GNU bug report logs - #66923
[PATCH 0/2] linux-libre kernel updates (2023-11-03)

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From: Leo Famulari <leo <at> famulari.name>
To: Wilko Meyer <w <at> wmeyer.eu>
Cc: 66923 <at> debbugs.gnu.org
Subject: [bug#66923] [PATCH 1/2] gnu: linux-libre 6.5: Update to 6.5.10.
Date: Sun, 5 Nov 2023 10:34:11 -0500

On Fri, Nov 03, 2023 at 10:58:00PM +0100, Wilko Meyer wrote:
> * gnu/packages/linux.scm (linux-libre-6.5-version): Update to 6.5.10.
> (linux-libre-6.5-pristine-source): Update hash.

On CI, this package failed to build with a hash mismatch for the kernel
source tarball:

------
Starting download of /gnu/store/31g0vm5hlgfi4d9lfwj07fasjn5667af-linux-6.5.10.tar.xz
From http://linux-kernel.uio.no/pub/linux/kernel/v6.x/linux-6.5.10.tar.xz...
[...]
[K ….10.tar.xz  90.0MiB                62.4MiB/s 00:01 [##################] 100.0%
@ hash-mismatch /gnu/store/31g0vm5hlgfi4d9lfwj07fasjn5667af-linux-6.5.10.tar.xz sha256 12sswml8jvabv6bqx35lg3jj6gq8jjk365rghjngdy5d0j34jpx1 1drdjrbhdiljcqapjrjyvyvvf7dvpxdw4wxnqxjh1xy7f5vimxm9
hash mismatch for store item '/gnu/store/31g0vm5hlgfi4d9lfwj07fasjn5667af-linux-6.5.10.tar.xz'
------
https://ci.guix.gnu.org/build/2418732/log

I downloaded the tarball 'by hand' from kernel.org and calculated the
hash:

------
$ guix hash linux-6.5.10.tar.xz
12sswml8jvabv6bqx35lg3jj6gq8jjk365rghjngdy5d0j34jpx1
------

... and that matches your patch:

>  (define-public linux-libre-6.5-pristine-source
>    (let ((version linux-libre-6.5-version)
> -        (hash (base32 "1mcg0lpxr832mwyqlbn0s5gssvsk2nn2xhq9w0qbymizf5j2yrn6")))
> +        (hash (base32 "12sswml8jvabv6bqx35lg3jj6gq8jjk365rghjngdy5d0j34jpx1")))

However, Guix uses a mirror provided by the University of Oslo, and that
indeed provides a file with a different hash. That file appears to be
truncated, since tar fails to extract it, and it is about 2/3 the size
of the file from kernel.org (133 MiB):

------
$ curl -LO http://linux-kernel.uio.no/pub/linux/kernel/v6.x/linux-6.5.10.tar.xz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 90.0M  100 90.0M    0     0  6333k      0  0:00:14  0:00:14 --:--:-- 7441k
$ guix hash linux-6.5.10.tar.xz                                                
1drdjrbhdiljcqapjrjyvyvvf7dvpxdw4wxnqxjh1xy7f5vimxm9
$ tar xf linux-6.5.10.tar.xz 
xz: (stdin): Unexpected end of input
tar: Unexpected EOF in archive
tar: Unexpected EOF in archive
tar: Error is not recoverable: exiting now
------

kernel.org already runs a CDN to distribute demand effectively, so I
replaced the bogus source with the canonical upstream in our list of
download URLs, in 'guix/download.scm'.

I've pushed an updated patch series to 'kernel-updates' with this
change.

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