syzbot

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platform vkms: vblank wait timed out on crtc 0
WARNING: CPU: 1 PID: 3662 at drivers/gpu/drm/drm_vblank.c:1269 drm_wait_one_vblank+0x2bc/0x500 drivers/gpu/drm/drm_vblank.c:1269
Modules linked in:
CPU: 1 PID: 3662 Comm: syz-executor151 Not tainted 6.0.0-rc5-syzkaller-00094-ga335366bad13 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
RIP: 0010:drm_wait_one_vblank+0x2bc/0x500 drivers/gpu/drm/drm_vblank.c:1269
Code: 85 f6 0f 84 a3 01 00 00 e8 31 c7 04 fd 4c 89 ef e8 69 a2 1a 00 44 89 e1 4c 89 f2 48 c7 c7 20 5e 5d 8a 48 89 c6 e8 06 46 c4 04 <0f> 0b e9 87 fe ff ff e8 08 c7 04 fd 31 ff 4c 89 ee e8 de c3 04 fd
RSP: 0018:ffffc900031b7b40 EFLAGS: 00010282

RAX: 0000000000000000 RBX: 0000000000000a22 RCX: 0000000000000000
RDX: ffff88807d508180 RSI: ffffffff81611e08 RDI: fffff52000636f5a
RBP: ffff888146a90000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88801e5d0010 R14: ffff888146f73240 R15: ffff88801e557030
FS:  00007ff5f1e35700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff5f1e14718 CR3: 0000000022d37000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 drm_fb_helper_ioctl+0x159/0x1a0 drivers/gpu/drm/drm_fb_helper.c:1240
 do_fb_ioctl+0x1d5/0x6e0 drivers/video/fbdev/core/fbmem.c:1187
 fb_ioctl+0xe7/0x150 drivers/video/fbdev/core/fbmem.c:1201
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff5f1e83c39
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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:00007ff5f1e352f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff5f1f0c4a8 RCX: 00007ff5f1e83c39
RDX: 0000000000000000 RSI: 0000000040044620 RDI: 0000000000000003
RBP: 00007ff5f1f0c4a0 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 3062662f7665642f
R13: 00007ff5f1e35300 R14: 0000000000000001 R15: 0000000000022000
 </TASK>