On 5/8/21 3:50 AM, syzbot wrote:

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+93f72b3885406bb09e0d@syzkaller.appspotmail.com

May still be there but silent because of fixed buffers changes,
test with the old behaviour restored

#syz test: https://github.com/isilence/linux.git syz_test7

Tested on:

commit:         50b7b6f2 x86/process: setup io_threads more like normal us..
git tree:       git://git.kernel.dk/linux-block io_uring-5.13
kernel config:  https://syzkaller.appspot.com/x/.config?x=f81a36128b448b98
dashboard link: https://syzkaller.appspot.com/bug?extid=93f72b3885406bb09e0d
compiler:       

Note: testing is done by a robot and is best-effort only.

-- 
Pavel Begunkov