From: syzbot <syzbot+cf6ea1d6bb30a4ce10b2@syzkaller.appspotmail.com>
To: asml.silence@gmail.com, axboe@kernel.dk,
io-uring@vger.kernel.org, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: [syzbot] WARNING in io_cqring_overflow_flush
Date: Tue, 20 Dec 2022 20:24:47 -0800 [thread overview]
Message-ID: <000000000000cb143a05f04eee15@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 77856d911a8c Merge tag 'arm64-fixes' of git://git.kernel.o..
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=13e722d7880000
kernel config: https://syzkaller.appspot.com/x/.config?x=334a10f27a9ee2e0
dashboard link: https://syzkaller.appspot.com/bug?extid=cf6ea1d6bb30a4ce10b2
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=112eeb13880000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16b78bdb880000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/84863f051feb/disk-77856d91.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/87614e2a8a26/vmlinux-77856d91.xz
kernel image: https://storage.googleapis.com/syzbot-assets/cb76bad63a90/bzImage-77856d91.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+cf6ea1d6bb30a4ce10b2@syzkaller.appspotmail.com
------------[ cut here ]------------
do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff81606e0e>] prepare_to_wait_exclusive+0x7e/0x2c0 kernel/sched/wait.c:290
WARNING: CPU: 1 PID: 5084 at kernel/sched/core.c:9908 __might_sleep+0x109/0x160 kernel/sched/core.c:9908
Modules linked in:
CPU: 1 PID: 5084 Comm: syz-executor102 Not tainted 6.1.0-syzkaller-13031-g77856d911a8c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:__might_sleep+0x109/0x160 kernel/sched/core.c:9908
Code: ac 03 00 48 8d bb b8 16 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 34 48 8b 93 b8 16 00 00 48 c7 c7 80 d6 2b 8a e8 74 f6 5b 08 <0f> 0b e9 75 ff ff ff e8 7b 78 78 00 e9 26 ff ff ff 89 34 24 e8 8e
RSP: 0018:ffffc90003ccfbb8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff88802aa48000 RCX: 0000000000000000
RDX: ffff88802aa48000 RSI: ffffffff8166707c RDI: fffff52000799f69
RBP: ffffffff8a2c3500 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000244
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000001000
FS: 00007fbcc68c0700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbcc6964018 CR3: 0000000028bc2000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__mutex_lock_common kernel/locking/mutex.c:580 [inline]
__mutex_lock+0x9f/0x1360 kernel/locking/mutex.c:747
io_cqring_overflow_flush io_uring/io_uring.c:674 [inline]
io_cqring_overflow_flush+0xe6/0x130 io_uring/io_uring.c:669
io_cqring_wait io_uring/io_uring.c:2534 [inline]
__do_sys_io_uring_enter+0x1590/0x21b0 io_uring/io_uring.c:3358
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fbcc6912ec9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 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:00007fbcc68c02f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007fbcc69974a8 RCX: 00007fbcc6912ec9
RDX: 000000000000fc0f RSI: 0000000000001000 RDI: 0000000000000003
RBP: 00007fbcc69974a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007fbcc69974ac
R13: 0000000000000003 R14: 00007fbcc68c0400 R15: 0000000000022000
</TASK>
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
next reply other threads:[~2022-12-21 4:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-21 4:24 syzbot [this message]
2022-12-21 14:14 ` [syzbot] WARNING in io_cqring_overflow_flush Jens Axboe
2022-12-21 14:54 ` syzbot
[not found] <20221221063432.1612-1-hdanton@sina.com>
2022-12-21 8:36 ` syzbot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=000000000000cb143a05f04eee15@google.com \
--to=syzbot+cf6ea1d6bb30a4ce10b2@syzkaller.appspotmail.com \
--cc=asml.silence@gmail.com \
--cc=axboe@kernel.dk \
--cc=io-uring@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=syzkaller-bugs@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.