[ 1294.270743][T14908] 
[ 1294.271271][T14908] =============================
[ 1294.271447][T14908] WARNING: suspicious RCU usage
[ 1294.271628][T14908] 6.12.0-rc7-virtme #1 Not tainted
[ 1294.271790][T14908] -----------------------------
[ 1294.271948][T14908] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1294.272180][T14908] 
[ 1294.272180][T14908] other info that might help us debug this:
[ 1294.272180][T14908] 
[ 1294.272481][T14908] 
[ 1294.272481][T14908] rcu_scheduler_active = 2, debug_locks = 1
[ 1294.272740][T14908] no locks held by smcrouted/14908.
[ 1294.272912][T14908] 
[ 1294.272912][T14908] stack backtrace:
[ 1294.273139][T14908] CPU: 0 UID: 0 PID: 14908 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1294.273436][T14908] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1294.273678][T14908] Call Trace:
[ 1294.273825][T14908]  <TASK>
[ 1294.273926][T14908]  dump_stack_lvl+0xb0/0xd0
[ 1294.274113][T14908]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1294.274287][T14908]  ip6mr_get_table+0x142/0x190
[ 1294.274473][T14908]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1294.274649][T14908]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1294.274876][T14908]  ? __lock_release+0x103/0x460
[ 1294.275051][T14908]  ? __might_fault+0x11b/0x170
[ 1294.275229][T14908]  ? trace_lock_acquire+0x14d/0x1f0
[ 1294.275413][T14908]  ? __might_fault+0xc3/0x170
[ 1294.275585][T14908]  ? lock_acquire+0x32/0xc0
[ 1294.275761][T14908]  ? __might_fault+0xc3/0x170
[ 1294.275921][T14908]  ? __might_fault+0x11b/0x170
[ 1294.276087][T14908]  do_ipv6_setsockopt+0x705/0x34e0
[ 1294.276247][T14908]  ? __lock_release+0x10/0x460
[ 1294.276408][T14908]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1294.276565][T14908]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1294.276733][T14908]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1294.276891][T14908]  ? validate_chain+0x1fe/0xae0
[ 1294.277050][T14908]  ? is_bpf_text_address+0x67/0x120
[ 1294.277227][T14908]  ? __pfx_validate_chain+0x10/0x10
[ 1294.277385][T14908]  ? hlock_class+0x4e/0x130
[ 1294.277546][T14908]  ? mark_lock+0x38/0x3e0
[ 1294.277682][T14908]  ? __lock_acquire+0xb3f/0x1580
[ 1294.277860][T14908]  ? find_held_lock+0x2c/0x110
[ 1294.278037][T14908]  ? ipv6_setsockopt+0x7f/0xe0
[ 1294.278199][T14908]  ipv6_setsockopt+0x7f/0xe0
[ 1294.278364][T14908]  rawv6_setsockopt+0xb7/0x550
[ 1294.278530][T14908]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1294.278704][T14908]  ? __lock_acquire+0xb3f/0x1580
[ 1294.278901][T14908]  ? kfree+0x2d/0x340
[ 1294.279037][T14908]  do_sock_setsockopt+0x149/0x3a0
[ 1294.279202][T14908]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1294.279376][T14908]  ? __lock_release+0x103/0x460
[ 1294.279546][T14908]  ? fd_install+0x1d1/0x5a0
[ 1294.279718][T14908]  ? trace_lock_acquire+0x14d/0x1f0
[ 1294.279886][T14908]  ? fdget+0x52/0x1e0
[ 1294.280019][T14908]  __sys_setsockopt+0x104/0x1a0
[ 1294.280191][T14908]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1294.280350][T14908]  ? __sys_socket+0x168/0x1e0
[ 1294.280512][T14908]  ? __pfx___sys_socket+0x10/0x10
[ 1294.280679][T14908]  ? do_user_addr_fault+0x374/0xe30
[ 1294.280853][T14908]  __x64_sys_setsockopt+0xbd/0x160
[ 1294.281021][T14908]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1294.281226][T14908]  do_syscall_64+0xc1/0x1d0
[ 1294.281389][T14908]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1294.281615][T14908] RIP: 0033:0x7fdb77c2691e
[ 1294.281796][T14908] 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
[ 1294.282364][T14908] RSP: 002b:00007ffd5e5df0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1294.282610][T14908] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdb77c2691e
[ 1294.282848][T14908] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1294.283148][T14908] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1294.283416][T14908] R10: 00007ffd5e5df0ec R11: 0000000000000246 R12: 0000000000000000
[ 1294.283660][T14908] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fdb77d2b000
[ 1294.283913][T14908]  </TASK>
[ 1294.287031][T14908] veth0: entered allmulticast mode
[ 1294.287580][T14908] veth1: entered allmulticast mode
[ 1294.287917][T14908] veth2: entered allmulticast mode
[ 1294.288248][T14908] veth3: entered allmulticast mode
[ 1312.417337][T14908] veth0: left allmulticast mode
[ 1312.418197][T14908] veth1: left allmulticast mode
[ 1312.418674][T14908] veth2: left allmulticast mode
[ 1312.418961][T14908] veth3: left allmulticast mode