linux-kernel - Re: what trees/branches to test on syzbot

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Message-ID: <CABXOdTe2c7frd8y7CrcEi-WTz9oo56X8TfXzM4J4TadNEcWuxw@mail.gmail.com>
Date:   Tue, 16 Jan 2018 08:58:00 -0800
From:   Guenter Roeck <groeck@...gle.com>
To:     Dmitry Vyukov <dvyukov@...gle.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        "Theodore Ts'o" <tytso@....edu>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        syzkaller <syzkaller@...glegroups.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        David Miller <davem@...emloft.net>,
        Fengguang Wu <fengguang.wu@...el.com>
Subject: Re: what trees/branches to test on syzbot

On Tue, Jan 16, 2018 at 1:58 AM, Dmitry Vyukov <dvyukov@...gle.com> wrote:
> On Tue, Jan 16, 2018 at 10:45 AM, Guenter Roeck <groeck@...gle.com> wrote:
>> On Mon, Jan 15, 2018 at 11:51 PM, Dmitry Vyukov <dvyukov@...gle.com> wrote:
>>> Hello,
>>>
>>> Several people proposed that linux-next should not be tested on
>>> syzbot. While some people suggested that it needs to test as many
>>> trees as possible. I've initially included linux-next as it is a
>>> staging area before upstream tree, with the intention that patches are
>>> _tested_ there, is they are not tested there, bugs enter upstream
>>> tree. And then it takes much longer to get fix into other trees.
>>>
>>> So the question is: what trees/branches should be tested? Preferably
>>> in priority order as syzbot can't test all of them.
>>>
>>
>> I always thought that -next existed specifically to give people a
>> chance to test the code in it. Maybe the question is where to report
>> the test results ?
>
> FTR, from Guenter on another thread:
>
>> Interesting. Assuming that refers to linux-next, not linux-net, that
>> may explain why linux-next tends to deteriorate. I wonder if I should
>> drop it from my testing as well. I'll be happy to follow whatever the
>> result of this exchange is and do the same.
>
> If we agree on some list of important branches, and what branches
> specifically should not be tested with automatic reporting, I think it
> will benefit everybody.
> +Fengguang, can you please share your list and rationale behind it?

https://github.com/fengguang/lkp-tests, more specifically
https://github.com/fengguang/lkp-tests/tree/master/repo/linux

Guenter