[ 1851.371627][ T9771] 
[ 1851.371767][ T9771] =============================
[ 1851.371936][ T9771] WARNING: suspicious RCU usage
[ 1851.372504][ T9771] 6.12.0-rc4-virtme #1 Not tainted
[ 1851.372682][ T9771] -----------------------------
[ 1851.372856][ T9771] net/ipv6/ip6mr.c:132 RCU-list traversed in non-reader section!!
[ 1851.373115][ T9771] 
[ 1851.373115][ T9771] other info that might help us debug this:
[ 1851.373115][ T9771] 
[ 1851.373437][ T9771] 
[ 1851.373437][ T9771] rcu_scheduler_active = 2, debug_locks = 1
[ 1851.373676][ T9771] no locks held by smcrouted/9771.
[ 1851.373852][ T9771] 
[ 1851.373852][ T9771] stack backtrace:
[ 1851.374089][ T9771] CPU: 0 UID: 0 PID: 9771 Comm: smcrouted Not tainted 6.12.0-rc4-virtme #1
[ 1851.374407][ T9771] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1851.374787][ T9771] Call Trace:
[ 1851.374917][ T9771]  <TASK>
[ 1851.375012][ T9771]  dump_stack_lvl+0xb0/0xd0
[ 1851.375211][ T9771]  lockdep_rcu_suspicious+0x1ea/0x280
[ 1851.375387][ T9771]  ip6mr_get_table+0x142/0x190
[ 1851.375563][ T9771]  ip6_mroute_setsockopt+0x185/0x12d0
[ 1851.375737][ T9771]  ? __pfx_ip6_mroute_setsockopt+0x10/0x10
[ 1851.375958][ T9771]  ? find_held_lock+0x2c/0x110
[ 1851.376138][ T9771]  ? __lock_release+0x103/0x460
[ 1851.376337][ T9771]  ? __might_fault+0x11b/0x170
[ 1851.376507][ T9771]  ? __pfx___lock_release+0x10/0x10
[ 1851.376674][ T9771]  ? trace_lock_acquire+0x14d/0x1f0
[ 1851.376841][ T9771]  ? __might_fault+0xc3/0x170
[ 1851.377006][ T9771]  ? lock_acquire+0x32/0xc0
[ 1851.377169][ T9771]  ? __might_fault+0xc3/0x170
[ 1851.377337][ T9771]  ? __might_fault+0x11b/0x170
[ 1851.377509][ T9771]  do_ipv6_setsockopt+0x705/0x34e0
[ 1851.377686][ T9771]  ? __lock_release+0xf0/0x460
[ 1851.377857][ T9771]  ? __pfx_do_ipv6_setsockopt+0x10/0x10
[ 1851.378022][ T9771]  ? __pfx_lock_acquire.part.0+0x10/0x10
[ 1851.378192][ T9771]  ? rcu_read_lock_any_held+0x43/0xb0
[ 1851.378358][ T9771]  ? validate_chain+0x1fe/0xae0
[ 1851.378529][ T9771]  ? is_bpf_text_address+0x67/0x120
[ 1851.378706][ T9771]  ? __pfx_validate_chain+0x10/0x10
[ 1851.378877][ T9771]  ? hlock_class+0x4e/0x130
[ 1851.379057][ T9771]  ? mark_lock+0x38/0x3e0
[ 1851.379197][ T9771]  ? __lock_acquire+0xb3f/0x1580
[ 1851.379370][ T9771]  ? find_held_lock+0x2c/0x110
[ 1851.379548][ T9771]  ? ipv6_setsockopt+0x7f/0xe0
[ 1851.379713][ T9771]  ipv6_setsockopt+0x7f/0xe0
[ 1851.379885][ T9771]  rawv6_setsockopt+0xb7/0x550
[ 1851.380056][ T9771]  ? __pfx_rawv6_setsockopt+0x10/0x10
[ 1851.380243][ T9771]  ? __lock_acquire+0xb3f/0x1580
[ 1851.380411][ T9771]  ? kfree+0x2d/0x340
[ 1851.380544][ T9771]  do_sock_setsockopt+0x149/0x3a0
[ 1851.380713][ T9771]  ? __pfx_do_sock_setsockopt+0x10/0x10
[ 1851.380876][ T9771]  ? __lock_release+0x103/0x460
[ 1851.381037][ T9771]  ? fd_install+0x1d1/0x5a0
[ 1851.381202][ T9771]  ? trace_lock_acquire+0x14d/0x1f0
[ 1851.381367][ T9771]  ? fdget+0x52/0x1e0
[ 1851.381493][ T9771]  __sys_setsockopt+0x104/0x1a0
[ 1851.381659][ T9771]  ? __pfx___sys_setsockopt+0x10/0x10
[ 1851.381826][ T9771]  ? __sys_socket+0x168/0x1e0
[ 1851.381993][ T9771]  ? __pfx___sys_socket+0x10/0x10
[ 1851.382181][ T9771]  __x64_sys_setsockopt+0xbd/0x160
[ 1851.382347][ T9771]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 1851.382550][ T9771]  do_syscall_64+0xc1/0x1d0
[ 1851.382722][ T9771]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 1851.382923][ T9771] RIP: 0033:0x7f77dd41991e
[ 1851.383095][ T9771] 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
[ 1851.383665][ T9771] RSP: 002b:00007ffd7992a678 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
[ 1851.383920][ T9771] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f77dd41991e
[ 1851.384165][ T9771] RDX: 00000000000000c8 RSI: 0000000000000029 RDI: 0000000000000008
[ 1851.384402][ T9771] RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000000000
[ 1851.384643][ T9771] R10: 00007ffd7992a69c R11: 0000000000000246 R12: 0000000000000000
[ 1851.384895][ T9771] R13: 0000000000402650 R14: 0000000000411dd8 R15: 00007f77dd51e000
[ 1851.385147][ T9771]  </TASK>
[ 1851.393509][ T9771] veth0: entered allmulticast mode
[ 1851.394141][ T9771] veth1: entered allmulticast mode
[ 1851.394457][ T9771] veth2: entered allmulticast mode
[ 1851.394799][ T9771] veth3: entered allmulticast mode
[ 1881.486246][ T9771] veth0: left allmulticast mode
[ 1881.486560][ T9771] veth1: left allmulticast mode
[ 1881.486832][ T9771] veth2: left allmulticast mode
[ 1881.487099][ T9771] veth3: left allmulticast mode