======================================
| [   33.170507][  T266] other info that might help us debug this:
| [   33.170707][  T266] no locks held by ip/266.
| [   33.170843][  T266]
| [   33.170843][  T266] stack backtrace:
[   33.171217][  T266] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   33.171529][  T266] Call Trace:
[   33.171645][  T266]  <TASK>
[ 33.171715][ T266] dump_stack_lvl (lib/dump_stack.c:123) 
[ 33.171855][ T266] ? __rtnl_unlock (net/core/rtnetlink.c:140 (discriminator 3)) 
[ 33.171991][ T266] print_unlock_imbalance_bug (kernel/locking/lockdep.c:5266) 
[ 33.172127][ T266] __lock_release (kernel/locking/lockdep.c:5502) 
[ 33.172261][ T266] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 33.172396][ T266] ? __rtnl_unlock (net/core/rtnetlink.c:140 (discriminator 3)) 
[ 33.172531][ T266] lock_release (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5848) 
[ 33.172665][ T266] __mutex_unlock_slowpath (./include/linux/instrumented.h:68 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:921) 
[ 33.172798][ T266] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[ 33.172932][ T266] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:907) 
[ 33.173101][ T266] ? rtnl_link_ops_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:558) 
[ 33.173257][ T266] __rtnl_unlock (net/core/rtnetlink.c:140 (discriminator 3)) 
[ 33.173397][ T266] rtnl_newlink (net/core/rtnetlink.c:3961) 
[ 33.173536][ T266] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3919) 
[ 33.173675][ T266] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 33.173818][ T266] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 33.173956][ T266] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6926) 
[ 33.174095][ T266] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 33.174235][ T266] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6926) 
[ 33.174383][ T266] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3919) 
[ 33.174515][ T266] rtnetlink_rcv_msg (net/core/rtnetlink.c:6928) 
[ 33.174652][ T266] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6831) 
[ 33.174785][ T266] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 33.174923][ T266] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 33.175025][ T266] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 33.175161][ T266] netlink_rcv_skb (net/netlink/af_netlink.c:2536) 
[ 33.175297][ T266] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6831) 
[ 33.175429][ T266] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2513) 
[ 33.175566][ T266] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 33.175699][ T266] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 33.175835][ T266] netlink_unicast (net/netlink/af_netlink.c:1316 net/netlink/af_netlink.c:1342) 
[ 33.175972][ T266] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1327) 
[ 33.176106][ T266] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 33.176244][ T266] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 33.176382][ T266] netlink_sendmsg (net/netlink/af_netlink.c:1886) 
[ 33.176543][ T266] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1805) 
[ 33.176685][ T266] ? _copy_from_user (./arch/x86/include/asm/smap.h:33 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 33.176830][ T266] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2609) 
[ 33.176973][ T266] ? __pfx_____sys_sendmsg (net/socket.c:2555) 
[ 33.177125][ T266] ? __pfx_copy_msghdr_from_user (net/socket.c:2535) 
[ 33.177303][ T266] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 33.177443][ T266] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 33.177584][ T266] ___sys_sendmsg (net/socket.c:2665) 
[ 33.177735][ T266] ? __pfx____sys_sendmsg (net/socket.c:2652) 
[ 33.177887][ T266] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 33.178030][ T266] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 33.178170][ T266] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 33.178314][ T266] ? __might_fault (mm/memory.c:6716 mm/memory.c:6709) 
[ 33.178468][ T266] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 33.178620][ T266] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 33.178759][ T266] ? __might_fault (mm/memory.c:6716 mm/memory.c:6709) 
[ 33.178900][ T266] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 33.179039][ T266] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 33.179148][ T266] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2694) 
[ 33.179287][ T266] ? __pfx___sys_sendmsg (net/socket.c:2680) 
[ 33.179426][ T266] ? rseq_update_cpu_node_id (kernel/rseq.c:109 (discriminator 10)) 
[ 33.179580][ T266] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:316) 
[ 33.179769][ T266] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.179909][ T266] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.180094][  T266] RIP: 0033:0x7f217acca7b7
[ 33.180238][ 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
All code
========
   0:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   33.180726][  T266] RSP: 002b:00007ffd31957c18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   33.180943][  T266] RAX: ffffffffffffffda RBX: 00007ffd31958340 RCX: 00007f217acca7b7
[   33.181154][  T266] RDX: 0000000000000000 RSI: 00007ffd31957c80 RDI: 0000000000000005
[   33.181429][  T266] RBP: 0000000000000005 R08: 000000000000006c R09: 00007ffd319569f0
[   33.181632][  T266] R10: 00007f217ab83708 R11: 0000000000000246 R12: 00007ffd31958368
[   33.181837][  T266] R13: 000000006729dd8d R14: 0000000000496600 R15: 00007ffd31957d70
| [   33.181154][  T266] RDX: 0000000000000000 RSI: 00007ffd31957c80 RDI: 0000000000000005
| [   33.181429][  T266] RBP: 0000000000000005 R08: 000000000000006c R09: 00007ffd319569f0
| [   33.181632][  T266] R10: 00007f217ab83708 R11: 0000000000000246 R12: 00007ffd31958368
| [   33.181837][  T266] R13: 000000006729dd8d R14: 0000000000496600 R15: 00007ffd31957d70
| [   33.182112][  T266]  </TASK>
[  247.069228][   T44] INFO: task ip:266 blocked for more than 122 seconds.
