rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...0: (1 ticks this GP) idle=9a5/1/0x4000000000000000 softirq=4277/4277 fqs=5250 (detected by 1, t=10502 jiffies, g=3565, q=270) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 3528 Comm: syz-executor291 Not tainted 5.15.150-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0xc/0x60 kernel/kcov.c:197 Code: 89 fb e8 17 00 00 00 48 8b 3d d8 58 63 0c 48 89 de 5b e9 57 e5 48 00 cc cc cc cc cc cc cc 48 8b 04 24 65 48 8b 0d 24 3a 82 7e <65> 8b 15 25 3a 82 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 RSP: 0018:ffffc90000007d38 EFLAGS: 00000046 RAX: ffffffff816f6ccc RBX: ffff888078ef9b40 RCX: ffff888018babb80 RDX: 0000000080010001 RSI: 0000000000000001 RDI: ffff888078ef9b40 RBP: ffffc90000007eb0 R08: ffffffff816f3c5c R09: ffff888078ef9b48 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b9a2a200 R13: ffff8880b9a2a300 R14: ffff888078ef9b40 R15: dffffc0000000000 FS: 0000555555dc2380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000600 CR3: 0000000070d7f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_deactivate+0xc/0x1e0 kernel/time/hrtimer.c:480 __run_hrtimer kernel/time/hrtimer.c:1654 [inline] __hrtimer_run_queues+0x31d/0xcf0 kernel/time/hrtimer.c:1750 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline] __sysvec_apic_timer_interrupt+0x139/0x470 arch/x86/kernel/apic/apic.c:1102 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:40 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:75 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:107 [inline] RIP: 0010:lock_is_held_type+0x69/0x180 kernel/locking/lockdep.c:5662 Code: 8b 2d 2b d4 e6 75 41 83 bd ec 0a 00 00 00 0f 85 db 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c 8f 04 24 4c 8b 24 24 48 c7 c7 00 23 8b 8a e8 1a 12 00 00 65 ff 05 33 dd e6 75 41 83 RSP: 0018:ffffc900021e7c48 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffffff8c947bc0 RCX: 0000000080000000 RDX: ffff888018babb80 RSI: 00000000ffffffff RDI: ffffffff8c91f720 RBP: 00000000ffffffff R08: ffffffff8178bafb R09: fffffbfff1f79e19 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246 R13: ffff888018babb80 R14: 00000000ffffffff R15: ffffffff8c91f720 task_css_set include/linux/cgroup.h:483 [inline] cgroup_sk_alloc+0x1e5/0x3c0 kernel/cgroup/cgroup.c:6734 sk_alloc+0x204/0x310 net/core/sock.c:1925 __netlink_create+0x6b/0x2c0 net/netlink/af_netlink.c:647 netlink_create+0x3a9/0x500 net/netlink/af_netlink.c:710 __sock_create+0x460/0x8d0 net/socket.c:1486 sock_create net/socket.c:1537 [inline] __sys_socket+0x132/0x370 net/socket.c:1579 __do_sys_socket net/socket.c:1588 [inline] __se_sys_socket net/socket.c:1586 [inline] __x64_sys_socket+0x76/0x80 net/socket.c:1586 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fcb92be1ee9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff75d2b908 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcb92be1ee9 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 00000000000f4240 R08: 0000000100000000 R09: 0000000100000000 R10: 0000000100000000 R11: 0000000000000246 R12: 00007fff75d2b960 R13: 000000000002f98a R14: 00007fff75d2b92c R15: 0000000000000003 INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.417 msecs