[ 738.618420][ T44] INFO: task kworker/u16:0:12 blocked for more than 368 seconds. [ 738.618771][ T44] Not tainted 6.18.0-virtme #1 [ 738.618931][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 738.619183][ T44] task:kworker/u16:0 state:D stack:27680 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000 [ 738.619566][ T44] Workqueue: ipv6_addrconf addrconf_verify_work [ 738.619744][ T44] Call Trace: [ 738.619852][ T44] [ 738.619927][ T44] __schedule+0xae2/0x1720 [ 738.620071][ T44] ? io_schedule_timeout+0x130/0x130 [ 738.620207][ T44] ? __lock_release.isra.0+0x59/0x170 [ 738.620335][ T44] ? __lock_release.isra.0+0x59/0x170 [ 738.620477][ T44] schedule+0xd4/0x260 [ 738.620580][ T44] schedule_preempt_disabled+0x18/0x30 [ 738.620709][ T44] __mutex_lock+0xd76/0x1f20 [ 738.620842][ T44] ? addrconf_verify_work+0x12/0x30 [ 738.620970][ T44] ? ww_mutex_lock+0x160/0x160 [ 738.621104][ T44] ? process_one_work+0xd16/0x1390 [ 738.621232][ T44] ? rcu_is_watching+0x15/0xd0 [ 738.621357][ T44] ? rcu_is_watching+0x15/0xd0 [ 738.621494][ T44] ? addrconf_verify_work+0x12/0x30 [ 738.621626][ T44] addrconf_verify_work+0x12/0x30 [ 738.621748][ T44] process_one_work+0xd57/0x1390 [ 738.621887][ T44] ? pwq_dec_nr_in_flight+0x700/0x700 [ 738.622009][ T44] ? lock_acquire.part.0+0xbc/0x260 [ 738.622136][ T44] ? assign_work+0x152/0x380 [ 738.622259][ T44] worker_thread+0x4d6/0xd40 [ 738.622390][ T44] ? process_one_work+0x1390/0x1390 [ 738.622518][ T44] kthread+0x355/0x5b0 [ 738.622612][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 738.622728][ T44] ? __lock_release.isra.0+0x59/0x170 [ 738.622856][ T44] ? rcu_is_watching+0x15/0xd0 [ 738.622973][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 738.623093][ T44] ret_from_fork+0x3fb/0x510 [ 738.623217][ T44] ? arch_exit_to_user_mode_prepare.isra.0+0x140/0x140 [ 738.623403][ T44] ? __switch_to+0x602/0xd00 [ 738.623522][ T44] ? kthread_is_per_cpu+0xe0/0xe0 [ 738.623639][ T44] ret_from_fork_asm+0x11/0x20 [ 738.623761][ T44] [ 738.623875][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task ip:974. [ 738.624066][ T44] Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings [ 738.624277][ T44] [ 738.624277][ T44] Showing all locks held in the system: [ 738.624539][ T44] 3 locks held by kworker/u16:0/12: [ 738.624652][ T44] #0: ff11000009146548 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0xcb4/0x1390 [ 738.624879][ T44] #1: ffa00000000c7cc0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0xd16/0x1390 [ 738.625156][ T44] #2: ffffffff91c78aa8 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x12/0x30 [ 738.625357][ T44] 3 locks held by kworker/2:0/28: [ 738.625475][ T44] 1 lock held by khungtaskd/44: [ 738.625586][ T44] #0: ffffffff91570ba0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire.constprop.0+0x7/0x30 [ 738.625810][ T44] 3 locks held by kworker/2:1/52: [ 738.625928][ T44] #0: ff11000001139b48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0xcb4/0x1390 [ 738.626160][ T44] #1: ffa000000038fcc0 ((work_completion)(&pool->work)){+.+.}-{0:0}, at: process_one_work+0xd16/0x1390 [ 738.626391][ T44] #2: ffffffff91c78aa8 (rtnl_mutex){+.+.}-{4:4}, at: xp_release_deferred+0x1b/0x1e0 [ 738.626592][ T44] 2 locks held by ip/974: [ 738.626676][ T44] #0: ffffffff91c78aa8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x5f9/0xb40 [ 738.626881][ T44] #1: ff11000008ae2c98 (&dev->lock){+.+.}-{4:4}, at: napi_enable+0x3b/0x80 [ 738.627077][ T44] 1 lock held by ip/1039: [ 738.627159][ T44] #0: ffffffff91c78aa8 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x2ab/0xb90 [ 738.627354][ T44] [ 738.627426][ T44] ============================================= [ 738.627426][ T44]