[ 1307.942118][ T7520] 
[ 1307.942296][ T7520] =============================
[ 1307.942604][ T7520] WARNING: suspicious RCU usage
[ 1307.942887][ T7520] 6.12.0-virtme #1 Not tainted
[ 1307.943091][ T7520] -----------------------------
[ 1307.943273][ T7520] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1307.943663][ T7520] 
[ 1307.943663][ T7520] other info that might help us debug this:
[ 1307.943663][ T7520] 
[ 1307.944021][ T7520] 
[ 1307.944021][ T7520] rcu_scheduler_active = 2, debug_locks = 1
[ 1307.944288][ T7520] no locks held by smcrouted/7520.
[ 1307.944592][ T7520] 
[ 1307.944592][ T7520] stack backtrace:
[ 1307.944817][ T7520] CPU: 0 UID: 0 PID: 7520 Comm: smcrouted Not tainted 6.12.0-virtme #1
[ 1307.945084][ T7520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1307.945314][ T7520] Call Trace:
[ 1307.945455][ T7520]  <TASK>
[ 1307.945558][ T7520]  dump_stack_lvl+0xb0/0xd0
[ 1307.945744][ T7520]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1307.945925][ T7520]  ip6mr_get_table+0x142/0x190
[ 1307.946105][ T7520]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1307.946286][ T7520]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1307.946521][ T7520]  ? __lock_release+0x103/0x460
[ 1307.946696][ T7520]  ? __might_fault+0x11b/0x170
[ 1307.946879][ T7520]  ? trace_lock_acquire+0x14d/0x1f0
[ 1307.947075][ T7520]  ? __might_fault+0xc3/0x170
[ 1307.947252][ T7520]  ? lock_acquire+0x32/0xc0
[ 1307.947433][ T7520]  ? __might_fault+0xc3/0x170
[ 1307.947621][ T7520]  ? __might_fault+0x11b/0x170
[ 1307.947804][ T7520]  do_ipv6_setsockopt+0x705/0x34e0
[ 1307.947988][ T7520]  ? validate_chain+0x130/0xae0
[ 1307.948165][ T7520]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1307.948340][ T7520]  ? __pfx_validate_chain+0x10/0x10
[ 1307.948535][ T7520]  ? hlock_class+0x4e/0x130
[ 1307.948721][ T7520]  ? mark_lock+0x38/0x3e0
[ 1307.948864][ T7520]  ? __lock_acquire+0xb9a/0x1680
[ 1307.949057][ T7520]  ? find_held_lock+0x2c/0x110
[ 1307.949236][ T7520]  ? __lock_release+0x103/0x460
[ 1307.949418][ T7520]  ? __create_object+0x5e/0xb0
[ 1307.949608][ T7520]  ? __pfx___lock_release+0x10/0x10
[ 1307.949787][ T7520]  ? __pfx_validate_chain+0x10/0x10
[ 1307.949966][ T7520]  ? hlock_class+0x4e/0x130
[ 1307.950150][ T7520]  ? mark_lock+0x38/0x3e0
[ 1307.950291][ T7520]  ? ipv6_setsockopt+0x7f/0xe0
[ 1307.950462][ T7520]  ipv6_setsockopt+0x7f/0xe0
[ 1307.950656][ T7520]  rawv6_setsockopt+0xb7/0x550
[ 1307.950869][ T7520]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1307.951128][ T7520]  ? find_held_lock+0x2c/0x110
[ 1307.951394][ T7520]  ? kfree+0x2d/0x340
[ 1307.951600][ T7520]  ? __lock_release+0x103/0x460
[ 1307.951866][ T7520]  ? fd_install+0x1d1/0x5a0
[ 1307.952155][ T7520]  do_sock_setsockopt+0x149/0x3a0
[ 1307.952439][ T7520]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1307.952723][ T7520]  __sys_setsockopt+0xec/0x160
[ 1307.952994][ T7520]  __x64_sys_setsockopt+0xbd/0x160
[ 1307.953260][ T7520]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1307.953603][ T7520]  do_syscall_64+0xc1/0x1d0
[ 1307.953879][ T7520]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1307.954207][ T7520] RIP: 0033:0x7fb3ec5d991e
[ 1307.954508][ T7520] 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
[ 1307.955434][ T7520] RSP: 002b:00007fffaf218938 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1307.955831][ T7520] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb3ec5d991e
[ 1307.956238][ T7520] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1307.956653][ T7520] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1307.957056][ T7520] R10: 00007fffaf21895c R11: 0000000000000246 R12: 0000000000000000
[ 1307.957465][ T7520] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fb3ec6de000
[ 1307.957898][ T7520]  </TASK>
[ 1307.974516][ T7520] veth0: entered allmulticast mode
[ 1307.975178][ T7520] veth1: entered allmulticast mode
[ 1307.975557][ T7520] veth2: entered allmulticast mode
[ 1307.975889][ T7520] veth3: entered allmulticast mode
[ 1307.976221][ T7520] veth4: entered allmulticast mode
[ 1307.976577][ T7520] veth5: entered allmulticast mode
[ 1333.207813][ T7520] veth0: left allmulticast mode
[ 1333.208125][ T7520] veth1: left allmulticast mode
[ 1333.208375][ T7520] veth2: left allmulticast mode
[ 1333.208654][ T7520] veth3: left allmulticast mode
[ 1333.208893][ T7520] veth4: left allmulticast mode
[ 1333.209123][ T7520] veth5: left allmulticast mode