[ 1289.464725][T16457] 
[ 1289.464952][T16457] =============================
[ 1289.465222][T16457] WARNING: suspicious RCU usage
[ 1289.465505][T16457] 6.12.0-rc6-virtme #1 Not tainted
[ 1289.465782][T16457] -----------------------------
[ 1289.466035][T16457] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1289.466416][T16457] 
[ 1289.466416][T16457] other info that might help us debug this:
[ 1289.466416][T16457] 
[ 1289.466933][T16457] 
[ 1289.466933][T16457] rcu_scheduler_active = 2, debug_locks = 1
[ 1289.467305][T16457] no locks held by smcrouted/16457.
[ 1289.467606][T16457] 
[ 1289.467606][T16457] stack backtrace:
[ 1289.467803][T16457] CPU: 1 UID: 0 PID: 16457 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1289.468114][T16457] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1289.468351][T16457] Call Trace:
[ 1289.468476][T16457]  <TASK>
[ 1289.468562][T16457]  dump_stack_lvl+0xb0/0xd0
[ 1289.468729][T16457]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1289.468894][T16457]  ip6mr_get_table+0x142/0x190
[ 1289.469115][T16457]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1289.469335][T16457]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1289.469567][T16457]  ? __lock_release+0x103/0x460
[ 1289.469747][T16457]  ? __might_fault+0x11b/0x170
[ 1289.469975][T16457]  ? trace_lock_acquire+0x14d/0x1f0
[ 1289.470157][T16457]  ? __might_fault+0xc3/0x170
[ 1289.470402][T16457]  ? lock_acquire+0x32/0xc0
[ 1289.470559][T16457]  ? __might_fault+0xc3/0x170
[ 1289.470720][T16457]  ? __might_fault+0x11b/0x170
[ 1289.470891][T16457]  do_ipv6_setsockopt+0x705/0x34e0
[ 1289.471052][T16457]  ? __lock_release+0xe0/0x460
[ 1289.471212][T16457]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1289.471380][T16457]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1289.471541][T16457]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1289.471696][T16457]  ? validate_chain+0x1fe/0xae0
[ 1289.471858][T16457]  ? is_bpf_text_address+0x67/0x120
[ 1289.472029][T16457]  ? __pfx_validate_chain+0x10/0x10
[ 1289.472205][T16457]  ? hlock_class+0x4e/0x130
[ 1289.472375][T16457]  ? mark_lock+0x38/0x3e0
[ 1289.472504][T16457]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1289.472730][T16457]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1289.472886][T16457]  ? validate_chain+0x1fe/0xae0
[ 1289.473046][T16457]  ? __pfx_validate_chain+0x10/0x10
[ 1289.473204][T16457]  ? hlock_class+0x4e/0x130
[ 1289.473398][T16457]  ? ipv6_setsockopt+0x7f/0xe0
[ 1289.473562][T16457]  ipv6_setsockopt+0x7f/0xe0
[ 1289.473722][T16457]  rawv6_setsockopt+0xb7/0x550
[ 1289.473948][T16457]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1289.474146][T16457]  ? kfree+0x2d/0x340
[ 1289.474339][T16457]  do_sock_setsockopt+0x149/0x3a0
[ 1289.474536][T16457]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1289.474693][T16457]  ? __pfx___lock_release+0x10/0x10
[ 1289.474851][T16457]  ? __might_fault+0xc3/0x170
[ 1289.475020][T16457]  ? __might_fault+0xc3/0x170
[ 1289.475246][T16457]  ? lock_acquire+0x32/0xc0
[ 1289.475410][T16457]  ? fdget+0x52/0x1e0
[ 1289.475534][T16457]  __sys_setsockopt+0x104/0x1a0
[ 1289.475697][T16457]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1289.475917][T16457]  ? __pfx___sys_socket+0x10/0x10
[ 1289.476171][T16457]  __x64_sys_setsockopt+0xbd/0x160
[ 1289.476356][T16457]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1289.476635][T16457]  do_syscall_64+0xc1/0x1d0
[ 1289.476813][T16457]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1289.477022][T16457] RIP: 0033:0x7fe5fc54191e
[ 1289.477293][T16457] Code: 0f 1f 40 00 48 8b 15 e1 94 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b1 0f 1f 00 f3 0f 1e fa 49 89 ca b8 36 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 0a c3 66 0f 1f 84 00 00 00 00 00 48 8b 15 a9
[ 1289.477952][T16457] RSP: 002b:00007ffc19a4c268 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1289.478235][T16457] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe5fc54191e
[ 1289.478533][T16457] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1289.478792][T16457] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1289.479107][T16457] R10: 00007ffc19a4c28c R11: 0000000000000246 R12: 0000000000000000
[ 1289.479414][T16457] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fe5fc646000
[ 1289.479713][T16457]  </TASK>
[ 1289.483175][T16457] veth0: entered allmulticast mode
[ 1289.483789][T16457] veth1: entered allmulticast mode
[ 1289.484121][T16457] veth2: entered allmulticast mode
[ 1289.484438][T16457] veth3: entered allmulticast mode
[ 1308.269823][T16457] veth0: left allmulticast mode
[ 1308.270213][T16457] veth1: left allmulticast mode
[ 1308.270530][T16457] veth2: left allmulticast mode
[ 1308.270811][T16457] veth3: left allmulticast mode