[ 1290.601506][ T7742] 
[ 1290.601713][ T7742] =============================
[ 1290.601904][ T7742] WARNING: suspicious RCU usage
[ 1290.602090][ T7742] 6.12.0-rc7-virtme #1 Not tainted
[ 1290.602268][ T7742] -----------------------------
[ 1290.602443][ T7742] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1290.602794][ T7742] 
[ 1290.602794][ T7742] other info that might help us debug this:
[ 1290.602794][ T7742] 
[ 1290.603192][ T7742] 
[ 1290.603192][ T7742] rcu_scheduler_active = 2, debug_locks = 1
[ 1290.603489][ T7742] no locks held by smcrouted/7742.
[ 1290.603734][ T7742] 
[ 1290.603734][ T7742] stack backtrace:
[ 1290.604054][ T7742] CPU: 2 UID: 0 PID: 7742 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1290.604334][ T7742] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1290.604534][ T7742] Call Trace:
[ 1290.604658][ T7742]  <TASK>
[ 1290.604746][ T7742]  dump_stack_lvl+0xb0/0xd0
[ 1290.604923][ T7742]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1290.605085][ T7742]  ip6mr_get_table+0x142/0x190
[ 1290.605279][ T7742]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1290.605449][ T7742]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1290.605653][ T7742]  ? __lock_release+0x103/0x460
[ 1290.605816][ T7742]  ? __might_fault+0x11b/0x170
[ 1290.605981][ T7742]  ? trace_lock_acquire+0x14d/0x1f0
[ 1290.606145][ T7742]  ? __might_fault+0xc3/0x170
[ 1290.606301][ T7742]  ? lock_acquire+0x32/0xc0
[ 1290.606458][ T7742]  ? __might_fault+0xc3/0x170
[ 1290.606632][ T7742]  ? __might_fault+0x11b/0x170
[ 1290.606801][ T7742]  do_ipv6_setsockopt+0x705/0x34e0
[ 1290.606963][ T7742]  ? __lock_release+0x10/0x460
[ 1290.607119][ T7742]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1290.607277][ T7742]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1290.607442][ T7742]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1290.607599][ T7742]  ? validate_chain+0x1fe/0xae0
[ 1290.607755][ T7742]  ? is_bpf_text_address+0x67/0x120
[ 1290.607959][ T7742]  ? __pfx_validate_chain+0x10/0x10
[ 1290.608115][ T7742]  ? hlock_class+0x4e/0x130
[ 1290.608274][ T7742]  ? mark_lock+0x38/0x3e0
[ 1290.608399][ T7742]  ? __lock_acquire+0xb3f/0x1580
[ 1290.608565][ T7742]  ? find_held_lock+0x2c/0x110
[ 1290.608730][ T7742]  ? ipv6_setsockopt+0x7f/0xe0
[ 1290.608885][ T7742]  ipv6_setsockopt+0x7f/0xe0
[ 1290.609047][ T7742]  rawv6_setsockopt+0xb7/0x550
[ 1290.609236][ T7742]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1290.609404][ T7742]  ? __lock_acquire+0xb3f/0x1580
[ 1290.609564][ T7742]  ? kfree+0x2d/0x340
[ 1290.609690][ T7742]  do_sock_setsockopt+0x149/0x3a0
[ 1290.609854][ T7742]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1290.610013][ T7742]  ? __lock_release+0x103/0x460
[ 1290.610166][ T7742]  ? fd_install+0x1d1/0x5a0
[ 1290.610325][ T7742]  ? trace_lock_acquire+0x14d/0x1f0
[ 1290.610484][ T7742]  ? fdget+0x52/0x1e0
[ 1290.610606][ T7742]  __sys_setsockopt+0x104/0x1a0
[ 1290.610775][ T7742]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1290.610930][ T7742]  ? __sys_socket+0x168/0x1e0
[ 1290.611094][ T7742]  ? __pfx___sys_socket+0x10/0x10
[ 1290.611257][ T7742]  ? do_user_addr_fault+0x374/0xe30
[ 1290.611424][ T7742]  __x64_sys_setsockopt+0xbd/0x160
[ 1290.611579][ T7742]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1290.611769][ T7742]  do_syscall_64+0xc1/0x1d0
[ 1290.611928][ T7742]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1290.612130][ T7742] RIP: 0033:0x7fa6bee3f91e
[ 1290.612295][ T7742] 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
[ 1290.612835][ T7742] RSP: 002b:00007ffd3f8bca18 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1290.613078][ T7742] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa6bee3f91e
[ 1290.613346][ T7742] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1290.613583][ T7742] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1290.613817][ T7742] R10: 00007ffd3f8bca3c R11: 0000000000000246 R12: 0000000000000000
[ 1290.614054][ T7742] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007fa6bef44000
[ 1290.614302][ T7742]  </TASK>
[ 1290.618303][ T7742] veth0: entered allmulticast mode
[ 1290.619007][ T7742] veth1: entered allmulticast mode
[ 1290.619416][ T7742] veth2: entered allmulticast mode
[ 1290.619955][ T7742] veth3: entered allmulticast mode
[ 1309.390833][ T7742] veth0: left allmulticast mode
[ 1309.391363][ T7742] veth1: left allmulticast mode
[ 1309.391840][ T7742] veth2: left allmulticast mode
[ 1309.392273][ T7742] veth3: left allmulticast mode