[ 1328.576876][T17439] 
[ 1328.577134][T17439] =============================
[ 1328.577953][T17439] WARNING: suspicious RCU usage
[ 1328.578196][T17439] 6.12.0-rc7-virtme #1 Not tainted
[ 1328.578411][T17439] -----------------------------
[ 1328.578611][T17439] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1328.578893][T17439] 
[ 1328.578893][T17439] other info that might help us debug this:
[ 1328.578893][T17439] 
[ 1328.579235][T17439] 
[ 1328.579235][T17439] rcu_scheduler_active = 2, debug_locks = 1
[ 1328.579518][T17439] no locks held by smcrouted/17439.
[ 1328.579707][T17439] 
[ 1328.579707][T17439] stack backtrace:
[ 1328.579933][T17439] CPU: 2 UID: 0 PID: 17439 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1328.580233][T17439] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1328.580461][T17439] Call Trace:
[ 1328.580629][T17439]  <TASK>
[ 1328.580733][T17439]  dump_stack_lvl+0xb0/0xd0
[ 1328.580950][T17439]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1328.581126][T17439]  ip6mr_get_table+0x142/0x190
[ 1328.581297][T17439]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1328.581506][T17439]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1328.581742][T17439]  ? __lock_release+0x103/0x460
[ 1328.581922][T17439]  ? __might_fault+0x11b/0x170
[ 1328.582099][T17439]  ? trace_lock_acquire+0x14d/0x1f0
[ 1328.582285][T17439]  ? __might_fault+0xc3/0x170
[ 1328.582466][T17439]  ? lock_acquire+0x32/0xc0
[ 1328.582630][T17439]  ? __might_fault+0xc3/0x170
[ 1328.582801][T17439]  ? __might_fault+0x11b/0x170
[ 1328.582973][T17439]  do_ipv6_setsockopt+0x705/0x34e0
[ 1328.583143][T17439]  ? __lock_release+0x40/0x460
[ 1328.583312][T17439]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1328.583478][T17439]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1328.583654][T17439]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1328.583826][T17439]  ? validate_chain+0x1fe/0xae0
[ 1328.583994][T17439]  ? is_bpf_text_address+0x67/0x120
[ 1328.584180][T17439]  ? __pfx_validate_chain+0x10/0x10
[ 1328.584346][T17439]  ? hlock_class+0x4e/0x130
[ 1328.584517][T17439]  ? mark_lock+0x38/0x3e0
[ 1328.584646][T17439]  ? __lock_acquire+0xb3f/0x1580
[ 1328.584828][T17439]  ? find_held_lock+0x2c/0x110
[ 1328.585010][T17439]  ? ipv6_setsockopt+0x7f/0xe0
[ 1328.585173][T17439]  ipv6_setsockopt+0x7f/0xe0
[ 1328.585346][T17439]  rawv6_setsockopt+0xb7/0x550
[ 1328.585518][T17439]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1328.585694][T17439]  ? __lock_acquire+0xb3f/0x1580
[ 1328.585876][T17439]  ? kfree+0x2d/0x340
[ 1328.586023][T17439]  do_sock_setsockopt+0x149/0x3a0
[ 1328.586204][T17439]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1328.586382][T17439]  ? __lock_release+0x103/0x460
[ 1328.586566][T17439]  ? fd_install+0x1d1/0x5a0
[ 1328.586756][T17439]  ? trace_lock_acquire+0x14d/0x1f0
[ 1328.586948][T17439]  ? fdget+0x52/0x1e0
[ 1328.587096][T17439]  __sys_setsockopt+0x104/0x1a0
[ 1328.587285][T17439]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1328.587470][T17439]  ? __sys_socket+0x168/0x1e0
[ 1328.587656][T17439]  ? __pfx___sys_socket+0x10/0x10
[ 1328.587841][T17439]  ? do_user_addr_fault+0x374/0xe30
[ 1328.588018][T17439]  __x64_sys_setsockopt+0xbd/0x160
[ 1328.588191][T17439]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1328.588404][T17439]  do_syscall_64+0xc1/0x1d0
[ 1328.588577][T17439]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1328.588799][T17439] RIP: 0033:0x7faaaa82491e
[ 1328.588979][T17439] 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
[ 1328.589574][T17439] RSP: 002b:00007ffc95424778 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1328.589851][T17439] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faaaa82491e
[ 1328.590103][T17439] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1328.590351][T17439] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1328.590617][T17439] R10: 00007ffc9542479c R11: 0000000000000246 R12: 0000000000000000
[ 1328.590873][T17439] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007faaaa929000
[ 1328.591143][T17439]  </TASK>
[ 1328.594320][T17439] veth0: entered allmulticast mode
[ 1328.595068][T17439] veth1: entered allmulticast mode
[ 1328.595458][T17439] veth2: entered allmulticast mode
[ 1328.604148][T17439] veth3: entered allmulticast mode
[ 1328.605257][T17439] veth4: entered allmulticast mode
[ 1328.605698][T17439] veth5: entered allmulticast mode
[ 1353.749560][T17439] veth0: left allmulticast mode
[ 1353.749937][T17439] veth1: left allmulticast mode
[ 1353.750216][T17439] veth2: left allmulticast mode
[ 1353.750520][T17439] veth3: left allmulticast mode
[ 1353.751079][T17439] veth4: left allmulticast mode
[ 1353.751364][T17439] veth5: left allmulticast mode