[ 1896.850830][ T9408] 
[ 1896.850974][ T9408] =============================
[ 1896.851137][ T9408] WARNING: suspicious RCU usage
[ 1896.851308][ T9408] 6.12.0-rc6-virtme #1 Not tainted
[ 1896.851488][ T9408] -----------------------------
[ 1896.851930][ T9408] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1896.852190][ T9408] 
[ 1896.852190][ T9408] other info that might help us debug this:
[ 1896.852190][ T9408] 
[ 1896.852507][ T9408] 
[ 1896.852507][ T9408] rcu_scheduler_active = 2, debug_locks = 1
[ 1896.852754][ T9408] no locks held by smcrouted/9408.
[ 1896.852916][ T9408] 
[ 1896.852916][ T9408] stack backtrace:
[ 1896.853118][ T9408] CPU: 2 UID: 0 PID: 9408 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1896.853401][ T9408] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1896.853765][ T9408] Call Trace:
[ 1896.853890][ T9408]  <TASK>
[ 1896.853983][ T9408]  dump_stack_lvl+0xb0/0xd0
[ 1896.854163][ T9408]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1896.854332][ T9408]  ip6mr_get_table+0x142/0x190
[ 1896.854496][ T9408]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1896.854663][ T9408]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1896.854875][ T9408]  ? __lock_release+0x103/0x460
[ 1896.855036][ T9408]  ? __might_fault+0x11b/0x170
[ 1896.855197][ T9408]  ? trace_lock_acquire+0x14d/0x1f0
[ 1896.855361][ T9408]  ? __might_fault+0xc3/0x170
[ 1896.855521][ T9408]  ? lock_acquire+0x32/0xc0
[ 1896.855684][ T9408]  ? __might_fault+0xc3/0x170
[ 1896.855845][ T9408]  ? __might_fault+0x11b/0x170
[ 1896.856014][ T9408]  do_ipv6_setsockopt+0x705/0x34e0
[ 1896.856184][ T9408]  ? __lock_release+0xe0/0x460
[ 1896.856354][ T9408]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1896.856517][ T9408]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1896.856679][ T9408]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1896.856836][ T9408]  ? validate_chain+0x1fe/0xae0
[ 1896.856998][ T9408]  ? is_bpf_text_address+0x67/0x120
[ 1896.857163][ T9408]  ? __pfx_validate_chain+0x10/0x10
[ 1896.857323][ T9408]  ? hlock_class+0x4e/0x130
[ 1896.857480][ T9408]  ? mark_lock+0x38/0x3e0
[ 1896.857610][ T9408]  ? __lock_acquire+0xb3f/0x1580
[ 1896.857782][ T9408]  ? find_held_lock+0x2c/0x110
[ 1896.857970][ T9408]  ? ipv6_setsockopt+0x7f/0xe0
[ 1896.858130][ T9408]  ipv6_setsockopt+0x7f/0xe0
[ 1896.858294][ T9408]  rawv6_setsockopt+0xb7/0x550
[ 1896.858460][ T9408]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1896.858624][ T9408]  ? __lock_acquire+0xb3f/0x1580
[ 1896.858786][ T9408]  ? kfree+0x2d/0x340
[ 1896.858915][ T9408]  do_sock_setsockopt+0x149/0x3a0
[ 1896.859085][ T9408]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1896.859241][ T9408]  ? __lock_release+0x103/0x460
[ 1896.859401][ T9408]  ? fd_install+0x1d1/0x5a0
[ 1896.859565][ T9408]  ? trace_lock_acquire+0x14d/0x1f0
[ 1896.859739][ T9408]  ? fdget+0x52/0x1e0
[ 1896.859866][ T9408]  __sys_setsockopt+0x104/0x1a0
[ 1896.860032][ T9408]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1896.860197][ T9408]  ? __sys_socket+0x168/0x1e0
[ 1896.860362][ T9408]  ? __pfx___sys_socket+0x10/0x10
[ 1896.860528][ T9408]  __x64_sys_setsockopt+0xbd/0x160
[ 1896.860688][ T9408]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1896.860893][ T9408]  do_syscall_64+0xc1/0x1d0
[ 1896.861056][ T9408]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1896.861254][ T9408] RIP: 0033:0x7f6e3281491e
[ 1896.861424][ T9408] 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
[ 1896.862034][ T9408] RSP: 002b:00007ffe90061c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1896.862276][ T9408] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6e3281491e
[ 1896.862515][ T9408] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1896.862776][ T9408] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1896.863033][ T9408] R10: 00007ffe90061c8c R11: 0000000000000246 R12: 0000000000000000
[ 1896.863279][ T9408] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f6e32919000
[ 1896.863536][ T9408]  </TASK>
[ 1896.871261][ T9408] veth0: entered allmulticast mode
[ 1896.871791][ T9408] veth1: entered allmulticast mode
[ 1896.872116][ T9408] veth2: entered allmulticast mode
[ 1896.872427][ T9408] veth3: entered allmulticast mode
[ 1896.872751][ T9408] veth4: entered allmulticast mode
[ 1896.873081][ T9408] veth5: entered allmulticast mode
[ 1942.939475][ T9408] veth0: left allmulticast mode
[ 1942.939870][ T9408] veth1: left allmulticast mode
[ 1942.940106][ T9408] veth2: left allmulticast mode
[ 1942.940332][ T9408] veth3: left allmulticast mode
[ 1942.940558][ T9408] veth4: left allmulticast mode
[ 1942.940808][ T9408] veth5: left allmulticast mode