[ 1251.471330][T13277] 
[ 1251.471461][T13277] =============================
[ 1251.471628][T13277] WARNING: suspicious RCU usage
[ 1251.471788][T13277] 6.12.0-rc7-virtme #1 Not tainted
[ 1251.471946][T13277] -----------------------------
[ 1251.472102][T13277] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1251.472504][T13277] 
[ 1251.472504][T13277] other info that might help us debug this:
[ 1251.472504][T13277] 
[ 1251.472801][T13277] 
[ 1251.472801][T13277] rcu_scheduler_active = 2, debug_locks = 1
[ 1251.473038][T13277] no locks held by smcrouted/13277.
[ 1251.473215][T13277] 
[ 1251.473215][T13277] stack backtrace:
[ 1251.473409][T13277] CPU: 0 UID: 0 PID: 13277 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1251.473693][T13277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1251.473890][T13277] Call Trace:
[ 1251.474012][T13277]  <TASK>
[ 1251.474101][T13277]  dump_stack_lvl+0xb0/0xd0
[ 1251.474273][T13277]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1251.474444][T13277]  ip6mr_get_table+0x142/0x190
[ 1251.474607][T13277]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1251.474803][T13277]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1251.475011][T13277]  ? __lock_release+0x103/0x460
[ 1251.475170][T13277]  ? __might_fault+0x11b/0x170
[ 1251.475331][T13277]  ? trace_lock_acquire+0x14d/0x1f0
[ 1251.475495][T13277]  ? __might_fault+0xc3/0x170
[ 1251.475652][T13277]  ? lock_acquire+0x32/0xc0
[ 1251.475817][T13277]  ? __might_fault+0xc3/0x170
[ 1251.475978][T13277]  ? __might_fault+0x11b/0x170
[ 1251.476141][T13277]  do_ipv6_setsockopt+0x705/0x34e0
[ 1251.476302][T13277]  ? __lock_release+0x10/0x460
[ 1251.476459][T13277]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1251.476616][T13277]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1251.476777][T13277]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1251.476936][T13277]  ? validate_chain+0x1fe/0xae0
[ 1251.477093][T13277]  ? is_bpf_text_address+0x67/0x120
[ 1251.477259][T13277]  ? __pfx_validate_chain+0x10/0x10
[ 1251.477417][T13277]  ? hlock_class+0x4e/0x130
[ 1251.477573][T13277]  ? mark_lock+0x38/0x3e0
[ 1251.477699][T13277]  ? __lock_acquire+0xb3f/0x1580
[ 1251.477870][T13277]  ? find_held_lock+0x2c/0x110
[ 1251.478037][T13277]  ? ipv6_setsockopt+0x7f/0xe0
[ 1251.478193][T13277]  ipv6_setsockopt+0x7f/0xe0
[ 1251.478353][T13277]  rawv6_setsockopt+0xb7/0x550
[ 1251.478517][T13277]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1251.478691][T13277]  ? __lock_acquire+0xb3f/0x1580
[ 1251.478871][T13277]  ? kfree+0x2d/0x340
[ 1251.479002][T13277]  do_sock_setsockopt+0x149/0x3a0
[ 1251.479161][T13277]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1251.479322][T13277]  ? __lock_release+0x103/0x460
[ 1251.479479][T13277]  ? fd_install+0x1d1/0x5a0
[ 1251.479641][T13277]  ? trace_lock_acquire+0x14d/0x1f0
[ 1251.479802][T13277]  ? fdget+0x52/0x1e0
[ 1251.479927][T13277]  __sys_setsockopt+0x104/0x1a0
[ 1251.480088][T13277]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1251.480244][T13277]  ? __sys_socket+0x168/0x1e0
[ 1251.480402][T13277]  ? __pfx___sys_socket+0x10/0x10
[ 1251.480560][T13277]  ? do_user_addr_fault+0x374/0xe30
[ 1251.480723][T13277]  __x64_sys_setsockopt+0xbd/0x160
[ 1251.480881][T13277]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1251.481080][T13277]  do_syscall_64+0xc1/0x1d0
[ 1251.481240][T13277]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1251.481439][T13277] RIP: 0033:0x7f1be122791e
[ 1251.481619][T13277] 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
[ 1251.482163][T13277] RSP: 002b:00007fff36d807c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1251.482397][T13277] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1be122791e
[ 1251.482634][T13277] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1251.482906][T13277] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1251.483141][T13277] R10: 00007fff36d807ec R11: 0000000000000246 R12: 0000000000000000
[ 1251.483377][T13277] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f1be132c000
[ 1251.483622][T13277]  </TASK>
[ 1251.486025][T13277] veth0: entered allmulticast mode
[ 1251.488380][T13277] veth1: entered allmulticast mode
[ 1251.488719][T13277] veth2: entered allmulticast mode
[ 1251.489053][T13277] veth3: entered allmulticast mode
[ 1251.489402][T13277] veth4: entered allmulticast mode
[ 1251.489715][T13277] veth5: entered allmulticast mode
[ 1277.844408][T13277] veth0: left allmulticast mode
[ 1277.844759][T13277] veth1: left allmulticast mode
[ 1277.845005][T13277] veth2: left allmulticast mode
[ 1277.845272][T13277] veth3: left allmulticast mode
[ 1277.845526][T13277] veth4: left allmulticast mode
[ 1277.845777][T13277] veth5: left allmulticast mode