------------[ cut here ]------------ platform vkms: [drm] vblank wait timed out on crtc 0 WARNING: CPU: 1 PID: 7135 at drivers/gpu/drm/drm_vblank.c:1307 drm_wait_one_vblank+0x2e3/0x580 drivers/gpu/drm/drm_vblank.c:1307 Modules linked in: CPU: 1 UID: 0 PID: 7135 Comm: syz.2.319 Not tainted 6.14.0-syzkaller-03576-g1e1ba8d23dae #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:drm_wait_one_vblank+0x2e3/0x580 drivers/gpu/drm/drm_vblank.c:1307 Code: ed 0f 84 f4 01 00 00 e8 3b 28 59 fc 48 89 ef e8 b3 87 8b 00 44 89 e1 4c 89 ea 48 c7 c7 a0 dd e8 8b 48 89 c6 e8 1e d3 18 fc 90 <0f> 0b 90 90 e9 61 fe ff ff e8 0f 28 59 fc 48 89 ef e8 57 69 fc 05 RSP: 0018:ffffc9000ca7fb20 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888024edc000 RCX: ffffc9000cc89000 RDX: 0000000000080000 RSI: ffffffff817aae25 RDI: 0000000000000001 RBP: ffff88814272d010 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880245a6bc0 R14: 1ffff9200194ff67 R15: 0000000000001fe4 FS: 00007f59b11356c0(0000) GS:ffff888124f5a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fff1ff8 CR3: 00000000611ca000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drm_fb_helper_ioctl+0x156/0x1a0 drivers/gpu/drm/drm_fb_helper.c:1099 do_fb_ioctl+0x3d2/0x7e0 drivers/video/fbdev/core/fb_chrdev.c:155 fb_ioctl+0xe5/0x150 drivers/video/fbdev/core/fb_chrdev.c:169 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f59b038d169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f59b1135038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f59b05a5fa0 RCX: 00007f59b038d169 RDX: 0000000000000000 RSI: 0000000040044620 RDI: 0000000000000005 RBP: 00007f59b040e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f59b05a5fa0 R15: 00007fffa9be0ee8