[ 1248.303417][T13517] 
[ 1248.303570][T13517] =============================
[ 1248.303736][T13517] WARNING: suspicious RCU usage
[ 1248.303901][T13517] 6.12.0-virtme #1 Not tainted
[ 1248.304059][T13517] -----------------------------
[ 1248.304563][T13517] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1248.304801][T13517] 
[ 1248.304801][T13517] other info that might help us debug this:
[ 1248.304801][T13517] 
[ 1248.305097][T13517] 
[ 1248.305097][T13517] rcu_scheduler_active = 2, debug_locks = 1
[ 1248.305359][T13517] no locks held by smcrouted/13517.
[ 1248.305599][T13517] 
[ 1248.305599][T13517] stack backtrace:
[ 1248.305793][T13517] CPU: 3 UID: 0 PID: 13517 Comm: smcrouted Not tainted 6.12.0-virtme #1
[ 1248.306027][T13517] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1248.306220][T13517] Call Trace:
[ 1248.306355][T13517]  <TASK>
[ 1248.306440][T13517]  dump_stack_lvl+0xb0/0xd0
[ 1248.306616][T13517]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1248.306779][T13517]  ip6mr_get_table+0x142/0x190
[ 1248.306938][T13517]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1248.307112][T13517]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1248.307314][T13517]  ? __lock_release+0x103/0x460
[ 1248.307477][T13517]  ? __might_fault+0x11b/0x170
[ 1248.307636][T13517]  ? trace_lock_acquire+0x14d/0x1f0
[ 1248.307792][T13517]  ? __might_fault+0xc3/0x170
[ 1248.307960][T13517]  ? lock_acquire+0x32/0xc0
[ 1248.308119][T13517]  ? __might_fault+0xc3/0x170
[ 1248.308276][T13517]  ? __might_fault+0x11b/0x170
[ 1248.308491][T13517]  do_ipv6_setsockopt+0x705/0x34e0
[ 1248.308673][T13517]  ? validate_chain+0x160/0xae0
[ 1248.308846][T13517]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1248.309018][T13517]  ? __pfx_validate_chain+0x10/0x10
[ 1248.309193][T13517]  ? hlock_class+0x4e/0x130
[ 1248.309363][T13517]  ? mark_lock+0x38/0x3e0
[ 1248.309496][T13517]  ? __lock_acquire+0xb9a/0x1680
[ 1248.309677][T13517]  ? find_held_lock+0x2c/0x110
[ 1248.309851][T13517]  ? __lock_release+0x103/0x460
[ 1248.310020][T13517]  ? __create_object+0x5e/0xb0
[ 1248.310191][T13517]  ? __pfx___lock_release+0x10/0x10
[ 1248.310359][T13517]  ? __pfx_validate_chain+0x10/0x10
[ 1248.310532][T13517]  ? hlock_class+0x4e/0x130
[ 1248.310710][T13517]  ? mark_lock+0x38/0x3e0
[ 1248.310849][T13517]  ? ipv6_setsockopt+0x7f/0xe0
[ 1248.311019][T13517]  ipv6_setsockopt+0x7f/0xe0
[ 1248.311195][T13517]  rawv6_setsockopt+0xb7/0x550
[ 1248.311369][T13517]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1248.311544][T13517]  ? find_held_lock+0x2c/0x110
[ 1248.311714][T13517]  ? kfree+0x2d/0x340
[ 1248.311856][T13517]  ? __lock_release+0x103/0x460
[ 1248.312028][T13517]  ? fd_install+0x1d1/0x5a0
[ 1248.312204][T13517]  do_sock_setsockopt+0x149/0x3a0
[ 1248.312381][T13517]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1248.312568][T13517]  __sys_setsockopt+0xec/0x160
[ 1248.312745][T13517]  __x64_sys_setsockopt+0xbd/0x160
[ 1248.312913][T13517]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1248.313130][T13517]  do_syscall_64+0xc1/0x1d0
[ 1248.313308][T13517]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1248.313530][T13517] RIP: 0033:0x7fd3785d191e
[ 1248.313715][T13517] 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
[ 1248.314328][T13517] RSP: 002b:00007ffe517ca2b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1248.314586][T13517] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd3785d191e
[ 1248.314841][T13517] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1248.315096][T13517] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1248.315358][T13517] R10: 00007ffe517ca2dc R11: 0000000000000246 R12: 0000000000000000
[ 1248.315615][T13517] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fd3786d6000
[ 1248.315881][T13517]  </TASK>
[ 1248.322363][T13517] veth0: entered allmulticast mode
[ 1248.322963][T13517] veth1: entered allmulticast mode
[ 1248.323340][T13517] veth2: entered allmulticast mode
[ 1248.323680][T13517] veth3: entered allmulticast mode
[ 1248.324007][T13517] veth4: entered allmulticast mode
[ 1248.324595][T13517] veth5: entered allmulticast mode
[ 1276.276063][T13517] veth0: left allmulticast mode
[ 1276.276488][T13517] veth1: left allmulticast mode
[ 1276.276774][T13517] veth2: left allmulticast mode
[ 1276.277066][T13517] veth3: left allmulticast mode
[ 1276.277358][T13517] veth4: left allmulticast mode
[ 1276.277638][T13517] veth5: left allmulticast mode