[ 1882.590872][T13274] 
[ 1882.591018][T13274] =============================
[ 1882.591181][T13274] WARNING: suspicious RCU usage
[ 1882.591358][T13274] 6.12.0-rc6-virtme #1 Not tainted
[ 1882.591513][T13274] -----------------------------
[ 1882.591688][T13274] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1882.591988][T13274] 
[ 1882.591988][T13274] other info that might help us debug this:
[ 1882.591988][T13274] 
[ 1882.592303][T13274] 
[ 1882.592303][T13274] rcu_scheduler_active = 2, debug_locks = 1
[ 1882.592529][T13274] no locks held by smcrouted/13274.
[ 1882.592727][T13274] 
[ 1882.592727][T13274] stack backtrace:
[ 1882.592955][T13274] CPU: 1 UID: 0 PID: 13274 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1882.593233][T13274] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1882.593580][T13274] Call Trace:
[ 1882.593705][T13274]  <TASK>
[ 1882.593791][T13274]  dump_stack_lvl+0xb0/0xd0
[ 1882.593963][T13274]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1882.594124][T13274]  ip6mr_get_table+0x142/0x190
[ 1882.594297][T13274]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1882.594455][T13274]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1882.594681][T13274]  ? __lock_release+0x103/0x460
[ 1882.594833][T13274]  ? __might_fault+0x11b/0x170
[ 1882.595033][T13274]  ? trace_lock_acquire+0x14d/0x1f0
[ 1882.595195][T13274]  ? __might_fault+0xc3/0x170
[ 1882.595377][T13274]  ? lock_acquire+0x32/0xc0
[ 1882.595533][T13274]  ? __might_fault+0xc3/0x170
[ 1882.595705][T13274]  ? __might_fault+0x11b/0x170
[ 1882.595869][T13274]  do_ipv6_setsockopt+0x705/0x34e0
[ 1882.596056][T13274]  ? __lock_release+0xe0/0x460
[ 1882.596211][T13274]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1882.596385][T13274]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1882.596612][T13274]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1882.596783][T13274]  ? validate_chain+0x1fe/0xae0
[ 1882.596955][T13274]  ? is_bpf_text_address+0x67/0x120
[ 1882.597131][T13274]  ? __pfx_validate_chain+0x10/0x10
[ 1882.597290][T13274]  ? hlock_class+0x4e/0x130
[ 1882.597462][T13274]  ? mark_lock+0x38/0x3e0
[ 1882.597582][T13274]  ? __lock_acquire+0xb3f/0x1580
[ 1882.597782][T13274]  ? find_held_lock+0x2c/0x110
[ 1882.597950][T13274]  ? ipv6_setsockopt+0x7f/0xe0
[ 1882.598102][T13274]  ipv6_setsockopt+0x7f/0xe0
[ 1882.598261][T13274]  rawv6_setsockopt+0xb7/0x550
[ 1882.598441][T13274]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1882.598594][T13274]  ? __lock_acquire+0xb3f/0x1580
[ 1882.598748][T13274]  ? kfree+0x2d/0x340
[ 1882.598873][T13274]  do_sock_setsockopt+0x149/0x3a0
[ 1882.599024][T13274]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1882.599177][T13274]  ? __lock_release+0x103/0x460
[ 1882.599326][T13274]  ? fd_install+0x1d1/0x5a0
[ 1882.599482][T13274]  ? trace_lock_acquire+0x14d/0x1f0
[ 1882.599629][T13274]  ? fdget+0x52/0x1e0
[ 1882.599750][T13274]  __sys_setsockopt+0x104/0x1a0
[ 1882.599906][T13274]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1882.600064][T13274]  ? __sys_socket+0x168/0x1e0
[ 1882.600218][T13274]  ? __pfx___sys_socket+0x10/0x10
[ 1882.600381][T13274]  __x64_sys_setsockopt+0xbd/0x160
[ 1882.600531][T13274]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1882.600719][T13274]  do_syscall_64+0xc1/0x1d0
[ 1882.600872][T13274]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1882.601056][T13274] RIP: 0033:0x7f8d202b791e
[ 1882.601214][T13274] 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
[ 1882.601742][T13274] RSP: 002b:00007fff1f958d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1882.601977][T13274] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8d202b791e
[ 1882.602200][T13274] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1882.602434][T13274] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1882.602671][T13274] R10: 00007fff1f958dac R11: 0000000000000246 R12: 0000000000000000
[ 1882.602923][T13274] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f8d203bc000
[ 1882.603172][T13274]  </TASK>
[ 1882.609682][T13274] veth0: entered allmulticast mode
[ 1882.612236][T13274] veth1: entered allmulticast mode
[ 1882.612596][T13274] veth2: entered allmulticast mode
[ 1882.612960][T13274] veth3: entered allmulticast mode
[ 1912.362704][T13274] veth0: left allmulticast mode
[ 1912.363090][T13274] veth1: left allmulticast mode
[ 1912.363346][T13274] veth2: left allmulticast mode
[ 1912.363590][T13274] veth3: left allmulticast mode