[ 333.854931][ T2615] sctp: Hash tables configured (bind 32/56) [ 377.850391][ T2800] [ 377.850791][ T2800] ============================= [ 377.850986][ T2800] WARNING: suspicious RCU usage [ 377.851184][ T2800] 6.12.0-rc4-virtme #1 Not tainted [ 377.851718][ T2800] ----------------------------- [ 377.851918][ T2800] net/core/dev.c:876 RCU-list traversed in non-reader section!! [ 377.852203][ T2800] [ 377.852203][ T2800] other info that might help us debug this: [ 377.852203][ T2800] [ 377.852603][ T2800] [ 377.852603][ T2800] rcu_scheduler_active = 2, debug_locks = 1 [ 377.852907][ T2800] 1 lock held by sctp_hello/2800: [ 377.853103][ T2800] #0: ffff88800c703b98 (sk_lock-AF_INET6){+.+.}-{0:0}, at: sctp_bind+0x1f/0xe0 [sctp] [ 377.853566][ T2800] [ 377.853566][ T2800] stack backtrace: [ 377.853866][ T2800] CPU: 3 UID: 0 PID: 2800 Comm: sctp_hello Not tainted 6.12.0-rc4-virtme #1 [ 377.854685][ T2800] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 377.855121][ T2800] Call Trace: [ 377.855273][ T2800] [ 377.855376][ T2800] dump_stack_lvl+0xb0/0xd0 [ 377.855576][ T2800] lockdep_rcu_suspicious+0x1ea/0x280 [ 377.855781][ T2800] dev_get_by_index_rcu+0x14f/0x190 [ 377.855992][ T2800] sctp_v6_available+0xaf/0x3a0 [sctp] [ 377.856225][ T2800] sctp_do_bind+0x128/0x5f0 [sctp] [ 377.856460][ T2800] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 377.856702][ T2800] sctp_bind+0x86/0xe0 [sctp] [ 377.856927][ T2800] inet6_bind_sk+0xd0/0x1c0 [ 377.857123][ T2800] ? __pfx_inet6_bind_sk+0x10/0x10 [ 377.857315][ T2800] ? __might_fault+0xc3/0x170 [ 377.857533][ T2800] __sys_bind+0x114/0x1d0 [ 377.857688][ T2800] ? __pfx___sys_bind+0x10/0x10 [ 377.857897][ T2800] ? __up_read+0x1a7/0x780 [ 377.858105][ T2800] ? do_user_addr_fault+0x972/0xe30 [ 377.858313][ T2800] ? do_user_addr_fault+0x97c/0xe30 [ 377.858508][ T2800] __x64_sys_bind+0x72/0xb0 [ 377.858713][ T2800] do_syscall_64+0xc1/0x1d0 [ 377.858913][ T2800] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 377.859149][ T2800] RIP: 0033:0x7f4efd176b2b [ 377.859353][ T2800] 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 [ 377.860019][ T2800] RSP: 002b:00007fff79efedf8 EFLAGS: 00000202 ORIG_RAX: 0000000000000031 [ 377.860328][ T2800] RAX: ffffffffffffffda RBX: 00007fff79efefe8 RCX: 00007f4efd176b2b [ 377.860628][ T2800] RDX: 000000000000001c RSI: 00007fff79efee30 RDI: 0000000000000005 [ 377.860893][ T2800] RBP: 0000000000000005 R08: 1999999999999999 R09: 0000000000000000 [ 377.861160][ T2800] R10: 00007f4efd147d90 R11: 0000000000000202 R12: 00007fff79eff9ee [ 377.861443][ T2800] R13: 0000000000000000 R14: 0000000000403e00 R15: 00007f4efd381000 [ 377.861762][ T2800]