[ 1317.907434][ T8100] 
[ 1317.907623][ T8100] =============================
[ 1317.907827][ T8100] WARNING: suspicious RCU usage
[ 1317.908070][ T8100] 6.12.0-virtme #1 Not tainted
[ 1317.908270][ T8100] -----------------------------
[ 1317.908442][ T8100] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1317.908691][ T8100] 
[ 1317.908691][ T8100] other info that might help us debug this:
[ 1317.908691][ T8100] 
[ 1317.909029][ T8100] 
[ 1317.909029][ T8100] rcu_scheduler_active = 2, debug_locks = 1
[ 1317.909287][ T8100] no locks held by smcrouted/8100.
[ 1317.909464][ T8100] 
[ 1317.909464][ T8100] stack backtrace:
[ 1317.909673][ T8100] CPU: 2 UID: 0 PID: 8100 Comm: smcrouted Not tainted 6.12.0-virtme #1
[ 1317.909913][ T8100] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1317.910112][ T8100] Call Trace:
[ 1317.910239][ T8100]  <TASK>
[ 1317.910325][ T8100]  dump_stack_lvl+0xb0/0xd0
[ 1317.910503][ T8100]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1317.910672][ T8100]  ip6mr_get_table+0x142/0x190
[ 1317.910836][ T8100]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1317.910998][ T8100]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1317.911209][ T8100]  ? __lock_release+0x103/0x460
[ 1317.911364][ T8100]  ? __might_fault+0x11b/0x170
[ 1317.911530][ T8100]  ? trace_lock_acquire+0x14d/0x1f0
[ 1317.911692][ T8100]  ? __might_fault+0xc3/0x170
[ 1317.911850][ T8100]  ? lock_acquire+0x32/0xc0
[ 1317.912007][ T8100]  ? __might_fault+0xc3/0x170
[ 1317.912168][ T8100]  ? __might_fault+0x11b/0x170
[ 1317.912334][ T8100]  do_ipv6_setsockopt+0x705/0x34e0
[ 1317.912501][ T8100]  ? validate_chain+0x130/0xae0
[ 1317.912663][ T8100]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1317.912825][ T8100]  ? __pfx_validate_chain+0x10/0x10
[ 1317.912994][ T8100]  ? hlock_class+0x4e/0x130
[ 1317.913152][ T8100]  ? mark_lock+0x38/0x3e0
[ 1317.913281][ T8100]  ? __lock_acquire+0xb9a/0x1680
[ 1317.913445][ T8100]  ? find_held_lock+0x2c/0x110
[ 1317.913605][ T8100]  ? __lock_release+0x103/0x460
[ 1317.913761][ T8100]  ? __create_object+0x5e/0xb0
[ 1317.913925][ T8100]  ? __pfx___lock_release+0x10/0x10
[ 1317.914079][ T8100]  ? __pfx_validate_chain+0x10/0x10
[ 1317.914238][ T8100]  ? hlock_class+0x4e/0x130
[ 1317.914394][ T8100]  ? mark_lock+0x38/0x3e0
[ 1317.914527][ T8100]  ? ipv6_setsockopt+0x7f/0xe0
[ 1317.914685][ T8100]  ipv6_setsockopt+0x7f/0xe0
[ 1317.914849][ T8100]  rawv6_setsockopt+0xb7/0x550
[ 1317.915010][ T8100]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1317.915170][ T8100]  ? find_held_lock+0x2c/0x110
[ 1317.915335][ T8100]  ? kfree+0x2d/0x340
[ 1317.915464][ T8100]  ? __lock_release+0x103/0x460
[ 1317.915621][ T8100]  ? fd_install+0x1d1/0x5a0
[ 1317.915812][ T8100]  do_sock_setsockopt+0x149/0x3a0
[ 1317.915972][ T8100]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1317.916142][ T8100]  __sys_setsockopt+0xec/0x160
[ 1317.916303][ T8100]  __x64_sys_setsockopt+0xbd/0x160
[ 1317.916461][ T8100]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1317.916658][ T8100]  do_syscall_64+0xc1/0x1d0
[ 1317.916834][ T8100]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1317.917031][ T8100] RIP: 0033:0x7f625cf3791e
[ 1317.917202][ T8100] 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
[ 1317.917742][ T8100] RSP: 002b:00007fff076d3fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1317.917986][ T8100] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f625cf3791e
[ 1317.918221][ T8100] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1317.918453][ T8100] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1317.918691][ T8100] R10: 00007fff076d3fcc R11: 0000000000000246 R12: 0000000000000000
[ 1317.918939][ T8100] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f625d03c000
[ 1317.919193][ T8100]  </TASK>
[ 1317.922591][ T8100] veth0: entered allmulticast mode
[ 1317.923206][ T8100] veth1: entered allmulticast mode
[ 1317.923552][ T8100] veth2: entered allmulticast mode
[ 1317.923889][ T8100] veth3: entered allmulticast mode
[ 1317.924232][ T8100] veth4: entered allmulticast mode
[ 1317.924566][ T8100] veth5: entered allmulticast mode
[ 1343.871307][ T8100] veth0: left allmulticast mode
[ 1343.871687][ T8100] veth1: left allmulticast mode
[ 1343.871920][ T8100] veth2: left allmulticast mode
[ 1343.872170][ T8100] veth3: left allmulticast mode
[ 1343.872410][ T8100] veth4: left allmulticast mode
[ 1343.872644][ T8100] veth5: left allmulticast mode