Warning: Permanently added '10.128.0.150' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 46.170422][ C1] vkms_vblank_simulate: vblank timer overrun [ 46.171742][ C1] vkms_vblank_simulate: vblank timer overrun executing program [ 46.173054][ C1] vkms_vblank_simulate: vblank timer overrun [ 46.174372][ C1] hrtimer: interrupt took 3952280 ns [ 46.177503][ T4032] ------------[ cut here ]------------ [ 46.178338][ C1] vkms_vblank_simulate: vblank timer overrun [ 46.178751][ T4032] WARNING: CPU: 0 PID: 4032 at drivers/gpu/drm/vkms/vkms_crtc.c:103 vkms_get_vblank_timestamp+0x1a4/0x1d4 [ 46.182419][ T4032] Modules linked in: [ 46.183233][ T4032] CPU: 0 PID: 4032 Comm: syz-executor171 Not tainted 5.15.176-syzkaller #0 [ 46.184976][ T4032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 46.187059][ T4032] pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 46.188561][ T4032] pc : vkms_get_vblank_timestamp+0x1a4/0x1d4 [ 46.189832][ T4032] lr : vkms_get_vblank_timestamp+0x1a4/0x1d4 [ 46.191039][ T4032] sp : ffff80001d6c71b0 [ 46.191967][ T4032] x29: ffff80001d6c71b0 x28: ffff80001d6c7270 x27: ffff0000caed4ee8 [ 46.193686][ T4032] x26: ffff80001d6c7260 x25: 1ffff00003ad8e4e x24: 0000000000000000 [ 46.195320][ T4032] x23: ffff0000caed4000 x22: dfff800000000000 x21: 0000000abe0f9ab1 [ 46.196933][ T4032] x20: 0000000abe0f9ab1 x19: ffff80001d6c7270 x18: ffff80001d6c7000 [ 46.198585][ T4032] x17: 0000000000000000 x16: ffff800008305354 x15: 000000000000b8fa [ 46.200303][ T4032] x14: ffff8000171f0500 x13: dfff800000000000 x12: ffff700003ad8e48 [ 46.201936][ T4032] x11: 0000000000000003 x10: 0000000000000000 x9 : ffff0000cb2d3680 [ 46.203592][ T4032] x8 : ffff80000b89673c x7 : 0000000000000000 x6 : 0000000000000000 [ 46.205240][ T4032] x5 : 0000000000000020 x4 : 0000000000000000 x3 : 0000000000000000 [ 46.206902][ T4032] x2 : ffff80001d6c7270 x1 : 0000000abe0f9ab1 x0 : 0000000abe0f9ab1 [ 46.208505][ T4032] Call trace: [ 46.209188][ T4032] vkms_get_vblank_timestamp+0x1a4/0x1d4 [ 46.210387][ T4032] drm_update_vblank_count+0x23c/0xb10 [ 46.211528][ T4032] drm_vblank_disable_and_save+0xc8/0x344 [ 46.212719][ T4032] drm_crtc_vblank_off+0x254/0x7c4 [ 46.213812][ T4032] vkms_crtc_atomic_disable+0x20/0x30 [ 46.214919][ T4032] drm_atomic_helper_commit_modeset_disables+0xa10/0x1488 [ 46.216329][ T4032] vkms_atomic_commit_tail+0x5c/0x20c [ 46.217389][ T4032] commit_tail+0x274/0x3cc [ 46.218317][ T4032] drm_atomic_helper_commit+0x5fc/0x644 [ 46.219498][ T4032] drm_atomic_commit+0xd8/0xf8 [ 46.220561][ T4032] drm_client_modeset_commit_atomic+0x594/0x730 [ 46.221794][ T4032] drm_client_modeset_commit_locked+0xd0/0x4a8 [ 46.223130][ T4032] drm_client_modeset_commit+0x50/0x7c [ 46.224280][ T4032] drm_fbdev_client_restore+0xe8/0x17c [ 46.225424][ T4032] drm_client_dev_restore+0x12c/0x248 [ 46.226639][ T4032] drm_release+0x4dc/0x654 [ 46.227569][ T4032] __fput+0x1c4/0x800 [ 46.228364][ T4032] ____fput+0x20/0x30 [ 46.229250][ T4032] task_work_run+0x130/0x1e4 [ 46.230195][ T4032] do_exit+0x670/0x20bc [ 46.231023][ T4032] do_group_exit+0x110/0x268 [ 46.232038][ T4032] __wake_up_parent+0x0/0x60 [ 46.233001][ T4032] invoke_syscall+0x98/0x2b8 [ 46.233968][ T4032] el0_svc_common+0x138/0x258 [ 46.234888][ T4032] do_el0_svc+0x58/0x14c [ 46.235745][ T4032] el0_svc+0x7c/0x1f0 [ 46.236625][ T4032] el0t_64_sync_handler+0x84/0xe4 [ 46.237685][ T4032] el0t_64_sync+0x1a0/0x1a4 [ 46.238588][ T4032] irq event stamp: 1328 [ 46.239589][ T4032] hardirqs last enabled at (1327): [] _raw_spin_unlock_irq+0x9c/0x134 [ 46.241612][ T4032] hardirqs last disabled at (1328): [] _raw_spin_lock_irq+0x38/0x13c [ 46.243732][ T4032] softirqs last enabled at (502): [] handle_softirqs+0xb88/0xdbc [ 46.245726][ T4032] softirqs last disabled at (491): [] __irq_exit_rcu+0x268/0x4d8 [ 46.247762][ T4032] ---[ end trace 7593914e2dd24600 ]---