------------[ cut here ]------------ platform vkms: vblank wait timed out on crtc 0 WARNING: CPU: 0 PID: 3970 at drivers/gpu/drm/drm_vblank.c:1269 drm_wait_one_vblank+0x1e1/0x200 drivers/gpu/drm/drm_vblank.c:1269 Modules linked in: CPU: 0 PID: 3970 Comm: syz-executor.1 Not tainted 5.15.171-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:drm_wait_one_vblank+0x1e1/0x200 drivers/gpu/drm/drm_vblank.c:1269 Code: fe ff ff 48 8b 7d 08 4c 8b 6f 50 4d 85 ed 74 26 e8 94 f8 04 00 44 89 e1 4c 89 ea 48 c7 c7 b0 4f b3 82 48 89 c6 e8 18 7a 7a 00 <0f> 0b e9 7a fe ff ff 4c 8b 2f eb 98 4c 8b 2f eb d5 e8 d9 96 83 00 RSP: 0018:ffffc900014cbd50 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000df6 RCX: 0000000000000000 RDX: 0000000000000003 RSI: ffffffff82ef9678 RDI: ffffffff82ef9660 RBP: ffff88810578a000 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000080000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888108797e60 R14: ffff8881085c8c30 R15: ffff8881043a0810 FS: 00007f5b5f87a6c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f64dc723d83 CR3: 000000017cefa000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drm_fb_helper_ioctl+0x86/0xa0 drivers/gpu/drm/drm_fb_helper.c:1196 do_fb_ioctl+0xbb/0x3f0 drivers/video/fbdev/core/fbmem.c:1191 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x7b/0xb0 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f5b5fd18ce9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5b5f87a0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f5b5fe38050 RCX: 00007f5b5fd18ce9 RDX: 0000000000000000 RSI: 0000000040044620 RDI: 0000000000000004 RBP: 00007f5b5fd6547a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f5b5fe38050 R15: 00007ffc10027a08