[ 1306.597980][ T7232] 
[ 1306.598239][ T7232] =============================
[ 1306.598569][ T7232] WARNING: suspicious RCU usage
[ 1306.598866][ T7232] 6.12.0-rc6-virtme #1 Not tainted
[ 1306.599145][ T7232] -----------------------------
[ 1306.601068][ T7232] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1306.601669][ T7232] 
[ 1306.601669][ T7232] other info that might help us debug this:
[ 1306.601669][ T7232] 
[ 1306.602483][ T7232] 
[ 1306.602483][ T7232] rcu_scheduler_active = 2, debug_locks = 1
[ 1306.603015][ T7232] no locks held by smcrouted/7232.
[ 1306.603436][ T7232] 
[ 1306.603436][ T7232] stack backtrace:
[ 1306.603969][ T7232] CPU: 2 UID: 0 PID: 7232 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1306.604438][ T7232] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1306.604777][ T7232] Call Trace:
[ 1306.604966][ T7232]  <TASK>
[ 1306.605062][ T7232]  dump_stack_lvl+0xb0/0xd0
[ 1306.605246][ T7232]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1306.605423][ T7232]  ip6mr_get_table+0x142/0x190
[ 1306.605604][ T7232]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1306.605782][ T7232]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1306.606005][ T7232]  ? __lock_release+0x103/0x460
[ 1306.606181][ T7232]  ? __might_fault+0x11b/0x170
[ 1306.606358][ T7232]  ? trace_lock_acquire+0x14d/0x1f0
[ 1306.606538][ T7232]  ? __might_fault+0xc3/0x170
[ 1306.606696][ T7232]  ? lock_acquire+0x32/0xc0
[ 1306.606860][ T7232]  ? __might_fault+0xc3/0x170
[ 1306.607030][ T7232]  ? __might_fault+0x11b/0x170
[ 1306.607197][ T7232]  do_ipv6_setsockopt+0x705/0x34e0
[ 1306.607363][ T7232]  ? __lock_release+0xe0/0x460
[ 1306.607528][ T7232]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1306.607683][ T7232]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1306.607856][ T7232]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1306.608031][ T7232]  ? validate_chain+0x1fe/0xae0
[ 1306.608193][ T7232]  ? is_bpf_text_address+0x67/0x120
[ 1306.608359][ T7232]  ? __pfx_validate_chain+0x10/0x10
[ 1306.608517][ T7232]  ? hlock_class+0x4e/0x130
[ 1306.608672][ T7232]  ? mark_lock+0x38/0x3e0
[ 1306.608799][ T7232]  ? __lock_acquire+0xb3f/0x1580
[ 1306.608966][ T7232]  ? find_held_lock+0x2c/0x110
[ 1306.609136][ T7232]  ? ipv6_setsockopt+0x7f/0xe0
[ 1306.609295][ T7232]  ipv6_setsockopt+0x7f/0xe0
[ 1306.609456][ T7232]  rawv6_setsockopt+0xb7/0x550
[ 1306.609618][ T7232]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1306.609775][ T7232]  ? __lock_acquire+0xb3f/0x1580
[ 1306.609939][ T7232]  ? kfree+0x2d/0x340
[ 1306.610067][ T7232]  do_sock_setsockopt+0x149/0x3a0
[ 1306.610225][ T7232]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1306.610393][ T7232]  ? __lock_release+0x103/0x460
[ 1306.610556][ T7232]  ? fd_install+0x1d1/0x5a0
[ 1306.610721][ T7232]  ? trace_lock_acquire+0x14d/0x1f0
[ 1306.610886][ T7232]  ? fdget+0x52/0x1e0
[ 1306.611013][ T7232]  __sys_setsockopt+0x104/0x1a0
[ 1306.611182][ T7232]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1306.611348][ T7232]  ? __sys_socket+0x168/0x1e0
[ 1306.611506][ T7232]  ? __pfx___sys_socket+0x10/0x10
[ 1306.611668][ T7232]  ? do_user_addr_fault+0x374/0xe30
[ 1306.611842][ T7232]  __x64_sys_setsockopt+0xbd/0x160
[ 1306.612001][ T7232]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1306.612193][ T7232]  do_syscall_64+0xc1/0x1d0
[ 1306.612354][ T7232]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1306.612552][ T7232] RIP: 0033:0x7f837ec4491e
[ 1306.612724][ T7232] 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
[ 1306.613279][ T7232] RSP: 002b:00007fff23555e48 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1306.613524][ T7232] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f837ec4491e
[ 1306.613765][ T7232] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1306.614019][ T7232] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1306.614257][ T7232] R10: 00007fff23555e6c R11: 0000000000000246 R12: 0000000000000000
[ 1306.614497][ T7232] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f837ed49000
[ 1306.614746][ T7232]  </TASK>
[ 1306.617866][ T7232] veth0: entered allmulticast mode
[ 1306.618760][ T7232] veth1: entered allmulticast mode
[ 1306.619321][ T7232] veth2: entered allmulticast mode
[ 1306.619861][ T7232] veth3: entered allmulticast mode
[ 1325.543782][ T7232] veth0: left allmulticast mode
[ 1325.544096][ T7232] veth1: left allmulticast mode
[ 1325.544346][ T7232] veth2: left allmulticast mode
[ 1325.544585][ T7232] veth3: left allmulticast mode