[ 615.742618][ T44] INFO: task kworker/u16:0:12 blocked for more than 368 seconds. [ 615.742908][ T44] Not tainted 6.19.0-rc1-virtme #1 [ 615.743046][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 615.743278][ T44] task:kworker/u16:0 state:D stack:27952 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 615.743597][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 615.743791][ T44] Call Trace: [ 615.743891][ T44] [ 615.743958][ T44] __schedule+0xae2/0x1720 [ 615.744086][ T44] ? io_schedule_timeout+0x130/0x130 [ 615.744208][ T44] ? __lock_release.isra.0+0x59/0x170 [ 615.744333][ T44] ? __lock_release.isra.0+0x59/0x170 [ 615.744456][ T44] schedule+0xd4/0x260 [ 615.744552][ T44] schedule_preempt_disabled+0x18/0x30 [ 615.744680][ T44] __mutex_lock+0xd76/0x1f20 [ 615.744807][ T44] ? addrconf_verify_work+0x12/0x30 [ 615.744925][ T44] ? ww_mutex_lock+0x160/0x160 [ 615.745046][ T44] ? process_one_work+0xd16/0x1390 [ 615.745167][ T44] ? rcu_is_watching+0x15/0xd0 [ 615.745281][ T44] ? rcu_is_watching+0x15/0xd0 [ 615.745399][ T44] ? addrconf_verify_work+0x12/0x30 [ 615.745518][ T44] addrconf_verify_work+0x12/0x30 [ 615.745638][ T44] process_one_work+0xd57/0x1390 [ 615.745759][ T44] ? pwq_dec_nr_in_flight+0x700/0x700 [ 615.745879][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 615.745995][ T44] ? assign_work+0x152/0x380 [ 615.746110][ T44] worker_thread+0x4d6/0xd40 [ 615.746235][ T44] ? process_one_work+0x1390/0x1390 [ 615.746348][ T44] kthread+0x355/0x5b0 [ 615.746435][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 615.746554][ T44] ? __lock_release.isra.0+0x59/0x170 [ 615.746671][ T44] ? rcu_is_watching+0x15/0xd0 [ 615.746785][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 615.746901][ T44] ret_from_fork+0x3fb/0x510 [ 615.747016][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140 [ 615.747163][ T44] ? __switch_to+0x53c/0xd00 [ 615.747276][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 615.747389][ T44] ret_from_fork_asm+0x11/0x20 [ 615.747512][ T44] [ 615.747613][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task ip:256. [ 615.747800][ T44] Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings [ 615.747995][ T44] [ 615.747995][ T44] Showing all locks held in the system: [ 615.748157][ T44] 3 locks held by kworker/u16:0/12: [ 615.748267][ T44] #0: ff11000009077148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xcb4/0x1390 [ 615.748493][ T44] #1: ffa00000000c7cc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0xd16/0x1390 [ 615.748786][ T44] #2: ffffffffa3485768 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x12/0x30 [ 615.748980][ T44] 3 locks held by kworker/2:0/28: [ 615.749089][ T44] #0: ff11000001139b48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0xcb4/0x1390 [ 615.749312][ T44] #1: ffa00000001ffcc0 ((work_completion)(&(&vi->refill)->work)){+.+.}-{0:0}, at: process_one_work+0xd16/0x1390 [ 615.749562][ T44] #2: ff11000008b02c98 (&dev->lock){+.+.}-{4:4}, at: napi_disable+0x3b/0x80 [ 615.749841][ T44] 1 lock held by khungtaskd/44: [ 615.749952][ T44] #0: ffffffffa2d71040 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire.constprop.0+0x7/0x30 [ 615.750179][ T44] 3 locks held by kworker/3:1/72: [ 615.750289][ T44] #0: ff11000001139b48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0xcb4/0x1390 [ 615.750512][ T44] #1: ffa00000004d7cc0 ((work_completion)(&pool->work)){+.+.}-{0:0}, at: process_one_work+0xd16/0x1390 [ 615.750736][ T44] #2: ffffffffa3485768 (rtnl_mutex){+.+.}-{4:4}, at: xp_release_deferred+0x1b/0x1e0 [ 615.750939][ T44] 2 locks held by ip/256: [ 615.751022][ T44] #0: ffffffffa3485768 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x6fc/0xe90 [ 615.751216][ T44] #1: ff11000008b02c98 (&dev->lock){+.+.}-{4:4}, at: napi_enable+0x3b/0x80 [ 615.751410][ T44] 1 lock held by ip/321: [ 615.751497][ T44] #0: ffffffffa3485768 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x2ab/0xb90 [ 615.751695][ T44] [ 615.751751][ T44] ============================================= [ 615.751751][ T44]