[ 1295.801011][ T7555] 
[ 1295.801164][ T7555] =============================
[ 1295.801361][ T7555] WARNING: suspicious RCU usage
[ 1295.801534][ T7555] 6.12.0-virtme #1 Not tainted
[ 1295.801712][ T7555] -----------------------------
[ 1295.801875][ T7555] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1295.802108][ T7555] 
[ 1295.802108][ T7555] other info that might help us debug this:
[ 1295.802108][ T7555] 
[ 1295.802424][ T7555] 
[ 1295.802424][ T7555] rcu_scheduler_active = 2, debug_locks = 1
[ 1295.802679][ T7555] no locks held by smcrouted/7555.
[ 1295.802842][ T7555] 
[ 1295.802842][ T7555] stack backtrace:
[ 1295.803045][ T7555] CPU: 3 UID: 0 PID: 7555 Comm: smcrouted Not tainted 6.12.0-virtme #1
[ 1295.803296][ T7555] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1295.803507][ T7555] Call Trace:
[ 1295.803640][ T7555]  <TASK>
[ 1295.803740][ T7555]  dump_stack_lvl+0xb0/0xd0
[ 1295.803919][ T7555]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1295.804088][ T7555]  ip6mr_get_table+0x142/0x190
[ 1295.804250][ T7555]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1295.804416][ T7555]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1295.804628][ T7555]  ? __lock_release+0x103/0x460
[ 1295.804789][ T7555]  ? __might_fault+0x11b/0x170
[ 1295.804956][ T7555]  ? trace_lock_acquire+0x14d/0x1f0
[ 1295.805126][ T7555]  ? __might_fault+0xc3/0x170
[ 1295.805291][ T7555]  ? lock_acquire+0x32/0xc0
[ 1295.805477][ T7555]  ? __might_fault+0xc3/0x170
[ 1295.805650][ T7555]  ? __might_fault+0x11b/0x170
[ 1295.805824][ T7555]  do_ipv6_setsockopt+0x705/0x34e0
[ 1295.805989][ T7555]  ? validate_chain+0x160/0xae0
[ 1295.806156][ T7555]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1295.806321][ T7555]  ? __pfx_validate_chain+0x10/0x10
[ 1295.806498][ T7555]  ? hlock_class+0x4e/0x130
[ 1295.806683][ T7555]  ? mark_lock+0x38/0x3e0
[ 1295.806817][ T7555]  ? __lock_acquire+0xb9a/0x1680
[ 1295.806993][ T7555]  ? find_held_lock+0x2c/0x110
[ 1295.807158][ T7555]  ? __lock_release+0x103/0x460
[ 1295.807327][ T7555]  ? __create_object+0x5e/0xb0
[ 1295.807518][ T7555]  ? __pfx___lock_release+0x10/0x10
[ 1295.807693][ T7555]  ? __pfx_validate_chain+0x10/0x10
[ 1295.807858][ T7555]  ? hlock_class+0x4e/0x130
[ 1295.808030][ T7555]  ? mark_lock+0x38/0x3e0
[ 1295.808162][ T7555]  ? ipv6_setsockopt+0x7f/0xe0
[ 1295.808325][ T7555]  ipv6_setsockopt+0x7f/0xe0
[ 1295.808501][ T7555]  rawv6_setsockopt+0xb7/0x550
[ 1295.808669][ T7555]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1295.808828][ T7555]  ? find_held_lock+0x2c/0x110
[ 1295.808998][ T7555]  ? kfree+0x2d/0x340
[ 1295.809121][ T7555]  ? __lock_release+0x103/0x460
[ 1295.809290][ T7555]  ? fd_install+0x1d1/0x5a0
[ 1295.809477][ T7555]  do_sock_setsockopt+0x149/0x3a0
[ 1295.809651][ T7555]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1295.809834][ T7555]  __sys_setsockopt+0xec/0x160
[ 1295.810009][ T7555]  __x64_sys_setsockopt+0xbd/0x160
[ 1295.810168][ T7555]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1295.810376][ T7555]  do_syscall_64+0xc1/0x1d0
[ 1295.810552][ T7555]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1295.810757][ T7555] RIP: 0033:0x7f264b3d591e
[ 1295.811013][ T7555] 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
[ 1295.811594][ T7555] RSP: 002b:00007ffc6869a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1295.811842][ T7555] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f264b3d591e
[ 1295.812083][ T7555] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1295.812332][ T7555] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1295.812575][ T7555] R10: 00007ffc6869a05c R11: 0000000000000246 R12: 0000000000000000
[ 1295.812816][ T7555] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f264b4da000
[ 1295.813066][ T7555]  </TASK>
[ 1295.816798][ T7555] veth0: entered allmulticast mode
[ 1295.817665][ T7555] veth1: entered allmulticast mode
[ 1295.818013][ T7555] veth2: entered allmulticast mode
[ 1295.818417][ T7555] veth3: entered allmulticast mode
[ 1314.896770][ T7555] veth0: left allmulticast mode
[ 1314.897084][ T7555] veth1: left allmulticast mode
[ 1314.897353][ T7555] veth2: left allmulticast mode
[ 1314.897597][ T7555] veth3: left allmulticast mode