[ 1283.680015][T15986] 
[ 1283.680219][T15986] =============================
[ 1283.681812][T15986] WARNING: suspicious RCU usage
[ 1283.682086][T15986] 6.12.0-rc6-virtme #1 Not tainted
[ 1283.682341][T15986] -----------------------------
[ 1283.682547][T15986] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1283.682932][T15986] 
[ 1283.682932][T15986] other info that might help us debug this:
[ 1283.682932][T15986] 
[ 1283.683436][T15986] 
[ 1283.683436][T15986] rcu_scheduler_active = 2, debug_locks = 1
[ 1283.683819][T15986] no locks held by smcrouted/15986.
[ 1283.683996][T15986] 
[ 1283.683996][T15986] stack backtrace:
[ 1283.684244][T15986] CPU: 3 UID: 0 PID: 15986 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1283.684703][T15986] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1283.684976][T15986] Call Trace:
[ 1283.685212][T15986]  <TASK>
[ 1283.685362][T15986]  dump_stack_lvl+0xb0/0xd0
[ 1283.685653][T15986]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1283.685942][T15986]  ip6mr_get_table+0x142/0x190
[ 1283.686152][T15986]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1283.686398][T15986]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1283.686731][T15986]  ? __lock_release+0x103/0x460
[ 1283.686903][T15986]  ? __might_fault+0x11b/0x170
[ 1283.687143][T15986]  ? trace_lock_acquire+0x14d/0x1f0
[ 1283.687421][T15986]  ? __might_fault+0xc3/0x170
[ 1283.687705][T15986]  ? lock_acquire+0x32/0xc0
[ 1283.687923][T15986]  ? __might_fault+0xc3/0x170
[ 1283.688141][T15986]  ? __might_fault+0x11b/0x170
[ 1283.688356][T15986]  do_ipv6_setsockopt+0x705/0x34e0
[ 1283.688627][T15986]  ? __lock_release+0xe0/0x460
[ 1283.688871][T15986]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1283.689046][T15986]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1283.689221][T15986]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1283.689494][T15986]  ? validate_chain+0x1fe/0xae0
[ 1283.689777][T15986]  ? is_bpf_text_address+0x67/0x120
[ 1283.690062][T15986]  ? __pfx_validate_chain+0x10/0x10
[ 1283.690293][T15986]  ? hlock_class+0x4e/0x130
[ 1283.690518][T15986]  ? mark_lock+0x38/0x3e0
[ 1283.690745][T15986]  ? __lock_acquire+0xb3f/0x1580
[ 1283.691047][T15986]  ? find_held_lock+0x2c/0x110
[ 1283.691324][T15986]  ? ipv6_setsockopt+0x7f/0xe0
[ 1283.691602][T15986]  ipv6_setsockopt+0x7f/0xe0
[ 1283.691874][T15986]  rawv6_setsockopt+0xb7/0x550
[ 1283.692136][T15986]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1283.692409][T15986]  ? __lock_acquire+0xb3f/0x1580
[ 1283.692694][T15986]  ? kfree+0x2d/0x340
[ 1283.692924][T15986]  do_sock_setsockopt+0x149/0x3a0
[ 1283.693192][T15986]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1283.693471][T15986]  ? __lock_release+0x103/0x460
[ 1283.693742][T15986]  ? fd_install+0x1d1/0x5a0
[ 1283.694026][T15986]  ? trace_lock_acquire+0x14d/0x1f0
[ 1283.694250][T15986]  ? fdget+0x52/0x1e0
[ 1283.694459][T15986]  __sys_setsockopt+0x104/0x1a0
[ 1283.694738][T15986]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1283.694929][T15986]  ? __sys_socket+0x168/0x1e0
[ 1283.695111][T15986]  ? __pfx___sys_socket+0x10/0x10
[ 1283.695332][T15986]  ? do_user_addr_fault+0x374/0xe30
[ 1283.695599][T15986]  __x64_sys_setsockopt+0xbd/0x160
[ 1283.695840][T15986]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1283.696078][T15986]  do_syscall_64+0xc1/0x1d0
[ 1283.696357][T15986]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1283.696687][T15986] RIP: 0033:0x7fdadb3ae91e
[ 1283.696874][T15986] 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
[ 1283.697751][T15986] RSP: 002b:00007ffd7f505318 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1283.698094][T15986] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdadb3ae91e
[ 1283.698481][T15986] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1283.698807][T15986] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1283.699196][T15986] R10: 00007ffd7f50533c R11: 0000000000000246 R12: 0000000000000000
[ 1283.699494][T15986] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fdadb4b3000
[ 1283.699817][T15986]  </TASK>
[ 1283.703457][T15986] veth0: entered allmulticast mode
[ 1283.703973][T15986] veth1: entered allmulticast mode
[ 1283.704300][T15986] veth2: entered allmulticast mode
[ 1283.706301][T15986] veth3: entered allmulticast mode
[ 1302.316420][T15986] veth0: left allmulticast mode
[ 1302.316776][T15986] veth1: left allmulticast mode
[ 1302.317027][T15986] veth2: left allmulticast mode
[ 1302.317273][T15986] veth3: left allmulticast mode