Subject: Re: bug#40525: inferior process on core-updates crashes: mmap(PROT_NONE) failed

From: Christopher Baines <[email-masked]>
Date: Fri, 10 Apr 2020 12:55:11 +0100

Ludovic Courtès <[email-masked]> writes:

> Hi,
>
> Christopher Baines <[email-masked]> skribis:
>
>> At some point, usually when extracting the information about lint
>> warnings, package derivations or system tests, the inferior guix repl
>> crashes.
>
> Could you come up with a simpler reproducer?  What do we need to send to
> the inferior to reach that crash?

I've attached a script that when run should reproduce the issue. I
extracted the code relating to lint warnings from the Guix Data
Service. The script attached runs this code twice against the inferior,
once will often be enough to cause it to crash, but twice should
reproduce it more reliably.