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WARNING in drm_wait_one_vblank

Status: upstream: reported C repro on 2021/05/05 14:02
Subsystems: dri
[Documentation on labels]
Reported-by: syzbot+6f7fe2dbc479dca0ed17@syzkaller.appspotmail.com
First crash: 944d, last: 9d03h
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in vkms_vblank_simulate (log)
Repro: C syz .config
  
▶ ▼ Discussions (8)
Title Replies (including bot) Last reply
[syzbot] Monthly dri report (Nov 2023) 0 (1) 2023/11/30 20:33
[syzbot] Monthly dri report (Oct 2023) 0 (1) 2023/10/30 12:59
[syzbot] Monthly dri report (Sep 2023) 0 (1) 2023/09/28 11:42
[syzbot] Monthly dri report (Aug 2023) 0 (1) 2023/08/27 14:06
[syzbot] Monthly dri report (Jul 2023) 0 (1) 2023/07/26 20:38
[syzbot] Monthly dri report (Jun 2023) 0 (1) 2023/06/26 18:48
[syzbot] Monthly dri report (May 2023) 0 (1) 2023/05/25 09:36
[syzbot] WARNING in drm_wait_one_vblank 2 (5) 2022/12/09 15:22
▶ ▼ Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in drm_wait_one_vblank origin:upstream C 9 10d 245d 0/3 upstream: reported C repro on 2023/03/31 07:06
linux-6.1 WARNING in drm_wait_one_vblank origin:upstream C 8 7d03h 240d 0/3 upstream: reported C repro on 2023/04/05 12:39
▶ ▼ Last patch testing requests (11)
Created Duration User Patch Repo Result
2023/11/06 15:18 24m retest repro upstream OK log
2023/11/06 15:18 29m retest repro upstream OK log
2023/11/06 09:22 22m retest repro upstream OK log
2023/11/06 09:22 28m retest repro upstream OK log
2023/11/06 08:32 23m retest repro linux-next OK log
2023/11/06 08:32 22m retest repro linux-next OK log
2023/11/06 06:44 22m retest repro upstream OK log
2023/11/06 06:44 22m retest repro upstream OK log
2023/11/06 02:59 22m retest repro upstream OK log
2023/11/06 02:59 22m retest repro upstream OK log
2022/12/09 10:51 12m code@siddh.me https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master report log
▶ ▼ Fix bisection attempts (2)
Created Duration User Patch Repo Result
2023/11/22 12:05 2h22m bisect fix upstream job log (0) log
2022/06/26 10:14 20m bisect fix upstream job log (0) log

Sample crash report:
WARNING: CPU: 0 PID: 5059 at drivers/gpu/drm/drm_vblank.c:1310 drm_wait_one_vblank+0x32d/0x540 drivers/gpu/drm/drm_vblank.c:1310
Modules linked in:

CPU: 0 PID: 5059 Comm: syz-executor124 Not tainted 6.6.0-rc3-syzkaller-00025-g50768a425b46 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:drm_wait_one_vblank+0x32d/0x540 drivers/gpu/drm/drm_vblank.c:1310
Code: 4d 85 ed 0f 84 49 01 00 00 e8 1f 3f cf fc 4c 89 e7 e8 37 20 7a 00 89 e9 4c 89 ea 48 c7 c7 60 f5 fd 8a 48 89 c6 e8 63 67 95 fc <0f> 0b e9 16 fe ff ff e8 f7 3e cf fc 48 8d 7b 08 48 b8 00 00 00 00
RSP: 0018:ffffc90003bffb38 EFLAGS: 00010286

RAX: 0000000000000000 RBX: ffff88801c6f8000 RCX: 0000000000000000
RDX: ffff888076718000 RSI: ffffffff814df0c6 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 205d393530355420 R12: ffff88801be2c010
R13: ffff888017f45f00 R14: 1ffff9200077ff69 R15: 00000000000010ea
FS:  0000555556b3c380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 00000000292a9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 drm_fb_helper_ioctl+0x152/0x190 drivers/gpu/drm/drm_fb_helper.c:1092
 do_fb_ioctl+0x3d0/0x7d0 drivers/video/fbdev/core/fb_chrdev.c:155
 fb_ioctl+0xf1/0x160 drivers/video/fbdev/core/fb_chrdev.c:169
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl fs/ioctl.c:857 [inline]
 __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f37b666ede9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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:00007ffcf8c9e7b8 EFLAGS: 00000246
 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffcf8c9e7d0 RCX: 00007f37b666ede9
RDX: 0000000000000000 RSI: 0000000040044620 RDI: 0000000000000004
RBP: 0000000000000001 R08: 0000000000000140 R09: 0000000000000140
R10: 0000000000000140 R11: 0000000000000246 R12: 000000000001318e
R13: 00007ffcf8c9e7cc R14: 00007ffcf8c9e7f0 R15: 00007ffcf8c9e7e0
 </TASK>

