[ 1310.147407][ T9740] 
[ 1310.147591][ T9740] =============================
[ 1310.147782][ T9740] WARNING: suspicious RCU usage
[ 1310.147967][ T9740] 6.12.0-rc6-virtme #1 Not tainted
[ 1310.148149][ T9740] -----------------------------
[ 1310.148331][ T9740] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1310.149478][ T9740] 
[ 1310.149478][ T9740] other info that might help us debug this:
[ 1310.149478][ T9740] 
[ 1310.149935][ T9740] 
[ 1310.149935][ T9740] rcu_scheduler_active = 2, debug_locks = 1
[ 1310.150274][ T9740] no locks held by smcrouted/9740.
[ 1310.150568][ T9740] 
[ 1310.150568][ T9740] stack backtrace:
[ 1310.150876][ T9740] CPU: 2 UID: 0 PID: 9740 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1310.151182][ T9740] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1310.151394][ T9740] Call Trace:
[ 1310.151532][ T9740]  <TASK>
[ 1310.151626][ T9740]  dump_stack_lvl+0xb0/0xd0
[ 1310.151812][ T9740]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1310.151989][ T9740]  ip6mr_get_table+0x142/0x190
[ 1310.152164][ T9740]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1310.152347][ T9740]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1310.152572][ T9740]  ? __lock_release+0x103/0x460
[ 1310.152958][ T9740]  ? __might_fault+0x11b/0x170
[ 1310.153129][ T9740]  ? trace_lock_acquire+0x14d/0x1f0
[ 1310.153307][ T9740]  ? __might_fault+0xc3/0x170
[ 1310.153477][ T9740]  ? lock_acquire+0x32/0xc0
[ 1310.153650][ T9740]  ? __might_fault+0xc3/0x170
[ 1310.153834][ T9740]  ? __might_fault+0x11b/0x170
[ 1310.154009][ T9740]  do_ipv6_setsockopt+0x705/0x34e0
[ 1310.154186][ T9740]  ? __lock_release+0xe0/0x460
[ 1310.154363][ T9740]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1310.154526][ T9740]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1310.154699][ T9740]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1310.154873][ T9740]  ? validate_chain+0x1fe/0xae0
[ 1310.155047][ T9740]  ? is_bpf_text_address+0x67/0x120
[ 1310.155225][ T9740]  ? __pfx_validate_chain+0x10/0x10
[ 1310.155398][ T9740]  ? hlock_class+0x4e/0x130
[ 1310.155567][ T9740]  ? mark_lock+0x38/0x3e0
[ 1310.155699][ T9740]  ? __lock_acquire+0xb3f/0x1580
[ 1310.155879][ T9740]  ? find_held_lock+0x2c/0x110
[ 1310.156056][ T9740]  ? ipv6_setsockopt+0x7f/0xe0
[ 1310.156223][ T9740]  ipv6_setsockopt+0x7f/0xe0
[ 1310.156391][ T9740]  rawv6_setsockopt+0xb7/0x550
[ 1310.156565][ T9740]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1310.156731][ T9740]  ? __lock_acquire+0xb3f/0x1580
[ 1310.156917][ T9740]  ? kfree+0x2d/0x340
[ 1310.157053][ T9740]  do_sock_setsockopt+0x149/0x3a0
[ 1310.157225][ T9740]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1310.157407][ T9740]  ? __lock_release+0x103/0x460
[ 1310.157577][ T9740]  ? fd_install+0x1d1/0x5a0
[ 1310.157750][ T9740]  ? trace_lock_acquire+0x14d/0x1f0
[ 1310.157921][ T9740]  ? fdget+0x52/0x1e0
[ 1310.158056][ T9740]  __sys_setsockopt+0x104/0x1a0
[ 1310.158230][ T9740]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1310.158404][ T9740]  ? __sys_socket+0x168/0x1e0
[ 1310.158572][ T9740]  ? __pfx___sys_socket+0x10/0x10
[ 1310.158745][ T9740]  ? do_user_addr_fault+0x374/0xe30
[ 1310.158921][ T9740]  __x64_sys_setsockopt+0xbd/0x160
[ 1310.159088][ T9740]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1310.159296][ T9740]  do_syscall_64+0xc1/0x1d0
[ 1310.159474][ T9740]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1310.159691][ T9740] RIP: 0033:0x7fc58de5791e
[ 1310.159871][ T9740] 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
[ 1310.160459][ T9740] RSP: 002b:00007fffeff6df98 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1310.160705][ T9740] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc58de5791e
[ 1310.160944][ T9740] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1310.161172][ T9740] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1310.161405][ T9740] R10: 00007fffeff6dfbc R11: 0000000000000246 R12: 0000000000000000
[ 1310.161641][ T9740] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc58df5c000
[ 1310.161886][ T9740]  </TASK>
[ 1310.171904][ T9740] veth0: entered allmulticast mode
[ 1310.172471][ T9740] veth1: entered allmulticast mode
[ 1310.172873][ T9740] veth2: entered allmulticast mode
[ 1310.173224][ T9740] veth3: entered allmulticast mode
[ 1310.173596][ T9740] veth4: entered allmulticast mode
[ 1310.173956][ T9740] veth5: entered allmulticast mode
[ 1336.039813][ T9740] veth0: left allmulticast mode
[ 1336.040181][ T9740] veth1: left allmulticast mode
[ 1336.040417][ T9740] veth2: left allmulticast mode
[ 1336.040671][ T9740] veth3: left allmulticast mode
[ 1336.040903][ T9740] veth4: left allmulticast mode
[ 1336.041143][ T9740] veth5: left allmulticast mode