[ 1280.551202][ T7731] 
[ 1280.551434][ T7731] =============================
[ 1280.551639][ T7731] WARNING: suspicious RCU usage
[ 1280.551838][ T7731] 6.12.0-rc7-virtme #1 Not tainted
[ 1280.552039][ T7731] -----------------------------
[ 1280.552248][ T7731] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1280.553436][ T7731] 
[ 1280.553436][ T7731] other info that might help us debug this:
[ 1280.553436][ T7731] 
[ 1280.553897][ T7731] 
[ 1280.553897][ T7731] rcu_scheduler_active = 2, debug_locks = 1
[ 1280.554289][ T7731] no locks held by smcrouted/7731.
[ 1280.554586][ T7731] 
[ 1280.554586][ T7731] stack backtrace:
[ 1280.554854][ T7731] CPU: 2 UID: 0 PID: 7731 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1280.555170][ T7731] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1280.555400][ T7731] Call Trace:
[ 1280.555537][ T7731]  <TASK>
[ 1280.555635][ T7731]  dump_stack_lvl+0xb0/0xd0
[ 1280.555822][ T7731]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1280.556007][ T7731]  ip6mr_get_table+0x142/0x190
[ 1280.556190][ T7731]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1280.556373][ T7731]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1280.556605][ T7731]  ? __lock_release+0x103/0x460
[ 1280.556785][ T7731]  ? __might_fault+0x11b/0x170
[ 1280.556965][ T7731]  ? trace_lock_acquire+0x14d/0x1f0
[ 1280.557145][ T7731]  ? __might_fault+0xc3/0x170
[ 1280.557324][ T7731]  ? lock_acquire+0x32/0xc0
[ 1280.557503][ T7731]  ? __might_fault+0xc3/0x170
[ 1280.557687][ T7731]  ? __might_fault+0x11b/0x170
[ 1280.557873][ T7731]  do_ipv6_setsockopt+0x705/0x34e0
[ 1280.558058][ T7731]  ? __lock_release+0x40/0x460
[ 1280.558233][ T7731]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1280.558411][ T7731]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1280.558591][ T7731]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1280.558776][ T7731]  ? validate_chain+0x1fe/0xae0
[ 1280.558949][ T7731]  ? is_bpf_text_address+0x67/0x120
[ 1280.559137][ T7731]  ? __pfx_validate_chain+0x10/0x10
[ 1280.559313][ T7731]  ? hlock_class+0x4e/0x130
[ 1280.559491][ T7731]  ? mark_lock+0x38/0x3e0
[ 1280.559634][ T7731]  ? __lock_acquire+0xb3f/0x1580
[ 1280.559824][ T7731]  ? find_held_lock+0x2c/0x110
[ 1280.560012][ T7731]  ? ipv6_setsockopt+0x7f/0xe0
[ 1280.560191][ T7731]  ipv6_setsockopt+0x7f/0xe0
[ 1280.560364][ T7731]  rawv6_setsockopt+0xb7/0x550
[ 1280.560537][ T7731]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1280.560705][ T7731]  ? __lock_acquire+0xb3f/0x1580
[ 1280.560875][ T7731]  ? kfree+0x2d/0x340
[ 1280.561009][ T7731]  do_sock_setsockopt+0x149/0x3a0
[ 1280.561178][ T7731]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1280.561352][ T7731]  ? __lock_release+0x103/0x460
[ 1280.561518][ T7731]  ? fd_install+0x1d1/0x5a0
[ 1280.561689][ T7731]  ? trace_lock_acquire+0x14d/0x1f0
[ 1280.561856][ T7731]  ? fdget+0x52/0x1e0
[ 1280.561991][ T7731]  __sys_setsockopt+0x104/0x1a0
[ 1280.562168][ T7731]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1280.562337][ T7731]  ? __sys_socket+0x168/0x1e0
[ 1280.562513][ T7731]  ? __pfx___sys_socket+0x10/0x10
[ 1280.562678][ T7731]  ? do_user_addr_fault+0x374/0xe30
[ 1280.562853][ T7731]  __x64_sys_setsockopt+0xbd/0x160
[ 1280.563023][ T7731]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1280.563228][ T7731]  do_syscall_64+0xc1/0x1d0
[ 1280.563399][ T7731]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1280.563631][ T7731] RIP: 0033:0x7fc53496191e
[ 1280.563837][ T7731] 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
[ 1280.564442][ T7731] RSP: 002b:00007ffdcaf1f9f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1280.564706][ T7731] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc53496191e
[ 1280.564961][ T7731] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1280.565223][ T7731] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1280.565474][ T7731] R10: 00007ffdcaf1fa1c R11: 0000000000000246 R12: 0000000000000000
[ 1280.565726][ T7731] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc534a66000
[ 1280.565992][ T7731]  </TASK>
[ 1280.569921][ T7731] veth0: entered allmulticast mode
[ 1280.570581][ T7731] veth1: entered allmulticast mode
[ 1280.570996][ T7731] veth2: entered allmulticast mode
[ 1280.571378][ T7731] veth3: entered allmulticast mode
[ 1299.286061][ T7731] veth0: left allmulticast mode
[ 1299.286496][ T7731] veth1: left allmulticast mode
[ 1299.286754][ T7731] veth2: left allmulticast mode
[ 1299.287011][ T7731] veth3: left allmulticast mode