[ 1918.953014][T13998] 
[ 1918.953177][T13998] =============================
[ 1918.953434][T13998] WARNING: suspicious RCU usage
[ 1918.953728][T13998] 6.12.0-rc6-virtme #1 Not tainted
[ 1918.954211][T13998] -----------------------------
[ 1918.954426][T13998] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1918.954841][T13998] 
[ 1918.954841][T13998] other info that might help us debug this:
[ 1918.954841][T13998] 
[ 1918.955373][T13998] 
[ 1918.955373][T13998] rcu_scheduler_active = 2, debug_locks = 1
[ 1918.955805][T13998] no locks held by smcrouted/13998.
[ 1918.956079][T13998] 
[ 1918.956079][T13998] stack backtrace:
[ 1918.956448][T13998] CPU: 2 UID: 0 PID: 13998 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1918.956908][T13998] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1918.957489][T13998] Call Trace:
[ 1918.957697][T13998]  <TASK>
[ 1918.957847][T13998]  dump_stack_lvl+0xb0/0xd0
[ 1918.958131][T13998]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1918.958402][T13998]  ip6mr_get_table+0x142/0x190
[ 1918.958672][T13998]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1918.958938][T13998]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1918.959278][T13998]  ? __lock_release+0x103/0x460
[ 1918.959541][T13998]  ? __might_fault+0x11b/0x170
[ 1918.959807][T13998]  ? trace_lock_acquire+0x14d/0x1f0
[ 1918.960084][T13998]  ? __might_fault+0xc3/0x170
[ 1918.960315][T13998]  ? lock_acquire+0x32/0xc0
[ 1918.960649][T13998]  ? __might_fault+0xc3/0x170
[ 1918.960892][T13998]  ? __might_fault+0x11b/0x170
[ 1918.961148][T13998]  do_ipv6_setsockopt+0x705/0x34e0
[ 1918.961401][T13998]  ? __lock_release+0xe0/0x460
[ 1918.961649][T13998]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1918.961891][T13998]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1918.962144][T13998]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1918.962428][T13998]  ? validate_chain+0x1fe/0xae0
[ 1918.962691][T13998]  ? is_bpf_text_address+0x67/0x120
[ 1918.962953][T13998]  ? __pfx_validate_chain+0x10/0x10
[ 1918.963196][T13998]  ? hlock_class+0x4e/0x130
[ 1918.963446][T13998]  ? mark_lock+0x38/0x3e0
[ 1918.963642][T13998]  ? __lock_acquire+0xb3f/0x1580
[ 1918.963904][T13998]  ? find_held_lock+0x2c/0x110
[ 1918.964166][T13998]  ? ipv6_setsockopt+0x7f/0xe0
[ 1918.964407][T13998]  ipv6_setsockopt+0x7f/0xe0
[ 1918.964844][T13998]  rawv6_setsockopt+0xb7/0x550
[ 1918.965069][T13998]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1918.965313][T13998]  ? __lock_acquire+0xb3f/0x1580
[ 1918.965568][T13998]  ? kfree+0x2d/0x340
[ 1918.965888][T13998]  do_sock_setsockopt+0x149/0x3a0
[ 1918.966080][T13998]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1918.966312][T13998]  ? __lock_release+0x103/0x460
[ 1918.966554][T13998]  ? fd_install+0x1d1/0x5a0
[ 1918.966808][T13998]  ? trace_lock_acquire+0x14d/0x1f0
[ 1918.967066][T13998]  ? fdget+0x52/0x1e0
[ 1918.967262][T13998]  __sys_setsockopt+0x104/0x1a0
[ 1918.967513][T13998]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1918.967759][T13998]  ? __sys_socket+0x168/0x1e0
[ 1918.968006][T13998]  ? __pfx___sys_socket+0x10/0x10
[ 1918.968265][T13998]  __x64_sys_setsockopt+0xbd/0x160
[ 1918.968509][T13998]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1918.968818][T13998]  do_syscall_64+0xc1/0x1d0
[ 1918.969304][T13998]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1918.969576][T13998] RIP: 0033:0x7fdb503f891e
[ 1918.969836][T13998] 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
[ 1918.970796][T13998] RSP: 002b:00007ffc4e600ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1918.971179][T13998] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdb503f891e
[ 1918.971691][T13998] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1918.972056][T13998] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1918.972425][T13998] R10: 00007ffc4e600afc R11: 0000000000000246 R12: 0000000000000000
[ 1918.972962][T13998] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fdb504fd000
[ 1918.973359][T13998]  </TASK>
[ 1918.979406][T13998] veth0: entered allmulticast mode
[ 1918.980018][T13998] veth1: entered allmulticast mode
[ 1918.980400][T13998] veth2: entered allmulticast mode
[ 1918.980818][T13998] veth3: entered allmulticast mode
[ 1948.954833][T13998] veth0: left allmulticast mode
[ 1948.955148][T13998] veth1: left allmulticast mode
[ 1948.961681][T13998] veth2: left allmulticast mode
[ 1948.962444][T13998] veth3: left allmulticast mode