[ 1258.837595][ T4456] 
[ 1258.837901][ T4456] =============================
[ 1258.838100][ T4456] WARNING: suspicious RCU usage
[ 1258.838303][ T4456] 6.12.0-rc7-virtme #1 Not tainted
[ 1258.838492][ T4456] -----------------------------
[ 1258.838706][ T4456] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1258.838982][ T4456] 
[ 1258.838982][ T4456] other info that might help us debug this:
[ 1258.838982][ T4456] 
[ 1258.839335][ T4456] 
[ 1258.839335][ T4456] rcu_scheduler_active = 2, debug_locks = 1
[ 1258.839619][ T4456] no locks held by smcrouted/4456.
[ 1258.839807][ T4456] 
[ 1258.839807][ T4456] stack backtrace:
[ 1258.840032][ T4456] CPU: 2 UID: 0 PID: 4456 Comm: smcrouted Not tainted 6.12.0-rc7-virtme #1
[ 1258.840337][ T4456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1258.840552][ T4456] Call Trace:
[ 1258.840686][ T4456]  <TASK>
[ 1258.840777][ T4456]  dump_stack_lvl+0xb0/0xd0
[ 1258.840960][ T4456]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1258.841139][ T4456]  ip6mr_get_table+0x142/0x190
[ 1258.841315][ T4456]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1258.841494][ T4456]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1258.841725][ T4456]  ? __lock_release+0x103/0x460
[ 1258.841902][ T4456]  ? __might_fault+0x11b/0x170
[ 1258.842073][ T4456]  ? trace_lock_acquire+0x14d/0x1f0
[ 1258.842246][ T4456]  ? __might_fault+0xc3/0x170
[ 1258.842410][ T4456]  ? lock_acquire+0x32/0xc0
[ 1258.842577][ T4456]  ? __might_fault+0xc3/0x170
[ 1258.842747][ T4456]  ? __might_fault+0x11b/0x170
[ 1258.842928][ T4456]  do_ipv6_setsockopt+0x705/0x34e0
[ 1258.843109][ T4456]  ? __lock_release+0x10/0x460
[ 1258.843282][ T4456]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1258.843450][ T4456]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1258.843622][ T4456]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1258.843789][ T4456]  ? validate_chain+0x1fe/0xae0
[ 1258.843964][ T4456]  ? is_bpf_text_address+0x67/0x120
[ 1258.844143][ T4456]  ? __pfx_validate_chain+0x10/0x10
[ 1258.844309][ T4456]  ? hlock_class+0x4e/0x130
[ 1258.844474][ T4456]  ? mark_lock+0x38/0x3e0
[ 1258.844606][ T4456]  ? __lock_acquire+0xb3f/0x1580
[ 1258.844782][ T4456]  ? find_held_lock+0x2c/0x110
[ 1258.844960][ T4456]  ? ipv6_setsockopt+0x7f/0xe0
[ 1258.845132][ T4456]  ipv6_setsockopt+0x7f/0xe0
[ 1258.845307][ T4456]  rawv6_setsockopt+0xb7/0x550
[ 1258.845485][ T4456]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1258.845671][ T4456]  ? __lock_acquire+0xb3f/0x1580
[ 1258.845839][ T4456]  ? kfree+0x2d/0x340
[ 1258.845975][ T4456]  do_sock_setsockopt+0x149/0x3a0
[ 1258.846146][ T4456]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1258.846313][ T4456]  ? __lock_release+0x103/0x460
[ 1258.846495][ T4456]  ? fd_install+0x1d1/0x5a0
[ 1258.846665][ T4456]  ? trace_lock_acquire+0x14d/0x1f0
[ 1258.846832][ T4456]  ? fdget+0x52/0x1e0
[ 1258.846978][ T4456]  __sys_setsockopt+0x104/0x1a0
[ 1258.847148][ T4456]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1258.847319][ T4456]  ? __sys_socket+0x168/0x1e0
[ 1258.847488][ T4456]  ? __pfx___sys_socket+0x10/0x10
[ 1258.847661][ T4456]  ? do_user_addr_fault+0x374/0xe30
[ 1258.847834][ T4456]  __x64_sys_setsockopt+0xbd/0x160
[ 1258.848037][ T4456]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1258.848251][ T4456]  do_syscall_64+0xc1/0x1d0
[ 1258.848445][ T4456]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1258.848657][ T4456] RIP: 0033:0x7f57afae591e
[ 1258.848836][ 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
[ 1258.849463][ T4456] RSP: 002b:00007ffd2c139ff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1258.849744][ T4456] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f57afae591e
[ 1258.849998][ T4456] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1258.850261][ T4456] RBP: 0000000000000008 R08: 0000000000000004 R09: 000000003db71010
[ 1258.850517][ T4456] R10: 00007ffd2c13a01c R11: 0000000000000246 R12: 0000000000000000
[ 1258.850772][ T4456] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f57afbea000
[ 1258.851051][ T4456]  </TASK>
[ 1258.854219][ T4456] veth0: entered allmulticast mode
[ 1258.854880][ T4456] veth1: entered allmulticast mode
[ 1258.855273][ T4456] veth2: entered allmulticast mode
[ 1258.855668][ T4456] veth3: entered allmulticast mode
[ 1258.856014][ T4456] veth4: entered allmulticast mode
[ 1258.856390][ T4456] veth5: entered allmulticast mode
[ 1269.880175][ T4542] GACT probability NOT on
[ 1286.250368][ T4456] veth0: left allmulticast mode
[ 1286.250714][ T4456] veth1: left allmulticast mode
[ 1286.250973][ T4456] veth2: left allmulticast mode
[ 1286.251212][ T4456] veth3: left allmulticast mode
[ 1286.251455][ T4456] veth4: left allmulticast mode
[ 1286.251718][ T4456] veth5: left allmulticast mode