syzbot


WARNING in process_fd_request

Status: auto-obsoleted due to no activity on 2024/01/03 18:42
Subsystems: block
[Documentation on labels]
Reported-by: syzbot+1d4201dfe9f2386fdc0b@syzkaller.appspotmail.com
First crash: 418d, last: 239d
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly block report (Oct 2023) 0 (1) 2023/10/09 09:23
[syzbot] [block?] WARNING in process_fd_request 0 (1) 2023/04/03 14:54

Sample crash report:
command_status=-1
floppy1: floppy timeout called
------------[ cut here ]------------
WARNING: CPU: 3 PID: 1730 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline]
WARNING: CPU: 3 PID: 1730 at drivers/block/floppy.c:999 process_fd_request+0x6b/0x70 drivers/block/floppy.c:2847
Modules linked in:
CPU: 3 PID: 1730 Comm: kworker/u16:45 Not tainted 6.6.0-rc3-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: floppy floppy_shutdown
RIP: 0010:schedule_bh drivers/block/floppy.c:999 [inline]
RIP: 0010:process_fd_request+0x6b/0x70 drivers/block/floppy.c:2847
Code: fc 5b bf 08 00 00 00 48 c7 c2 a0 4d 8f 8d 48 8b 35 ea 68 1a 0d 48 c7 05 ff 63 1a 0d f0 53 3d 85 e9 8a e3 17 fc e8 05 a6 49 fc <0f> 0b eb ce 90 48 b8 00 00 00 00 00 fc ff df 41 56 41 55 41 89 f5
RSP: 0018:ffffc90028097cd0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff88804a971280 RSI: ffffffff853d1f0b RDI: 0000000000000001
RBP: ffffffff8d8f4e20 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 3a317970706f6c66 R12: ffff888017c20400
R13: 0000000000000001 R14: ffffc90028097d80 R15: ffff888012c7d000
FS:  0000000000000000(0000) GS:ffff88806b900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa0e19bcd58 CR3: 000000000c976000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 floppy_shutdown+0x134/0x230 drivers/block/floppy.c:1889
 process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
 process_scheduled_works kernel/workqueue.c:2703 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
 kthread+0x33c/0x440 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>

Crashes (13):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/25 18:41 upstream 6465e260f487 0b6a67ac .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in process_fd_request
2023/09/23 17:19 upstream d90b0276af8f 0b6a67ac .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in process_fd_request
2023/08/19 02:15 upstream d4ddefee5160 d216d8a0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in process_fd_request
2023/06/27 16:10 upstream 1ef6663a587b 4cd5bb25 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in process_fd_request
2023/06/26 16:14 upstream 6995e2de6891 4cd5bb25 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in process_fd_request
2023/07/13 18:38 upstream eb26cbb1a754 bfb20202 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in process_fd_request
2023/07/10 03:33 upstream 06c2afb862f9 668cb1fa .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in process_fd_request
2023/07/04 20:50 upstream 24be4d0b46bb 07d54a36 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in process_fd_request
2023/06/25 12:00 upstream a92b7d26c743 79782afc .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in process_fd_request
2023/06/14 00:01 upstream 15adb51c04cc 2f9d8e43 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in process_fd_request
2023/06/12 00:00 upstream 4c605260bc60 49519f06 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in process_fd_request
2023/04/12 04:37 upstream 2c40519251d6 49faf98d .config console log report info ci-qemu-upstream-386 WARNING in process_fd_request
2023/03/30 14:49 upstream ffe78bbd5121 f325deb0 .config console log report info ci-qemu-upstream-386 WARNING in process_fd_request
* Struck through repros no longer work on HEAD.