[ 1296.005386][T13815] 
[ 1296.005560][T13815] =============================
[ 1296.005819][T13815] WARNING: suspicious RCU usage
[ 1296.006074][T13815] 6.12.0-rc6-virtme #1 Not tainted
[ 1296.006355][T13815] -----------------------------
[ 1296.006615][T13815] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1296.006991][T13815] 
[ 1296.006991][T13815] other info that might help us debug this:
[ 1296.006991][T13815] 
[ 1296.007858][T13815] 
[ 1296.007858][T13815] rcu_scheduler_active = 2, debug_locks = 1
[ 1296.008254][T13815] no locks held by smcrouted/13815.
[ 1296.008509][T13815] 
[ 1296.008509][T13815] stack backtrace:
[ 1296.008823][T13815] CPU: 3 UID: 0 PID: 13815 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1296.009271][T13815] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1296.009591][T13815] Call Trace:
[ 1296.009790][T13815]  <TASK>
[ 1296.009929][T13815]  dump_stack_lvl+0xb0/0xd0
[ 1296.010198][T13815]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1296.010469][T13815]  ip6mr_get_table+0x142/0x190
[ 1296.010735][T13815]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1296.011004][T13815]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1296.011356][T13815]  ? __lock_release+0x103/0x460
[ 1296.011614][T13815]  ? __might_fault+0x11b/0x170
[ 1296.011870][T13815]  ? trace_lock_acquire+0x14d/0x1f0
[ 1296.012138][T13815]  ? __might_fault+0xc3/0x170
[ 1296.012397][T13815]  ? lock_acquire+0x32/0xc0
[ 1296.012658][T13815]  ? __might_fault+0xc3/0x170
[ 1296.012915][T13815]  ? __might_fault+0x11b/0x170
[ 1296.013186][T13815]  do_ipv6_setsockopt+0x705/0x34e0
[ 1296.013451][T13815]  ? __lock_release+0xe0/0x460
[ 1296.013709][T13815]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1296.013959][T13815]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1296.014231][T13815]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1296.014502][T13815]  ? validate_chain+0x1fe/0xae0
[ 1296.014754][T13815]  ? is_bpf_text_address+0x67/0x120
[ 1296.015032][T13815]  ? __pfx_validate_chain+0x10/0x10
[ 1296.015290][T13815]  ? hlock_class+0x4e/0x130
[ 1296.015550][T13815]  ? mark_lock+0x38/0x3e0
[ 1296.015761][T13815]  ? __lock_acquire+0xb3f/0x1580
[ 1296.016033][T13815]  ? queued_spin_lock_slowpath+0xee/0x970
[ 1296.016292][T13815]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1296.016613][T13815]  ? find_held_lock+0x2c/0x110
[ 1296.016893][T13815]  ? ipv6_setsockopt+0x7f/0xe0
[ 1296.017154][T13815]  ipv6_setsockopt+0x7f/0xe0
[ 1296.017429][T13815]  rawv6_setsockopt+0xb7/0x550
[ 1296.017704][T13815]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1296.017972][T13815]  ? __lock_acquire+0xb3f/0x1580
[ 1296.018253][T13815]  ? kfree+0x2d/0x340
[ 1296.018469][T13815]  do_sock_setsockopt+0x149/0x3a0
[ 1296.018725][T13815]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1296.018977][T13815]  ? __lock_release+0x103/0x460
[ 1296.019239][T13815]  ? fd_install+0x1d1/0x5a0
[ 1296.019499][T13815]  ? trace_lock_acquire+0x14d/0x1f0
[ 1296.019760][T13815]  ? fdget+0x52/0x1e0
[ 1296.019967][T13815]  __sys_setsockopt+0x104/0x1a0
[ 1296.020232][T13815]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1296.020486][T13815]  ? __sys_socket+0x168/0x1e0
[ 1296.020737][T13815]  ? __pfx___sys_socket+0x10/0x10
[ 1296.020995][T13815]  ? do_user_addr_fault+0x374/0xe30
[ 1296.021264][T13815]  __x64_sys_setsockopt+0xbd/0x160
[ 1296.021524][T13815]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1296.021837][T13815]  do_syscall_64+0xc1/0x1d0
[ 1296.022100][T13815]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1296.022416][T13815] RIP: 0033:0x7fbf730a591e
[ 1296.022690][T13815] 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
[ 1296.023592][T13815] RSP: 002b:00007ffd4f826078 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1296.023978][T13815] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbf730a591e
[ 1296.024369][T13815] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1296.024746][T13815] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1296.025131][T13815] R10: 00007ffd4f82609c R11: 0000000000000246 R12: 0000000000000000
[ 1296.025515][T13815] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fbf731aa000
[ 1296.025934][T13815]  </TASK>
[ 1296.042402][T13815] veth0: entered allmulticast mode
[ 1296.043018][T13815] veth1: entered allmulticast mode
[ 1296.043415][T13815] veth2: entered allmulticast mode
[ 1296.043766][T13815] veth3: entered allmulticast mode
[ 1314.538100][T13815] veth0: left allmulticast mode
[ 1314.538649][T13815] veth1: left allmulticast mode
[ 1314.538933][T13815] veth2: left allmulticast mode
[ 1314.539233][T13815] veth3: left allmulticast mode