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Subject: Re: [syzbot] general protection fault in __io_arm_poll_handler
To:     syzbot <syzbot+ba74b85fa15fd7a96437@syzkaller.appspotmail.com>,
        asml.silence@gmail.com, io-uring@vger.kernel.org,
        linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com,
        Dmitry Vyukov <dvyukov@google.com>
References: <000000000000f0da6305cb1feacb@google.com>
From:   Jens Axboe <axboe@kernel.dk>
Message-ID: <15a67989-9ad7-11ef-9472-8e16ca6ec11a@kernel.dk>
Date:   Fri, 3 Sep 2021 18:49:11 -0600
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On 9/3/21 5:47 PM, syzbot wrote:
> Hello,
> 
> syzbot has tested the proposed patch and the reproducer did not trigger any issue:
> 
> Reported-and-tested-by: syzbot+ba74b85fa15fd7a96437@syzkaller.appspotmail.com
> 
> Tested on:
> 
> commit:         31efe48e io_uring: fix possible poll event lost in mul..
> git tree:       git://git.kernel.dk/linux-block for-5.15/io_uring
> kernel config:  https://syzkaller.appspot.com/x/.config?x=914bb805fa8e8da9
> dashboard link: https://syzkaller.appspot.com/bug?extid=ba74b85fa15fd7a96437
> compiler:       Debian clang version 11.0.1-2, GNU ld (GNU Binutils for Debian) 2.35.1
> 
> Note: testing is done by a robot and is best-effort only.

Dmitry, I wonder if there's a way to have syzbot know about what it's
testing and be able to run the pending patches for that tree? I think
we're up to 4 reports now that are all just fallout from the same bug,
and where a patch has been queued up for a few days. Since they all look
different, I can't fault syzbot for thinking they are different, even if
they have the same root cause.

Any way we can make this situation better? I can't keep replying that we
should test the current branch, and it'd be a shame to have a ton of
dupes.

-- 
Jens Axboe