syzbot


no output from test machine

Status: upstream: reported C repro on 2020/01/10 17:08
Reported-by: syzbot+a1c013a1560eef9708ea@syzkaller.appspotmail.com
First crash: 1864d, last: 3h35m
Similar bugs (13)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream no output from test machine (2) C done 1760630 now 2627d 0/28 moderation: reported C repro on 2017/12/09 10:34
linux-6.1 no output from test machine origin:upstream missing-backport C unreliable 23264 25m 709d 0/3 upstream: reported C repro on 2023/03/10 16:35
android-49 no output from test machine C 4071 2657d 2657d 0/3 closed as invalid on 2017/11/09 10:06
android-44 no output from test machine C 26196 1902d 2136d 0/2 public: reported C repro on 2019/04/14 00:00
android-49 no output from test machine (2) C 117634 1902d 2139d 0/3 public: reported C repro on 2019/04/10 16:04
android-6-1 no output from test machine origin:upstream missing-backport C error 38791 19m 647d 0/2 premoderation: reported C repro on 2023/05/11 13:21
linux-5.15 no output from test machine origin:upstream missing-backport C 17787 3h04m 705d 0/3 upstream: reported C repro on 2023/03/15 03:10
upstream no output from test machine C 25143 2657d 2657d 0/28 closed as invalid on 2017/11/09 10:06
linux-4.19 no output from test machine f2fs ext4 C 47618 713d 2138d 0/1 upstream: reported C repro on 2019/04/11 15:08
android-5-10 no output from test machine ext4 C error 56011 now 1203d 0/2 upstream: reported C repro on 2021/11/02 11:48
android-5-15 no output from test machine f2fs ext4 origin:upstream missing-backport C error 42003 2h09m 866d 0/2 premoderation: reported C repro on 2022/10/05 11:25
android-414 no output from test machine C 39537 1902d 2138d 0/1 public: reported C repro on 2019/04/12 00:01
linux-4.14 no output from test machine nilfs2 C 40559 714d 2138d 0/1 upstream: reported C repro on 2019/04/12 02:22
Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/01/18 06:32 0m retest repro android12-5.4 error
2025/01/18 06:32 2m retest repro android12-5.4 error
2025/01/04 11:29 2m retest repro android12-5.4 error
2024/12/22 21:33 2m retest repro android12-5.4 error
2024/12/06 10:25 6m retest repro android12-5.4 error
2024/12/06 10:25 2m retest repro android12-5.4 error
2024/12/06 10:25 2m retest repro android12-5.4 error
2024/11/23 00:01 40m retest repro android12-5.4 log
2024/11/08 21:20 30m retest repro android12-5.4 log
2024/11/08 21:20 0m retest repro android12-5.4 error
Crashes (33754):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/17 07:34 android12-5.4 39762b7a60e9 40a34ec9 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/16 17:07 android12-5.4 39762b7a60e9 40a34ec9 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/16 13:57 android12-5.4 39762b7a60e9 40a34ec9 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/14 12:55 android12-5.4 39762b7a60e9 d9a046cf .config strace log syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci2-android-5-4-kasan no output from test machine
2025/02/13 08:33 android12-5.4 39762b7a60e9 b27c2402 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/11 12:14 android12-5.4 39762b7a60e9 43f51a00 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/01/31 06:15 android12-5.4 49530c73f82d 4c6ac32f .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/01/30 21:47 android12-5.4 49530c73f82d 4c6ac32f .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/01/30 09:20 android12-5.4 49530c73f82d afe4eff5 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/01/29 22:31 android12-5.4 49530c73f82d 136953f1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/01/29 20:10 android12-5.4 49530c73f82d 136953f1 .config console log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/01/29 09:57 android12-5.4 49530c73f82d 865ef71e .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/01/29 06:01 android12-5.4 49530c73f82d 865ef71e .config console log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/01/28 21:08 android12-5.4 49530c73f82d f5427d7c .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/01/28 10:11 android12-5.4 49530c73f82d 18070896 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/01/26 05:14 android12-5.4 49530c73f82d 9fbd772e .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/01/26 01:16 android12-5.4 49530c73f82d 9fbd772e .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/03 14:35 android12-5.4 58de09405d1e 1ecfa2d8 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/03 10:14 android12-5.4 58de09405d1e 1ecfa2d8 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/03 00:00 android12-5.4 58de09405d1e 07f0a0a0 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/02 14:01 android12-5.4 58de09405d1e 07f0a0a0 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/01 16:03 android12-5.4 4275fce9fe94 b294e901 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/06/30 10:11 android12-5.4 4275fce9fe94 757f06b1 .config strace log / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/06/30 08:00 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2020/01/11 21:00 https://android.googlesource.com/kernel/common android-5.4 f5f770e495ba 4c04afaa .config console log syz C ci2-android-5-4-kasan
2025/02/07 03:37 android12-5.4 cb850525fc3e 8002dd28 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/01/30 12:01 android12-5.4 49530c73f82d afe4eff5 .config console log syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/03 13:37 android12-5.4 58de09405d1e 1ecfa2d8 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/03 10:20 android12-5.4 58de09405d1e 1ecfa2d8 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/03 07:13 android12-5.4 58de09405d1e 1ecfa2d8 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/02 20:37 android12-5.4 58de09405d1e 07f0a0a0 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/02 17:52 android12-5.4 58de09405d1e 07f0a0a0 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/02 17:22 android12-5.4 58de09405d1e 07f0a0a0 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/02 05:52 android12-5.4 58de09405d1e b294e901 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/02 01:31 android12-5.4 58de09405d1e b294e901 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/01 18:29 android12-5.4 4275fce9fe94 b294e901 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/01 09:33 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/01 05:33 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/01 02:48 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/01 00:15 