[ 1304.016287][ T9977] 
[ 1304.016941][ T9977] =============================
[ 1304.017199][ T9977] WARNING: suspicious RCU usage
[ 1304.017470][ T9977] 6.12.0-rc7-virtme #1 Not tainted
[ 1304.017634][ T9977] -----------------------------
[ 1304.017793][ T9977] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1304.018026][ T9977] 
[ 1304.018026][ T9977] other info that might help us debug this:
[ 1304.018026][ T9977] 
[ 1304.018347][ T9977] 
[ 1304.018347][ T9977] rcu_scheduler_active = 2, debug_locks = 1
[ 1304.018600][ T9977] no locks held by smcrouted/9977.
[ 1304.018760][ T9977] 
[ 1304.018760][ T9977] stack backtrace:
[ 1304.018959][ T9977] CPU: 0 UID: 0 PID: 9977 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1304.019253][ T9977] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1304.019453][ T9977] Call Trace:
[ 1304.019576][ T9977]  <TASK>
[ 1304.019662][ T9977]  dump_stack_lvl+0xb0/0xd0
[ 1304.019837][ T9977]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1304.020030][ T9977]  ip6mr_get_table+0x142/0x190
[ 1304.020203][ T9977]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1304.020363][ T9977]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1304.020584][ T9977]  ? __lock_release+0x103/0x460
[ 1304.020739][ T9977]  ? __might_fault+0x11b/0x170
[ 1304.020903][ T9977]  ? trace_lock_acquire+0x14d/0x1f0
[ 1304.021085][ T9977]  ? __might_fault+0xc3/0x170
[ 1304.021255][ T9977]  ? lock_acquire+0x32/0xc0
[ 1304.021412][ T9977]  ? __might_fault+0xc3/0x170
[ 1304.021575][ T9977]  ? __might_fault+0x11b/0x170
[ 1304.021742][ T9977]  do_ipv6_setsockopt+0x705/0x34e0
[ 1304.021914][ T9977]  ? __lock_release+0x40/0x460
[ 1304.022090][ T9977]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1304.022247][ T9977]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1304.022408][ T9977]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1304.022566][ T9977]  ? validate_chain+0x1fe/0xae0
[ 1304.022736][ T9977]  ? is_bpf_text_address+0x67/0x120
[ 1304.022903][ T9977]  ? __pfx_validate_chain+0x10/0x10
[ 1304.023071][ T9977]  ? hlock_class+0x4e/0x130
[ 1304.023235][ T9977]  ? mark_lock+0x38/0x3e0
[ 1304.023360][ T9977]  ? __lock_acquire+0xb3f/0x1580
[ 1304.023537][ T9977]  ? find_held_lock+0x2c/0x110
[ 1304.023705][ T9977]  ? ipv6_setsockopt+0x7f/0xe0
[ 1304.023861][ T9977]  ipv6_setsockopt+0x7f/0xe0
[ 1304.024020][ T9977]  rawv6_setsockopt+0xb7/0x550
[ 1304.024202][ T9977]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1304.024364][ T9977]  ? __lock_acquire+0xb3f/0x1580
[ 1304.024528][ T9977]  ? kfree+0x2d/0x340
[ 1304.024654][ T9977]  do_sock_setsockopt+0x149/0x3a0
[ 1304.024840][ T9977]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1304.024998][ T9977]  ? __lock_release+0x103/0x460
[ 1304.025165][ T9977]  ? fd_install+0x1d1/0x5a0
[ 1304.025404][ T9977]  ? trace_lock_acquire+0x14d/0x1f0
[ 1304.025656][ T9977]  ? fdget+0x52/0x1e0
[ 1304.025843][ T9977]  __sys_setsockopt+0x104/0x1a0
[ 1304.026106][ T9977]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1304.026355][ T9977]  ? __sys_socket+0x168/0x1e0
[ 1304.026601][ T9977]  ? __pfx___sys_socket+0x10/0x10
[ 1304.026870][ T9977]  __x64_sys_setsockopt+0xbd/0x160
[ 1304.027120][ T9977]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1304.027444][ T9977]  do_syscall_64+0xc1/0x1d0
[ 1304.027708][ T9977]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1304.028025][ T9977] RIP: 0033:0x7fce39c9591e
[ 1304.028316][ T9977] 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
[ 1304.029236][ T9977] RSP: 002b:00007ffde5ae18f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1304.029634][ T9977] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fce39c9591e
[ 1304.030022][ T9977] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1304.030424][ T9977] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1304.030829][ T9977] R10: 00007ffde5ae191c R11: 0000000000000246 R12: 0000000000000000
[ 1304.031233][ T9977] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fce39d9a000
[ 1304.031664][ T9977]  </TASK>
[ 1304.035547][ T9977] veth0: entered allmulticast mode
[ 1304.036132][ T9977] veth1: entered allmulticast mode
[ 1304.036479][ T9977] veth2: entered allmulticast mode
[ 1304.036809][ T9977] veth3: entered allmulticast mode
[ 1304.037132][ T9977] veth4: entered allmulticast mode
[ 1304.037468][ T9977] veth5: entered allmulticast mode
[ 1329.839614][ T9977] veth0: left allmulticast mode
[ 1329.839933][ T9977] veth1: left allmulticast mode
[ 1329.840183][ T9977] veth2: left allmulticast mode
[ 1329.840436][ T9977] veth3: left allmulticast mode
[ 1329.840676][ T9977] veth4: left allmulticast mode
[ 1329.840910][ T9977] veth5: left allmulticast mode