[ 1261.112993][ T4456] 
[ 1261.113145][ T4456] =============================
[ 1261.113312][ T4456] WARNING: suspicious RCU usage
[ 1261.113469][ T4456] 6.12.0-rc7-virtme #1 Not tainted
[ 1261.113627][ T4456] -----------------------------
[ 1261.113805][ T4456] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1261.114048][ T4456] 
[ 1261.114048][ T4456] other info that might help us debug this:
[ 1261.114048][ T4456] 
[ 1261.114354][ T4456] 
[ 1261.114354][ T4456] rcu_scheduler_active = 2, debug_locks = 1
[ 1261.114594][ T4456] no locks held by smcrouted/4456.
[ 1261.114774][ T4456] 
[ 1261.114774][ T4456] stack backtrace:
[ 1261.114974][ T4456] CPU: 0 UID: 0 PID: 4456 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1261.115259][ T4456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1261.115460][ T4456] Call Trace:
[ 1261.115583][ T4456]  <TASK>
[ 1261.115675][ T4456]  dump_stack_lvl+0xb0/0xd0
[ 1261.115852][ T4456]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1261.116028][ T4456]  ip6mr_get_table+0x142/0x190
[ 1261.116200][ T4456]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1261.116362][ T4456]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1261.116565][ T4456]  ? __lock_release+0x103/0x460
[ 1261.116725][ T4456]  ? __might_fault+0x11b/0x170
[ 1261.116889][ T4456]  ? trace_lock_acquire+0x14d/0x1f0
[ 1261.117069][ T4456]  ? __might_fault+0xc3/0x170
[ 1261.117225][ T4456]  ? lock_acquire+0x32/0xc0
[ 1261.117380][ T4456]  ? __might_fault+0xc3/0x170
[ 1261.117545][ T4456]  ? __might_fault+0x11b/0x170
[ 1261.117723][ T4456]  do_ipv6_setsockopt+0x705/0x34e0
[ 1261.117887][ T4456]  ? __lock_release+0x10/0x460
[ 1261.118080][ T4456]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1261.118340][ T4456]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1261.118608][ T4456]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1261.118869][ T4456]  ? validate_chain+0x1fe/0xae0
[ 1261.119126][ T4456]  ? is_bpf_text_address+0x67/0x120
[ 1261.119393][ T4456]  ? __pfx_validate_chain+0x10/0x10
[ 1261.119645][ T4456]  ? hlock_class+0x4e/0x130
[ 1261.119828][ T4456]  ? mark_lock+0x38/0x3e0
[ 1261.119956][ T4456]  ? __lock_acquire+0xb3f/0x1580
[ 1261.120138][ T4456]  ? find_held_lock+0x2c/0x110
[ 1261.120306][ T4456]  ? ipv6_setsockopt+0x7f/0xe0
[ 1261.120463][ T4456]  ipv6_setsockopt+0x7f/0xe0
[ 1261.120622][ T4456]  rawv6_setsockopt+0xb7/0x550
[ 1261.120785][ T4456]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1261.120943][ T4456]  ? __lock_acquire+0xb3f/0x1580
[ 1261.121117][ T4456]  ? kfree+0x2d/0x340
[ 1261.121246][ T4456]  do_sock_setsockopt+0x149/0x3a0
[ 1261.121406][ T4456]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1261.121562][ T4456]  ? __lock_release+0x103/0x460
[ 1261.121722][ T4456]  ? fd_install+0x1d1/0x5a0
[ 1261.121884][ T4456]  ? trace_lock_acquire+0x14d/0x1f0
[ 1261.122057][ T4456]  ? fdget+0x52/0x1e0
[ 1261.122183][ T4456]  __sys_setsockopt+0x104/0x1a0
[ 1261.122345][ T4456]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1261.122511][ T4456]  ? __sys_socket+0x168/0x1e0
[ 1261.122668][ T4456]  ? __pfx___sys_socket+0x10/0x10
[ 1261.122833][ T4456]  ? do_user_addr_fault+0x374/0xe30
[ 1261.122995][ T4456]  __x64_sys_setsockopt+0xbd/0x160
[ 1261.123167][ T4456]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1261.123361][ T4456]  do_syscall_64+0xc1/0x1d0
[ 1261.123522][ T4456]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1261.123721][ T4456] RIP: 0033:0x7f3ca177c91e
[ 1261.123898][ T4456] 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
[ 1261.124454][ T4456] RSP: 002b:00007ffee1161d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1261.124696][ T4456] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3ca177c91e
[ 1261.124941][ T4456] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1261.125185][ T4456] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000001db6e010
[ 1261.125418][ T4456] R10: 00007ffee1161d6c R11: 0000000000000246 R12: 0000000000000000
[ 1261.125655][ T4456] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f3ca1881000
[ 1261.125906][ T4456]  </TASK>
[ 1261.128567][ T4456] veth0: entered allmulticast mode
[ 1261.129511][ T4456] veth1: entered allmulticast mode
[ 1261.129855][ T4456] veth2: entered allmulticast mode
[ 1261.130193][ T4456] veth3: entered allmulticast mode
[ 1261.130511][ T4456] veth4: entered allmulticast mode
[ 1261.130839][ T4456] veth5: entered allmulticast mode
[ 1271.769257][ T4542] GACT probability NOT on
[ 1288.412282][ T4456] veth0: left allmulticast mode
[ 1288.412605][ T4456] veth1: left allmulticast mode
[ 1288.412873][ T4456] veth2: left allmulticast mode
[ 1288.413112][ T4456] veth3: left allmulticast mode
[ 1288.413351][ T4456] veth4: left allmulticast mode
[ 1288.413590][ T4456] veth5: left allmulticast mode