GNU bug report logs - #39993
Guix report hash mismatch when underlying cause is ENOSPC

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#39993: closed (Guix report hash mismatch when underlying
 cause is ENOSPC)
Date: Sat, 21 Mar 2020 23:04:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated Sun, 22 Mar 2020 00:03:07 +0100
with message-id <87y2rtux90.fsf <at> gnu.org>
and subject line Re: bug#39993: Guix report hash mismatch when underlying cause is ENOSPC
has caused the debbugs.gnu.org bug report #39993,
regarding Guix report hash mismatch when underlying cause is ENOSPC
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
39993: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=39993
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: bug-guix <bug-guix <at> gnu.org>
Subject: Guix report hash mismatch when underlying cause is ENOSPC
Date: Sun, 08 Mar 2020 22:03:19 -0400

Guix should correctly report that it ran out of space instead of falsely
mentioning hash mismatches and attempting alternative download sources,
as demonstrated by the Guix output below:

Session:

building /gnu/store/dqzq8hbk8gqx5lhmnxsl5vl0c6s3i0a2-tcpdump-4.9.3.tar.gz.drv...
downloading from https://www.tcpdump.org/release/tcpdump-4.9.3.tar.gz...
downloading from https://ci.guix.gnu.org/file/tcpdump-4.9.3.tar.gz/sha256/0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c...
downloading from https://tarballs.nixos.org/sha256/0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c...
downloading from https://archive.softwareheritage.org/api/1/content/sha256:2cd47cb3d460b6ff75f4a9940f594317ad456cfbf2bd2c8e5151e16559db6410/raw/...
/sha256 hash mismatch for /gnu/store/mv33j0si1n75q9kdimhvyrjn05pbxz5b-tcpdump-4.9.3.tar.gz:
  expected hash: 0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c
  actual hash:   0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73
hash mismatch for store item '/gnu/store/mv33j0si1n75q9kdimhvyrjn05pbxz5b-tcpdump-4.9.3.tar.gz'
build of /gnu/store/dqzq8hbk8gqx5lhmnxsl5vl0c6s3i0a2-tcpdump-4.9.3.tar.gz.drv failed
View build log at '/var/log/guix/drvs/dq/zq8hbk8gqx5lhmnxsl5vl0c6s3i0a2-tcpdump-4.9.3.tar.gz.drv.bz2'.
cannot build derivation `/gnu/store/47d55bgd42rcnszhxjg5cbjcdskxih1x-tcpdump-4.9.3.drv': 1 dependencies couldn't be built
guix package: error: build of `/gnu/store/47d55bgd42rcnszhxjg5cbjcdskxih1x-tcpdump-4.9.3.drv' failed

I then quickly realized my system had ran out of space when I next
tried:

--8<---------------cut here---------------start------------->8---
maxim <at> apteryx ~/src/guix [env]$ wget https://tarballs.nixos.org/sha256/0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c
--2020-03-08 21:52:11--  https://tarballs.nixos.org/sha256/0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c
Resolving tarballs.nixos.org (tarballs.nixos.org)... 13.225.198.24, 13.225.198.66, 13.225.198.85, ...
Connecting to tarballs.nixos.org (tarballs.nixos.org)|13.225.198.24|:443... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: /sha512/3aec673f78b996a4df884b1240e5d0a26a2ca81ee7aca8a2e6d50255bb53476e008a5ced4409e278a956710d8a4d31d85bbb800c9f1aab92b0b1046b59292a22 [following]
--2020-03-08 21:52:11--  https://tarballs.nixos.org/sha512/3aec673f78b996a4df884b1240e5d0a26a2ca81ee7aca8a2e6d50255bb53476e008a5ced4409e278a956710d8a4d31d85bbb800c9f1aab92b0b1046b59292a22
Reusing existing connection to tarballs.nixos.org:443.
HTTP request sent, awaiting response... 200 OK
Length: 2333119 (2.2M) [binary/octet-stream]
Saving to: ‘0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c’

0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c   0%[                                                                                                                       ]       0  --.-KB/s    in 0s      


Cannot write to ‘0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c’ (No space left on device).
--8<---------------cut here---------------end--------------->8---

Maxim

[Message part 3 (message/rfc822, inline)]

