[ 1309.040737][ T9188] 
[ 1309.040874][ T9188] =============================
[ 1309.041053][ T9188] WARNING: suspicious RCU usage
[ 1309.041225][ T9188] 6.12.0-rc7-virtme #1 Not tainted
[ 1309.041400][ T9188] -----------------------------
[ 1309.041592][ T9188] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1309.041857][ T9188] 
[ 1309.041857][ T9188] other info that might help us debug this:
[ 1309.041857][ T9188] 
[ 1309.042193][ T9188] 
[ 1309.042193][ T9188] rcu_scheduler_active = 2, debug_locks = 1
[ 1309.042443][ T9188] no locks held by smcrouted/9188.
[ 1309.043539][ T9188] 
[ 1309.043539][ T9188] stack backtrace:
[ 1309.043763][ T9188] CPU: 3 UID: 0 PID: 9188 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1309.044066][ T9188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1309.044290][ T9188] Call Trace:
[ 1309.044442][ T9188]  <TASK>
[ 1309.044545][ T9188]  dump_stack_lvl+0xb0/0xd0
[ 1309.044747][ T9188]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1309.044944][ T9188]  ip6mr_get_table+0x142/0x190
[ 1309.045141][ T9188]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1309.045342][ T9188]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1309.045591][ T9188]  ? __lock_release+0x103/0x460
[ 1309.045781][ T9188]  ? __might_fault+0x11b/0x170
[ 1309.045974][ T9188]  ? trace_lock_acquire+0x14d/0x1f0
[ 1309.046169][ T9188]  ? __might_fault+0xc3/0x170
[ 1309.046355][ T9188]  ? lock_acquire+0x32/0xc0
[ 1309.046544][ T9188]  ? __might_fault+0xc3/0x170
[ 1309.046738][ T9188]  ? __might_fault+0x11b/0x170
[ 1309.046936][ T9188]  do_ipv6_setsockopt+0x705/0x34e0
[ 1309.047128][ T9188]  ? __lock_release+0x40/0x460
[ 1309.047321][ T9188]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1309.047510][ T9188]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1309.047796][ T9188]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1309.047984][ T9188]  ? validate_chain+0x1fe/0xae0
[ 1309.048267][ T9188]  ? is_bpf_text_address+0x67/0x120
[ 1309.048563][ T9188]  ? __pfx_validate_chain+0x10/0x10
[ 1309.048825][ T9188]  ? hlock_class+0x4e/0x130
[ 1309.049002][ T9188]  ? mark_lock+0x38/0x3e0
[ 1309.049230][ T9188]  ? __lock_acquire+0xb3f/0x1580
[ 1309.049506][ T9188]  ? find_held_lock+0x2c/0x110
[ 1309.049780][ T9188]  ? ipv6_setsockopt+0x7f/0xe0
[ 1309.049952][ T9188]  ipv6_setsockopt+0x7f/0xe0
[ 1309.050224][ T9188]  rawv6_setsockopt+0xb7/0x550
[ 1309.050403][ T9188]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1309.050676][ T9188]  ? __lock_acquire+0xb3f/0x1580
[ 1309.050849][ T9188]  ? kfree+0x2d/0x340
[ 1309.050993][ T9188]  do_sock_setsockopt+0x149/0x3a0
[ 1309.051261][ T9188]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1309.051433][ T9188]  ? __lock_release+0x103/0x460
[ 1309.051719][ T9188]  ? fd_install+0x1d1/0x5a0
[ 1309.051900][ T9188]  ? trace_lock_acquire+0x14d/0x1f0
[ 1309.052071][ T9188]  ? fdget+0x52/0x1e0
[ 1309.052216][ T9188]  __sys_setsockopt+0x104/0x1a0
[ 1309.052494][ T9188]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1309.052771][ T9188]  ? __sys_socket+0x168/0x1e0
[ 1309.053046][ T9188]  ? __pfx___sys_socket+0x10/0x10
[ 1309.053233][ T9188]  ? do_user_addr_fault+0x374/0xe30
[ 1309.053509][ T9188]  __x64_sys_setsockopt+0xbd/0x160
[ 1309.053698][ T9188]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1309.054013][ T9188]  do_syscall_64+0xc1/0x1d0
[ 1309.054202][ T9188]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1309.054519][ T9188] RIP: 0033:0x7fd4d74e291e
[ 1309.054721][ T9188] 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
[ 1309.055482][ T9188] RSP: 002b:00007ffe3774be38 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1309.055774][ T9188] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd4d74e291e
[ 1309.056052][ T9188] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1309.056417][ T9188] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1309.056675][ T9188] R10: 00007ffe3774be5c R11: 0000000000000246 R12: 0000000000000000
[ 1309.056930][ T9188] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fd4d75e7000
[ 1309.057278][ T9188]  </TASK>
[ 1309.065638][ T9188] veth0: entered allmulticast mode
[ 1309.066192][ T9188] veth1: entered allmulticast mode
[ 1309.068926][ T9188] veth2: entered allmulticast mode
[ 1309.069300][ T9188] veth3: entered allmulticast mode
[ 1326.516810][ T9188] veth0: left allmulticast mode
[ 1326.517214][ T9188] veth1: left allmulticast mode
[ 1326.517484][ T9188] veth2: left allmulticast mode
[ 1326.517728][ T9188] veth3: left allmulticast mode