[ 1298.487636][T15475] 
[ 1298.487827][T15475] =============================
[ 1298.488017][T15475] WARNING: suspicious RCU usage
[ 1298.488225][T15475] 6.12.0-rc6-virtme #1 Not tainted
[ 1298.488420][T15475] -----------------------------
[ 1298.488599][T15475] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1298.488854][T15475] 
[ 1298.488854][T15475] other info that might help us debug this:
[ 1298.488854][T15475] 
[ 1298.489274][T15475] 
[ 1298.489274][T15475] rcu_scheduler_active = 2, debug_locks = 1
[ 1298.489612][T15475] no locks held by smcrouted/15475.
[ 1298.489909][T15475] 
[ 1298.489909][T15475] stack backtrace:
[ 1298.490133][T15475] CPU: 2 UID: 0 PID: 15475 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1298.490434][T15475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1298.490639][T15475] Call Trace:
[ 1298.490774][T15475]  <TASK>
[ 1298.490865][T15475]  dump_stack_lvl+0xb0/0xd0
[ 1298.491038][T15475]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1298.491207][T15475]  ip6mr_get_table+0x142/0x190
[ 1298.491376][T15475]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1298.491539][T15475]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1298.491747][T15475]  ? __lock_release+0x103/0x460
[ 1298.491906][T15475]  ? __might_fault+0x11b/0x170
[ 1298.492066][T15475]  ? trace_lock_acquire+0x14d/0x1f0
[ 1298.492235][T15475]  ? __might_fault+0xc3/0x170
[ 1298.492393][T15475]  ? lock_acquire+0x32/0xc0
[ 1298.492551][T15475]  ? __might_fault+0xc3/0x170
[ 1298.492716][T15475]  ? __might_fault+0x11b/0x170
[ 1298.492884][T15475]  do_ipv6_setsockopt+0x705/0x34e0
[ 1298.493047][T15475]  ? __lock_release+0xe0/0x460
[ 1298.493207][T15475]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1298.493366][T15475]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1298.493530][T15475]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1298.493692][T15475]  ? validate_chain+0x1fe/0xae0
[ 1298.493854][T15475]  ? is_bpf_text_address+0x67/0x120
[ 1298.494026][T15475]  ? __pfx_validate_chain+0x10/0x10
[ 1298.494186][T15475]  ? hlock_class+0x4e/0x130
[ 1298.494347][T15475]  ? mark_lock+0x38/0x3e0
[ 1298.494473][T15475]  ? __lock_acquire+0xb3f/0x1580
[ 1298.494642][T15475]  ? find_held_lock+0x2c/0x110
[ 1298.494809][T15475]  ? ipv6_setsockopt+0x7f/0xe0
[ 1298.494972][T15475]  ipv6_setsockopt+0x7f/0xe0
[ 1298.495134][T15475]  rawv6_setsockopt+0xb7/0x550
[ 1298.495298][T15475]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1298.495462][T15475]  ? __lock_acquire+0xb3f/0x1580
[ 1298.495629][T15475]  ? kfree+0x2d/0x340
[ 1298.495761][T15475]  do_sock_setsockopt+0x149/0x3a0
[ 1298.495923][T15475]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1298.496082][T15475]  ? __lock_release+0x103/0x460
[ 1298.496242][T15475]  ? fd_install+0x1d1/0x5a0
[ 1298.496409][T15475]  ? trace_lock_acquire+0x14d/0x1f0
[ 1298.496573][T15475]  ? fdget+0x52/0x1e0
[ 1298.496705][T15475]  __sys_setsockopt+0x104/0x1a0
[ 1298.496868][T15475]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1298.497032][T15475]  ? __sys_socket+0x168/0x1e0
[ 1298.497191][T15475]  ? hrtimer_interrupt+0x31d/0x770
[ 1298.497352][T15475]  ? __pfx___sys_socket+0x10/0x10
[ 1298.497518][T15475]  __x64_sys_setsockopt+0xbd/0x160
[ 1298.497682][T15475]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1298.497881][T15475]  do_syscall_64+0xc1/0x1d0
[ 1298.498051][T15475]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1298.498250][T15475] RIP: 0033:0x7f26c8ed591e
[ 1298.498425][T15475] 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
[ 1298.498983][T15475] RSP: 002b:00007ffcb74214c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1298.499237][T15475] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f26c8ed591e
[ 1298.499477][T15475] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1298.499718][T15475] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1298.499974][T15475] R10: 00007ffcb74214ec R11: 0000000000000246 R12: 0000000000000000
[ 1298.500217][T15475] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f26c8fda000
[ 1298.500482][T15475]  </TASK>
[ 1298.504143][T15475] veth0: entered allmulticast mode
[ 1298.504758][T15475] veth1: entered allmulticast mode
[ 1298.505144][T15475] veth2: entered allmulticast mode
[ 1298.505512][T15475] veth3: entered allmulticast mode
[ 1317.390484][T15475] veth0: left allmulticast mode
[ 1317.390878][T15475] veth1: left allmulticast mode
[ 1317.391195][T15475] veth2: left allmulticast mode
[ 1317.391509][T15475] veth3: left allmulticast mode