Crashes (375):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/27 04:48 upstream 50768a425b46 0b6a67ac .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/09/12 05:53 upstream 0bb80ecc33a8 59da8366 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in drm_wait_one_vblank
2023/06/12 03:10 upstream 4c605260bc60 7086cdb9 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/03/31 15:33 upstream 62bad54b26db f325deb0 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2022/12/27 12:19 upstream 1b929c02afd3 9da18ae8 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2022/09/17 23:56 upstream a335366bad13 dd9a85ff .config console log report syz C ci-upstream-kasan-gce-selinux-root WARNING in drm_wait_one_vblank
2022/08/20 02:37 upstream 4c2d0b039c5c 26a13b38 .config strace log report syz C ci-upstream-kasan-gce-smack-root WARNING in drm_wait_one_vblank
2022/07/03 07:02 upstream 34074da5424c 1434eec0 .config strace log report syz C ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2022/05/13 21:58 upstream f3f19f939c11 107f6434 .config strace log report syz C ci-upstream-kasan-gce-selinux-root WARNING in drm_wait_one_vblank
2021/12/12 02:50 upstream 6f513529296f 49ca1f59 .config console log report syz C ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/07/15 18:39 linux-next 7c2878be5732 35d9ecc5 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2022/08/10 09:55 linux-next 6c8f479764eb c2a623d6 .config strace log report syz C ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2023/10/23 02:58 upstream fe3cfe869d5e 361b23dc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in drm_wait_one_vblank
2023/10/21 08:47 upstream c3200081020d 361b23dc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in drm_wait_one_vblank
2023/10/21 07:22 upstream c3200081020d 361b23dc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in drm_wait_one_vblank
2023/10/19 21:34 upstream dd72f9c7e512 42e1d524 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/10/16 23:51 upstream 58720809f527 342b9c55 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in drm_wait_one_vblank
2023/10/15 19:07 upstream 9a3dad63edbe 6388bc36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/10/14 15:18 upstream 727fb8376504 6388bc36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in drm_wait_one_vblank
2023/10/14 01:37 upstream ad7f1baed071 6388bc36 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/10/11 06:20 upstream 1c8b86a3799f 83165b57 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in drm_wait_one_vblank
2023/10/08 00:35 upstream b9ddbb0cde2a 5e837c76 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/10/07 20:30 upstream 82714078aee4 5e837c76 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in drm_wait_one_vblank
2023/10/06 15:55 upstream b78b18fb8ee1 db17ad9f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/09/30 22:08 upstream 9f3ebbef746f 8e26a358 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/09/28 00:47 upstream 633b47cb009d 2895a507 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in drm_wait_one_vblank
2023/09/23 19:21 upstream d90b0276af8f 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/09/22 06:16 upstream 27bbf45eae9c 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/09/15 11:24 upstream 9fdfb15a3dbf 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/09/15 07:17 upstream 9fdfb15a3dbf 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in drm_wait_one_vblank
2023/09/13 03:15 upstream a747acc0b752 59da8366 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/09/10 11:07 upstream 2a5a4326e583 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in drm_wait_one_vblank
2023/09/09 07:44 upstream a48fa7efaf11 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/09/05 12:12 upstream 3f86ed6ec0b3 8bc9053e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/09/01 20:41 upstream 99d99825fc07 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/08/27 02:20 upstream 7d2f353b2682 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/25 14:43 upstream 4f9e7fabf864 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/23 19:20 upstream 89bf6209cad6 b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in drm_wait_one_vblank
2023/08/23 01:59 upstream 53663f4103ff b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/08/15 18:27 upstream 91aa6c412d7f 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in drm_wait_one_vblank
2023/08/15 16:57 upstream 91aa6c412d7f 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/14 13:30 upstream 2ccdd1b13c59 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/12 06:29 upstream 9106536c1aa3 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in drm_wait_one_vblank
2023/08/10 20:45 upstream 374a7f47bf40 4df3089c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in drm_wait_one_vblank
2023/08/09 23:26 upstream cacc6e22932f 13ca4cd6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/07 07:26 upstream 52a93d39b17d 4ffcc9ef .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/06 03:04 upstream f6a691685962 4ffcc9ef .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/06 01:00 upstream f6a691685962 4ffcc9ef .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/08/03 11:14 upstream ec351c8f2e62 39a91c18 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/07/28 10:46 upstream 57012c57536f 92476829 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/07/28 01:48 upstream 57012c57536f 92476829 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/07/26 08:36 upstream af2e19389c2c 00adc293 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in drm_wait_one_vblank
2023/07/24 20:34 upstream 6eaae1980760 06460670 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/07/23 18:21 upstream c2782531397f 27cbe77f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in drm_wait_one_vblank
2023/07/23 08:33 upstream 725d444db6b0 27cbe77f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/07/22 12:17 upstream d192f5382581 27cbe77f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in drm_wait_one_vblank
2023/07/20 04:06 upstream bfa3037d8280 4547cdf9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in drm_wait_one_vblank
2023/07/18 12:00 upstream fdf0eaf11452 20f8b3c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in drm_wait_one_vblank
2023/07/18 03:17 upstream fdf0eaf11452 20f8b3c2 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/07/17 05:03 upstream 20edcec23f92 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/07/15 10:23 upstream 2772d7df3c93 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in drm_wait_one_vblank
2023/07/15 05:19 upstream 2772d7df3c93 35d9ecc5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/07/04 14:53 upstream 24be4d0b46bb f99c2404 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in drm_wait_one_vblank
2021/05/01 14:00 upstream d2b6f8a17919 77e2b668 .config console log report info ci-upstream-kasan-gce WARNING in drm_wait_one_vblank
2023/09/10 22:13 linux-next af3c30d33476 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2023/09/06 02:45 linux-next c50216cfa084 8bc9053e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/31 13:11 linux-next a47fc304d2b6 84803932 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/27 21:09 linux-next 626932085009 03d9c195 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/14 17:39 linux-next 21ef7b1e17d0 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2023/08/13 20:45 linux-next 21ef7b1e17d0 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2023/07/30 23:14 linux-next d7b3af5a77e8 2a0d0f29 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2023/07/29 02:03 linux-next d7b3af5a77e8 92476829 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2023/07/28 15:38 linux-next d7b3af5a77e8 92476829 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
2023/07/23 13:51 linux-next ae867bc97b71 27cbe77f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in drm_wait_one_vblank
* Struck through repros no longer work on HEAD.