[ 1306.979942][ T9015] 
[ 1306.980167][ T9015] =============================
[ 1306.980328][ T9015] WARNING: suspicious RCU usage
[ 1306.980492][ T9015] 6.12.0-rc7-virtme #1 Not tainted
[ 1306.980666][ T9015] -----------------------------
[ 1306.980828][ T9015] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1306.981073][ T9015] 
[ 1306.981073][ T9015] other info that might help us debug this:
[ 1306.981073][ T9015] 
[ 1306.981397][ T9015] 
[ 1306.981397][ T9015] rcu_scheduler_active = 2, debug_locks = 1
[ 1306.981625][ T9015] no locks held by smcrouted/9015.
[ 1306.981788][ T9015] 
[ 1306.981788][ T9015] stack backtrace:
[ 1306.981985][ T9015] CPU: 3 UID: 0 PID: 9015 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1306.982271][ T9015] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1306.982479][ T9015] Call Trace:
[ 1306.982611][ T9015]  <TASK>
[ 1306.982707][ T9015]  dump_stack_lvl+0xb0/0xd0
[ 1306.982888][ T9015]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1306.983064][ T9015]  ip6mr_get_table+0x142/0x190
[ 1306.983250][ T9015]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1306.983417][ T9015]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1306.983624][ T9015]  ? __lock_release+0x103/0x460
[ 1306.983783][ T9015]  ? __might_fault+0x11b/0x170
[ 1306.983947][ T9015]  ? trace_lock_acquire+0x14d/0x1f0
[ 1306.984111][ T9015]  ? __might_fault+0xc3/0x170
[ 1306.984273][ T9015]  ? lock_acquire+0x32/0xc0
[ 1306.984430][ T9015]  ? __might_fault+0xc3/0x170
[ 1306.984595][ T9015]  ? __might_fault+0x11b/0x170
[ 1306.984763][ T9015]  do_ipv6_setsockopt+0x705/0x34e0
[ 1306.984934][ T9015]  ? __lock_release+0x10/0x460
[ 1306.985104][ T9015]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1306.985263][ T9015]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1306.985423][ T9015]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1306.985590][ T9015]  ? validate_chain+0x1fe/0xae0
[ 1306.985749][ T9015]  ? is_bpf_text_address+0x67/0x120
[ 1306.985925][ T9015]  ? __pfx_validate_chain+0x10/0x10
[ 1306.986089][ T9015]  ? hlock_class+0x4e/0x130
[ 1306.986256][ T9015]  ? mark_lock+0x38/0x3e0
[ 1306.986388][ T9015]  ? __lock_acquire+0xb3f/0x1580
[ 1306.986573][ T9015]  ? find_held_lock+0x2c/0x110
[ 1306.986758][ T9015]  ? ipv6_setsockopt+0x7f/0xe0
[ 1306.986932][ T9015]  ipv6_setsockopt+0x7f/0xe0
[ 1306.987097][ T9015]  rawv6_setsockopt+0xb7/0x550
[ 1306.987268][ T9015]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1306.987425][ T9015]  ? __lock_acquire+0xb3f/0x1580
[ 1306.987586][ T9015]  ? kfree+0x2d/0x340
[ 1306.987715][ T9015]  do_sock_setsockopt+0x149/0x3a0
[ 1306.987878][ T9015]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1306.988034][ T9015]  ? __lock_release+0x103/0x460
[ 1306.988200][ T9015]  ? fd_install+0x1d1/0x5a0
[ 1306.988373][ T9015]  ? trace_lock_acquire+0x14d/0x1f0
[ 1306.988535][ T9015]  ? fdget+0x52/0x1e0
[ 1306.988659][ T9015]  __sys_setsockopt+0x104/0x1a0
[ 1306.988817][ T9015]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1306.988974][ T9015]  ? __sys_socket+0x168/0x1e0
[ 1306.989147][ T9015]  ? __pfx___sys_socket+0x10/0x10
[ 1306.989303][ T9015]  ? do_user_addr_fault+0x374/0xe30
[ 1306.989464][ T9015]  __x64_sys_setsockopt+0xbd/0x160
[ 1306.989624][ T9015]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1306.989824][ T9015]  do_syscall_64+0xc1/0x1d0
[ 1306.989981][ T9015]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1306.990176][ T9015] RIP: 0033:0x7fc56896f91e
[ 1306.990347][ T9015] 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
[ 1306.990894][ T9015] RSP: 002b:00007ffcac0ab658 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1306.991134][ T9015] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc56896f91e
[ 1306.991367][ T9015] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1306.991602][ T9015] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1306.991838][ T9015] R10: 00007ffcac0ab67c R11: 0000000000000246 R12: 0000000000000000
[ 1306.992077][ T9015] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc568a74000
[ 1306.992325][ T9015]  </TASK>
[ 1306.996587][ T9015] veth0: entered allmulticast mode
[ 1306.997140][ T9015] veth1: entered allmulticast mode
[ 1306.997491][ T9015] veth2: entered allmulticast mode
[ 1306.997849][ T9015] veth3: entered allmulticast mode
[ 1326.616208][ T9015] veth0: left allmulticast mode
[ 1326.616577][ T9015] veth1: left allmulticast mode
[ 1326.616838][ T9015] veth2: left allmulticast mode
[ 1326.617142][ T9015] veth3: left allmulticast mode