[ 1288.302682][ T8144] 
[ 1288.302813][ T8144] =============================
[ 1288.302974][ T8144] WARNING: suspicious RCU usage
[ 1288.303589][ T8144] 6.12.0-virtme #1 Not tainted
[ 1288.303751][ T8144] -----------------------------
[ 1288.303909][ T8144] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1288.304147][ T8144] 
[ 1288.304147][ T8144] other info that might help us debug this:
[ 1288.304147][ T8144] 
[ 1288.304464][ T8144] 
[ 1288.304464][ T8144] rcu_scheduler_active = 2, debug_locks = 1
[ 1288.304692][ T8144] no locks held by smcrouted/8144.
[ 1288.304855][ T8144] 
[ 1288.304855][ T8144] stack backtrace:
[ 1288.305113][ T8144] CPU: 0 UID: 0 PID: 8144 Comm: smcrouted Not tainted 6.12.0-virtme #1
[ 1288.305349][ T8144] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1288.305556][ T8144] Call Trace:
[ 1288.305692][ T8144]  <TASK>
[ 1288.305776][ T8144]  dump_stack_lvl+0xb0/0xd0
[ 1288.305940][ T8144]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1288.306104][ T8144]  ip6mr_get_table+0x142/0x190
[ 1288.306266][ T8144]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1288.306431][ T8144]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1288.306655][ T8144]  ? __lock_release+0x103/0x460
[ 1288.306809][ T8144]  ? __might_fault+0x11b/0x170
[ 1288.306982][ T8144]  ? trace_lock_acquire+0x14d/0x1f0
[ 1288.307139][ T8144]  ? __might_fault+0xc3/0x170
[ 1288.307297][ T8144]  ? lock_acquire+0x32/0xc0
[ 1288.307454][ T8144]  ? __might_fault+0xc3/0x170
[ 1288.307627][ T8144]  ? __might_fault+0x11b/0x170
[ 1288.307798][ T8144]  do_ipv6_setsockopt+0x705/0x34e0
[ 1288.307963][ T8144]  ? validate_chain+0x160/0xae0
[ 1288.308122][ T8144]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1288.308288][ T8144]  ? __pfx_validate_chain+0x10/0x10
[ 1288.308445][ T8144]  ? hlock_class+0x4e/0x130
[ 1288.308600][ T8144]  ? mark_lock+0x38/0x3e0
[ 1288.308737][ T8144]  ? __lock_acquire+0xb9a/0x1680
[ 1288.308924][ T8144]  ? find_held_lock+0x2c/0x110
[ 1288.309092][ T8144]  ? __lock_release+0x103/0x460
[ 1288.309254][ T8144]  ? __create_object+0x5e/0xb0
[ 1288.309416][ T8144]  ? __pfx___lock_release+0x10/0x10
[ 1288.309576][ T8144]  ? __pfx_validate_chain+0x10/0x10
[ 1288.309729][ T8144]  ? hlock_class+0x4e/0x130
[ 1288.309905][ T8144]  ? mark_lock+0x38/0x3e0
[ 1288.310035][ T8144]  ? ipv6_setsockopt+0x7f/0xe0
[ 1288.310203][ T8144]  ipv6_setsockopt+0x7f/0xe0
[ 1288.310369][ T8144]  rawv6_setsockopt+0xb7/0x550
[ 1288.310537][ T8144]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1288.310699][ T8144]  ? find_held_lock+0x2c/0x110
[ 1288.310867][ T8144]  ? kfree+0x2d/0x340
[ 1288.310993][ T8144]  ? __lock_release+0x103/0x460
[ 1288.311157][ T8144]  ? fd_install+0x1d1/0x5a0
[ 1288.311328][ T8144]  do_sock_setsockopt+0x149/0x3a0
[ 1288.311496][ T8144]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1288.311675][ T8144]  __sys_setsockopt+0xec/0x160
[ 1288.311842][ T8144]  __x64_sys_setsockopt+0xbd/0x160
[ 1288.311999][ T8144]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1288.312201][ T8144]  do_syscall_64+0xc1/0x1d0
[ 1288.312371][ T8144]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1288.312568][ T8144] RIP: 0033:0x7f09c7b1a91e
[ 1288.312731][ T8144] 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
[ 1288.313265][ T8144] RSP: 002b:00007fff1f17ab28 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1288.313504][ T8144] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f09c7b1a91e
[ 1288.313739][ T8144] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1288.313975][ T8144] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1288.314216][ T8144] R10: 00007fff1f17ab4c R11: 0000000000000246 R12: 0000000000000000
[ 1288.314464][ T8144] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f09c7c1f000
[ 1288.314722][ T8144]  </TASK>
[ 1288.318878][ T8144] veth0: entered allmulticast mode
[ 1288.319436][ T8144] veth1: entered allmulticast mode
[ 1288.319810][ T8144] veth2: entered allmulticast mode
[ 1288.320164][ T8144] veth3: entered allmulticast mode
[ 1306.131945][ T8144] veth0: left allmulticast mode
[ 1306.132308][ T8144] veth1: left allmulticast mode
[ 1306.132558][ T8144] veth2: left allmulticast mode
[ 1306.132820][ T8144] veth3: left allmulticast mode