[ 1291.890142][T17553] 
[ 1291.890270][T17553] =============================
[ 1291.890432][T17553] WARNING: suspicious RCU usage
[ 1291.890595][T17553] 6.12.0-virtme #1 Not tainted
[ 1291.890760][T17553] -----------------------------
[ 1291.890939][T17553] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1291.891237][T17553] 
[ 1291.891237][T17553] other info that might help us debug this:
[ 1291.891237][T17553] 
[ 1291.891542][T17553] 
[ 1291.891542][T17553] rcu_scheduler_active = 2, debug_locks = 1
[ 1291.891781][T17553] no locks held by smcrouted/17553.
[ 1291.891946][T17553] 
[ 1291.891946][T17553] stack backtrace:
[ 1291.892204][T17553] CPU: 3 UID: 0 PID: 17553 Comm: smcrouted Not tainted 6.12.0-virtme #1
[ 1291.892443][T17553] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1291.892636][T17553] Call Trace:
[ 1291.892765][T17553]  <TASK>
[ 1291.892849][T17553]  dump_stack_lvl+0xb0/0xd0
[ 1291.893014][T17553]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1291.893183][T17553]  ip6mr_get_table+0x142/0x190
[ 1291.893343][T17553]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1291.893503][T17553]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1291.893702][T17553]  ? __lock_release+0x103/0x460
[ 1291.893856][T17553]  ? __might_fault+0x11b/0x170
[ 1291.894029][T17553]  ? trace_lock_acquire+0x14d/0x1f0
[ 1291.894190][T17553]  ? __might_fault+0xc3/0x170
[ 1291.894346][T17553]  ? lock_acquire+0x32/0xc0
[ 1291.894499][T17553]  ? __might_fault+0xc3/0x170
[ 1291.894660][T17553]  ? __might_fault+0x11b/0x170
[ 1291.894823][T17553]  do_ipv6_setsockopt+0x705/0x34e0
[ 1291.894990][T17553]  ? validate_chain+0x130/0xae0
[ 1291.895148][T17553]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1291.895317][T17553]  ? __pfx_validate_chain+0x10/0x10
[ 1291.895476][T17553]  ? hlock_class+0x4e/0x130
[ 1291.895632][T17553]  ? mark_lock+0x38/0x3e0
[ 1291.895755][T17553]  ? __lock_acquire+0xb9a/0x1680
[ 1291.895923][T17553]  ? find_held_lock+0x2c/0x110
[ 1291.896084][T17553]  ? __lock_release+0x103/0x460
[ 1291.896243][T17553]  ? __create_object+0x5e/0xb0
[ 1291.896406][T17553]  ? __pfx___lock_release+0x10/0x10
[ 1291.896562][T17553]  ? __pfx_validate_chain+0x10/0x10
[ 1291.896722][T17553]  ? hlock_class+0x4e/0x130
[ 1291.896876][T17553]  ? mark_lock+0x38/0x3e0
[ 1291.896997][T17553]  ? ipv6_setsockopt+0x7f/0xe0
[ 1291.897152][T17553]  ipv6_setsockopt+0x7f/0xe0
[ 1291.897313][T17553]  rawv6_setsockopt+0xb7/0x550
[ 1291.897474][T17553]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1291.897648][T17553]  ? find_held_lock+0x2c/0x110
[ 1291.897808][T17553]  ? kfree+0x2d/0x340
[ 1291.897930][T17553]  ? __lock_release+0x103/0x460
[ 1291.898089][T17553]  ? fd_install+0x1d1/0x5a0
[ 1291.898253][T17553]  do_sock_setsockopt+0x149/0x3a0
[ 1291.898417][T17553]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1291.898589][T17553]  __sys_setsockopt+0xec/0x160
[ 1291.898752][T17553]  __x64_sys_setsockopt+0xbd/0x160
[ 1291.898910][T17553]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1291.899107][T17553]  do_syscall_64+0xc1/0x1d0
[ 1291.899271][T17553]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1291.899473][T17553] RIP: 0033:0x7f5cc25a091e
[ 1291.899641][T17553] 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
[ 1291.900188][T17553] RSP: 002b:00007fffcabc1078 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1291.900427][T17553] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5cc25a091e
[ 1291.900667][T17553] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1291.900899][T17553] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1291.901136][T17553] R10: 00007fffcabc109c R11: 0000000000000246 R12: 0000000000000000
[ 1291.901371][T17553] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f5cc26a5000
[ 1291.901620][T17553]  </TASK>
[ 1291.903717][T17553] veth0: entered allmulticast mode
[ 1291.904942][T17553] veth1: entered allmulticast mode
[ 1291.905276][T17553] veth2: entered allmulticast mode
[ 1291.905581][T17553] veth3: entered allmulticast mode
[ 1310.303532][T17553] veth0: left allmulticast mode
[ 1310.304018][T17553] veth1: left allmulticast mode
[ 1310.304437][T17553] veth2: left allmulticast mode
[ 1310.304835][T17553] veth3: left allmulticast mode