[ 1832.094030][T13883] 
[ 1832.094157][T13883] =============================
[ 1832.094317][T13883] WARNING: suspicious RCU usage
[ 1832.094489][T13883] 6.12.0-rc6-virtme #1 Not tainted
[ 1832.094641][T13883] -----------------------------
[ 1832.094793][T13883] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1832.095011][T13883] 
[ 1832.095011][T13883] other info that might help us debug this:
[ 1832.095011][T13883] 
[ 1832.095301][T13883] 
[ 1832.095301][T13883] rcu_scheduler_active = 2, debug_locks = 1
[ 1832.095529][T13883] no locks held by smcrouted/13883.
[ 1832.095685][T13883] 
[ 1832.095685][T13883] stack backtrace:
[ 1832.095880][T13883] CPU: 1 UID: 0 PID: 13883 Comm: smcrouted Not tainted 6.12.0-rc6-virtme #1
[ 1832.096581][T13883] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1832.096929][T13883] Call Trace:
[ 1832.097055][T13883]  <TASK>
[ 1832.097137][T13883]  dump_stack_lvl+0xb0/0xd0
[ 1832.097305][T13883]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1832.097463][T13883]  ip6mr_get_table+0x142/0x190
[ 1832.097622][T13883]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1832.097775][T13883]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1832.097973][T13883]  ? __lock_release+0x103/0x460
[ 1832.098124][T13883]  ? __might_fault+0x11b/0x170
[ 1832.098279][T13883]  ? trace_lock_acquire+0x14d/0x1f0
[ 1832.098453][T13883]  ? __might_fault+0xc3/0x170
[ 1832.098601][T13883]  ? lock_acquire+0x32/0xc0
[ 1832.098751][T13883]  ? __might_fault+0xc3/0x170
[ 1832.098909][T13883]  ? __might_fault+0x11b/0x170
[ 1832.099069][T13883]  do_ipv6_setsockopt+0x705/0x34e0
[ 1832.099223][T13883]  ? __lock_release+0xe0/0x460
[ 1832.099374][T13883]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1832.099525][T13883]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1832.099681][T13883]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1832.099831][T13883]  ? validate_chain+0x1fe/0xae0
[ 1832.099981][T13883]  ? is_bpf_text_address+0x67/0x120
[ 1832.100141][T13883]  ? __pfx_validate_chain+0x10/0x10
[ 1832.100294][T13883]  ? hlock_class+0x4e/0x130
[ 1832.100443][T13883]  ? mark_lock+0x38/0x3e0
[ 1832.100562][T13883]  ? __lock_acquire+0xb3f/0x1580
[ 1832.100722][T13883]  ? find_held_lock+0x2c/0x110
[ 1832.100883][T13883]  ? ipv6_setsockopt+0x7f/0xe0
[ 1832.101033][T13883]  ipv6_setsockopt+0x7f/0xe0
[ 1832.101191][T13883]  rawv6_setsockopt+0xb7/0x550
[ 1832.101347][T13883]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1832.101499][T13883]  ? __lock_acquire+0xb3f/0x1580
[ 1832.101656][T13883]  ? kfree+0x2d/0x340
[ 1832.101779][T13883]  do_sock_setsockopt+0x149/0x3a0
[ 1832.101930][T13883]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1832.102081][T13883]  ? __lock_release+0x103/0x460
[ 1832.102233][T13883]  ? fd_install+0x1d1/0x5a0
[ 1832.102396][T13883]  ? trace_lock_acquire+0x14d/0x1f0
[ 1832.102550][T13883]  ? fdget+0x52/0x1e0
[ 1832.102669][T13883]  __sys_setsockopt+0x104/0x1a0
[ 1832.102827][T13883]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1832.102974][T13883]  ? __sys_socket+0x168/0x1e0
[ 1832.103127][T13883]  ? __pfx___sys_socket+0x10/0x10
[ 1832.103284][T13883]  __x64_sys_setsockopt+0xbd/0x160
[ 1832.103447][T13883]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1832.103640][T13883]  do_syscall_64+0xc1/0x1d0
[ 1832.103798][T13883]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1832.103997][T13883] RIP: 0033:0x7f06c96db91e
[ 1832.104160][T13883] 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
[ 1832.104695][T13883] RSP: 002b:00007ffc2c25dcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1832.104928][T13883] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f06c96db91e
[ 1832.105153][T13883] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1832.105378][T13883] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1832.105606][T13883] R10: 00007ffc2c25dcdc R11: 0000000000000246 R12: 0000000000000000
[ 1832.105838][T13883] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f06c97e0000
[ 1832.106081][T13883]  </TASK>
[ 1832.112302][T13883] veth0: entered allmulticast mode
[ 1832.112871][T13883] veth1: entered allmulticast mode
[ 1832.113190][T13883] veth2: entered allmulticast mode
[ 1832.113537][T13883] veth3: entered allmulticast mode
[ 1861.912651][T13883] veth0: left allmulticast mode
[ 1861.913113][T13883] veth1: left allmulticast mode
[ 1861.913516][T13883] veth2: left allmulticast mode
[ 1861.913879][T13883] veth3: left allmulticast mode