[ 1281.554649][ T7807] 
[ 1281.554863][ T7807] =============================
[ 1281.556418][ T7807] WARNING: suspicious RCU usage
[ 1281.556727][ T7807] 6.12.0-rc6-virtme #1 Not tainted
[ 1281.557008][ T7807] -----------------------------
[ 1281.557292][ T7807] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1281.557698][ T7807] 
[ 1281.557698][ T7807] other info that might help us debug this:
[ 1281.557698][ T7807] 
[ 1281.558236][ T7807] 
[ 1281.558236][ T7807] rcu_scheduler_active = 2, debug_locks = 1
[ 1281.558641][ T7807] no locks held by smcrouted/7807.
[ 1281.558924][ T7807] 
[ 1281.558924][ T7807] stack backtrace:
[ 1281.559272][ T7807] CPU: 3 UID: 0 PID: 7807 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1281.559723][ T7807] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1281.560039][ T7807] Call Trace:
[ 1281.560259][ T7807]  <TASK>
[ 1281.560397][ T7807]  dump_stack_lvl+0xb0/0xd0
[ 1281.560725][ T7807]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1281.561005][ T7807]  ip6mr_get_table+0x142/0x190
[ 1281.561249][ T7807]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1281.561484][ T7807]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1281.561830][ T7807]  ? __lock_release+0x103/0x460
[ 1281.562091][ T7807]  ? __might_fault+0x11b/0x170
[ 1281.562358][ T7807]  ? trace_lock_acquire+0x14d/0x1f0
[ 1281.562622][ T7807]  ? __might_fault+0xc3/0x170
[ 1281.562878][ T7807]  ? lock_acquire+0x32/0xc0
[ 1281.563150][ T7807]  ? __might_fault+0xc3/0x170
[ 1281.563413][ T7807]  ? __might_fault+0x11b/0x170
[ 1281.563682][ T7807]  do_ipv6_setsockopt+0x705/0x34e0
[ 1281.563946][ T7807]  ? __lock_release+0xe0/0x460
[ 1281.564207][ T7807]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1281.564474][ T7807]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1281.564740][ T7807]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1281.564996][ T7807]  ? validate_chain+0x1fe/0xae0
[ 1281.565272][ T7807]  ? is_bpf_text_address+0x67/0x120
[ 1281.565547][ T7807]  ? __pfx_validate_chain+0x10/0x10
[ 1281.565805][ T7807]  ? hlock_class+0x4e/0x130
[ 1281.566065][ T7807]  ? mark_lock+0x38/0x3e0
[ 1281.566273][ T7807]  ? __lock_acquire+0xb3f/0x1580
[ 1281.566555][ T7807]  ? find_held_lock+0x2c/0x110
[ 1281.566827][ T7807]  ? ipv6_setsockopt+0x7f/0xe0
[ 1281.567086][ T7807]  ipv6_setsockopt+0x7f/0xe0
[ 1281.567356][ T7807]  rawv6_setsockopt+0xb7/0x550
[ 1281.567640][ T7807]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1281.567902][ T7807]  ? __lock_acquire+0xb3f/0x1580
[ 1281.568174][ T7807]  ? kfree+0x2d/0x340
[ 1281.568385][ T7807]  do_sock_setsockopt+0x149/0x3a0
[ 1281.568661][ T7807]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1281.568924][ T7807]  ? __lock_release+0x103/0x460
[ 1281.569185][ T7807]  ? fd_install+0x1d1/0x5a0
[ 1281.569447][ T7807]  ? trace_lock_acquire+0x14d/0x1f0
[ 1281.569723][ T7807]  ? fdget+0x52/0x1e0
[ 1281.569936][ T7807]  __sys_setsockopt+0x104/0x1a0
[ 1281.570206][ T7807]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1281.570467][ T7807]  ? __sys_socket+0x168/0x1e0
[ 1281.570729][ T7807]  ? __pfx___sys_socket+0x10/0x10
[ 1281.571001][ T7807]  ? do_user_addr_fault+0x374/0xe30
[ 1281.571269][ T7807]  __x64_sys_setsockopt+0xbd/0x160
[ 1281.571523][ T7807]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1281.571861][ T7807]  do_syscall_64+0xc1/0x1d0
[ 1281.572130][ T7807]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1281.572462][ T7807] RIP: 0033:0x7fe46e59591e
[ 1281.572745][ T7807] 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
[ 1281.573654][ T7807] RSP: 002b:00007fff7d26d3d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1281.574071][ T7807] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe46e59591e
[ 1281.574470][ T7807] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1281.574857][ T7807] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1281.575246][ T7807] R10: 00007fff7d26d3fc R11: 0000000000000246 R12: 0000000000000000
[ 1281.575640][ T7807] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fe46e69a000
[ 1281.576075][ T7807]  </TASK>
[ 1281.594908][ T7807] veth0: entered allmulticast mode
[ 1281.596637][ T7807] veth1: entered allmulticast mode
[ 1281.597075][ T7807] veth2: entered allmulticast mode
[ 1281.597479][ T7807] veth3: entered allmulticast mode
[ 1300.472465][ T7807] veth0: left allmulticast mode
[ 1300.472800][ T7807] veth1: left allmulticast mode
[ 1300.473065][ T7807] veth2: left allmulticast mode
[ 1300.473323][ T7807] veth3: left allmulticast mode