[ 1339.419956][T10183] 
[ 1339.420097][T10183] =============================
[ 1339.420275][T10183] WARNING: suspicious RCU usage
[ 1339.420456][T10183] 6.12.0-rc7-virtme #1 Not tainted
[ 1339.420658][T10183] -----------------------------
[ 1339.420832][T10183] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1339.421099][T10183] 
[ 1339.421099][T10183] other info that might help us debug this:
[ 1339.421099][T10183] 
[ 1339.421438][T10183] 
[ 1339.421438][T10183] rcu_scheduler_active = 2, debug_locks = 1
[ 1339.421945][T10183] no locks held by smcrouted/10183.
[ 1339.422190][T10183] 
[ 1339.422190][T10183] stack backtrace:
[ 1339.422414][T10183] CPU: 0 UID: 0 PID: 10183 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1339.422711][T10183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1339.422951][T10183] Call Trace:
[ 1339.423087][T10183]  <TASK>
[ 1339.423180][T10183]  dump_stack_lvl+0xb0/0xd0
[ 1339.423364][T10183]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1339.423542][T10183]  ip6mr_get_table+0x142/0x190
[ 1339.423719][T10183]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1339.423892][T10183]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1339.424120][T10183]  ? __lock_release+0x103/0x460
[ 1339.424290][T10183]  ? __might_fault+0x11b/0x170
[ 1339.424470][T10183]  ? trace_lock_acquire+0x14d/0x1f0
[ 1339.424650][T10183]  ? __might_fault+0xc3/0x170
[ 1339.424817][T10183]  ? lock_acquire+0x32/0xc0
[ 1339.424988][T10183]  ? __might_fault+0xc3/0x170
[ 1339.425163][T10183]  ? __might_fault+0x11b/0x170
[ 1339.425344][T10183]  do_ipv6_setsockopt+0x705/0x34e0
[ 1339.425530][T10183]  ? __lock_release+0x10/0x460
[ 1339.425707][T10183]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1339.425885][T10183]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1339.426058][T10183]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1339.426230][T10183]  ? validate_chain+0x1fe/0xae0
[ 1339.426402][T10183]  ? is_bpf_text_address+0x67/0x120
[ 1339.426585][T10183]  ? __pfx_validate_chain+0x10/0x10
[ 1339.426754][T10183]  ? hlock_class+0x4e/0x130
[ 1339.426924][T10183]  ? mark_lock+0x38/0x3e0
[ 1339.427058][T10183]  ? __lock_acquire+0xb3f/0x1580
[ 1339.427237][T10183]  ? find_held_lock+0x2c/0x110
[ 1339.427423][T10183]  ? ipv6_setsockopt+0x7f/0xe0
[ 1339.427595][T10183]  ipv6_setsockopt+0x7f/0xe0
[ 1339.427772][T10183]  rawv6_setsockopt+0xb7/0x550
[ 1339.427953][T10183]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1339.428122][T10183]  ? __lock_acquire+0xb3f/0x1580
[ 1339.428293][T10183]  ? kfree+0x2d/0x340
[ 1339.428428][T10183]  do_sock_setsockopt+0x149/0x3a0
[ 1339.428599][T10183]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1339.428771][T10183]  ? __lock_release+0x103/0x460
[ 1339.428937][T10183]  ? fd_install+0x1d1/0x5a0
[ 1339.429113][T10183]  ? trace_lock_acquire+0x14d/0x1f0
[ 1339.429290][T10183]  ? fdget+0x52/0x1e0
[ 1339.429429][T10183]  __sys_setsockopt+0x104/0x1a0
[ 1339.429603][T10183]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1339.429771][T10183]  ? __sys_socket+0x168/0x1e0
[ 1339.429942][T10183]  ? __pfx___sys_socket+0x10/0x10
[ 1339.430120][T10183]  ? __local_bh_enable+0x80/0x90
[ 1339.430298][T10183]  __x64_sys_setsockopt+0xbd/0x160
[ 1339.430471][T10183]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1339.430684][T10183]  do_syscall_64+0xc1/0x1d0
[ 1339.430860][T10183]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1339.431071][T10183] RIP: 0033:0x7fc45fa9491e
[ 1339.431248][T10183] 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
[ 1339.431858][T10183] RSP: 002b:00007fff336fc898 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1339.432113][T10183] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc45fa9491e
[ 1339.432372][T10183] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1339.432622][T10183] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1339.432891][T10183] R10: 00007fff336fc8bc R11: 0000000000000246 R12: 0000000000000000
[ 1339.433152][T10183] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc45fb99000
[ 1339.433419][T10183]  </TASK>
[ 1339.437980][T10183] veth0: entered allmulticast mode
[ 1339.438526][T10183] veth1: entered allmulticast mode
[ 1339.439550][T10183] veth2: entered allmulticast mode
[ 1339.440076][T10183] veth3: entered allmulticast mode
[ 1357.242701][T10183] veth0: left allmulticast mode
[ 1357.243042][T10183] veth1: left allmulticast mode
[ 1357.243291][T10183] veth2: left allmulticast mode
[ 1357.243541][T10183] veth3: left allmulticast mode