[ 1921.771766][T11241] 
[ 1921.771913][T11241] =============================
[ 1921.772072][T11241] WARNING: suspicious RCU usage
[ 1921.772267][T11241] 6.12.0-rc6-virtme #1 Not tainted
[ 1921.772428][T11241] -----------------------------
[ 1921.772583][T11241] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1921.772833][T11241] 
[ 1921.772833][T11241] other info that might help us debug this:
[ 1921.772833][T11241] 
[ 1921.773131][T11241] 
[ 1921.773131][T11241] rcu_scheduler_active = 2, debug_locks = 1
[ 1921.774162][T11241] no locks held by smcrouted/11241.
[ 1921.774412][T11241] 
[ 1921.774412][T11241] stack backtrace:
[ 1921.774602][T11241] CPU: 2 UID: 0 PID: 11241 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1921.774870][T11241] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1921.775213][T11241] Call Trace:
[ 1921.775339][T11241]  <TASK>
[ 1921.775419][T11241]  dump_stack_lvl+0xb0/0xd0
[ 1921.775593][T11241]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1921.775749][T11241]  ip6mr_get_table+0x142/0x190
[ 1921.775907][T11241]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1921.776059][T11241]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1921.776254][T11241]  ? __lock_release+0x103/0x460
[ 1921.776401][T11241]  ? __might_fault+0x11b/0x170
[ 1921.776557][T11241]  ? trace_lock_acquire+0x14d/0x1f0
[ 1921.776718][T11241]  ? __might_fault+0xc3/0x170
[ 1921.776865][T11241]  ? lock_acquire+0x32/0xc0
[ 1921.777015][T11241]  ? __might_fault+0xc3/0x170
[ 1921.777164][T11241]  ? __might_fault+0x11b/0x170
[ 1921.777321][T11241]  do_ipv6_setsockopt+0x705/0x34e0
[ 1921.777474][T11241]  ? __lock_release+0xe0/0x460
[ 1921.777626][T11241]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1921.777791][T11241]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1921.777944][T11241]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1921.778096][T11241]  ? validate_chain+0x1fe/0xae0
[ 1921.778245][T11241]  ? is_bpf_text_address+0x67/0x120
[ 1921.778404][T11241]  ? __pfx_validate_chain+0x10/0x10
[ 1921.778557][T11241]  ? hlock_class+0x4e/0x130
[ 1921.778707][T11241]  ? mark_lock+0x38/0x3e0
[ 1921.778829][T11241]  ? __lock_acquire+0xb3f/0x1580
[ 1921.778993][T11241]  ? find_held_lock+0x2c/0x110
[ 1921.779164][T11241]  ? ipv6_setsockopt+0x7f/0xe0
[ 1921.779316][T11241]  ipv6_setsockopt+0x7f/0xe0
[ 1921.779470][T11241]  rawv6_setsockopt+0xb7/0x550
[ 1921.779629][T11241]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1921.779783][T11241]  ? __lock_acquire+0xb3f/0x1580
[ 1921.779936][T11241]  ? kfree+0x2d/0x340
[ 1921.780056][T11241]  do_sock_setsockopt+0x149/0x3a0
[ 1921.780210][T11241]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1921.780366][T11241]  ? __lock_release+0x103/0x460
[ 1921.780517][T11241]  ? fd_install+0x1d1/0x5a0
[ 1921.780682][T11241]  ? trace_lock_acquire+0x14d/0x1f0
[ 1921.780833][T11241]  ? fdget+0x52/0x1e0
[ 1921.780951][T11241]  __sys_setsockopt+0x104/0x1a0
[ 1921.781106][T11241]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1921.781256][T11241]  ? __sys_socket+0x168/0x1e0
[ 1921.781408][T11241]  ? __pfx___sys_socket+0x10/0x10
[ 1921.781565][T11241]  __x64_sys_setsockopt+0xbd/0x160
[ 1921.781723][T11241]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1921.781913][T11241]  do_syscall_64+0xc1/0x1d0
[ 1921.782070][T11241]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1921.782256][T11241] RIP: 0033:0x7f886595491e
[ 1921.782415][T11241] 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
[ 1921.782945][T11241] RSP: 002b:00007fff352eb538 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1921.783180][T11241] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f886595491e
[ 1921.783403][T11241] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1921.783631][T11241] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1921.783858][T11241] R10: 00007fff352eb55c R11: 0000000000000246 R12: 0000000000000000
[ 1921.784087][T11241] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f8865a59000
[ 1921.784327][T11241]  </TASK>
[ 1921.793524][T11241] veth0: entered allmulticast mode
[ 1921.794076][T11241] veth1: entered allmulticast mode
[ 1921.794430][T11241] veth2: entered allmulticast mode
[ 1921.794750][T11241] veth3: entered allmulticast mode
[ 1951.326925][T11241] veth0: left allmulticast mode
[ 1951.327214][T11241] veth1: left allmulticast mode
[ 1951.327455][T11241] veth2: left allmulticast mode
[ 1951.327692][T11241] veth3: left allmulticast mode