From: Ludovic Courtès <ludo <at> gnu.org>
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Cc: 39993-done <at> debbugs.gnu.org
Subject: Re: bug#39993: Guix report hash mismatch when underlying cause is
 ENOSPC
Date: Sun, 22 Mar 2020 00:03:07 +0100

Hi,

Ludovic Courtès <ludo <at> gnu.org> skribis:

> Maxim Cournoyer <maxim.cournoyer <at> gmail.com> skribis:
>
>> Guix should correctly report that it ran out of space instead of falsely
>> mentioning hash mismatches and attempting alternative download sources,
>> as demonstrated by the Guix output below:
>>
>> Session:
>>
>> building /gnu/store/dqzq8hbk8gqx5lhmnxsl5vl0c6s3i0a2-tcpdump-4.9.3.tar.gz.drv...
>> downloading from https://www.tcpdump.org/release/tcpdump-4.9.3.tar.gz...
>
> Could you post the log returned by ‘guix build --log-file
> /gnu/store/dqzq8hbk8gqx5lhmnxsl5vl0c6s3i0a2-tcpdump-4.9.3.tar.gz.drv’?

I was able to reproduce it with a hack and that gives:

--8<---------------cut here---------------start------------->8---
$ ./pre-inst-env guix build -S tcpdump --check 
accepted connection from pid 32022, user ludo
The following derivation will be built:
   /gnu/store/3y4zkzpkx799cvph0qi8kvkh26l8kfww-tcpdump-4.9.3.tar.gz.drv
building /gnu/store/3y4zkzpkx799cvph0qi8kvkh26l8kfww-tcpdump-4.9.3.tar.gz.drv...

Starting download of /gnu/store/124q26gkdyls859sblabz3f60grfvvdl-tcpdump-4.9.3.tar.gz
From https://www.tcpdump.org/release/tcpdump-4.9.3.tar.gz...
In procedure fport_write: Ne haviĝas plu da spaco sur aparato

Starting download of /gnu/store/124q26gkdyls859sblabz3f60grfvvdl-tcpdump-4.9.3.tar.gz
From https://ci.guix.gnu.org/file/tcpdump-4.9.3.tar.gz/sha256/0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c...
In procedure fport_write: Ne haviĝas plu da spaco sur aparato

Starting download of /gnu/store/124q26gkdyls859sblabz3f60grfvvdl-tcpdump-4.9.3.tar.gz
From https://tarballs.nixos.org/sha256/0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c...
following redirection to `https://tarballs.nixos.org/sha512/3aec673f78b996a4df884b1240e5d0a26a2ca81ee7aca8a2e6d50255bb53476e008a5ced4409e278a956710d8a4d31d85bbb800c9f1aab92b0b1046b59292a22'...
In procedure fport_write: Ne haviĝas plu da spaco sur aparato

Starting download of /gnu/store/124q26gkdyls859sblabz3f60grfvvdl-tcpdump-4.9.3.tar.gz
From https://archive.softwareheritage.org/api/1/content/sha256:2cd47cb3d460b6ff75f4a9940f594317ad456cfbf2bd2c8e5151e16559db6410/raw/...
In procedure fport_write: Ne haviĝas plu da spaco sur aparato
failed to download "/gnu/store/124q26gkdyls859sblabz3f60grfvvdl-tcpdump-4.9.3.tar.gz" from "https://www.tcpdump.org/release/tcpdump-4.9.3.tar.gz"
warning: rewriting hashes in `/gnu/store/mv33j0si1n75q9kdimhvyrjn05pbxz5b-tcpdump-4.9.3.tar.gz'; cross fingers
sha256 hash mismatch for /gnu/store/mv33j0si1n75q9kdimhvyrjn05pbxz5b-tcpdump-4.9.3.tar.gz:
  expected hash: 0434vdcnbqaia672rggjzdn4bb8p8dchz559yiszzdk0sjrprm1c
  actual hash:   0mdqa9w1p6cmli6976v4wi0sw9r4p5prkj7lzfd1877wk11c9c73
hash mismatch for store item '/gnu/store/mv33j0si1n75q9kdimhvyrjn05pbxz5b-tcpdump-4.9.3.tar.gz'
--8<---------------cut here---------------end--------------->8---

> The root cause is that ‘false-if-exception*’ as used in (guix build
> download) is too coarse-grain.

I came up with a fix in 4a6ec23a9780bd75a7e527bd0dfb1943347869bb.

Thanks,
Ludo’.

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