[ 26.540915][ T256] [ 26.541012][ T256] ===================================== [ 26.541153][ T256] WARNING: bad unlock balance detected! [ 26.541293][ T256] 6.12.0-rc5-virtme #1 Not tainted [ 26.541432][ T256] ------------------------------------- [ 26.541572][ T256] ip/256 is trying to release lock (rtnl_mutex) at: [ 26.541749][ T256] [] __rtnl_unlock+0x69/0xf0 [ 26.541928][ T256] but there are no more locks to release! [ 26.542075][ T256] [ 26.542075][ T256] other info that might help us debug this: [ 26.542285][ T256] no locks held by ip/256. [ 26.542427][ T256] [ 26.542427][ T256] stack backtrace: [ 26.542600][ T256] CPU: 3 UID: 0 PID: 256 Comm: ip Not tainted 6.12.0-rc5-virtme #1 [ 26.542813][ T256] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 26.543130][ T256] Call Trace: [ 26.543244][ T256] [ 26.543319][ T256] dump_stack_lvl+0x82/0xd0 [ 26.543466][ T256] ? __rtnl_unlock+0x69/0xf0 [ 26.543609][ T256] print_unlock_imbalance_bug+0x1aa/0x1f0 [ 26.543753][ T256] __lock_release+0x2f7/0x460 [ 26.543896][ T256] ? __pfx___lock_release+0x10/0x10 [ 26.544040][ T256] ? __rtnl_unlock+0x69/0xf0 [ 26.544182][ T256] lock_release+0xd7/0x140 [ 26.544323][ T256] __mutex_unlock_slowpath+0x8f/0x3b0 [ 26.544467][ T256] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 26.544608][ T256] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 26.544787][ T256] ? rtnl_link_ops_get+0x187/0x220 [ 26.544932][ T256] __rtnl_unlock+0x69/0xf0 [ 26.545073][ T256] rtnl_newlink+0x7fd/0xa30 [ 26.545215][ T256] ? __pfx_rtnl_newlink+0x10/0x10 [ 26.545356][ T256] ? find_held_lock+0x2c/0x110 [ 26.545501][ T256] ? __lock_release+0x103/0x460 [ 26.545642][ T256] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 26.545785][ T256] ? __pfx___lock_release+0x10/0x10 [ 26.545932][ T256] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 26.546073][ T256] ? __pfx_rtnl_newlink+0x10/0x10 [ 26.546214][ T256] rtnetlink_rcv_msg+0x712/0xc10 [ 26.546359][ T256] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 26.546501][ T256] ? hlock_class+0x4e/0x130 [ 26.546643][ T256] ? mark_lock+0x38/0x3e0 [ 26.546754][ T256] ? __lock_acquire+0xb3f/0x1580 [ 26.546898][ T256] netlink_rcv_skb+0x130/0x360 [ 26.547041][ T256] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 26.547183][ T256] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 26.547335][ T256] ? netlink_deliver_tap+0x13e/0x340 [ 26.547478][ T256] ? netlink_deliver_tap+0xc3/0x340 [ 26.547622][ T256] netlink_unicast+0x44b/0x710 [ 26.547766][ T256] ? __pfx_netlink_unicast+0x10/0x10 [ 26.547908][ T256] ? find_held_lock+0x2c/0x110 [ 26.548052][ T256] netlink_sendmsg+0x723/0xbe0 [ 26.548197][ T256] ? __pfx_netlink_sendmsg+0x10/0x10 [ 26.548347][ T256] ____sys_sendmsg+0x7ac/0xa10 [ 26.548504][ T256] ? __pfx_____sys_sendmsg+0x10/0x10 [ 26.548646][ T256] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 26.548822][ T256] ? hlock_class+0x4e/0x130 [ 26.548964][ T256] ? validate_chain+0x130/0x9b0 [ 26.549107][ T256] ___sys_sendmsg+0xee/0x170 [ 26.549250][ T256] ? __pfx_validate_chain+0x10/0x10 [ 26.549395][ T256] ? __pfx____sys_sendmsg+0x10/0x10 [ 26.549539][ T256] ? __lock_acquire+0xb3f/0x1580 [ 26.549685][ T256] ? find_held_lock+0x2c/0x110 [ 26.549826][ T256] ? __lock_release+0x103/0x460 [ 26.549967][ T256] ? __might_fault+0x11b/0x170 [ 26.550126][ T256] ? fdget+0x52/0x1e0 [ 26.550234][ T256] ? lock_acquire+0x32/0xc0 [ 26.550377][ T256] __sys_sendmsg+0xcd/0x170 [ 26.550531][ T256] ? __pfx___sys_sendmsg+0x10/0x10 [ 26.550674][ T256] ? rseq_update_cpu_node_id+0xe6/0x140 [ 26.550821][ T256] do_syscall_64+0xc1/0x1d0 [ 26.550971][ T256] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 26.551164][ T256] RIP: 0033:0x7f57d84c87b7 [ 26.551325][ T256] 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 [ 26.551822][ T256] RSP: 002b:00007ffd0990dea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 26.552039][ T256] RAX: ffffffffffffffda RBX: 00007ffd0990e5d0 RCX: 00007f57d84c87b7 [ 26.552252][ T256] RDX: 0000000000000000 RSI: 00007ffd0990df10 RDI: 0000000000000005 [ 26.552467][ T256] RBP: 0000000000000003 R08: 000000000000005c R09: 0000000000000002 [ 26.552679][ T256] R10: 00007f57d8381708 R11: 0000000000000246 R12: 00007ffd0990e5e8 [ 26.552890][ T256] R13: 00000000672a0752 R14: 0000000000496600 R15: 00007ffd0990dff8 [ 26.553109][ T256] [ 247.088549][ T43] INFO: task ip:256 blocked for more than 122 seconds. [ 247.089158][ T43] Not tainted 6.12.0-rc5-virtme #1 [ 247.089564][ T43] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 247.089921][ T43] task:ip state:D stack:25640 pid:256 tgid:256 ppid:242 flags:0x00004002 [ 247.090284][ T43] Call Trace: [ 247.090400][ T43] [ 247.090474][ T43] __schedule+0xa19/0x1dc0 [ 247.090624][ T43] ? __pfx___schedule+0x10/0x10 [ 247.090764][ T43] ? trace_lock_acquire+0x14d/0x1f0 [ 247.090905][ T43] ? trace_lock_release+0x10e/0x180 [ 247.091039][ T43] schedule+0xdf/0x210 [ 247.091144][ T43] schedule_preempt_disabled+0x15/0x30 [ 247.091283][ T43] __mutex_lock+0x634/0xac0 [ 247.091428][ T43] ? rtnl_newlink+0x64b/0xa30 [ 247.091564][ T43] ? __pfx___mutex_lock+0x10/0x10 [ 247.091712][ T43] ? trace_lock_acquire+0x14d/0x1f0 [ 247.091851][ T43] ? rtnl_newlink+0x64b/0xa30 [ 247.091990][ T43] rtnl_newlink+0x64b/0xa30 [ 247.092167][ T43] ? __pfx_rtnl_newlink+0x10/0x10 [ 247.092329][ T43] ? find_held_lock+0x2c/0x110 [ 247.092489][ T43] ? __pfx___lock_release+0x10/0x10 [ 247.092634][ T43] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 247.092788][ T43] ? __pfx_rtnl_newlink+0x10/0x10 [ 247.092933][ T43] rtnetlink_rcv_msg+0x712/0xc10 [ 247.093088][ T43] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 247.093228][ T43] ? hlock_class+0x4e/0x130 [ 247.093375][ T43] ? mark_lock+0x38/0x3e0 [ 247.093478][ T43] ? __lock_acquire+0xb3f/0x1580 [ 247.093612][ T43] netlink_rcv_skb+0x130/0x360 [ 247.093750][ T43] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 247.093881][ T43] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 247.094020][ T43] ? netlink_deliver_tap+0x13e/0x340 [ 247.094157][ T43] ? netlink_deliver_tap+0xc3/0x340 [ 247.094291][ T43] netlink_unicast+0x44b/0x710 [ 247.094429][ T43] ? __pfx_netlink_unicast+0x10/0x10 [ 247.094562][ T43] ? find_held_lock+0x2c/0x110 [ 247.094697][ T43] netlink_sendmsg+0x723/0xbe0 [ 247.094835][ T43] ? __pfx_netlink_sendmsg+0x10/0x10 [ 247.094967][ T43] ____sys_sendmsg+0x7ac/0xa10 [ 247.095102][ T43] ? __pfx_____sys_sendmsg+0x10/0x10 [ 247.095252][ T43] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 247.095439][ T43] ? hlock_class+0x4e/0x130 [ 247.095576][ T43] ? validate_chain+0x130/0x9b0 [ 247.095711][ T43] ___sys_sendmsg+0xee/0x170 [ 247.095846][ T43] ? __pfx_validate_chain+0x10/0x10 [ 247.095983][ T43] ? __pfx____sys_sendmsg+0x10/0x10 [ 247.096120][ T43] ? __lock_acquire+0xb3f/0x1580 [ 247.096256][ T43] ? find_held_lock+0x2c/0x110 [ 247.096414][ T43] ? __lock_release+0x103/0x460 [ 247.096549][ T43] ? __might_fault+0x11b/0x170 [ 247.096686][ T43] ? fdget+0x52/0x1e0 [ 247.096789][ T43] ? lock_acquire+0x32/0xc0 [ 247.096923][ T43] __sys_sendmsg+0xcd/0x170 [ 247.097088][ T43] ? __pfx___sys_sendmsg+0x10/0x10 [ 247.097227][ T43] ? rseq_update_cpu_node_id+0xe6/0x140 [ 247.097380][ T43] do_syscall_64+0xc1/0x1d0 [ 247.097523][ T43] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 247.097693][ T43] RIP: 0033:0x7f57d84c87b7 [ 247.097837][ T43] RSP: 002b:00007ffd0990dea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 247.098058][ T43] RAX: ffffffffffffffda RBX: 00007ffd0990e5d0 RCX: 00007f57d84c87b7 [ 247.098265][ T43] RDX: 0000000000000000 RSI: 00007ffd0990df10 RDI: 0000000000000005 [ 247.098475][ T43] RBP: 0000000000000003 R08: 000000000000005c R09: 0000000000000002 [ 247.098695][ T43] R10: 00007f57d8381708 R11: 0000000000000246 R12: 00007ffd0990e5e8 [ 247.098894][ T43] R13: 00000000672a0752 R14: 0000000000496600 R15: 00007ffd0990dff8 [ 247.099096][ T43] [ 247.099210][ T43] INFO: lockdep is turned off. HARD STOP (338.330751) WAIT TIMEOUT stderr Ctrl-C stderr Ctrl-C stderr [ 369.968495][ T43] INFO: task kworker/u16:1:76 blocked for more than 122 seconds. [ 369.968819][ T43] Not tainted 6.12.0-rc5-virtme #1 [ 369.968961][ T43] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 369.969199][ T43] task:kworker/u16:1 state:D stack:30248 pid:76 tgid:76 ppid:2 flags:0x00004000 [ 369.969519][ T43] Workqueue: ipv6_addrconf addrconf_verify_work [ 369.969708][ T43] Call Trace: [ 369.969820][ T43] [ 369.969900][ T43] __schedule+0xa19/0x1dc0 [ 369.970052][ T43] ? __pfx___schedule+0x10/0x10 [ 369.970199][ T43] ? __lock_release+0x103/0x460 [ 369.970367][ T43] ? trace_lock_acquire+0x14d/0x1f0 [ 369.970515][ T43] ? trace_lock_release+0x10e/0x180 [ 369.970663][ T43] schedule+0xdf/0x210 [ 369.970774][ T43] schedule_preempt_disabled+0x15/0x30 [ 369.970915][ T43] __mutex_lock+0x634/0xac0 [ 369.971060][ T43] ? do_raw_spin_unlock+0x58/0x220 [ 369.971206][ T43] ? addrconf_verify_work+0x12/0x30 [ 369.971361][ T43] ? __pfx___mutex_lock+0x10/0x10 [ 369.971508][ T43] ? trace_lock_acquire+0x14d/0x1f0 [ 369.971652][ T43] ? trace_lock_acquire+0x14d/0x1f0 [ 369.971800][ T43] ? addrconf_verify_work+0x12/0x30 [ 369.971944][ T43] addrconf_verify_work+0x12/0x30 [ 369.972088][ T43] process_one_work+0xe55/0x16d0 [ 369.972232][ T43] ? __pfx___lock_release+0x10/0x10 [ 369.972384][ T43] ? __pfx_process_one_work+0x10/0x10 [ 369.972539][ T43] ? assign_work+0x16c/0x240 [ 369.972685][ T43] worker_thread+0x58c/0xce0 [ 369.972827][ T43] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 369.973006][ T43] ? __pfx_worker_thread+0x10/0x10 [ 369.973149][ T43] ? __pfx_worker_thread+0x10/0x10 [ 369.973293][ T43] kthread+0x28a/0x350 [ 369.973417][ T43] ? __pfx_kthread+0x10/0x10 [ 369.973564][ T43] ret_from_fork+0x31/0x70 [ 369.973710][ T43] ? __pfx_kthread+0x10/0x10 [ 369.973857][ T43] ret_from_fork_asm+0x1a/0x30 [ 369.974005][ T43] [ 369.974115][ T43] INFO: task ip:256 blocked for more than 245 seconds. [ 369.974286][ T43] Not tainted 6.12.0-rc5-virtme #1 [ 369.974429][ T43] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 369.974659][ T43] task:ip state:D