GNU bug report logs - #46212
ci.guix.gnu.org narinfos with excessive NarSize

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Message #31 received at 46212 <at> debbugs.gnu.org (full text, mbox):

From: Mathieu Othacehe <othacehe <at> gnu.org>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 46212 <at> debbugs.gnu.org, Christopher Baines <mail <at> cbaines.net>
Subject: Re: bug#46212: ci.guix.gnu.org narinfos with excessive NarSize
Date: Wed, 24 Feb 2021 11:26:27 +0100

Hey,

> The bug here is likely due to 32-bit signed integer wrapping.  That can
> only happen in C code, so to me possible culprits would be
> guile-simple-zmq or the layer above it (if there’s a binary protocol
> involved) or the postgresql interface.  Only a vague intuition, though.

Hmm, looks like you're right! There's a memory corruption in the
remote-server process that's really hard to reproduce. I suspect the ZMQ
library or its Guile bindings.

I'm trying to valgrind the process to identify the issue, without much
success for now.

Thanks,

Mathieu

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