syzbot


WARNING in schedule_bh (2)

Status: upstream: reported C repro on 2021/06/01 12:37
Reported-by: syzbot+e89a1109c376e2c3c389@syzkaller.appspotmail.com
First crash: 557d, last: 298d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in schedule_bh 2 1000d 1056d 0/24 auto-closed as invalid on 2020/07/09 21:07
Patch testing requests:
Created Duration User Patch Repo Result
2022/08/31 02:27 26m retest repro upstream report log

Sample crash report:
floppy1: floppy timeout called
------------[ cut here ]------------
WARNING: CPU: 0 PID: 11 at drivers/block/floppy.c:1000 schedule_bh+0x5f/0x70 drivers/block/floppy.c:1000
Modules linked in:
CPU: 0 PID: 11 Comm: kworker/u16:1 Not tainted 5.17.0-rc3-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: floppy floppy_shutdown
RIP: 0010:schedule_bh+0x5f/0x70 drivers/block/floppy.c:1000
Code: d7 65 fd fc 48 89 2d 20 c8 03 0c 5b 48 c7 c2 80 d0 6a 8c 48 8b 35 f1 cc 03 0c bf 08 00 00 00 5d e9 46 9a d1 fc e8 b1 65 fd fc <0f> 0b eb d1 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 e8 9b 65 fd fc
RSP: 0018:ffffc900003cfcf8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888010feba00 RSI: ffffffff847b12df RDI: 0000000000000003
RBP: ffffffff847bc790 R08: 0000000000000000 R09: ffffffff8c6ad087
R10: ffffffff847b12af R11: 0000000000000000 R12: 0000000000000001
R13: ffffc900003cfdb8 R14: ffff888010db3e00 R15: ffff888010c71800
FS:  0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f7ea1db0 CR3: 000000001f15c000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 floppy_shutdown+0x129/0x170 drivers/block/floppy.c:1890
 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307
 worker_thread+0x657/0x1110 kernel/workqueue.c:2454
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Crashes (66):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-qemu-upstream-386 2022/02/07 21:14 upstream dfd42facf1e4 a7dab638 .config log report syz C WARNING in schedule_bh
ci-qemu-upstream 2022/02/11 20:21 upstream f1baf68e1383 8b9ca619 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2022/02/07 08:51 upstream dfd42facf1e4 a7dab638 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2022/01/17 05:43 upstream 79e06c4c4950 723cfaf0 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2022/01/16 16:22 upstream d0a231f01e5b 723cfaf0 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2022/01/14 04:18 upstream 455e73a07f6e b8d780ab .config log report info WARNING in schedule_bh
ci-qemu-upstream 2022/01/14 00:10 upstream 455e73a07f6e b8d780ab .config log report info WARNING in schedule_bh
ci-qemu-upstream 2022/01/12 20:25 upstream daadb3bd0e8d 44d1319a .config log report info WARNING in schedule_bh
ci-qemu-upstream 2022/01/10 23:37 upstream 133d9c53c9dc ddb0ab8c .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/12/08 01:33 upstream 2a987e65025e 0230ba3e .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/12/06 23:22 upstream f80ef9e49fdf 0230ba3e .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/12/06 15:14 upstream 0fcfb00b28c0 579a8754 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/12/06 05:16 upstream 944207047ca4 a617004c .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/12/06 02:16 upstream 944207047ca4 a617004c .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/12/05 07:23 upstream 79a72162048e a617004c .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/12/03 16:58 upstream 5f58da2befa5 c7c20675 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/12/02 08:58 upstream 58e1100fdc59 61f86278 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/12/02 07:11 upstream 58e1100fdc59 61f86278 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/24 16:30 upstream 5d9f4cf36721 545ab074 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/24 05:21 upstream 5d9f4cf36721 545ab074 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/22 01:07 upstream 136057256686 4eb20a4e .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/21 23:25 upstream 136057256686 4eb20a4e .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/21 03:36 upstream 61564e7b3abc 4eb20a4e .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/19 22:14 upstream 4c388a8e740d 3a9d0024 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/19 01:59 upstream 6fdf886424cf 31a30fc0 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/17 19:55 upstream ee1703cda8dc cafff8b6 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/16 22:09 upstream 8ab774587903 cafff8b6 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/16 02:43 upstream 8ab774587903 83f5c9b5 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/15 11:29 upstream fa55b7dcdc43 83f5c9b5 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/14 07:06 upstream ccfff0a2bd2a 83f5c9b5 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/12 17:55 upstream 5833291ab6de 83f5c9b5 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/12 00:48 upstream 5833291ab6de 75b04091 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/10 18:59 upstream 89d714ab6043 75b04091 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/09 00:50 upstream e851dfae4371 8ab17e57 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/08 04:24 upstream 6b75d88fa81b 4c1be0be .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/07 23:12 upstream b5013d084e03 4c1be0be .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/07 13:54 upstream b5013d084e03 4c1be0be .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/05 13:02 upstream d4439a1189f9 4c1be0be .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/05 09:10 upstream d4439a1189f9 4c1be0be .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/11/01 10:01 upstream 8bb7eca972ad 098b5d53 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/10/20 01:01 upstream d9abdee5fd5a 466b7db1 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/10/17 14:59 upstream d999ade1cc86 0c5d9412 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/08/05 08:02 upstream 251a1524293d 7f7bb950 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/08/04 19:47 upstream d5ad8ec3cfb5 b97d64c9 .config log report info WARNING in schedule_bh
ci-qemu-upstream 2021/07/30 06:45 upstream 764a5bc89b12 c585c7b0 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2022/02/07 14:33 upstream dfd42facf1e4 a7dab638 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2022/01/17 18:22 upstream 0c947b893d69 731a2d23 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2022/01/16 05:07 upstream a33f5c380c4b 723cfaf0 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/12/05 21:37 upstream 944207047ca4 a617004c .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/12/04 01:29 upstream 12119cfa1052 a617004c .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/12/02 10:23 upstream 58e1100fdc59 61f86278 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/29 15:50 upstream d58071a8a76d d0830353 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/29 08:04 upstream d06c942efea4 63eeac02 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/27 20:02 upstream 741392771338 63eeac02 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/25 12:52 upstream 5f53fa508db0 545ab074 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/23 09:51 upstream 136057256686 545ab074 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/19 06:22 upstream 4c388a8e740d 31a30fc0 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/18 16:55 upstream 42eb8fdac2fc 31a30fc0 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/13 16:12 upstream 66f4beaa6c1d 83f5c9b5 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/09 20:17 upstream d2f38a3c6507 59bcaf9a .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/06 21:06 upstream fe91c4725aee 4c1be0be .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/06 12:38 upstream fe91c4725aee 4c1be0be .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/11/05 03:59 upstream 7ddb58cb0eca 4c1be0be .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/07/18 16:49 upstream 1d67c8d993ba f115ae98 .config log report info WARNING in schedule_bh
ci-qemu-upstream-386 2021/05/28 12:35 upstream 97e5bf604b7a 858ea628 .config log report info WARNING in schedule_bh
* Struck through repros no longer work on HEAD.