GNU bug report logs - #53696
Integer overflow on Guix GC size calculation

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Message #32 received at 53696 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Bengt Richter <bokr <at> bokr.com>
Cc: 53696 <at> debbugs.gnu.org, Maxime Devos <maximedevos <at> telenet.be>,
 Ekaitz Zarraga <ekaitz <at> elenq.tech>
Subject: Re: bug#53696: Integer overflow on Guix GC size calculation
Date: Tue, 08 Feb 2022 11:01:57 +0100

Hi!

Bengt Richter <bokr <at> bokr.com> skribis:

> It looks to me like a 32-bit unsigned int should have been turned to 64-bit unsigned long or bigint
> but somehow got cast/interpreted as signed, becoming signed 64-bit long,
> which then in turn was seen by the print as 64-bit unsigned long.

That could be the explanation; there were a couple of bugs along these
lines fixed recently:

  https://issues.guix.gnu.org/51983#4

It would have been good to see which store item that came right before
the huge number.  Could it be that it was texlive-texmf, or flightgear,
or repeat-masker, the three packages whose store item size exceeds 2^31?

Ekaitz, what guix-daemon version are you running?

Thanks,
Ludo’.

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