[ 1297.000635][ T9688] 
[ 1297.000827][ T9688] =============================
[ 1297.001010][ T9688] WARNING: suspicious RCU usage
[ 1297.001215][ T9688] 6.12.0-rc6-virtme #1 Not tainted
[ 1297.001399][ T9688] -----------------------------
[ 1297.001574][ T9688] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1297.001822][ T9688] 
[ 1297.001822][ T9688] other info that might help us debug this:
[ 1297.001822][ T9688] 
[ 1297.002154][ T9688] 
[ 1297.002154][ T9688] rcu_scheduler_active = 2, debug_locks = 1
[ 1297.002436][ T9688] no locks held by smcrouted/9688.
[ 1297.002642][ T9688] 
[ 1297.002642][ T9688] stack backtrace:
[ 1297.002885][ T9688] CPU: 2 UID: 0 PID: 9688 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1297.003185][ T9688] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1297.003391][ T9688] Call Trace:
[ 1297.003539][ T9688]  <TASK>
[ 1297.003631][ T9688]  dump_stack_lvl+0xb0/0xd0
[ 1297.003806][ T9688]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1297.003977][ T9688]  ip6mr_get_table+0x142/0x190
[ 1297.004144][ T9688]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1297.004305][ T9688]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1297.004532][ T9688]  ? __lock_release+0x103/0x460
[ 1297.004741][ T9688]  ? __might_fault+0x11b/0x170
[ 1297.004916][ T9688]  ? trace_lock_acquire+0x14d/0x1f0
[ 1297.005109][ T9688]  ? __might_fault+0xc3/0x170
[ 1297.005318][ T9688]  ? lock_acquire+0x32/0xc0
[ 1297.005506][ T9688]  ? __might_fault+0xc3/0x170
[ 1297.005676][ T9688]  ? __might_fault+0x11b/0x170
[ 1297.005860][ T9688]  do_ipv6_setsockopt+0x705/0x34e0
[ 1297.006040][ T9688]  ? __lock_release+0xe0/0x460
[ 1297.006226][ T9688]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1297.006403][ T9688]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1297.006577][ T9688]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1297.006784][ T9688]  ? validate_chain+0x1fe/0xae0
[ 1297.006968][ T9688]  ? is_bpf_text_address+0x67/0x120
[ 1297.007159][ T9688]  ? __pfx_validate_chain+0x10/0x10
[ 1297.007355][ T9688]  ? hlock_class+0x4e/0x130
[ 1297.007543][ T9688]  ? mark_lock+0x38/0x3e0
[ 1297.007684][ T9688]  ? __lock_acquire+0xb3f/0x1580
[ 1297.007888][ T9688]  ? find_held_lock+0x2c/0x110
[ 1297.008084][ T9688]  ? ipv6_setsockopt+0x7f/0xe0
[ 1297.008266][ T9688]  ipv6_setsockopt+0x7f/0xe0
[ 1297.008455][ T9688]  rawv6_setsockopt+0xb7/0x550
[ 1297.008643][ T9688]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1297.008826][ T9688]  ? __lock_acquire+0xb3f/0x1580
[ 1297.009019][ T9688]  ? kfree+0x2d/0x340
[ 1297.009180][ T9688]  do_sock_setsockopt+0x149/0x3a0
[ 1297.009357][ T9688]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1297.009530][ T9688]  ? __lock_release+0x103/0x460
[ 1297.009704][ T9688]  ? fd_install+0x1d1/0x5a0
[ 1297.009916][ T9688]  ? trace_lock_acquire+0x14d/0x1f0
[ 1297.010081][ T9688]  ? fdget+0x52/0x1e0
[ 1297.010233][ T9688]  __sys_setsockopt+0x104/0x1a0
[ 1297.010402][ T9688]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1297.010603][ T9688]  ? __sys_socket+0x168/0x1e0
[ 1297.010791][ T9688]  ? __pfx___sys_socket+0x10/0x10
[ 1297.010960][ T9688]  ? do_user_addr_fault+0x374/0xe30
[ 1297.011128][ T9688]  __x64_sys_setsockopt+0xbd/0x160
[ 1297.011306][ T9688]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1297.011530][ T9688]  do_syscall_64+0xc1/0x1d0
[ 1297.011719][ T9688]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1297.011939][ T9688] RIP: 0033:0x7fd43206591e
[ 1297.012129][ T9688] 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
[ 1297.012718][ T9688] RSP: 002b:00007ffe14c57e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1297.012994][ T9688] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd43206591e
[ 1297.013249][ T9688] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1297.013501][ T9688] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1297.013770][ T9688] R10: 00007ffe14c57e6c R11: 0000000000000246 R12: 0000000000000000
[ 1297.014031][ T9688] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fd43216a000
[ 1297.014295][ T9688]  </TASK>
[ 1297.017081][ T9688] veth0: entered allmulticast mode
[ 1297.017880][ T9688] veth1: entered allmulticast mode
[ 1297.018258][ T9688] veth2: entered allmulticast mode
[ 1297.018616][ T9688] veth3: entered allmulticast mode
[ 1316.124633][ T9688] veth0: left allmulticast mode
[ 1316.125053][ T9688] veth1: left allmulticast mode
[ 1316.125413][ T9688] veth2: left allmulticast mode
[ 1316.125722][ T9688] veth3: left allmulticast mode