[ 1294.876631][ T9622] 
[ 1294.876762][ T9622] =============================
[ 1294.876979][ T9622] WARNING: suspicious RCU usage
[ 1294.877248][ T9622] 6.12.0-rc7-virtme #1 Not tainted
[ 1294.877417][ T9622] -----------------------------
[ 1294.877575][ T9622] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1294.877810][ T9622] 
[ 1294.877810][ T9622] other info that might help us debug this:
[ 1294.877810][ T9622] 
[ 1294.878136][ T9622] 
[ 1294.878136][ T9622] rcu_scheduler_active = 2, debug_locks = 1
[ 1294.878373][ T9622] no locks held by smcrouted/9622.
[ 1294.878531][ T9622] 
[ 1294.878531][ T9622] stack backtrace:
[ 1294.878723][ T9622] CPU: 3 UID: 0 PID: 9622 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1294.878995][ T9622] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1294.879194][ T9622] Call Trace:
[ 1294.879321][ T9622]  <TASK>
[ 1294.879406][ T9622]  dump_stack_lvl+0xb0/0xd0
[ 1294.879574][ T9622]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1294.879736][ T9622]  ip6mr_get_table+0x142/0x190
[ 1294.879903][ T9622]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1294.880067][ T9622]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1294.880266][ T9622]  ? __lock_release+0x103/0x460
[ 1294.880421][ T9622]  ? __might_fault+0x11b/0x170
[ 1294.880589][ T9622]  ? trace_lock_acquire+0x14d/0x1f0
[ 1294.880753][ T9622]  ? __might_fault+0xc3/0x170
[ 1294.880929][ T9622]  ? lock_acquire+0x32/0xc0
[ 1294.881087][ T9622]  ? __might_fault+0xc3/0x170
[ 1294.881253][ T9622]  ? __might_fault+0x11b/0x170
[ 1294.881426][ T9622]  do_ipv6_setsockopt+0x705/0x34e0
[ 1294.881585][ T9622]  ? __lock_release+0x10/0x460
[ 1294.881740][ T9622]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1294.881894][ T9622]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1294.882056][ T9622]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1294.882214][ T9622]  ? validate_chain+0x1fe/0xae0
[ 1294.882376][ T9622]  ? is_bpf_text_address+0x67/0x120
[ 1294.882540][ T9622]  ? __pfx_validate_chain+0x10/0x10
[ 1294.882704][ T9622]  ? hlock_class+0x4e/0x130
[ 1294.882863][ T9622]  ? mark_lock+0x38/0x3e0
[ 1294.882989][ T9622]  ? __lock_acquire+0xb3f/0x1580
[ 1294.883163][ T9622]  ? find_held_lock+0x2c/0x110
[ 1294.883339][ T9622]  ? ipv6_setsockopt+0x7f/0xe0
[ 1294.883497][ T9622]  ipv6_setsockopt+0x7f/0xe0
[ 1294.883658][ T9622]  rawv6_setsockopt+0xb7/0x550
[ 1294.883824][ T9622]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1294.883982][ T9622]  ? __lock_acquire+0xb3f/0x1580
[ 1294.884148][ T9622]  ? kfree+0x2d/0x340
[ 1294.884278][ T9622]  do_sock_setsockopt+0x149/0x3a0
[ 1294.884438][ T9622]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1294.884602][ T9622]  ? __lock_release+0x103/0x460
[ 1294.884762][ T9622]  ? fd_install+0x1d1/0x5a0
[ 1294.884927][ T9622]  ? trace_lock_acquire+0x14d/0x1f0
[ 1294.885093][ T9622]  ? fdget+0x52/0x1e0
[ 1294.885219][ T9622]  __sys_setsockopt+0x104/0x1a0
[ 1294.885382][ T9622]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1294.885542][ T9622]  ? __sys_socket+0x168/0x1e0
[ 1294.885703][ T9622]  ? __pfx___sys_socket+0x10/0x10
[ 1294.885866][ T9622]  ? do_user_addr_fault+0x374/0xe30
[ 1294.886027][ T9622]  __x64_sys_setsockopt+0xbd/0x160
[ 1294.886187][ T9622]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1294.886390][ T9622]  do_syscall_64+0xc1/0x1d0
[ 1294.886551][ T9622]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1294.886747][ T9622] RIP: 0033:0x7f884ab2191e
[ 1294.886916][ T9622] 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
[ 1294.887466][ T9622] RSP: 002b:00007ffc850853c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1294.887709][ T9622] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f884ab2191e
[ 1294.887945][ T9622] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1294.888185][ T9622] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1294.888421][ T9622] R10: 00007ffc850853ec R11: 0000000000000246 R12: 0000000000000000
[ 1294.888661][ T9622] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f884ac26000
[ 1294.888910][ T9622]  </TASK>
[ 1294.891762][ T9622] veth0: entered allmulticast mode
[ 1294.893052][ T9622] veth1: entered allmulticast mode
[ 1294.895784][ T9622] veth2: entered allmulticast mode
[ 1294.896123][ T9622] veth3: entered allmulticast mode
[ 1313.583427][ T9622] veth0: left allmulticast mode
[ 1313.583758][ T9622] veth1: left allmulticast mode
[ 1313.584010][ T9622] veth2: left allmulticast mode
[ 1313.584448][ T9622] veth3: left allmulticast mode