[ 313.520550][ T1880] sctp: Hash tables configured (bind 32/56) [ 344.674075][ T2041] sctp_hello (2041) used greatest stack depth: 23824 bytes left [ 354.317506][ T2069] [ 354.317769][ T2069] ============================= [ 354.317941][ T2069] WARNING: suspicious RCU usage [ 354.319261][ T2069] 6.12.0-rc4-virtme #1 Not tainted [ 354.319508][ T2069] ----------------------------- [ 354.319761][ T2069] net/core/dev.c:876 RCU-list traversed in non-reader section!! [ 354.320061][ T2069] [ 354.320061][ T2069] other info that might help us debug this: [ 354.320061][ T2069] [ 354.320411][ T2069] [ 354.320411][ T2069] rcu_scheduler_active = 2, debug_locks = 1 [ 354.320807][ T2069] 1 lock held by sctp_hello/2069: [ 354.320973][ T2069] #0: ffff888005f1bb98 (sk_lock-AF_INET6){+.+.}-{0:0}, at: sctp_bind+0x1f/0xe0 [sctp] [ 354.321366][ T2069] [ 354.321366][ T2069] stack backtrace: [ 354.321569][ T2069] CPU: 3 UID: 0 PID: 2069 Comm: sctp_hello Not tainted 6.12.0-rc4-virtme #1 [ 354.321852][ T2069] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 354.322210][ T2069] Call Trace: [ 354.322336][ T2069] [ 354.322424][ T2069] dump_stack_lvl+0xb0/0xd0 [ 354.322600][ T2069] lockdep_rcu_suspicious+0x1ea/0x280 [ 354.322770][ T2069] dev_get_by_index_rcu+0x14f/0x190 [ 354.322941][ T2069] sctp_v6_available+0xaf/0x3a0 [sctp] [ 354.323139][ T2069] sctp_do_bind+0x128/0x5f0 [sctp] [ 354.323338][ T2069] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 354.323548][ T2069] sctp_bind+0x86/0xe0 [sctp] [ 354.323746][ T2069] inet6_bind_sk+0xd0/0x1c0 [ 354.323910][ T2069] ? __pfx_inet6_bind_sk+0x10/0x10 [ 354.324072][ T2069] ? __might_fault+0xc3/0x170 [ 354.324245][ T2069] __sys_bind+0x114/0x1d0 [ 354.324370][ T2069] ? __pfx___sys_bind+0x10/0x10 [ 354.324530][ T2069] ? __up_read+0x1a7/0x780 [ 354.324716][ T2069] ? do_user_addr_fault+0x972/0xe30 [ 354.324885][ T2069] ? do_user_addr_fault+0x97c/0xe30 [ 354.325054][ T2069] __x64_sys_bind+0x72/0xb0 [ 354.325214][ T2069] do_syscall_64+0xc1/0x1d0 [ 354.325380][ T2069] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 354.325585][ T2069] RIP: 0033:0x7f23a71fab2b [ 354.325753][ T2069] 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 [ 354.326316][ T2069] RSP: 002b:00007ffcb479ae68 EFLAGS: 00000202 ORIG_RAX: 0000000000000031 [ 354.326571][ T2069] RAX: ffffffffffffffda RBX: 00007ffcb479b058 RCX: 00007f23a71fab2b [ 354.326814][ T2069] RDX: 000000000000001c RSI: 00007ffcb479aea0 RDI: 0000000000000005 [ 354.327060][ T2069] RBP: 0000000000000005 R08: 1999999999999999 R09: 0000000000000000 [ 354.327303][ T2069] R10: 00007f23a71cbd90 R11: 0000000000000202 R12: 00007ffcb479c9ee [ 354.327545][ T2069] R13: 0000000000000000 R14: 0000000000403e00 R15: 00007f23a7405000 [ 354.327955][ T2069]