[ 6648.487712][T26110] 
[ 6648.488017][T26110] =============================
[ 6648.488326][T26110] WARNING: suspicious RCU usage
[ 6648.488573][T26110] 6.12.0-rc6-virtme #1 Not tainted
[ 6648.488810][T26110] -----------------------------
[ 6648.489042][T26110] net/core/dev.c:876 RCU-list traversed in non-reader section!!
[ 6648.489368][T26110] 
[ 6648.489368][T26110] other info that might help us debug this:
[ 6648.489368][T26110] 
[ 6648.489705][T26110] 
[ 6648.489705][T26110] rcu_scheduler_active = 2, debug_locks = 1
[ 6648.489963][T26110] 1 lock held by sctp_hello/26110:
[ 6648.490142][T26110]  #0: ffff88800ca73b98 (sk_lock-AF_INET6){+.+.}-{0:0}, at: sctp_bind+0x1f/0xe0 [sctp]
[ 6648.490541][T26110] 
[ 6648.490541][T26110] stack backtrace:
[ 6648.491079][T26110] CPU: 2 UID: 0 PID: 26110 Comm: sctp_hello Not tainted 6.12.0-rc6-virtme #1
[ 6648.491385][T26110] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 6648.491917][T26110] Call Trace:
[ 6648.492051][T26110]  <TASK>
[ 6648.492149][T26110]  dump_stack_lvl+0xb0/0xd0
[ 6648.492342][T26110]  lockdep_rcu_suspicious+0x1ea/0x280
[ 6648.492517][T26110]  dev_get_by_index_rcu+0x14f/0x190
[ 6648.492692][T26110]  sctp_v6_available+0xaf/0x3a0 [sctp]
[ 6648.492901][T26110]  sctp_do_bind+0x128/0x5f0 [sctp]
[ 6648.493106][T26110]  ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 6648.493325][T26110]  sctp_bind+0x86/0xe0 [sctp]
[ 6648.493621][T26110]  inet6_bind_sk+0xd0/0x1c0
[ 6648.493794][T26110]  ? __pfx_inet6_bind_sk+0x10/0x10
[ 6648.493961][T26110]  ? __might_fault+0x11b/0x170
[ 6648.494139][T26110]  __sys_bind+0x114/0x1d0
[ 6648.494269][T26110]  ? __pfx___sys_bind+0x10/0x10
[ 6648.494547][T26110]  ? __up_read+0x1a7/0x780
[ 6648.494726][T26110]  ? do_user_addr_fault+0x972/0xe30
[ 6648.494896][T26110]  ? do_user_addr_fault+0x97c/0xe30
[ 6648.495068][T26110]  __x64_sys_bind+0x72/0xb0
[ 6648.495239][T26110]  do_syscall_64+0xc1/0x1d0
[ 6648.495410][T26110]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 6648.495616][T26110] RIP: 0033:0x7f0458628b2b
[ 6648.495788][T26110] Code: 73 01 c3 48 8b 0d d5 92 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 31 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a5 92 1b 00 f7 d8 64 89 01 48
[ 6648.496361][T26110] RSP: 002b:00007ffdb2190e78 EFLAGS: 00000206 ORIG_RAX: 0000000000000031
[ 6648.496619][T26110] RAX: ffffffffffffffda RBX: 00007ffdb2191068 RCX: 00007f0458628b2b
[ 6648.496865][T26110] RDX: 000000000000001c RSI: 00007ffdb2190eb0 RDI: 0000000000000005
[ 6648.497114][T26110] RBP: 0000000000000005 R08: 1999999999999999 R09: 0000000000000000
[ 6648.497480][T26110] R10: 00007f04585f9d90 R11: 0000000000000206 R12: 00007ffdb21919da
[ 6648.497730][T26110] R13: 0000000000000000 R14: 0000000000403e00 R15: 00007f0458833000
[ 6648.497996][T26110]  </TASK>