[ 1233.084178][ T4014] 
[ 1233.084418][ T4014] =============================
[ 1233.084700][ T4014] WARNING: suspicious RCU usage
[ 1233.084979][ T4014] 6.12.0-rc6-virtme #1 Not tainted
[ 1233.085282][ T4014] -----------------------------
[ 1233.085874][ T4014] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1233.086299][ T4014] 
[ 1233.086299][ T4014] other info that might help us debug this:
[ 1233.086299][ T4014] 
[ 1233.086850][ T4014] 
[ 1233.086850][ T4014] rcu_scheduler_active = 2, debug_locks = 1
[ 1233.087293][ T4014] no locks held by smcrouted/4014.
[ 1233.087595][ T4014] 
[ 1233.087595][ T4014] stack backtrace:
[ 1233.087935][ T4014] CPU: 2 UID: 0 PID: 4014 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1233.088373][ T4014] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1233.088578][ T4014] Call Trace:
[ 1233.088708][ T4014]  <TASK>
[ 1233.088798][ T4014]  dump_stack_lvl+0xb0/0xd0
[ 1233.088984][ T4014]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1233.089163][ T4014]  ip6mr_get_table+0x142/0x190
[ 1233.089339][ T4014]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1233.089504][ T4014]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1233.089711][ T4014]  ? __lock_release+0x103/0x460
[ 1233.089870][ T4014]  ? __might_fault+0x11b/0x170
[ 1233.090039][ T4014]  ? trace_lock_acquire+0x14d/0x1f0
[ 1233.090228][ T4014]  ? __might_fault+0xc3/0x170
[ 1233.090391][ T4014]  ? lock_acquire+0x32/0xc0
[ 1233.090558][ T4014]  ? __might_fault+0xc3/0x170
[ 1233.090728][ T4014]  ? __might_fault+0x11b/0x170
[ 1233.090897][ T4014]  do_ipv6_setsockopt+0x705/0x34e0
[ 1233.091062][ T4014]  ? __lock_release+0xe0/0x460
[ 1233.091239][ T4014]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1233.091412][ T4014]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1233.091586][ T4014]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1233.091748][ T4014]  ? validate_chain+0x1fe/0xae0
[ 1233.091913][ T4014]  ? is_bpf_text_address+0x67/0x120
[ 1233.092083][ T4014]  ? __pfx_validate_chain+0x10/0x10
[ 1233.092320][ T4014]  ? hlock_class+0x4e/0x130
[ 1233.092579][ T4014]  ? mark_lock+0x38/0x3e0
[ 1233.092790][ T4014]  ? __lock_acquire+0xb3f/0x1580
[ 1233.093068][ T4014]  ? find_held_lock+0x2c/0x110
[ 1233.093353][ T4014]  ? ipv6_setsockopt+0x7f/0xe0
[ 1233.093556][ T4014]  ipv6_setsockopt+0x7f/0xe0
[ 1233.093752][ T4014]  rawv6_setsockopt+0xb7/0x550
[ 1233.093922][ T4014]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1233.094087][ T4014]  ? __lock_acquire+0xb3f/0x1580
[ 1233.094268][ T4014]  ? kfree+0x2d/0x340
[ 1233.094402][ T4014]  do_sock_setsockopt+0x149/0x3a0
[ 1233.094567][ T4014]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1233.094735][ T4014]  ? __lock_release+0x103/0x460
[ 1233.094895][ T4014]  ? fd_install+0x1d1/0x5a0
[ 1233.095063][ T4014]  ? trace_lock_acquire+0x14d/0x1f0
[ 1233.095238][ T4014]  ? fdget+0x52/0x1e0
[ 1233.095368][ T4014]  __sys_setsockopt+0x104/0x1a0
[ 1233.095532][ T4014]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1233.095703][ T4014]  ? __sys_socket+0x168/0x1e0
[ 1233.095883][ T4014]  ? __pfx___sys_socket+0x10/0x10
[ 1233.096053][ T4014]  ? do_user_addr_fault+0x374/0xe30
[ 1233.096238][ T4014]  __x64_sys_setsockopt+0xbd/0x160
[ 1233.096400][ T4014]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1233.096603][ T4014]  do_syscall_64+0xc1/0x1d0
[ 1233.096777][ T4014]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1233.096980][ T4014] RIP: 0033:0x7fb293e2a91e
[ 1233.097158][ T4014] 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
[ 1233.097731][ T4014] RSP: 002b:00007ffc171151b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1233.097993][ T4014] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb293e2a91e
[ 1233.098255][ T4014] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1233.098499][ T4014] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000002734a010
[ 1233.098995][ T4014] R10: 00007ffc171151dc R11: 0000000000000246 R12: 0000000000000000
[ 1233.099323][ T4014] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fb293f2f000
[ 1233.099777][ T4014]  </TASK>
[ 1233.102629][ T4014] veth0: entered allmulticast mode
[ 1233.103244][ T4014] veth1: entered allmulticast mode
[ 1233.103617][ T4014] veth2: entered allmulticast mode
[ 1233.103971][ T4014] veth3: entered allmulticast mode
[ 1233.104364][ T4014] veth4: entered allmulticast mode
[ 1233.104726][ T4014] veth5: entered allmulticast mode
[ 1244.233499][ T4100] GACT probability NOT on
[ 1260.973480][ T4014] veth0: left allmulticast mode
[ 1260.973812][ T4014] veth1: left allmulticast mode
[ 1260.974054][ T4014] veth2: left allmulticast mode
[ 1260.974306][ T4014] veth3: left allmulticast mode
[ 1260.974537][ T4014] veth4: left allmulticast mode
[ 1260.974764][ T4014] veth5: left allmulticast mode