On 10/31/21 11:40 AM, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: bdcc9f6a5682 Add linux-next specific files for 20211029 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=10be38f4b00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=4b504bcb4c507265 > dashboard link: https://syzkaller.appspot.com/bug?extid=e4f5deeeccdd5a4873fe > 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=10b915d4b00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1395f3e2b00000 > > The issue was bisected to: > > commit 34ced75ca1f63fac6148497971212583aa0f7a87 > Author: Xiaoguang Wang <xiaoguang.wang@xxxxxxxxxxxxxxxxx> > Date: Mon Oct 25 05:38:48 2021 +0000 > > io_uring: reduce frequent add_wait_queue() overhead for multi-shot poll request This was dropped from the tree last week: #syz invalid -- Jens Axboe