From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
To: zimoun <zimon.toutoune@gmail.com>
Cc: 24028-done@debbugs.gnu.org
Subject: bug#24028: Linux-libre kernel does not build deterministically
Date: Sun, 21 Nov 2021 09:12:34 -0500 [thread overview]
Message-ID: <87y25hbnsd.fsf@gmail.com> (raw)
In-Reply-To: <86lf3ztljp.fsf@gmail.com> (zimoun's message of "Tue, 14 Sep 2021 13:59:38 +0200")
Hello,
zimoun <zimon.toutoune@gmail.com> writes:
> Hi,
>
> On Fri, 09 Oct 2020 at 17:17, Maxim Cournoyer <maxim.cournoyer@gmail.com> wrote:
>> ludo@gnu.org (Ludovic Courtès) writes:
>>
>>> As of version 4.6.4, Linux-libre does not build reproducibly:
>>>
>>> $ guix challenge linux-libre
>>> /gnu/store/wkdnd1dcgljr0jxmd3li8j0qsr2zwrci-linux-libre-4.6.4 contents differ:
>>> local hash: 1py214sd42qcq8l429m4zf4aibp8rl68kpkrzqi1nn65vnbxsx11
>>> https://hydra.gnu.org/nar/wkdnd1dcgljr0jxmd3li8j0qsr2zwrci-linux-libre-4.6.4:
>>> 19hsdsjy5i9nfc1g28s074znzimzhylgkdpwz435j301sn9pxxp9
>>> $ wget -q -O -
>>> https://hydra.gnu.org/nar/wkdnd1dcgljr0jxmd3li8j0qsr2zwrci-linux-libre-4.6.4
>>> | bunzip2 | guix archive -x t
>>> $ diff -ur --no-dereference /gnu/store/wkdnd1dcgljr0jxmd3li8j0qsr2zwrci-linux-libre-4.6.4 /tmp/t
>>> Binary files /gnu/store/wkdnd1dcgljr0jxmd3li8j0qsr2zwrci-linux-libre-4.6.4/bzImage and /tmp/t/bzImage differ
>>>
>>> Apparently people are working on it:
>>> <https://wiki.debian.org/SameKernel>.
>>
>> I just tested with linux-libre 5.8.10, and it still suffers from
>> reproducibility problems, but only for one file:
>>
>> diff -r /gnu/store/jc1dydmax5sdfljpi5mq5dhq9wdr92xy-linux-libre-5.8.10{,-check}
>> Binary files /gnu/store/jc1dydmax5sdfljpi5mq5dhq9wdr92xy-linux-libre-5.8.10/bzImage and /gnu/store/jc1dydmax5sdfljpi5mq5dhq9wdr92xy-linux-libre-5.8.10-check/bzImage differ
>
> Still the same issue with 5.13.15.
>
> diff -r --no-dereference /gnu/store/y9r7physjpa23znb7r6rg38wpmxrkp0s-linux-libre-5.13.15{,-check}
> Binary files /gnu/store/y9r7physjpa23znb7r6rg38wpmxrkp0s-linux-libre-5.13.15/bzImage and /gnu/store/y9r7physjpa23znb7r6rg38wpmxrkp0s-linux-libre-5.13.15-check/bzImage differ
Fixed in 01ea70a29c on core-updates-frozen, after taking hints from
https://lwn.net/Articles/841624/.
Thanks,
Closing.
Maxim
next prev parent reply other threads:[~2021-11-21 14:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-19 17:22 bug#24028: Linux-libre kernel does not build deterministically Ludovic Courtès
2020-10-09 21:17 ` Maxim Cournoyer
2021-09-14 11:59 ` zimoun
2021-11-21 14:12 ` Maxim Cournoyer [this message]
2021-05-17 18:38 ` Bone Baboon via Bug reports for GNU Guix
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