stack:25640 pid:256 tgid:256 ppid:242 flags:0x00004006 [ 369.974918][ T43] Call Trace: [ 369.975016][ T43] [ 369.975083][ T43] __schedule+0xa19/0x1dc0 [ 369.975215][ T43] ? __pfx___schedule+0x10/0x10 [ 369.975346][ T43] ? trace_lock_acquire+0x14d/0x1f0 [ 369.975487][ T43] ? trace_lock_release+0x10e/0x180 [ 369.975617][ T43] schedule+0xdf/0x210 [ 369.975715][ T43] schedule_preempt_disabled+0x15/0x30 [ 369.975844][ T43] __mutex_lock+0x634/0xac0 [ 369.975981][ T43] ? rtnl_newlink+0x64b/0xa30 [ 369.976110][ T43] ? __pfx___mutex_lock+0x10/0x10 [ 369.976257][ T43] ? trace_lock_acquire+0x14d/0x1f0 [ 369.976398][ T43] ? rtnl_newlink+0x64b/0xa30 [ 369.976524][ T43] rtnl_newlink+0x64b/0xa30 [ 369.976655][ T43] ? __pfx_rtnl_newlink+0x10/0x10 [ 369.976787][ T43] ? find_held_lock+0x2c/0x110 [ 369.976918][ T43] ? __pfx___lock_release+0x10/0x10 [ 369.977049][ T43] ? rtnetlink_rcv_msg+0x6ef/0xc10 [ 369.977183][ T43] ? __pfx_rtnl_newlink+0x10/0x10 [ 369.977309][ T43] rtnetlink_rcv_msg+0x712/0xc10 [ 369.977451][ T43] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 369.977583][ T43] ? hlock_class+0x4e/0x130 [ 369.977716][ T43] ? mark_lock+0x38/0x3e0 [ 369.977816][ T43] ? __lock_acquire+0xb3f/0x1580 [ 369.977946][ T43] netlink_rcv_skb+0x130/0x360 [ 369.978076][ T43] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 369.978210][ T43] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 369.978343][ T43] ? netlink_deliver_tap+0x13e/0x340 [ 369.978480][ T43] ? netlink_deliver_tap+0xc3/0x340 [ 369.978611][ T43] netlink_unicast+0x44b/0x710 [ 369.978742][ T43] ? __pfx_netlink_unicast+0x10/0x10 [ 369.978874][ T43] ? find_held_lock+0x2c/0x110 [ 369.979003][ T43] netlink_sendmsg+0x723/0xbe0 [ 369.979135][ T43] ? __pfx_netlink_sendmsg+0x10/0x10 [ 369.979271][ T43] ____sys_sendmsg+0x7ac/0xa10 [ 369.979408][ T43] ? __pfx_____sys_sendmsg+0x10/0x10 [ 369.979535][ T43] ? __pfx_copy_msghdr_from_user+0x10/0x10 [ 369.979694][ T43] ? hlock_class+0x4e/0x130 [ 369.979824][ T43] ? validate_chain+0x130/0x9b0 [ 369.979955][ T43] ___sys_sendmsg+0xee/0x170 [ 369.980085][ T43] ? __pfx_validate_chain+0x10/0x10 [ 369.980219][ T43] ? __pfx____sys_sendmsg+0x10/0x10 [ 369.980360][ T43] ? __lock_acquire+0xb3f/0x1580 [ 369.980496][ T43] ? find_held_lock+0x2c/0x110 [ 369.980626][ T43] ? __lock_release+0x103/0x460 [ 369.980755][ T43] ? __might_fault+0x11b/0x170 [ 369.980886][ T43] ? fdget+0x52/0x1e0 [ 369.980986][ T43] ? lock_acquire+0x32/0xc0 [ 369.981119][ T43] __sys_sendmsg+0xcd/0x170 [ 369.981250][ T43] ? __pfx___sys_sendmsg+0x10/0x10 [ 369.981389][ T43] ? rseq_update_cpu_node_id+0xe6/0x140 [ 369.981533][ T43] do_syscall_64+0xc1/0x1d0 [ 369.981663][ T43] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 369.981822][ T43] RIP: 0033:0x7f57d84c87b7 [ 369.981954][ T43] RSP: 002b:00007ffd0990dea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 369.982146][ T43] RAX: ffffffffffffffda RBX: 00007ffd0990e5d0 RCX: 00007f57d84c87b7 [ 369.982336][ T43] RDX: 0000000000000000 RSI: 00007ffd0990df10 RDI: 0000000000000005 [ 369.982536][ T43] RBP: 0000000000000003 R08: 000000000000005c R09: 0000000000000002 [ 369.982729][ T43] R10: 00007f57d8381708 R11: 0000000000000246 R12: 00007ffd0990e5e8 [ 369.982920][ T43] R13: 00000000672a0752 R14: 0000000000496600 R15: 00007ffd0990dff8 [ 369.983115][ T43] [ 369.983213][ T43] INFO: lockdep is turned off. WAIT TIMEOUT stderr