syzbot


WARNING in floppy_check_events

Status: auto-obsoleted due to no activity on 2022/09/25 20:23
Reported-by: syzbot+43f787e4cfb1ef7b84a8@syzkaller.appspotmail.com
First crash: 202d, last: 128d

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 14769 at drivers/block/floppy.c:999 schedule_bh drivers/block/floppy.c:999 [inline]
WARNING: CPU: 1 PID: 14769 at drivers/block/floppy.c:999 process_fd_request drivers/block/floppy.c:2847 [inline]
WARNING: CPU: 1 PID: 14769 at drivers/block/floppy.c:999 floppy_check_events+0x44a/0x560 drivers/block/floppy.c:4099
Modules linked in:
CPU: 1 PID: 14769 Comm: kworker/1:1 Not tainted 5.18.0-syzkaller-10643-g9d004b2f4fea #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: events_freezable_power_ disk_events_workfn
RIP: 0010:schedule_bh drivers/block/floppy.c:999 [inline]
RIP: 0010:process_fd_request drivers/block/floppy.c:2847 [inline]
RIP: 0010:floppy_check_events+0x44a/0x560 drivers/block/floppy.c:4099
Code: 05 c7 c5 f3 0b b0 06 9a 84 e8 22 a1 b3 fc e9 ba fd ff ff 45 31 e4 e9 6e fc ff ff e8 90 f9 2c fd e9 5b fd ff ff e8 e6 3c e0 fc <0f> 0b eb b8 48 89 de 48 c7 c7 a0 9b 8e 8c e8 63 b1 84 ff e9 e4 fb
RSP: 0018:ffffc90026da7ca0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888017399d80 RSI: ffffffff849a34ba RDI: 0000000000000007
RBP: ffffffff908e2270 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000002 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88802cb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f6e62520 CR3: 0000000024d3c000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 disk_check_events+0xc2/0x420 block/disk-events.c:193
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
 </TASK>

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-qemu-upstream-386 2022/05/28 20:23 upstream 9d004b2f4fea a46af346 .config log report info WARNING in floppy_check_events
ci-qemu-upstream-386 2022/03/15 00:04 upstream 09688c0166e7 9e8eaa75 .config log report info WARNING in floppy_check_events
* Struck through repros no longer work on HEAD.