[  247.069719][   T44]       Not tainted 6.12.0-rc5-virtme #1
[  247.069867][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  247.070113][   T44] task:ip              state:D stack:25648 pid:266   tgid:266   ppid:245    flags:0x00004002
[  247.070377][   T44] Call Trace:
[  247.070486][   T44]  <TASK>
[ 247.070559][ T44] __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6690) 
[ 247.070699][ T44] ? __pfx___schedule (kernel/sched/core.c:6546) 
[ 247.070847][ T44] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 247.070986][ T44] ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 52)) 
[ 247.071138][ T44] schedule (./arch/x86/include/asm/preempt.h:84 kernel/sched/core.c:6768 kernel/sched/core.c:6782) 
[ 247.071246][ T44] schedule_preempt_disabled (./arch/x86/include/asm/preempt.h:79 kernel/sched/core.c:6840) 
[ 247.071398][ T44] __mutex_lock (kernel/locking/mutex.c:197 kernel/locking/mutex.c:686 kernel/locking/mutex.c:752) 
[ 247.071547][ T44] ? rtnl_newlink (net/core/rtnetlink.c:321 net/core/rtnetlink.c:4025) 
[ 247.071679][ T44] ? __pfx___mutex_lock (kernel/locking/mutex.c:751) 
[ 247.071813][ T44] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 247.071946][ T44] ? rtnl_newlink (net/core/rtnetlink.c:321 net/core/rtnetlink.c:4025) 
[ 247.072077][ T44] rtnl_newlink (net/core/rtnetlink.c:321 net/core/rtnetlink.c:4025) 
[ 247.072215][ T44] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3919) 
[ 247.072348][ T44] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 247.072477][ T44] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 247.072616][ T44] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6926) 
[ 247.072743][ T44] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3919) 
[ 247.072872][ T44] rtnetlink_rcv_msg (net/core/rtnetlink.c:6928) 
[ 247.073000][ T44] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6831) 
[ 247.073134][ T44] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 247.073262][ T44] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 247.073360][ T44] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 247.073489][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2536) 
[ 247.073629][ T44] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6831) 
[ 247.073755][ T44] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2513) 
[ 247.073887][ T44] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 247.074016][ T44] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 247.074152][ T44] netlink_unicast (net/netlink/af_netlink.c:1316 net/netlink/af_netlink.c:1342) 
[ 247.074283][ T44] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1327) 
[ 247.074409][ T44] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 247.074538][ T44] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 247.074670][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1886) 
[ 247.074801][ T44] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1805) 
[ 247.074931][ T44] ? _copy_from_user (./arch/x86/include/asm/smap.h:33 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18) 
[ 247.075062][ T44] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2609) 
[ 247.075226][ T44] ? __pfx_____sys_sendmsg (net/socket.c:2555) 
[ 247.075359][ T44] ? __pfx_copy_msghdr_from_user (net/socket.c:2535) 
[ 247.075528][ T44] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 247.075662][ T44] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 247.075798][ T44] ___sys_sendmsg (net/socket.c:2665) 
[ 247.075932][ T44] ? __pfx____sys_sendmsg (net/socket.c:2652) 
[ 247.076064][ T44] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 247.076202][ T44] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 247.076336][ T44] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 247.076474][ T44] ? __might_fault (mm/memory.c:6716 mm/memory.c:6709) 
[ 247.076607][ T44] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[ 247.076737][ T44] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[ 247.076867][ T44] ? __might_fault (mm/memory.c:6716 mm/memory.c:6709) 
[ 247.077002][ T44] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 247.077142][ T44] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 247.077261][ T44] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2694) 
[ 247.077412][ T44] ? __pfx___sys_sendmsg (net/socket.c:2680) 
[ 247.077548][ T44] ? rseq_update_cpu_node_id (kernel/rseq.c:109 (discriminator 10)) 
[ 247.077687][ T44] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:316) 
[ 247.077853][ T44] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 247.077995][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  247.078178][   T44] RIP: 0033:0x7f217acca7b7
[  247.078324][   T44] RSP: 002b:00007ffd31957c18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  247.078543][   T44] RAX: ffffffffffffffda RBX: 00007ffd31958340 RCX: 00007f217acca7b7
[  247.078733][   T44] RDX: 0000000000000000 RSI: 00007ffd31957c80 RDI: 0000000000000005
[  247.078928][   T44] RBP: 0000000000000005 R08: 000000000000006c R09: 00007ffd319569f0
[  247.079128][   T44] R10: 00007f217ab83708 R11: 0000000000000246 R12: 00007ffd31958368


Finger prints:
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:rtnl_newlink
print_unlock_imbalance_bug:__lock_release:lock_release:__mutex_unlock_slowpath:__rtnl_unlock