[ 1302.268425][T14566] 
[ 1302.268565][T14566] =============================
[ 1302.268733][T14566] WARNING: suspicious RCU usage
[ 1302.268890][T14566] 6.12.0-rc6-virtme #1 Not tainted
[ 1302.269088][T14566] -----------------------------
[ 1302.269257][T14566] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1302.270259][T14566] 
[ 1302.270259][T14566] other info that might help us debug this:
[ 1302.270259][T14566] 
[ 1302.270584][T14566] 
[ 1302.270584][T14566] rcu_scheduler_active = 2, debug_locks = 1
[ 1302.270825][T14566] no locks held by smcrouted/14566.
[ 1302.271012][T14566] 
[ 1302.271012][T14566] stack backtrace:
[ 1302.271221][T14566] CPU: 3 UID: 0 PID: 14566 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1302.271504][T14566] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1302.271700][T14566] Call Trace:
[ 1302.271823][T14566]  <TASK>
[ 1302.271910][T14566]  dump_stack_lvl+0xb0/0xd0
[ 1302.272106][T14566]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1302.272272][T14566]  ip6mr_get_table+0x142/0x190
[ 1302.272466][T14566]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1302.272643][T14566]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1302.272850][T14566]  ? __lock_release+0x103/0x460
[ 1302.273026][T14566]  ? __might_fault+0x11b/0x170
[ 1302.273188][T14566]  ? trace_lock_acquire+0x14d/0x1f0
[ 1302.273359][T14566]  ? __might_fault+0xc3/0x170
[ 1302.273543][T14566]  ? lock_acquire+0x32/0xc0
[ 1302.273790][T14566]  ? __might_fault+0xc3/0x170
[ 1302.273962][T14566]  ? __might_fault+0x11b/0x170
[ 1302.274128][T14566]  do_ipv6_setsockopt+0x705/0x34e0
[ 1302.274299][T14566]  ? __lock_release+0xe0/0x460
[ 1302.274461][T14566]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1302.274624][T14566]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1302.274794][T14566]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1302.274971][T14566]  ? validate_chain+0x1fe/0xae0
[ 1302.275141][T14566]  ? is_bpf_text_address+0x67/0x120
[ 1302.275312][T14566]  ? __pfx_validate_chain+0x10/0x10
[ 1302.275473][T14566]  ? hlock_class+0x4e/0x130
[ 1302.275632][T14566]  ? mark_lock+0x38/0x3e0
[ 1302.275757][T14566]  ? __lock_acquire+0xb3f/0x1580
[ 1302.275915][T14566]  ? queued_spin_lock_slowpath+0xee/0x970
[ 1302.276092][T14566]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[ 1302.276288][T14566]  ? find_held_lock+0x2c/0x110
[ 1302.276455][T14566]  ? ipv6_setsockopt+0x7f/0xe0
[ 1302.276617][T14566]  ipv6_setsockopt+0x7f/0xe0
[ 1302.276781][T14566]  rawv6_setsockopt+0xb7/0x550
[ 1302.276954][T14566]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1302.277115][T14566]  ? __lock_acquire+0xb3f/0x1580
[ 1302.277281][T14566]  ? kfree+0x2d/0x340
[ 1302.277422][T14566]  do_sock_setsockopt+0x149/0x3a0
[ 1302.277583][T14566]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1302.277758][T14566]  ? __lock_release+0x103/0x460
[ 1302.277939][T14566]  ? fd_install+0x1d1/0x5a0
[ 1302.278128][T14566]  ? trace_lock_acquire+0x14d/0x1f0
[ 1302.278293][T14566]  ? fdget+0x52/0x1e0
[ 1302.278418][T14566]  __sys_setsockopt+0x104/0x1a0
[ 1302.278582][T14566]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1302.278742][T14566]  ? __sys_socket+0x168/0x1e0
[ 1302.278916][T14566]  ? __pfx___sys_socket+0x10/0x10
[ 1302.279089][T14566]  ? do_user_addr_fault+0x374/0xe30
[ 1302.279254][T14566]  __x64_sys_setsockopt+0xbd/0x160
[ 1302.279413][T14566]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1302.279614][T14566]  do_syscall_64+0xc1/0x1d0
[ 1302.279774][T14566]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1302.279985][T14566] RIP: 0033:0x7f9d673cd91e
[ 1302.280158][T14566] 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
[ 1302.280743][T14566] RSP: 002b:00007ffeae861c28 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1302.280998][T14566] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9d673cd91e
[ 1302.281242][T14566] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1302.281487][T14566] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1302.281725][T14566] R10: 00007ffeae861c4c R11: 0000000000000246 R12: 0000000000000000
[ 1302.281983][T14566] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f9d674d2000
[ 1302.282237][T14566]  </TASK>
[ 1302.285687][T14566] veth0: entered allmulticast mode
[ 1302.286261][T14566] veth1: entered allmulticast mode
[ 1302.286603][T14566] veth2: entered allmulticast mode
[ 1302.286922][T14566] veth3: entered allmulticast mode
[ 1321.406156][T14566] veth0: left allmulticast mode
[ 1321.406485][T14566] veth1: left allmulticast mode
[ 1321.406724][T14566] veth2: left allmulticast mode
[ 1321.406967][T14566] veth3: left allmulticast mode