[ 1286.504444][T16694] 
[ 1286.504629][T16694] =============================
[ 1286.504812][T16694] WARNING: suspicious RCU usage
[ 1286.504998][T16694] 6.12.0-rc6-virtme #1 Not tainted
[ 1286.505202][T16694] -----------------------------
[ 1286.505447][T16694] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1286.505715][T16694] 
[ 1286.505715][T16694] other info that might help us debug this:
[ 1286.505715][T16694] 
[ 1286.506060][T16694] 
[ 1286.506060][T16694] rcu_scheduler_active = 2, debug_locks = 1
[ 1286.506346][T16694] no locks held by smcrouted/16694.
[ 1286.506558][T16694] 
[ 1286.506558][T16694] stack backtrace:
[ 1286.507888][T16694] CPU: 2 UID: 0 PID: 16694 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1286.508335][T16694] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1286.508644][T16694] Call Trace:
[ 1286.508842][T16694]  <TASK>
[ 1286.508982][T16694]  dump_stack_lvl+0xb0/0xd0
[ 1286.509245][T16694]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1286.509504][T16694]  ip6mr_get_table+0x142/0x190
[ 1286.509673][T16694]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1286.509906][T16694]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1286.510124][T16694]  ? __lock_release+0x103/0x460
[ 1286.510347][T16694]  ? __might_fault+0x11b/0x170
[ 1286.510506][T16694]  ? trace_lock_acquire+0x14d/0x1f0
[ 1286.510681][T16694]  ? __might_fault+0xc3/0x170
[ 1286.510914][T16694]  ? lock_acquire+0x32/0xc0
[ 1286.511068][T16694]  ? __might_fault+0xc3/0x170
[ 1286.511230][T16694]  ? __might_fault+0x11b/0x170
[ 1286.511388][T16694]  do_ipv6_setsockopt+0x705/0x34e0
[ 1286.511547][T16694]  ? __lock_release+0xe0/0x460
[ 1286.511701][T16694]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1286.511864][T16694]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1286.512020][T16694]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1286.512175][T16694]  ? validate_chain+0x1fe/0xae0
[ 1286.512377][T16694]  ? is_bpf_text_address+0x67/0x120
[ 1286.512544][T16694]  ? __pfx_validate_chain+0x10/0x10
[ 1286.512695][T16694]  ? hlock_class+0x4e/0x130
[ 1286.512865][T16694]  ? mark_lock+0x38/0x3e0
[ 1286.513035][T16694]  ? __lock_acquire+0xb3f/0x1580
[ 1286.513199][T16694]  ? find_held_lock+0x2c/0x110
[ 1286.513402][T16694]  ? ipv6_setsockopt+0x7f/0xe0
[ 1286.513556][T16694]  ipv6_setsockopt+0x7f/0xe0
[ 1286.513715][T16694]  rawv6_setsockopt+0xb7/0x550
[ 1286.513914][T16694]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1286.514131][T16694]  ? __lock_acquire+0xb3f/0x1580
[ 1286.514291][T16694]  ? kfree+0x2d/0x340
[ 1286.514419][T16694]  do_sock_setsockopt+0x149/0x3a0
[ 1286.514573][T16694]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1286.514724][T16694]  ? __lock_release+0x103/0x460
[ 1286.514923][T16694]  ? fd_install+0x1d1/0x5a0
[ 1286.515137][T16694]  ? trace_lock_acquire+0x14d/0x1f0
[ 1286.515293][T16694]  ? fdget+0x52/0x1e0
[ 1286.515421][T16694]  __sys_setsockopt+0x104/0x1a0
[ 1286.515575][T16694]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1286.515729][T16694]  ? __sys_socket+0x168/0x1e0
[ 1286.515900][T16694]  ? __pfx___sys_socket+0x10/0x10
[ 1286.516054][T16694]  ? do_user_addr_fault+0x374/0xe30
[ 1286.516209][T16694]  __x64_sys_setsockopt+0xbd/0x160
[ 1286.516363][T16694]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1286.516605][T16694]  do_syscall_64+0xc1/0x1d0
[ 1286.516769][T16694]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1286.516972][T16694] RIP: 0033:0x7f76df50191e
[ 1286.517136][T16694] 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
[ 1286.517668][T16694] RSP: 002b:00007ffee9dc92a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1286.517942][T16694] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f76df50191e
[ 1286.518170][T16694] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1286.518397][T16694] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1286.518627][T16694] R10: 00007ffee9dc92cc R11: 0000000000000246 R12: 0000000000000000
[ 1286.518886][T16694] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f76df606000
[ 1286.519152][T16694]  </TASK>
[ 1286.525537][T16694] veth0: entered allmulticast mode
[ 1286.526188][T16694] veth1: entered allmulticast mode
[ 1286.526802][T16694] veth2: entered allmulticast mode
[ 1286.527272][T16694] veth3: entered allmulticast mode
[ 1304.739563][T16694] veth0: left allmulticast mode
[ 1304.739881][T16694] veth1: left allmulticast mode
[ 1304.740114][T16694] veth2: left allmulticast mode
[ 1304.740359][T16694] veth3: left allmulticast mode