addrconf_verify_work+0x12/0x30 [ 615.745739][ T44] addrconf_verify_work+0x12/0x30 [ 615.745873][ T44] process_one_work+0xe55/0x16d0 [ 615.745996][ T44] ? __pfx___lock_release+0x10/0x10 [ 615.746130][ T44] ? __pfx_process_one_work+0x10/0x10 [ 615.746259][ T44] ? assign_work+0x16c/0x240 [ 615.746382][ T44] worker_thread+0x58c/0xce0 [ 615.746506][ T44] ? __pfx_worker_thread+0x10/0x10 [ 615.746628][ T44] kthread+0x28a/0x350 [ 615.746719][ T44] ? __pfx_kthread+0x10/0x10 [ 615.746849][ T44] ret_from_fork+0x31/0x70 [ 615.746970][ T44] ? __pfx_kthread+0x10/0x10 [ 615.747138][ T44] ret_from_fork_asm+0x1a/0x30 [ 615.747272][ T44] [ 615.747374][ T44] INFO: task ip:266 blocked for more than 491 seconds. [ 615.747521][ T44] Not tainted 6.12.0-rc5-virtme #1 [ 615.747640][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 615.747840][ T44] task:ip state:D stack:25640 pid:266 tgid:266 ppid:246 flags:0x00004002 [ 615.748093][ T44] Call Trace: [ 615.748192][ T44] [ 615.748259][ T44] __schedule+0xa19/0x1dc0 [ 615.748393][ T44] ? __pfx___schedule+0x10/0x10 [ 615.748516][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 615.748641][ T44] ? trace_lock_release+0x10e/0x180 [ 615.748768][ T44] schedule+0xdf/0x210 [ 615.748859][ T44] schedule_preempt_disabled+0x15/0x30 [ 615.748999][ T44] __mutex_lock+0x634/0xac0 [ 615.749125][ T44] ? rtnl_newlink+0x64b/0xa30 [ 615.749263][ T44] ? __pfx___mutex_lock+0x10/0x10 [ 615.749392][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 615.749528][ T44] ? rtnl_newlink+0x64b/0xa30 [ 615.749648][ T44] rtnl_newlink+0x64b/0xa30 [ 615.749781][ T44] ? __pfx_rtnl_newlink+0x10/0x10 [ 615.749904][ T44] ? find_held_lock+0x2c/0x110 [ 615.750026][ T44] ? __pfx___lock_release+0x10/0x10 [ 615.750148][ T44] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 615.750276][ T44] ? __pfx_rtnl_newlink+0x10/0x10 [ 615.750400][ T44] rtnetlink_rcv_msg+0x712/0xc10 [ 615.750521][ T44] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 615.750641][ T44] ? hlock_class+0x4e/0x130 [ 615.750763][ T44] ? mark_lock+0x38/0x3e0 [ 615.750855][ T44] ? __lock_acquire+0xb3f/0x1580 [ 615.750978][ T44] netlink_rcv_skb+0x130/0x360 [ 615.751102][ T44] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 615.751231][ T44] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 615.751354][ T44] ? netlink_deliver_tap+0x13e/0x340 [ 615.751489][ T44] ? netlink_deliver_tap+0xc3/0x340 [ 615.751613][ T44] netlink_unicast+0x44b/0x710 [ 615.751739][ T44] ? __pfx_netlink_unicast+0x10/0x10 [ 615.751862][ T44] ? find_held_lock+0x2c/0x110 [ 615.751985][ T44] ? __lock_release+0x103/0x460 [ 615.752107][ T44] netlink_sendmsg+0x723/0xbe0 [ 615.752244][ T44] ? __pfx_netlink_sendmsg+0x10/0x10 [ 615.752368][ T44] ? _copy_from_user+0x55/0xa0 [ 615.752494][ T44] ____sys_sendmsg+0x7ac/0xa10 [ 615.752618][ T44] ? __pfx_____sys_sendmsg+0x10/0x10 [ 615.752740][ T44] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 615.752891][ T44] ? __pfx_validate_chain+0x10/0x10 [ 615.753015][ T44] ? hlock_class+0x4e/0x130 [ 615.753137][ T44] ___sys_sendmsg+0xee/0x170 [ 615.753269][ T44] ? __pfx____sys_sendmsg+0x10/0x10 [ 615.753392][ T44] ? __lock_acquire+0xb3f/0x1580 [ 615.753517][ T44] ? find_held_lock+0x2c/0x110 [ 615.753655][ T44] ? __lock_release+0x103/0x460 [ 615.753776][ T44] ? __might_fault+0x11b/0x170 [ 615.753898][ T44] ? __pfx___lock_release+0x10/0x10 [ 615.754017][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 615.754138][ T44] ? __might_fault+0xc3/0x170 [ 615.754278][ T44] ? lock_acquire+0x32/0xc0 [ 615.754408][ T44] ? fdget+0x52/0x1e0 [ 615.754506][ T44] __sys_sendmsg+0xcd/0x170 [ 615.754631][ T44] ? __pfx___sys_sendmsg+0x10/0x10 [ 615.754753][ T44] ? rseq_update_cpu_node_id+0xe6/0x140 [ 615.754894][ T44] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 615.755050][ T44] do_syscall_64+0xc1/0x1d0 [ 615.755183][ T44] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 615.755336][ T44] RIP: 0033:0x7ff46d3c07b7 [ 615.755467][ T44] RSP: 002b:00007fff7ef3f3d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 615.755664][ T44] RAX: ffffffffffffffda RBX: 00007fff7ef3fb00 RCX: 00007ff46d3c07b7 [ 615.755843][ T44] RDX: 0000000000000000 RSI: 00007fff7ef3f440 RDI: 0000000000000005 [ 615.756025][ T44] RBP: 0000000000000005 R08: 000000000000006c R09: 00007fff7ef3e1b0 [ 615.756210][ T44] R10: 00007ff46d279708 R11: 0000000000000246 R12: 00007fff7ef3fb28 [ 615.756432][ T44] R13: 00000000672a19e4 R14: 0000000000496600 R15: 00007fff7ef3f530 [ 615.756619][ T44] [ 615.756712][ T44] INFO: lockdep is turned off. [ 738.622292][ T44] INFO: task kworker/u16:0:11 blocked for more than 491 seconds. [ 738.622734][ T44] Not tainted 6.12.0-rc5-virtme #1 [ 738.622902][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 738.623230][ T44] task:kworker/u16:0 state:D stack:28328 pid:11 tgid:11 ppid:2 flags:0x00004000 [ 738.623588][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 738.623791][ T44] Call Trace: [ 738.623885][ T44] [ 738.623953][ T44] __schedule+0xa19/0x1dc0 [ 738.624083][ T44] ? __pfx___schedule+0x10/0x10 [ 738.624212][ T44] ? __lock_release+0x103/0x460 [ 738.624342][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 738.624469][ T44] ? trace_lock_release+0x10e/0x180 [ 738.624591][ T44] schedule+0xdf/0x210 [ 738.624685][ T44] schedule_preempt_disabled+0x15/0x30 [ 738.624806][ T44] __mutex_lock+0x634/0xac0 [ 738.624931][ T44] ? do_raw_spin_unlock+0x58/0x220 [ 738.625051][ T44] ? addrconf_verify_work+0x12/0x30 [ 738.625182][ T44] ? __pfx___mutex_lock+0x10/0x10 [ 738.625305][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 738.625430][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 738.625551][ T44] ? addrconf_verify_work+0x12/0x30 [ 738.625671][ T44] addrconf_verify_work+0x12/0x30 [ 738.625791][ T44] process_one_work+0xe55/0x16d0 [ 738.625915][ T44] ? __pfx___lock_release+0x10/0x10 [ 738.626034][ T44] ? __pfx_process_one_work+0x10/0x10 [ 738.626155][ T44] ? assign_work+0x16c/0x240 [ 738.626315][ T44] worker_thread+0x58c/0xce0 [ 738.626439][ T44] ? __pfx_worker_thread+0x10/0x10 [ 738.626563][ T44] kthread+0x28a/0x350 [ 738.626656][ T44] ? __pfx_kthread+0x10/0x10 [ 738.626779][ T44] ret_from_fork+0x31/0x70 [ 738.626904][ T44] ? __pfx_kthread+0x10/0x10 [ 738.627028][ T44] ret_from_fork_asm+0x1a/0x30 [ 738.627155][ T44] [ 738.627267][ T44] INFO: task ip:266 blocked for more than 614 seconds. [ 738.627420][ T44] Not tainted 6.12.0-rc5-virtme #1 [ 738.627546][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 738.627742][ T44] task:ip state:D stack:25640 pid:266 tgid:266 ppid:246 flags:0x00004002 [ 738.627986][ T44] Call Trace: [ 738.628077][ T44] [ 738.628138][ T44] __schedule+0xa19/0x1dc0 [ 738.628263][ T44] ? __pfx___schedule+0x10/0x10 [ 738.628388][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 738.628509][ T44] ? trace_lock_release+0x10e/0x180 [ 738.628644][ T44] schedule+0xdf/0x210 [ 738.628734][ T44] schedule_preempt_disabled+0x15/0x30 [ 738.628853][ T44] __mutex_lock+0x634/0xac0 [ 738.628992][ T44] ? rtnl_newlink+0x64b/0xa30 [ 738.629118][ T44] ? __pfx___mutex_lock+0x10/0x10 [ 738.629246][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 738.629377][ T44] ? rtnl_newlink+0x64b/0xa30 [ 738.629522][ T44] rtnl_newlink+0x64b/0xa30 [ 738.629650][ T44] ? __pfx_rtnl_newlink+0x10/0x10 [ 738.629779][ T44] ? find_held_lock+0x2c/0x110 [ 738.629916][ T44] ? __pfx___lock_release+0x10/0x10 [ 738.630042][ T44] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 738.630183][ T44] ? __pfx_rtnl_newlink+0x10/0x10 [ 738.630320][ T44] rtnetlink_rcv_msg+0x712/0xc10 [ 738.630442][ T44] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 738.630569][ T44] ? hlock_class+0x4e/0x130 [ 738.630695][ T44] ? mark_lock+0x38/0x3e0 [ 738.630789][ T44] ? __lock_acquire+0xb3f/0x1580 [ 738.630912][ T44] netlink_rcv_skb+0x130/0x360 [ 738.631054][ T44] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 738.631186][ T44] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 738.631311][ T44] ? netlink_deliver_tap+0x13e/0x340 [ 738.631438][ T44] ? netlink_deliver_tap+0xc3/0x340 [ 738.631572][ T44] netlink_unicast+0x44b/0x710 [ 738.631697][ T44] ? __pfx_netlink_unicast+0x10/0x10 [ 738.631820][ T44] ? find_held_lock+0x2c/0x110 [ 738.631944][ T44] ? __lock_release+0x103/0x460 [ 738.632068][ T44] netlink_sendmsg+0x723/0xbe0 [ 738.632196][ T44] ? __pfx_netlink_sendmsg+0x10/0x10 [ 738.632320][ T44] ? _copy_from_user+0x55/0xa0 [ 738.632458][ T44] ____sys_sendmsg+0x7ac/0xa10 [ 738.632585][ T44] ? __pfx_____sys_sendmsg+0x10/0x10 [ 738.632708][ T44] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 738.632859][ T44] ? __pfx_validate_chain+0x10/0x10 [ 738.632983][ T44] ? hlock_class+0x4e/0x130 [ 738.633105][ T44] ___sys_sendmsg+0xee/0x170 [ 738.633231][ T44] ? __pfx____sys_sendmsg+0x10/0x10 [ 738.633375][ T44] ? __lock_acquire+0xb3f/0x1580 [ 738.633499][ T44] ? find_held_lock+0x2c/0x110 [ 738.633628][ T44] ? __lock_release+0x103/0x460 [ 738.633749][ T44] ? __might_fault+0x11b/0x170 [ 738.633873][ T44] ? __pfx___lock_release+0x10/0x10 [ 738.633996][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 738.634120][ T44] ? __might_fault+0xc3/0x170 [ 738.634244][ T44] ? lock_acquire+0x32/0xc0 [ 738.634368][ T44] ? fdget+0x52/0x1e0 [ 738.634464][ T44] __sys_sendmsg+0xcd/0x170 [ 738.634588][ T44] ? __pfx___sys_sendmsg+0x10/0x10 [ 738.634736][ T44] ? rseq_update_cpu_node_id+0xe6/0x140 [ 738.634859][ T44] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 738.635011][ T44] do_syscall_64+0xc1/0x1d0 [ 738.635133][ T44] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 738.635289][ T44] RIP: 0033:0x7ff46d3c07b7 [ 738.635417][ T44] RSP: 002b:00007fff7ef3f3d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 738.635596][ T44] RAX: ffffffffffffffda RBX: 00007fff7ef3fb00 RCX: 00007ff46d3c07b7 [ 738.635780][ T44] RDX: 0000000000000000 RSI: 00007fff7ef3f440 RDI: 0000000000000005 [ 738.635956][ T44] RBP: 0000000000000005 R08: 000000000000006c R09: 00007fff7ef3e1b0 [ 738.636135][ T44] R10: 00007ff46d279708 R11: 0000000000000246 R12: 00007fff7ef3fb28 [ 738.636338][ T44] R13: 00000000672a19e4 R14: 0000000000496600 R15: 00007fff7ef3f530 [ 738.636531][ T44] [ 738.636625][ T44] INFO: lockdep is turned off. [ 861.502329][ T44] INFO: task kworker/u16:0:11 blocked for more than 614 seconds. [ 861.502710][ T44] Not tainted 6.12.0-rc5-virtme #1 [ 861.502827][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 861.503020][ T44] task:kworker/u16:0 state:D stack:28328 pid:11 tgid:11 ppid:2 flags:0x00004000 [ 861.503280][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 861.503481][ T44] Call Trace: [ 861.503574][ T44] [ 861.503640][ T44] __schedule+0xa19/0x1dc0 [ 861.503767][ T44] ? __pfx___schedule+0x10/0x10 [ 861.503899][ T44] ? __lock_release+0x103/0x460 [ 861.504021][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 861.504161][ T44] ? trace_lock_release+0x10e/0x180 [ 861.504293][ T44] schedule+0xdf/0x210 [ 861.504386][ T44] schedule_preempt_disabled+0x15/0x30 [ 861.504512][ T44] __mutex_lock+0x634/0xac0 [ 861.504642][ T44] ? do_raw_spin_unlock+0x58/0x220 [ 861.504773][ T44] ? addrconf_verify_work+0x12/0x30 [ 861.504896][ T44] ? __pfx___mutex_lock+0x10/0x10 [ 861.505019][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 861.505141][ T44] ? trace_lock_acquire+0x14d/0x1f0 [ 861.505268][ T44] ? addrconf_verify_work+0x12/0x30 [ 861.505400][ T44] addrconf_verify_work+0x12/0x30 [ 861.505545][ T44] process_one_work+0xe55/0x16d0 [ 861.505677][ T44] ? __pfx___lock_release+0x10/0x10 [ 861.505817][ T44] ? __pfx_process_one_work+0x10/0x10 [ 861.505941][ T44] ? assign_work+0x16c/0x240 [ 861.506064][ T44] worker_thread+0x58c/0xce0 [ 861.506195][ T44] ? __pfx_worker_thread+0x10/0x10 [ 861.506320][ T44] kthread+0x28a/0x350 [ 861.506418][ T44] ? __pfx_kthread+0x10/0x10 [ 861.506541][ T44] ret_from_fork+0x31/0x70 [ 861.506675][ T44] ? __pfx_kthread+0x10/0x10 [ 861.506847][ T44] ret_from_fork_asm+0x1a/0x30 [ 861.506971][ T44] [ 861.507062][ T44] Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings [ 861.507276][ T44] INFO: lockdep is turned off. WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr WAIT TIMEOUT stderr