[ 1328.117040][T11822] 
[ 1328.117174][T11822] =============================
[ 1328.117363][T11822] WARNING: suspicious RCU usage
[ 1328.117532][T11822] 6.12.0-rc7-virtme #1 Not tainted
[ 1328.117688][T11822] -----------------------------
[ 1328.117844][T11822] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1328.118081][T11822] 
[ 1328.118081][T11822] other info that might help us debug this:
[ 1328.118081][T11822] 
[ 1328.118450][T11822] 
[ 1328.118450][T11822] rcu_scheduler_active = 2, debug_locks = 1
[ 1328.118695][T11822] no locks held by smcrouted/11822.
[ 1328.118853][T11822] 
[ 1328.118853][T11822] stack backtrace:
[ 1328.119044][T11822] CPU: 3 UID: 0 PID: 11822 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1328.119347][T11822] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1328.119548][T11822] Call Trace:
[ 1328.119690][T11822]  <TASK>
[ 1328.119780][T11822]  dump_stack_lvl+0xb0/0xd0
[ 1328.119965][T11822]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1328.120132][T11822]  ip6mr_get_table+0x142/0x190
[ 1328.120303][T11822]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1328.120462][T11822]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1328.120670][T11822]  ? __lock_release+0x103/0x460
[ 1328.120832][T11822]  ? __might_fault+0x11b/0x170
[ 1328.120990][T11822]  ? trace_lock_acquire+0x14d/0x1f0
[ 1328.121156][T11822]  ? __might_fault+0xc3/0x170
[ 1328.121319][T11822]  ? lock_acquire+0x32/0xc0
[ 1328.121480][T11822]  ? __might_fault+0xc3/0x170
[ 1328.121646][T11822]  ? __might_fault+0x11b/0x170
[ 1328.121812][T11822]  do_ipv6_setsockopt+0x705/0x34e0
[ 1328.121972][T11822]  ? __lock_release+0x10/0x460
[ 1328.122136][T11822]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1328.122305][T11822]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1328.122474][T11822]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1328.122637][T11822]  ? validate_chain+0x1fe/0xae0
[ 1328.122813][T11822]  ? is_bpf_text_address+0x67/0x120
[ 1328.122980][T11822]  ? __pfx_validate_chain+0x10/0x10
[ 1328.123137][T11822]  ? hlock_class+0x4e/0x130
[ 1328.123296][T11822]  ? mark_lock+0x38/0x3e0
[ 1328.123421][T11822]  ? __lock_acquire+0xb3f/0x1580
[ 1328.123589][T11822]  ? find_held_lock+0x2c/0x110
[ 1328.123756][T11822]  ? ipv6_setsockopt+0x7f/0xe0
[ 1328.123914][T11822]  ipv6_setsockopt+0x7f/0xe0
[ 1328.124079][T11822]  rawv6_setsockopt+0xb7/0x550
[ 1328.124241][T11822]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1328.124399][T11822]  ? __lock_acquire+0xb3f/0x1580
[ 1328.124559][T11822]  ? kfree+0x2d/0x340
[ 1328.124685][T11822]  do_sock_setsockopt+0x149/0x3a0
[ 1328.124849][T11822]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1328.125047][T11822]  ? __lock_release+0x103/0x460
[ 1328.125218][T11822]  ? fd_install+0x1d1/0x5a0
[ 1328.125385][T11822]  ? trace_lock_acquire+0x14d/0x1f0
[ 1328.125555][T11822]  ? fdget+0x52/0x1e0
[ 1328.125686][T11822]  __sys_setsockopt+0x104/0x1a0
[ 1328.125859][T11822]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1328.126029][T11822]  ? __sys_socket+0x168/0x1e0
[ 1328.126211][T11822]  ? __pfx___sys_socket+0x10/0x10
[ 1328.126371][T11822]  ? do_user_addr_fault+0x374/0xe30
[ 1328.126534][T11822]  __x64_sys_setsockopt+0xbd/0x160
[ 1328.126698][T11822]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1328.126905][T11822]  do_syscall_64+0xc1/0x1d0
[ 1328.127077][T11822]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1328.127274][T11822] RIP: 0033:0x7f5350f8391e
[ 1328.127443][T11822] 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
[ 1328.128006][T11822] RSP: 002b:00007ffdf755fd28 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1328.128243][T11822] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5350f8391e
[ 1328.128493][T11822] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1328.128735][T11822] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1328.128986][T11822] R10: 00007ffdf755fd4c R11: 0000000000000246 R12: 0000000000000000
[ 1328.129239][T11822] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f5351088000
[ 1328.129496][T11822]  </TASK>
[ 1328.141458][T11822] veth0: entered allmulticast mode
[ 1328.142133][T11822] veth1: entered allmulticast mode
[ 1328.142553][T11822] veth2: entered allmulticast mode
[ 1328.143019][T11822] veth3: entered allmulticast mode
[ 1328.143436][T11822] veth4: entered allmulticast mode
[ 1328.143859][T11822] veth5: entered allmulticast mode
[ 1354.288784][T11822] veth0: left allmulticast mode
[ 1354.289376][T11822] veth1: left allmulticast mode
[ 1354.289791][T11822] veth2: left allmulticast mode
[ 1354.290192][T11822] veth3: left allmulticast mode
[ 1354.290621][T11822] veth4: left allmulticast mode
[ 1354.291027][T11822] veth5: left allmulticast mode