[ 1918.743472][T13123] 
[ 1918.743594][T13123] =============================
[ 1918.743753][T13123] WARNING: suspicious RCU usage
[ 1918.743950][T13123] 6.12.0-rc6-virtme #1 Not tainted
[ 1918.744104][T13123] -----------------------------
[ 1918.744255][T13123] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1918.745299][T13123] 
[ 1918.745299][T13123] other info that might help us debug this:
[ 1918.745299][T13123] 
[ 1918.745705][T13123] 
[ 1918.745705][T13123] rcu_scheduler_active = 2, debug_locks = 1
[ 1918.745941][T13123] no locks held by smcrouted/13123.
[ 1918.746094][T13123] 
[ 1918.746094][T13123] stack backtrace:
[ 1918.746286][T13123] CPU: 1 UID: 0 PID: 13123 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1918.746565][T13123] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1918.746938][T13123] Call Trace:
[ 1918.747058][T13123]  <TASK>
[ 1918.747149][T13123]  dump_stack_lvl+0xb0/0xd0
[ 1918.747331][T13123]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1918.747488][T13123]  ip6mr_get_table+0x142/0x190
[ 1918.747645][T13123]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1918.747823][T13123]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1918.748017][T13123]  ? __lock_release+0x103/0x460
[ 1918.748166][T13123]  ? __might_fault+0x11b/0x170
[ 1918.748331][T13123]  ? trace_lock_acquire+0x14d/0x1f0
[ 1918.748484][T13123]  ? __might_fault+0xc3/0x170
[ 1918.748635][T13123]  ? lock_acquire+0x32/0xc0
[ 1918.748793][T13123]  ? __might_fault+0xc3/0x170
[ 1918.748950][T13123]  ? __might_fault+0x11b/0x170
[ 1918.749114][T13123]  do_ipv6_setsockopt+0x705/0x34e0
[ 1918.749272][T13123]  ? __lock_release+0xe0/0x460
[ 1918.749426][T13123]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1918.749582][T13123]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1918.749739][T13123]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1918.749892][T13123]  ? validate_chain+0x1fe/0xae0
[ 1918.750048][T13123]  ? is_bpf_text_address+0x67/0x120
[ 1918.750220][T13123]  ? __pfx_validate_chain+0x10/0x10
[ 1918.750371][T13123]  ? hlock_class+0x4e/0x130
[ 1918.750522][T13123]  ? mark_lock+0x38/0x3e0
[ 1918.750642][T13123]  ? __lock_acquire+0xb3f/0x1580
[ 1918.750802][T13123]  ? find_held_lock+0x2c/0x110
[ 1918.750966][T13123]  ? ipv6_setsockopt+0x7f/0xe0
[ 1918.751113][T13123]  ipv6_setsockopt+0x7f/0xe0
[ 1918.751266][T13123]  rawv6_setsockopt+0xb7/0x550
[ 1918.751429][T13123]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1918.751594][T13123]  ? __lock_acquire+0xb3f/0x1580
[ 1918.751776][T13123]  ? kfree+0x2d/0x340
[ 1918.751899][T13123]  do_sock_setsockopt+0x149/0x3a0
[ 1918.752101][T13123]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1918.752256][T13123]  ? __lock_release+0x103/0x460
[ 1918.752417][T13123]  ? fd_install+0x1d1/0x5a0
[ 1918.752584][T13123]  ? trace_lock_acquire+0x14d/0x1f0
[ 1918.752735][T13123]  ? fdget+0x52/0x1e0
[ 1918.752874][T13123]  __sys_setsockopt+0x104/0x1a0
[ 1918.753030][T13123]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1918.753219][T13123]  ? __sys_socket+0x168/0x1e0
[ 1918.753371][T13123]  ? __pfx___sys_socket+0x10/0x10
[ 1918.753530][T13123]  __x64_sys_setsockopt+0xbd/0x160
[ 1918.753689][T13123]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1918.753888][T13123]  do_syscall_64+0xc1/0x1d0
[ 1918.754050][T13123]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1918.754261][T13123] RIP: 0033:0x7f3426ce791e
[ 1918.754428][T13123] 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
[ 1918.755006][T13123] RSP: 002b:00007ffea3b5d7f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1918.755455][T13123] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3426ce791e
[ 1918.755715][T13123] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1918.755942][T13123] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1918.756298][T13123] R10: 00007ffea3b5d81c R11: 0000000000000246 R12: 0000000000000000
[ 1918.756522][T13123] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f3426dec000
[ 1918.756784][T13123]  </TASK>
[ 1918.771283][T13123] veth0: entered allmulticast mode
[ 1918.772463][T13123] veth1: entered allmulticast mode
[ 1918.772786][T13123] veth2: entered allmulticast mode
[ 1918.773097][T13123] veth3: entered allmulticast mode
[ 1918.774636][T13123] veth4: entered allmulticast mode
[ 1918.774982][T13123] veth5: entered allmulticast mode
[ 1965.766658][T13123] veth0: left allmulticast mode
[ 1965.766979][T13123] veth1: left allmulticast mode
[ 1965.767241][T13123] veth2: left allmulticast mode
[ 1965.767519][T13123] veth3: left allmulticast mode
[ 1965.767775][T13123] veth4: left allmulticast mode
[ 1965.768051][T13123] veth5: left allmulticast mode