linux-kernel - Re: 6.0.0-RC kernels trigger Firefox snap bug with 6.0.0-rc3 through 6.0.0-rc7

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Message-ID: <e3acecdc-c240-5c9a-8216-5dae0c6c0186@alu.unizg.hr>
Date:   Fri, 14 Oct 2022 17:06:28 +0200
From:   Mirsad Todorovac <mirsad.todorovac@....unizg.hr>
To:     Bagas Sanjaya <bagasdotme@...il.com>
Cc:     linux-kernel@...r.kernel.org, Slade Watkins <srw@...dewatkins.net>,
        Marc Miltenberger <marcmiltenberger@...il.com>,
        Thorsten Leemhuis <regressions@...mhuis.info>,
        "regressions@...ts.linux.dev" <regressions@...ts.linux.dev>
Subject: Re: 6.0.0-RC kernels trigger Firefox snap bug with 6.0.0-rc3 through
 6.0.0-rc7

On 10/14/22 14:28, Bagas Sanjaya wrote:

> On 10/14/22 17:32, Mirsad Todorovac wrote:
>> I tried the "make localmodconfig" and provided the default answers ([ENTER]) to all questions
>> the script asked as advised here: https://www.stolaf.edu/people/rab/os/linux-compile.html .
>>
>> However, though it built much faster, the stripped version did not trigger the bug.
>>
>> I am now trying to reproduce the bug with v6.0-rc[123] with config-{051913,060000}.
>> This brings a lot of combinations, and though I am a newbie, I noticed that build scripts
>> start with "make clean" for both deb-pkg and rpm-pkg.
>>
>> Is there a way to rebuild only the stuff that changed between the versions?
>>
> You can try building kernel with ccache enabled. However, you'll need
> to unset build timestamp, since it will make builds non-deterministic:
>
> 	make CC="ccache gcc" KBUILD_BUILD_TIMESTAMP=""
>
> The first ccache build will be slower than normal build, because the
> object files needs to be written twice (to the output directory and
> to the cache), though.
>
> Thanks.

Thank you!
This will greatly speed up bisecting if it works ...

Have a nice evening.

Mirsad

-- 
Mirsad Goran Todorovac
Sistem inženjer
Grafički fakultet | Akademija likovnih umjetnosti
Sveučilište u Zagrebu
-- 
System engineer
Faculty of Graphic Arts | Academy of Fine Arts
University of Zagreb, Republic of Croatia