[ 1264.768572][ T4456] 
[ 1264.768720][ T4456] =============================
[ 1264.768903][ T4456] WARNING: suspicious RCU usage
[ 1264.769076][ T4456] 6.12.0-rc6-virtme #1 Not tainted
[ 1264.769251][ T4456] -----------------------------
[ 1264.769421][ T4456] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1264.769731][ T4456] 
[ 1264.769731][ T4456] other info that might help us debug this:
[ 1264.769731][ T4456] 
[ 1264.770074][ T4456] 
[ 1264.770074][ T4456] rcu_scheduler_active = 2, debug_locks = 1
[ 1264.770336][ T4456] no locks held by smcrouted/4456.
[ 1264.771284][ T4456] 
[ 1264.771284][ T4456] stack backtrace:
[ 1264.771559][ T4456] CPU: 3 UID: 0 PID: 4456 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1264.771861][ T4456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1264.772079][ T4456] Call Trace:
[ 1264.772217][ T4456]  <TASK>
[ 1264.772314][ T4456]  dump_stack_lvl+0xb0/0xd0
[ 1264.772503][ T4456]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1264.772682][ T4456]  ip6mr_get_table+0x142/0x190
[ 1264.772863][ T4456]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1264.773039][ T4456]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1264.773259][ T4456]  ? __lock_release+0x103/0x460
[ 1264.773444][ T4456]  ? __might_fault+0x11b/0x170
[ 1264.773629][ T4456]  ? trace_lock_acquire+0x14d/0x1f0
[ 1264.773809][ T4456]  ? __might_fault+0xc3/0x170
[ 1264.773985][ T4456]  ? lock_acquire+0x32/0xc0
[ 1264.774161][ T4456]  ? __might_fault+0xc3/0x170
[ 1264.774345][ T4456]  ? __might_fault+0x11b/0x170
[ 1264.774544][ T4456]  do_ipv6_setsockopt+0x705/0x34e0
[ 1264.774747][ T4456]  ? __lock_release+0xe0/0x460
[ 1264.774929][ T4456]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1264.775104][ T4456]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1264.775276][ T4456]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1264.775448][ T4456]  ? validate_chain+0x1fe/0xae0
[ 1264.775616][ T4456]  ? is_bpf_text_address+0x67/0x120
[ 1264.775793][ T4456]  ? __pfx_validate_chain+0x10/0x10
[ 1264.775960][ T4456]  ? hlock_class+0x4e/0x130
[ 1264.776128][ T4456]  ? mark_lock+0x38/0x3e0
[ 1264.776260][ T4456]  ? __lock_acquire+0xb3f/0x1580
[ 1264.776437][ T4456]  ? find_held_lock+0x2c/0x110
[ 1264.776624][ T4456]  ? ipv6_setsockopt+0x7f/0xe0
[ 1264.776788][ T4456]  ipv6_setsockopt+0x7f/0xe0
[ 1264.776956][ T4456]  rawv6_setsockopt+0xb7/0x550
[ 1264.777126][ T4456]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1264.777293][ T4456]  ? __lock_acquire+0xb3f/0x1580
[ 1264.777459][ T4456]  ? kfree+0x2d/0x340
[ 1264.777597][ T4456]  do_sock_setsockopt+0x149/0x3a0
[ 1264.777765][ T4456]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1264.777930][ T4456]  ? __lock_release+0x103/0x460
[ 1264.778095][ T4456]  ? fd_install+0x1d1/0x5a0
[ 1264.778264][ T4456]  ? trace_lock_acquire+0x14d/0x1f0
[ 1264.778429][ T4456]  ? fdget+0x52/0x1e0
[ 1264.778569][ T4456]  __sys_setsockopt+0x104/0x1a0
[ 1264.778742][ T4456]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1264.778907][ T4456]  ? __sys_socket+0x168/0x1e0
[ 1264.779073][ T4456]  ? __pfx___sys_socket+0x10/0x10
[ 1264.779238][ T4456]  ? do_user_addr_fault+0x374/0xe30
[ 1264.779407][ T4456]  __x64_sys_setsockopt+0xbd/0x160
[ 1264.779606][ T4456]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1264.779811][ T4456]  do_syscall_64+0xc1/0x1d0
[ 1264.779987][ T4456]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1264.780193][ T4456] RIP: 0033:0x7f09a11d191e
[ 1264.780368][ T4456] 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
[ 1264.780937][ T4456] RSP: 002b:00007fff82d45f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1264.781187][ T4456] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f09a11d191e
[ 1264.781450][ T4456] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1264.781697][ T4456] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000000d2bc010
[ 1264.781943][ T4456] R10: 00007fff82d45f9c R11: 0000000000000246 R12: 0000000000000000
[ 1264.782186][ T4456] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f09a12d6000
[ 1264.782450][ T4456]  </TASK>
[ 1264.795346][ T4456] veth0: entered allmulticast mode
[ 1264.795988][ T4456] veth1: entered allmulticast mode
[ 1264.796339][ T4456] veth2: entered allmulticast mode
[ 1264.796683][ T4456] veth3: entered allmulticast mode
[ 1264.797013][ T4456] veth4: entered allmulticast mode
[ 1264.797341][ T4456] veth5: entered allmulticast mode
[ 1275.756864][ T4542] GACT probability NOT on
[ 1292.068741][ T4456] veth0: left allmulticast mode
[ 1292.069116][ T4456] veth1: left allmulticast mode
[ 1292.069337][ T4456] veth2: left allmulticast mode
[ 1292.069582][ T4456] veth3: left allmulticast mode
[ 1292.069857][ T4456] veth4: left allmulticast mode
[ 1292.070091][ T4456] veth5: left allmulticast mode