[ 1281.154065][T15012] 
[ 1281.154326][T15012] =============================
[ 1281.154509][T15012] WARNING: suspicious RCU usage
[ 1281.154704][T15012] 6.12.0-rc6-virtme #1 Not tainted
[ 1281.154889][T15012] -----------------------------
[ 1281.155140][T15012] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1281.155472][T15012] 
[ 1281.155472][T15012] other info that might help us debug this:
[ 1281.155472][T15012] 
[ 1281.155787][T15012] 
[ 1281.155787][T15012] rcu_scheduler_active = 2, debug_locks = 1
[ 1281.156027][T15012] no locks held by smcrouted/15012.
[ 1281.156221][T15012] 
[ 1281.156221][T15012] stack backtrace:
[ 1281.156430][T15012] CPU: 2 UID: 0 PID: 15012 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1281.156714][T15012] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1281.156914][T15012] Call Trace:
[ 1281.157041][T15012]  <TASK>
[ 1281.157144][T15012]  dump_stack_lvl+0xb0/0xd0
[ 1281.157365][T15012]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1281.157635][T15012]  ip6mr_get_table+0x142/0x190
[ 1281.157903][T15012]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1281.158166][T15012]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1281.158503][T15012]  ? __lock_release+0x103/0x460
[ 1281.158759][T15012]  ? __might_fault+0x11b/0x170
[ 1281.159061][T15012]  ? trace_lock_acquire+0x14d/0x1f0
[ 1281.159326][T15012]  ? __might_fault+0xc3/0x170
[ 1281.159598][T15012]  ? lock_acquire+0x32/0xc0
[ 1281.159869][T15012]  ? __might_fault+0xc3/0x170
[ 1281.160128][T15012]  ? __might_fault+0x11b/0x170
[ 1281.160401][T15012]  do_ipv6_setsockopt+0x705/0x34e0
[ 1281.160670][T15012]  ? __lock_release+0xe0/0x460
[ 1281.160929][T15012]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1281.161206][T15012]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1281.161455][T15012]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1281.161703][T15012]  ? validate_chain+0x1fe/0xae0
[ 1281.161955][T15012]  ? is_bpf_text_address+0x67/0x120
[ 1281.162219][T15012]  ? __pfx_validate_chain+0x10/0x10
[ 1281.162486][T15012]  ? hlock_class+0x4e/0x130
[ 1281.162746][T15012]  ? mark_lock+0x38/0x3e0
[ 1281.162965][T15012]  ? __lock_acquire+0xb3f/0x1580
[ 1281.163207][T15012]  ? find_held_lock+0x2c/0x110
[ 1281.163416][T15012]  ? ipv6_setsockopt+0x7f/0xe0
[ 1281.163670][T15012]  ipv6_setsockopt+0x7f/0xe0
[ 1281.163923][T15012]  rawv6_setsockopt+0xb7/0x550
[ 1281.164144][T15012]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1281.164356][T15012]  ? __lock_acquire+0xb3f/0x1580
[ 1281.164619][T15012]  ? kfree+0x2d/0x340
[ 1281.164817][T15012]  do_sock_setsockopt+0x149/0x3a0
[ 1281.165058][T15012]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1281.165312][T15012]  ? __lock_release+0x103/0x460
[ 1281.165555][T15012]  ? fd_install+0x1d1/0x5a0
[ 1281.165824][T15012]  ? trace_lock_acquire+0x14d/0x1f0
[ 1281.166067][T15012]  ? fdget+0x52/0x1e0
[ 1281.166268][T15012]  __sys_setsockopt+0x104/0x1a0
[ 1281.166537][T15012]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1281.166794][T15012]  ? __sys_socket+0x168/0x1e0
[ 1281.167052][T15012]  ? __pfx___sys_socket+0x10/0x10
[ 1281.167328][T15012]  ? do_user_addr_fault+0x374/0xe30
[ 1281.167596][T15012]  __x64_sys_setsockopt+0xbd/0x160
[ 1281.167858][T15012]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1281.168138][T15012]  do_syscall_64+0xc1/0x1d0
[ 1281.168366][T15012]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1281.168678][T15012] RIP: 0033:0x7f1e6dbde91e
[ 1281.168949][T15012] 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
[ 1281.169822][T15012] RSP: 002b:00007fff2c93c4d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1281.170210][T15012] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1e6dbde91e
[ 1281.170584][T15012] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1281.170960][T15012] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1281.171342][T15012] R10: 00007fff2c93c4fc R11: 0000000000000246 R12: 0000000000000000
[ 1281.171712][T15012] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f1e6dce3000
[ 1281.172135][T15012]  </TASK>
[ 1281.179899][T15012] veth0: entered allmulticast mode
[ 1281.180779][T15012] veth1: entered allmulticast mode
[ 1281.181388][T15012] veth2: entered allmulticast mode
[ 1281.181933][T15012] veth3: entered allmulticast mode
[ 1300.065625][T15012] veth0: left allmulticast mode
[ 1300.066109][T15012] veth1: left allmulticast mode
[ 1300.066540][T15012] veth2: left allmulticast mode
[ 1300.066952][T15012] veth3: left allmulticast mode