[ 1294.241377][T15169] 
[ 1294.241593][T15169] =============================
[ 1294.241861][T15169] WARNING: suspicious RCU usage
[ 1294.242139][T15169] 6.12.0-rc7-virtme #1 Not tainted
[ 1294.243622][T15169] -----------------------------
[ 1294.243898][T15169] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1294.244303][T15169] 
[ 1294.244303][T15169] other info that might help us debug this:
[ 1294.244303][T15169] 
[ 1294.244820][T15169] 
[ 1294.244820][T15169] rcu_scheduler_active = 2, debug_locks = 1
[ 1294.245191][T15169] no locks held by smcrouted/15169.
[ 1294.245443][T15169] 
[ 1294.245443][T15169] stack backtrace:
[ 1294.245662][T15169] CPU: 0 UID: 0 PID: 15169 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1294.245965][T15169] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1294.246220][T15169] Call Trace:
[ 1294.246405][T15169]  <TASK>
[ 1294.246504][T15169]  dump_stack_lvl+0xb0/0xd0
[ 1294.246691][T15169]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1294.246875][T15169]  ip6mr_get_table+0x142/0x190
[ 1294.247054][T15169]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1294.247252][T15169]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1294.247478][T15169]  ? __lock_release+0x103/0x460
[ 1294.247651][T15169]  ? __might_fault+0x11b/0x170
[ 1294.247827][T15169]  ? trace_lock_acquire+0x14d/0x1f0
[ 1294.248011][T15169]  ? __might_fault+0xc3/0x170
[ 1294.248195][T15169]  ? lock_acquire+0x32/0xc0
[ 1294.248367][T15169]  ? __might_fault+0xc3/0x170
[ 1294.248539][T15169]  ? __might_fault+0x11b/0x170
[ 1294.248716][T15169]  do_ipv6_setsockopt+0x705/0x34e0
[ 1294.248893][T15169]  ? __lock_release+0x10/0x460
[ 1294.249070][T15169]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1294.249250][T15169]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1294.249429][T15169]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1294.249601][T15169]  ? validate_chain+0x1fe/0xae0
[ 1294.249776][T15169]  ? is_bpf_text_address+0x67/0x120
[ 1294.249960][T15169]  ? __pfx_validate_chain+0x10/0x10
[ 1294.250138][T15169]  ? hlock_class+0x4e/0x130
[ 1294.250311][T15169]  ? mark_lock+0x38/0x3e0
[ 1294.250445][T15169]  ? __lock_acquire+0xb3f/0x1580
[ 1294.250625][T15169]  ? find_held_lock+0x2c/0x110
[ 1294.250801][T15169]  ? ipv6_setsockopt+0x7f/0xe0
[ 1294.250971][T15169]  ipv6_setsockopt+0x7f/0xe0
[ 1294.251160][T15169]  rawv6_setsockopt+0xb7/0x550
[ 1294.251333][T15169]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1294.251503][T15169]  ? __lock_acquire+0xb3f/0x1580
[ 1294.251673][T15169]  ? kfree+0x2d/0x340
[ 1294.251808][T15169]  do_sock_setsockopt+0x149/0x3a0
[ 1294.251980][T15169]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1294.252176][T15169]  ? __lock_release+0x103/0x460
[ 1294.252345][T15169]  ? fd_install+0x1d1/0x5a0
[ 1294.252525][T15169]  ? trace_lock_acquire+0x14d/0x1f0
[ 1294.252697][T15169]  ? fdget+0x52/0x1e0
[ 1294.252835][T15169]  __sys_setsockopt+0x104/0x1a0
[ 1294.253010][T15169]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1294.253180][T15169]  ? __sys_socket+0x168/0x1e0
[ 1294.253351][T15169]  ? __pfx___sys_socket+0x10/0x10
[ 1294.253525][T15169]  ? do_user_addr_fault+0x374/0xe30
[ 1294.253702][T15169]  __x64_sys_setsockopt+0xbd/0x160
[ 1294.253877][T15169]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1294.254091][T15169]  do_syscall_64+0xc1/0x1d0
[ 1294.254270][T15169]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1294.254491][T15169] RIP: 0033:0x7fc9eb84d91e
[ 1294.254675][T15169] 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
[ 1294.255282][T15169] RSP: 002b:00007ffd7926ff68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1294.255540][T15169] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc9eb84d91e
[ 1294.255810][T15169] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1294.256063][T15169] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1294.256314][T15169] R10: 00007ffd7926ff8c R11: 0000000000000246 R12: 0000000000000000
[ 1294.256574][T15169] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc9eb952000
[ 1294.256845][T15169]  </TASK>
[ 1294.260346][T15169] veth0: entered allmulticast mode
[ 1294.261000][T15169] veth1: entered allmulticast mode
[ 1294.261416][T15169] veth2: entered allmulticast mode
[ 1294.261744][T15169] veth3: entered allmulticast mode
[ 1313.556168][T15169] veth0: left allmulticast mode
[ 1313.556597][T15169] veth1: left allmulticast mode
[ 1313.556866][T15169] veth2: left allmulticast mode
[ 1313.557114][T15169] veth3: left allmulticast mode