[ 1297.473942][ T9384] 
[ 1297.474119][ T9384] =============================
[ 1297.474307][ T9384] WARNING: suspicious RCU usage
[ 1297.474510][ T9384] 6.12.0-rc7-virtme #1 Not tainted
[ 1297.474741][ T9384] -----------------------------
[ 1297.474938][ T9384] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1297.475204][ T9384] 
[ 1297.475204][ T9384] other info that might help us debug this:
[ 1297.475204][ T9384] 
[ 1297.475555][ T9384] 
[ 1297.475555][ T9384] rcu_scheduler_active = 2, debug_locks = 1
[ 1297.475810][ T9384] no locks held by smcrouted/9384.
[ 1297.475997][ T9384] 
[ 1297.475997][ T9384] stack backtrace:
[ 1297.476221][ T9384] CPU: 2 UID: 0 PID: 9384 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1297.476516][ T9384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1297.476735][ T9384] Call Trace:
[ 1297.476862][ T9384]  <TASK>
[ 1297.476950][ T9384]  dump_stack_lvl+0xb0/0xd0
[ 1297.477147][ T9384]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1297.477322][ T9384]  ip6mr_get_table+0x142/0x190
[ 1297.477496][ T9384]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1297.477659][ T9384]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1297.477873][ T9384]  ? __lock_release+0x103/0x460
[ 1297.478037][ T9384]  ? __might_fault+0x11b/0x170
[ 1297.478246][ T9384]  ? trace_lock_acquire+0x14d/0x1f0
[ 1297.478465][ T9384]  ? __might_fault+0xc3/0x170
[ 1297.478644][ T9384]  ? lock_acquire+0x32/0xc0
[ 1297.478819][ T9384]  ? __might_fault+0xc3/0x170
[ 1297.478992][ T9384]  ? __might_fault+0x11b/0x170
[ 1297.479169][ T9384]  do_ipv6_setsockopt+0x705/0x34e0
[ 1297.479349][ T9384]  ? __lock_release+0x10/0x460
[ 1297.479539][ T9384]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1297.479712][ T9384]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1297.479887][ T9384]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1297.480063][ T9384]  ? validate_chain+0x1fe/0xae0
[ 1297.480243][ T9384]  ? is_bpf_text_address+0x67/0x120
[ 1297.480435][ T9384]  ? __pfx_validate_chain+0x10/0x10
[ 1297.480604][ T9384]  ? hlock_class+0x4e/0x130
[ 1297.480781][ T9384]  ? mark_lock+0x38/0x3e0
[ 1297.480929][ T9384]  ? __lock_acquire+0xb3f/0x1580
[ 1297.481124][ T9384]  ? find_held_lock+0x2c/0x110
[ 1297.481308][ T9384]  ? ipv6_setsockopt+0x7f/0xe0
[ 1297.481495][ T9384]  ipv6_setsockopt+0x7f/0xe0
[ 1297.481668][ T9384]  rawv6_setsockopt+0xb7/0x550
[ 1297.481851][ T9384]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1297.482022][ T9384]  ? __lock_acquire+0xb3f/0x1580
[ 1297.482198][ T9384]  ? kfree+0x2d/0x340
[ 1297.482341][ T9384]  do_sock_setsockopt+0x149/0x3a0
[ 1297.482541][ T9384]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1297.482713][ T9384]  ? __lock_release+0x103/0x460
[ 1297.482886][ T9384]  ? fd_install+0x1d1/0x5a0
[ 1297.483068][ T9384]  ? trace_lock_acquire+0x14d/0x1f0
[ 1297.483247][ T9384]  ? fdget+0x52/0x1e0
[ 1297.483400][ T9384]  __sys_setsockopt+0x104/0x1a0
[ 1297.483578][ T9384]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1297.483762][ T9384]  ? __sys_socket+0x168/0x1e0
[ 1297.483936][ T9384]  ? __pfx___sys_socket+0x10/0x10
[ 1297.484112][ T9384]  ? do_user_addr_fault+0x374/0xe30
[ 1297.484298][ T9384]  __x64_sys_setsockopt+0xbd/0x160
[ 1297.484480][ T9384]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1297.484695][ T9384]  do_syscall_64+0xc1/0x1d0
[ 1297.484883][ T9384]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1297.485099][ T9384] RIP: 0033:0x7f44518bd91e
[ 1297.485283][ T9384] 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
[ 1297.485889][ T9384] RSP: 002b:00007ffebf095f38 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1297.486157][ T9384] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f44518bd91e
[ 1297.486431][ T9384] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1297.486692][ T9384] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1297.486951][ T9384] R10: 00007ffebf095f5c R11: 0000000000000246 R12: 0000000000000000
[ 1297.487209][ T9384] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f44519c2000
[ 1297.487490][ T9384]  </TASK>
[ 1297.490807][ T9384] veth0: entered allmulticast mode
[ 1297.491561][ T9384] veth1: entered allmulticast mode
[ 1297.492104][ T9384] veth2: entered allmulticast mode
[ 1297.492466][ T9384] veth3: entered allmulticast mode
[ 1316.495303][ T9384] veth0: left allmulticast mode
[ 1316.495938][ T9384] veth1: left allmulticast mode
[ 1316.496404][ T9384] veth2: left allmulticast mode
[ 1316.496857][ T9384] veth3: left allmulticast mode