[ 1336.550557][T18110] 
[ 1336.550734][T18110] =============================
[ 1336.550977][T18110] WARNING: suspicious RCU usage
[ 1336.552538][T18110] 6.12.0-rc7-virtme #1 Not tainted
[ 1336.552807][T18110] -----------------------------
[ 1336.553227][T18110] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1336.553588][T18110] 
[ 1336.553588][T18110] other info that might help us debug this:
[ 1336.553588][T18110] 
[ 1336.554044][T18110] 
[ 1336.554044][T18110] rcu_scheduler_active = 2, debug_locks = 1
[ 1336.554552][T18110] no locks held by smcrouted/18110.
[ 1336.554804][T18110] 
[ 1336.554804][T18110] stack backtrace:
[ 1336.555111][T18110] CPU: 3 UID: 0 PID: 18110 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1336.555415][T18110] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1336.555614][T18110] Call Trace:
[ 1336.555759][T18110]  <TASK>
[ 1336.555846][T18110]  dump_stack_lvl+0xb0/0xd0
[ 1336.556014][T18110]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1336.556177][T18110]  ip6mr_get_table+0x142/0x190
[ 1336.556608][T18110]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1336.556773][T18110]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1336.556979][T18110]  ? __lock_release+0x103/0x460
[ 1336.557144][T18110]  ? __might_fault+0x11b/0x170
[ 1336.557315][T18110]  ? trace_lock_acquire+0x14d/0x1f0
[ 1336.557477][T18110]  ? __might_fault+0xc3/0x170
[ 1336.557634][T18110]  ? lock_acquire+0x32/0xc0
[ 1336.557790][T18110]  ? __might_fault+0xc3/0x170
[ 1336.557954][T18110]  ? __might_fault+0x11b/0x170
[ 1336.558116][T18110]  do_ipv6_setsockopt+0x705/0x34e0
[ 1336.558281][T18110]  ? __lock_release+0x10/0x460
[ 1336.558447][T18110]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1336.558605][T18110]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1336.558766][T18110]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1336.558924][T18110]  ? validate_chain+0x1fe/0xae0
[ 1336.559089][T18110]  ? is_bpf_text_address+0x67/0x120
[ 1336.559253][T18110]  ? __pfx_validate_chain+0x10/0x10
[ 1336.559422][T18110]  ? hlock_class+0x4e/0x130
[ 1336.559583][T18110]  ? mark_lock+0x38/0x3e0
[ 1336.559712][T18110]  ? __lock_acquire+0xb3f/0x1580
[ 1336.559878][T18110]  ? find_held_lock+0x2c/0x110
[ 1336.560044][T18110]  ? ipv6_setsockopt+0x7f/0xe0
[ 1336.560199][T18110]  ipv6_setsockopt+0x7f/0xe0
[ 1336.560364][T18110]  rawv6_setsockopt+0xb7/0x550
[ 1336.560526][T18110]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1336.560684][T18110]  ? __lock_acquire+0xb3f/0x1580
[ 1336.560843][T18110]  ? kfree+0x2d/0x340
[ 1336.560973][T18110]  do_sock_setsockopt+0x149/0x3a0
[ 1336.561133][T18110]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1336.561293][T18110]  ? __lock_release+0x103/0x460
[ 1336.561450][T18110]  ? fd_install+0x1d1/0x5a0
[ 1336.561612][T18110]  ? trace_lock_acquire+0x14d/0x1f0
[ 1336.561771][T18110]  ? fdget+0x52/0x1e0
[ 1336.561895][T18110]  __sys_setsockopt+0x104/0x1a0
[ 1336.562057][T18110]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1336.562217][T18110]  ? __sys_socket+0x168/0x1e0
[ 1336.562378][T18110]  ? __pfx___sys_socket+0x10/0x10
[ 1336.562535][T18110]  ? do_user_addr_fault+0x374/0xe30
[ 1336.562696][T18110]  __x64_sys_setsockopt+0xbd/0x160
[ 1336.562857][T18110]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1336.563052][T18110]  do_syscall_64+0xc1/0x1d0
[ 1336.563210][T18110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1336.563415][T18110] RIP: 0033:0x7fa7cf4ed91e
[ 1336.563588][T18110] 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
[ 1336.564139][T18110] RSP: 002b:00007ffc2c4c3a28 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1336.564380][T18110] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa7cf4ed91e
[ 1336.564613][T18110] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1336.564894][T18110] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1336.565227][T18110] R10: 00007ffc2c4c3a4c R11: 0000000000000246 R12: 0000000000000000
[ 1336.565577][T18110] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fa7cf5f2000
[ 1336.565965][T18110]  </TASK>
[ 1336.575886][T18110] veth0: entered allmulticast mode
[ 1336.576464][T18110] veth1: entered allmulticast mode
[ 1336.576790][T18110] veth2: entered allmulticast mode
[ 1336.577106][T18110] veth3: entered allmulticast mode
[ 1336.577430][T18110] veth4: entered allmulticast mode
[ 1336.577753][T18110] veth5: entered allmulticast mode
[ 1362.674962][T18110] veth0: left allmulticast mode
[ 1362.675392][T18110] veth1: left allmulticast mode
[ 1362.675673][T18110] veth2: left allmulticast mode
[ 1362.675922][T18110] veth3: left allmulticast mode
[ 1362.676191][T18110] veth4: left allmulticast mode
[ 1362.676445][T18110] veth5: left allmulticast mode