[ 1273.888704][T13384] 
[ 1273.888870][T13384] =============================
[ 1273.889039][T13384] WARNING: suspicious RCU usage
[ 1273.889618][T13384] 6.12.0-rc6-virtme #1 Not tainted
[ 1273.889790][T13384] -----------------------------
[ 1273.889949][T13384] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1273.890217][T13384] 
[ 1273.890217][T13384] other info that might help us debug this:
[ 1273.890217][T13384] 
[ 1273.890570][T13384] 
[ 1273.890570][T13384] rcu_scheduler_active = 2, debug_locks = 1
[ 1273.890824][T13384] no locks held by smcrouted/13384.
[ 1273.890985][T13384] 
[ 1273.890985][T13384] stack backtrace:
[ 1273.891235][T13384] CPU: 3 UID: 0 PID: 13384 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1273.891543][T13384] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1273.891774][T13384] Call Trace:
[ 1273.891904][T13384]  <TASK>
[ 1273.891995][T13384]  dump_stack_lvl+0xb0/0xd0
[ 1273.892178][T13384]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1273.892365][T13384]  ip6mr_get_table+0x142/0x190
[ 1273.892539][T13384]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1273.892709][T13384]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1273.892937][T13384]  ? __lock_release+0x103/0x460
[ 1273.893103][T13384]  ? __might_fault+0x11b/0x170
[ 1273.893293][T13384]  ? trace_lock_acquire+0x14d/0x1f0
[ 1273.893473][T13384]  ? __might_fault+0xc3/0x170
[ 1273.893653][T13384]  ? lock_acquire+0x32/0xc0
[ 1273.893820][T13384]  ? __might_fault+0xc3/0x170
[ 1273.893991][T13384]  ? __might_fault+0x11b/0x170
[ 1273.894180][T13384]  do_ipv6_setsockopt+0x705/0x34e0
[ 1273.894359][T13384]  ? __lock_release+0xe0/0x460
[ 1273.894553][T13384]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1273.894717][T13384]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1273.894883][T13384]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1273.895048][T13384]  ? validate_chain+0x1fe/0xae0
[ 1273.895213][T13384]  ? is_bpf_text_address+0x67/0x120
[ 1273.895390][T13384]  ? __pfx_validate_chain+0x10/0x10
[ 1273.895561][T13384]  ? hlock_class+0x4e/0x130
[ 1273.895727][T13384]  ? mark_lock+0x38/0x3e0
[ 1273.895885][T13384]  ? __lock_acquire+0xb3f/0x1580
[ 1273.896053][T13384]  ? find_held_lock+0x2c/0x110
[ 1273.896232][T13384]  ? ipv6_setsockopt+0x7f/0xe0
[ 1273.896399][T13384]  ipv6_setsockopt+0x7f/0xe0
[ 1273.896584][T13384]  rawv6_setsockopt+0xb7/0x550
[ 1273.896764][T13384]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1273.896935][T13384]  ? __lock_acquire+0xb3f/0x1580
[ 1273.897114][T13384]  ? kfree+0x2d/0x340
[ 1273.897266][T13384]  do_sock_setsockopt+0x149/0x3a0
[ 1273.897439][T13384]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1273.897604][T13384]  ? __lock_release+0x103/0x460
[ 1273.897764][T13384]  ? fd_install+0x1d1/0x5a0
[ 1273.897953][T13384]  ? trace_lock_acquire+0x14d/0x1f0
[ 1273.898119][T13384]  ? fdget+0x52/0x1e0
[ 1273.898251][T13384]  __sys_setsockopt+0x104/0x1a0
[ 1273.898423][T13384]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1273.898593][T13384]  ? __sys_socket+0x168/0x1e0
[ 1273.898762][T13384]  ? __pfx___sys_socket+0x10/0x10
[ 1273.898933][T13384]  ? do_user_addr_fault+0x374/0xe30
[ 1273.899100][T13384]  __x64_sys_setsockopt+0xbd/0x160
[ 1273.899263][T13384]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1273.899484][T13384]  do_syscall_64+0xc1/0x1d0
[ 1273.899656][T13384]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1273.899863][T13384] RIP: 0033:0x7fc3d271991e
[ 1273.900034][T13384] 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
[ 1273.900621][T13384] RSP: 002b:00007ffcb31ba9e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1273.900869][T13384] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc3d271991e
[ 1273.901112][T13384] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1273.901358][T13384] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1273.901611][T13384] R10: 00007ffcb31baa0c R11: 0000000000000246 R12: 0000000000000000
[ 1273.901861][T13384] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fc3d281e000
[ 1273.902121][T13384]  </TASK>
[ 1273.904806][T13384] veth0: entered allmulticast mode
[ 1273.905355][T13384] veth1: entered allmulticast mode
[ 1273.905700][T13384] veth2: entered allmulticast mode
[ 1273.906029][T13384] veth3: entered allmulticast mode
[ 1273.906366][T13384] veth4: entered allmulticast mode
[ 1273.906694][T13384] veth5: entered allmulticast mode
[ 1301.100610][T13384] veth0: left allmulticast mode
[ 1301.100926][T13384] veth1: left allmulticast mode
[ 1301.101175][T13384] veth2: left allmulticast mode
[ 1301.101456][T13384] veth3: left allmulticast mode
[ 1301.101701][T13384] veth4: left allmulticast mode
[ 1301.101999][T13384] veth5: left allmulticast mode