[ 1251.350693][T13361] 
[ 1251.350843][T13361] =============================
[ 1251.351015][T13361] WARNING: suspicious RCU usage
[ 1251.351178][T13361] 6.12.0-rc7-virtme #1 Not tainted
[ 1251.351357][T13361] -----------------------------
[ 1251.351519][T13361] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1251.351756][T13361] 
[ 1251.351756][T13361] other info that might help us debug this:
[ 1251.351756][T13361] 
[ 1251.352079][T13361] 
[ 1251.352079][T13361] rcu_scheduler_active = 2, debug_locks = 1
[ 1251.352334][T13361] no locks held by smcrouted/13361.
[ 1251.352507][T13361] 
[ 1251.352507][T13361] stack backtrace:
[ 1251.352714][T13361] CPU: 0 UID: 0 PID: 13361 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1251.352996][T13361] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1251.353217][T13361] Call Trace:
[ 1251.353364][T13361]  <TASK>
[ 1251.353456][T13361]  dump_stack_lvl+0xb0/0xd0
[ 1251.353632][T13361]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1251.353800][T13361]  ip6mr_get_table+0x142/0x190
[ 1251.353971][T13361]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1251.354142][T13361]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1251.354347][T13361]  ? __lock_release+0x103/0x460
[ 1251.354508][T13361]  ? __might_fault+0x11b/0x170
[ 1251.354668][T13361]  ? trace_lock_acquire+0x14d/0x1f0
[ 1251.354842][T13361]  ? __might_fault+0xc3/0x170
[ 1251.355003][T13361]  ? lock_acquire+0x32/0xc0
[ 1251.355159][T13361]  ? __might_fault+0xc3/0x170
[ 1251.355326][T13361]  ? __might_fault+0x11b/0x170
[ 1251.355501][T13361]  do_ipv6_setsockopt+0x705/0x34e0
[ 1251.355662][T13361]  ? __lock_release+0x10/0x460
[ 1251.355821][T13361]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1251.355978][T13361]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1251.356144][T13361]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1251.356303][T13361]  ? validate_chain+0x1fe/0xae0
[ 1251.356467][T13361]  ? is_bpf_text_address+0x67/0x120
[ 1251.356634][T13361]  ? __pfx_validate_chain+0x10/0x10
[ 1251.356795][T13361]  ? hlock_class+0x4e/0x130
[ 1251.356957][T13361]  ? mark_lock+0x38/0x3e0
[ 1251.357096][T13361]  ? __lock_acquire+0xb3f/0x1580
[ 1251.357271][T13361]  ? find_held_lock+0x2c/0x110
[ 1251.357443][T13361]  ? ipv6_setsockopt+0x7f/0xe0
[ 1251.357608][T13361]  ipv6_setsockopt+0x7f/0xe0
[ 1251.357768][T13361]  rawv6_setsockopt+0xb7/0x550
[ 1251.357932][T13361]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1251.358093][T13361]  ? __lock_acquire+0xb3f/0x1580
[ 1251.358249][T13361]  ? kfree+0x2d/0x340
[ 1251.358377][T13361]  do_sock_setsockopt+0x149/0x3a0
[ 1251.358542][T13361]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1251.358701][T13361]  ? __lock_release+0x103/0x460
[ 1251.358859][T13361]  ? fd_install+0x1d1/0x5a0
[ 1251.359021][T13361]  ? trace_lock_acquire+0x14d/0x1f0
[ 1251.359180][T13361]  ? fdget+0x52/0x1e0
[ 1251.359306][T13361]  __sys_setsockopt+0x104/0x1a0
[ 1251.359476][T13361]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1251.359630][T13361]  ? __sys_socket+0x168/0x1e0
[ 1251.359790][T13361]  ? __pfx___sys_socket+0x10/0x10
[ 1251.359946][T13361]  ? do_user_addr_fault+0x374/0xe30
[ 1251.360112][T13361]  __x64_sys_setsockopt+0xbd/0x160
[ 1251.360280][T13361]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1251.360484][T13361]  do_syscall_64+0xc1/0x1d0
[ 1251.360642][T13361]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1251.360844][T13361] RIP: 0033:0x7f97dd28291e
[ 1251.361013][T13361] 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
[ 1251.361577][T13361] RSP: 002b:00007ffe1cec76f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1251.361813][T13361] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f97dd28291e
[ 1251.362062][T13361] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1251.362309][T13361] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1251.362555][T13361] R10: 00007ffe1cec771c R11: 0000000000000246 R12: 0000000000000000
[ 1251.362791][T13361] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f97dd387000
[ 1251.363067][T13361]  </TASK>
[ 1251.376764][T13361] veth0: entered allmulticast mode
[ 1251.377423][T13361] veth1: entered allmulticast mode
[ 1251.377758][T13361] veth2: entered allmulticast mode
[ 1251.378081][T13361] veth3: entered allmulticast mode
[ 1251.378417][T13361] veth4: entered allmulticast mode
[ 1251.378732][T13361] veth5: entered allmulticast mode
[ 1278.558757][T13361] veth0: left allmulticast mode
[ 1278.559303][T13361] veth1: left allmulticast mode
[ 1278.559714][T13361] veth2: left allmulticast mode
[ 1278.560126][T13361] veth3: left allmulticast mode
[ 1278.560568][T13361] veth4: left allmulticast mode
[ 1278.561001][T13361] veth5: left allmulticast mode