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/06/30 23:18 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/06/30 20:03 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/06/30 19:27 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/06/30 16:15 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/06/30 15:00 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/06/30 14:00 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/06/30 12:38 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/06/30 11:50 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/06/30 08:49 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/06/30 06:48 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/17 08:44 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/17 03:55 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/16 10:28 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/16 08:50 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/16 03:03 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/16 00:50 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/15 23:25 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/15 21:58 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/15 17:49 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/15 12:32 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/15 11:39 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/15 11:11 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/15 10:09 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/15 08:00 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/15 06:09 android12-5.4 39762b7a60e9 40a34ec9 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/15 03:34 android12-5.4 39762b7a60e9 1022af74 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/15 02:24 android12-5.4 39762b7a60e9 1022af74 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/14 21:06 android12-5.4 39762b7a60e9 1022af74 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/14 19:52 android12-5.4 39762b7a60e9 1022af74 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/14 17:31 android12-5.4 39762b7a60e9 1022af74 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/14 16:31 android12-5.4 39762b7a60e9 1022af74 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/14 11:19 android12-5.4 39762b7a60e9 d9a046cf .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/14 06:53 android12-5.4 39762b7a60e9 d9a046cf .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/14 02:46 android12-5.4 39762b7a60e9 d9a046cf .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/14 01:43 android12-5.4 39762b7a60e9 d9a046cf .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/13 22:32 android12-5.4 39762b7a60e9 a98a8417 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/13 20:24 android12-5.4 39762b7a60e9 a98a8417 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/13 20:02 android12-5.4 39762b7a60e9 a98a8417 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/13 17:21 android12-5.4 39762b7a60e9 a98a8417 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/13 12:21 android12-5.4 39762b7a60e9 b27c2402 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/13 10:46 android12-5.4 39762b7a60e9 b27c2402 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/13 10:34 android12-5.4 39762b7a60e9 b27c2402 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/13 08:05 android12-5.4 39762b7a60e9 b27c2402 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/13 05:48 android12-5.4 39762b7a60e9 b27c2402 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/13 02:07 android12-5.4 39762b7a60e9 b27c2402 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/13 00:37 android12-5.4 39762b7a60e9 b27c2402 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/12 17:56 android12-5.4 39762b7a60e9 b27c2402 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/12 15:11 android12-5.4 39762b7a60e9 b27c2402 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/12 13:43 android12-5.4 39762b7a60e9 b27c2402 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/12 06:11 android12-5.4 39762b7a60e9 f2baddf5 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/12 01:44 android12-5.4 39762b7a60e9 f2baddf5 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2025/02/11 23:50 android12-5.4 39762b7a60e9 f2baddf5 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/11 19:25 android12-5.4 39762b7a60e9 f2baddf5 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/11 15:00 android12-5.4 39762b7a60e9 f2baddf5 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/11 11:07 android12-5.4 39762b7a60e9 43f51a00 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/11 08:22 android12-5.4 39762b7a60e9 43f51a00 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/11 05:29 android12-5.4 276e526e4f9c 43f51a00 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2025/02/11 03:54 android12-5.4 276e526e4f9c 43f51a00 .config console log info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan no output from test machine
2024/07/03 17:01 android12-5.4 58de09405d1e 1ecfa2d8 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/03 01:57 android12-5.4 58de09405d1e 07f0a0a0 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/02 19:27 android12-5.4 58de09405d1e 07f0a0a0 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/02 14:17 android12-5.4 58de09405d1e 07f0a0a0 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/02 03:17 android12-5.4 58de09405d1e b294e901 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/02 01:27 android12-5.4 58de09405d1e b294e901 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/01 19:13 android12-5.4 4275fce9fe94 b294e901 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/01 17:13 android12-5.4 4275fce9fe94 b294e901 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/01 12:00 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/01 08:20 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/01 06:39 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/07/01 04:49 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2024/06/30 17:56 android12-5.4 4275fce9fe94 757f06b1 .config strace log syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan no output from test machine
2021/01/17 14:17 android12-5.4 dc04463953b2 813be542 .config console log info ci2-android-5-4-kasan
2020/01/10 17:07 https://android.googlesource.com/kernel/common android-5.4 fec52bf211da 532ec44e .config console log ci2-android-5-4-kasan
* Struck through repros no longer work on HEAD.