[ 1352.253204][ T7106] sctp: Hash tables configured (bind 32/56) [ 1385.704653][ T7271] sctp_hello (7271) used greatest stack depth: 23696 bytes left [ 1395.173761][ T7295] [ 1395.174054][ T7295] ============================= [ 1395.174242][ T7295] WARNING: suspicious RCU usage [ 1395.174411][ T7295] 6.12.0-rc4-virtme #1 Not tainted [ 1395.174602][ T7295] ----------------------------- [ 1395.174773][ T7295] net/core/dev.c:876 RCU-list traversed in non-reader section!! [ 1395.175015][ T7295] [ 1395.175015][ T7295] other info that might help us debug this: [ 1395.175015][ T7295] [ 1395.175548][ T7295] [ 1395.175548][ T7295] rcu_scheduler_active = 2, debug_locks = 1 [ 1395.175789][ T7295] 1 lock held by sctp_hello/7295: [ 1395.175956][ T7295] #0: ffff88800a302898 (sk_lock-AF_INET6){+.+.}-{0:0}, at: sctp_bind+0x1f/0xe0 [sctp] [ 1395.176663][ T7295] [ 1395.176663][ T7295] stack backtrace: [ 1395.176872][ T7295] CPU: 3 UID: 0 PID: 7295 Comm: sctp_hello Not tainted 6.12.0-rc4-virtme #1 [ 1395.177156][ T7295] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1395.177523][ T7295] Call Trace: [ 1395.177653][ T7295] [ 1395.177746][ T7295] dump_stack_lvl+0xb0/0xd0 [ 1395.177919][ T7295] lockdep_rcu_suspicious+0x1ea/0x280 [ 1395.178095][ T7295] dev_get_by_index_rcu+0x14f/0x190 [ 1395.178266][ T7295] sctp_v6_available+0xaf/0x3a0 [sctp] [ 1395.178467][ T7295] sctp_do_bind+0x128/0x5f0 [sctp] [ 1395.178663][ T7295] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 1395.178874][ T7295] sctp_bind+0x86/0xe0 [sctp] [ 1395.179082][ T7295] inet6_bind_sk+0xd0/0x1c0 [ 1395.179246][ T7295] ? __pfx_inet6_bind_sk+0x10/0x10 [ 1395.179408][ T7295] ? __might_fault+0xc3/0x170 [ 1395.179586][ T7295] __sys_bind+0x114/0x1d0 [ 1395.179711][ T7295] ? __pfx___sys_bind+0x10/0x10 [ 1395.179870][ T7295] ? __up_read+0x1a7/0x780 [ 1395.180043][ T7295] ? do_user_addr_fault+0x972/0xe30 [ 1395.180219][ T7295] ? do_user_addr_fault+0x97c/0xe30 [ 1395.180389][ T7295] __x64_sys_bind+0x72/0xb0 [ 1395.180555][ T7295] do_syscall_64+0xc1/0x1d0 [ 1395.180720][ T7295] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 1395.180919][ T7295] RIP: 0033:0x7fd82c848b2b [ 1395.181092][ T7295] 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 [ 1395.181644][ T7295] RSP: 002b:00007fff8b39e6f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000031 [ 1395.181899][ T7295] RAX: ffffffffffffffda RBX: 00007fff8b39e8e8 RCX: 00007fd82c848b2b [ 1395.182146][ T7295] RDX: 000000000000001c RSI: 00007fff8b39e730 RDI: 0000000000000005 [ 1395.182390][ T7295] RBP: 0000000000000005 R08: 1999999999999999 R09: 0000000000000000 [ 1395.182634][ T7295] R10: 00007fd82c819d90 R11: 0000000000000202 R12: 00007fff8b39f9ee [ 1395.182873][ T7295] R13: 0000000000000000 R14: 0000000000403e00 R15: 00007fd82ca53000 [ 1395.183139][ T7295]