[ 1278.656970][T15711] 
[ 1278.657142][T15711] =============================
[ 1278.657346][T15711] WARNING: suspicious RCU usage
[ 1278.657791][T15711] 6.12.0-rc7-virtme #1 Not tainted
[ 1278.657979][T15711] -----------------------------
[ 1278.658239][T15711] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1278.658558][T15711] 
[ 1278.658558][T15711] other info that might help us debug this:
[ 1278.658558][T15711] 
[ 1278.658878][T15711] 
[ 1278.658878][T15711] rcu_scheduler_active = 2, debug_locks = 1
[ 1278.659127][T15711] no locks held by smcrouted/15711.
[ 1278.659301][T15711] 
[ 1278.659301][T15711] stack backtrace:
[ 1278.659554][T15711] CPU: 2 UID: 0 PID: 15711 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1278.659847][T15711] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1278.660044][T15711] Call Trace:
[ 1278.660164][T15711]  <TASK>
[ 1278.660249][T15711]  dump_stack_lvl+0xb0/0xd0
[ 1278.660431][T15711]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1278.660601][T15711]  ip6mr_get_table+0x142/0x190
[ 1278.660762][T15711]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1278.660920][T15711]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1278.661124][T15711]  ? __lock_release+0x103/0x460
[ 1278.661280][T15711]  ? __might_fault+0x11b/0x170
[ 1278.661439][T15711]  ? trace_lock_acquire+0x14d/0x1f0
[ 1278.661601][T15711]  ? __might_fault+0xc3/0x170
[ 1278.661764][T15711]  ? lock_acquire+0x32/0xc0
[ 1278.661924][T15711]  ? __might_fault+0xc3/0x170
[ 1278.662084][T15711]  ? __might_fault+0x11b/0x170
[ 1278.662247][T15711]  do_ipv6_setsockopt+0x705/0x34e0
[ 1278.662425][T15711]  ? __lock_release+0x40/0x460
[ 1278.662639][T15711]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1278.662800][T15711]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1278.662960][T15711]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1278.663117][T15711]  ? validate_chain+0x1fe/0xae0
[ 1278.663281][T15711]  ? is_bpf_text_address+0x67/0x120
[ 1278.663456][T15711]  ? __pfx_validate_chain+0x10/0x10
[ 1278.663612][T15711]  ? hlock_class+0x4e/0x130
[ 1278.663766][T15711]  ? mark_lock+0x38/0x3e0
[ 1278.663892][T15711]  ? __lock_acquire+0xb3f/0x1580
[ 1278.664054][T15711]  ? find_held_lock+0x2c/0x110
[ 1278.664215][T15711]  ? ipv6_setsockopt+0x7f/0xe0
[ 1278.664369][T15711]  ipv6_setsockopt+0x7f/0xe0
[ 1278.664537][T15711]  rawv6_setsockopt+0xb7/0x550
[ 1278.664693][T15711]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1278.664844][T15711]  ? __lock_acquire+0xb3f/0x1580
[ 1278.665002][T15711]  ? kfree+0x2d/0x340
[ 1278.665125][T15711]  do_sock_setsockopt+0x149/0x3a0
[ 1278.665282][T15711]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1278.665435][T15711]  ? __lock_release+0x103/0x460
[ 1278.665667][T15711]  ? fd_install+0x1d1/0x5a0
[ 1278.665933][T15711]  ? trace_lock_acquire+0x14d/0x1f0
[ 1278.666154][T15711]  ? fdget+0x52/0x1e0
[ 1278.666354][T15711]  __sys_setsockopt+0x104/0x1a0
[ 1278.666603][T15711]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1278.666837][T15711]  ? __sys_socket+0x168/0x1e0
[ 1278.667100][T15711]  ? __pfx___sys_socket+0x10/0x10
[ 1278.667355][T15711]  ? do_user_addr_fault+0x374/0xe30
[ 1278.667611][T15711]  __x64_sys_setsockopt+0xbd/0x160
[ 1278.667859][T15711]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1278.668182][T15711]  do_syscall_64+0xc1/0x1d0
[ 1278.668438][T15711]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1278.668740][T15711] RIP: 0033:0x7f391381191e
[ 1278.669004][T15711] 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
[ 1278.669887][T15711] RSP: 002b:00007ffc8154ecd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1278.670278][T15711] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f391381191e
[ 1278.670658][T15711] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1278.671042][T15711] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1278.671429][T15711] R10: 00007ffc8154ecfc R11: 0000000000000246 R12: 0000000000000000
[ 1278.671827][T15711] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f3913916000
[ 1278.672240][T15711]  </TASK>
[ 1278.677834][T15711] veth0: entered allmulticast mode
[ 1278.678500][T15711] veth1: entered allmulticast mode
[ 1278.678941][T15711] veth2: entered allmulticast mode
[ 1278.679280][T15711] veth3: entered allmulticast mode
[ 1297.012105][T15711] veth0: left allmulticast mode
[ 1297.012629][T15711] veth1: left allmulticast mode
[ 1297.013027][T15711] veth2: left allmulticast mode
[ 1297.013446][T15711] veth3: left allmulticast mode