[ 1901.290576][T10170] 
[ 1901.290707][T10170] =============================
[ 1901.290869][T10170] WARNING: suspicious RCU usage
[ 1901.291039][T10170] 6.12.0-rc6-virtme #1 Not tainted
[ 1901.291197][T10170] -----------------------------
[ 1901.292192][T10170] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1901.292536][T10170] 
[ 1901.292536][T10170] other info that might help us debug this:
[ 1901.292536][T10170] 
[ 1901.292922][T10170] 
[ 1901.292922][T10170] rcu_scheduler_active = 2, debug_locks = 1
[ 1901.293245][T10170] no locks held by smcrouted/10170.
[ 1901.293582][T10170] 
[ 1901.293582][T10170] stack backtrace:
[ 1901.293814][T10170] CPU: 3 UID: 0 PID: 10170 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1901.294095][T10170] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1901.294454][T10170] Call Trace:
[ 1901.294579][T10170]  <TASK>
[ 1901.294666][T10170]  dump_stack_lvl+0xb0/0xd0
[ 1901.294835][T10170]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1901.295013][T10170]  ip6mr_get_table+0x142/0x190
[ 1901.295174][T10170]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1901.295358][T10170]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1901.295567][T10170]  ? __lock_release+0x103/0x460
[ 1901.295734][T10170]  ? __might_fault+0x11b/0x170
[ 1901.295910][T10170]  ? trace_lock_acquire+0x14d/0x1f0
[ 1901.296091][T10170]  ? __might_fault+0xc3/0x170
[ 1901.296265][T10170]  ? lock_acquire+0x32/0xc0
[ 1901.296444][T10170]  ? __might_fault+0xc3/0x170
[ 1901.296612][T10170]  ? __might_fault+0x11b/0x170
[ 1901.296791][T10170]  do_ipv6_setsockopt+0x705/0x34e0
[ 1901.296967][T10170]  ? __lock_release+0xe0/0x460
[ 1901.297142][T10170]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1901.297319][T10170]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1901.297500][T10170]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1901.297655][T10170]  ? validate_chain+0x1fe/0xae0
[ 1901.297824][T10170]  ? is_bpf_text_address+0x67/0x120
[ 1901.297989][T10170]  ? __pfx_validate_chain+0x10/0x10
[ 1901.298180][T10170]  ? hlock_class+0x4e/0x130
[ 1901.298361][T10170]  ? mark_lock+0x38/0x3e0
[ 1901.298516][T10170]  ? __lock_acquire+0xb3f/0x1580
[ 1901.298722][T10170]  ? find_held_lock+0x2c/0x110
[ 1901.298909][T10170]  ? ipv6_setsockopt+0x7f/0xe0
[ 1901.299073][T10170]  ipv6_setsockopt+0x7f/0xe0
[ 1901.299227][T10170]  rawv6_setsockopt+0xb7/0x550
[ 1901.299411][T10170]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1901.299560][T10170]  ? __lock_acquire+0xb3f/0x1580
[ 1901.299723][T10170]  ? kfree+0x2d/0x340
[ 1901.299854][T10170]  do_sock_setsockopt+0x149/0x3a0
[ 1901.300008][T10170]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1901.300178][T10170]  ? __lock_release+0x103/0x460
[ 1901.300357][T10170]  ? fd_install+0x1d1/0x5a0
[ 1901.300518][T10170]  ? trace_lock_acquire+0x14d/0x1f0
[ 1901.300689][T10170]  ? fdget+0x52/0x1e0
[ 1901.300809][T10170]  __sys_setsockopt+0x104/0x1a0
[ 1901.300968][T10170]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1901.301131][T10170]  ? __sys_socket+0x168/0x1e0
[ 1901.301321][T10170]  ? __pfx___sys_socket+0x10/0x10
[ 1901.301529][T10170]  __x64_sys_setsockopt+0xbd/0x160
[ 1901.301684][T10170]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1901.301873][T10170]  do_syscall_64+0xc1/0x1d0
[ 1901.302032][T10170]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1901.302221][T10170] RIP: 0033:0x7fedce99991e
[ 1901.302396][T10170] 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
[ 1901.302950][T10170] RSP: 002b:00007ffff544d3e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1901.303179][T10170] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fedce99991e
[ 1901.303427][T10170] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1901.303674][T10170] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1901.303907][T10170] R10: 00007ffff544d40c R11: 0000000000000246 R12: 0000000000000000
[ 1901.304158][T10170] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fedcea9e000
[ 1901.304425][T10170]  </TASK>
[ 1901.311541][T10170] veth0: entered allmulticast mode
[ 1901.312066][T10170] veth1: entered allmulticast mode
[ 1901.312467][T10170] veth2: entered allmulticast mode
[ 1901.312809][T10170] veth3: entered allmulticast mode
[ 1901.313140][T10170] veth4: entered allmulticast mode
[ 1901.313496][T10170] veth5: entered allmulticast mode
[ 1947.906374][T10170] veth0: left allmulticast mode
[ 1947.906695][T10170] veth1: left allmulticast mode
[ 1947.906945][T10170] veth2: left allmulticast mode
[ 1947.907195][T10170] veth3: left allmulticast mode
[ 1947.907454][T10170] veth4: left allmulticast mode
[ 1947.907719][T10170] veth5: left allmulticast mode