[ 1838.969034][T12393] 
[ 1838.969202][T12393] =============================
[ 1838.969471][T12393] WARNING: suspicious RCU usage
[ 1838.969645][T12393] 6.12.0-rc6-virtme #1 Not tainted
[ 1838.969801][T12393] -----------------------------
[ 1838.969963][T12393] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1838.970189][T12393] 
[ 1838.970189][T12393] other info that might help us debug this:
[ 1838.970189][T12393] 
[ 1838.970507][T12393] 
[ 1838.970507][T12393] rcu_scheduler_active = 2, debug_locks = 1
[ 1838.970746][T12393] no locks held by smcrouted/12393.
[ 1838.970905][T12393] 
[ 1838.970905][T12393] stack backtrace:
[ 1838.971109][T12393] CPU: 3 UID: 0 PID: 12393 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1838.971373][T12393] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1838.971713][T12393] Call Trace:
[ 1838.971848][T12393]  <TASK>
[ 1838.971941][T12393]  dump_stack_lvl+0xb0/0xd0
[ 1838.972116][T12393]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1838.972291][T12393]  ip6mr_get_table+0x142/0x190
[ 1838.972472][T12393]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1838.972628][T12393]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1838.972835][T12393]  ? __lock_release+0x103/0x460
[ 1838.972989][T12393]  ? __might_fault+0x11b/0x170
[ 1838.973150][T12393]  ? trace_lock_acquire+0x14d/0x1f0
[ 1838.973310][T12393]  ? __might_fault+0xc3/0x170
[ 1838.973466][T12393]  ? lock_acquire+0x32/0xc0
[ 1838.973622][T12393]  ? __might_fault+0xc3/0x170
[ 1838.973782][T12393]  ? __might_fault+0x11b/0x170
[ 1838.973955][T12393]  do_ipv6_setsockopt+0x705/0x34e0
[ 1838.974108][T12393]  ? __lock_release+0xe0/0x460
[ 1838.974275][T12393]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1838.974425][T12393]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1838.974587][T12393]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1838.974739][T12393]  ? validate_chain+0x1fe/0xae0
[ 1838.974903][T12393]  ? is_bpf_text_address+0x67/0x120
[ 1838.975064][T12393]  ? __pfx_validate_chain+0x10/0x10
[ 1838.975222][T12393]  ? hlock_class+0x4e/0x130
[ 1838.975385][T12393]  ? mark_lock+0x38/0x3e0
[ 1838.975503][T12393]  ? __lock_acquire+0xb3f/0x1580
[ 1838.975663][T12393]  ? find_held_lock+0x2c/0x110
[ 1838.975835][T12393]  ? ipv6_setsockopt+0x7f/0xe0
[ 1838.975986][T12393]  ipv6_setsockopt+0x7f/0xe0
[ 1838.976138][T12393]  rawv6_setsockopt+0xb7/0x550
[ 1838.976293][T12393]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1838.976444][T12393]  ? __lock_acquire+0xb3f/0x1580
[ 1838.976603][T12393]  ? kfree+0x2d/0x340
[ 1838.976742][T12393]  do_sock_setsockopt+0x149/0x3a0
[ 1838.976900][T12393]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1838.977049][T12393]  ? __lock_release+0x103/0x460
[ 1838.977215][T12393]  ? fd_install+0x1d1/0x5a0
[ 1838.977370][T12393]  ? trace_lock_acquire+0x14d/0x1f0
[ 1838.977522][T12393]  ? fdget+0x52/0x1e0
[ 1838.977646][T12393]  __sys_setsockopt+0x104/0x1a0
[ 1838.977807][T12393]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1838.977962][T12393]  ? __sys_socket+0x168/0x1e0
[ 1838.978120][T12393]  ? __pfx___sys_socket+0x10/0x10
[ 1838.978287][T12393]  __x64_sys_setsockopt+0xbd/0x160
[ 1838.978445][T12393]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1838.978645][T12393]  do_syscall_64+0xc1/0x1d0
[ 1838.978817][T12393]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1838.979005][T12393] RIP: 0033:0x7f022a50891e
[ 1838.979176][T12393] 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
[ 1838.979720][T12393] RSP: 002b:00007ffe9863a838 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1838.979959][T12393] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f022a50891e
[ 1838.980214][T12393] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1838.980445][T12393] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1838.980682][T12393] R10: 00007ffe9863a85c R11: 0000000000000246 R12: 0000000000000000
[ 1838.980934][T12393] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f022a60d000
[ 1838.981180][T12393]  </TASK>
[ 1838.988401][T12393] veth0: entered allmulticast mode
[ 1838.989108][T12393] veth1: entered allmulticast mode
[ 1838.989461][T12393] veth2: entered allmulticast mode
[ 1838.989778][T12393] veth3: entered allmulticast mode
[ 1868.744722][T12393] veth0: left allmulticast mode
[ 1868.745052][T12393] veth1: left allmulticast mode
[ 1868.745307][T12393] veth2: left allmulticast mode
[ 1868.745563][T12393] veth3: left allmulticast mode