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bug#20145: (guix build download) leaks file descriptor on TLS connection
From: |
Ludovic Courtès |
Subject: |
bug#20145: (guix build download) leaks file descriptor on TLS connections |
Date: |
Fri, 03 Jan 2020 00:19:19 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) |
Hi,
Back in 2015, I closed <https://issues.guix.gnu.org/issue/20145> saying:
> address@hidden (Ludovic Courtès) skribis:
>
>> When opening an HTTPS connection, the file descriptor beneath the port
>> returned by ‘tls-wrap’ is leaked.
>>
>> This is not a problem in most cases (downloads) because the process is
>> left as soon as the download is over.
>>
>> This is more problematic for ‘guix lint’, which may open a large number
>> of HTTPS connections for the ‘source’ and ‘home-page’ checkers when
>> working on all the packages.
>
> This is essentially solved by commits
> 14d6ca3e4dd23ee92adb5e2fcf58546e67534631 and
> 097a951e96718a037dbfa6d579e2d26f7dab3e82.
>
> One still needs to be careful, though, for instance because closing a
> chunked encoding port (which is a custom binary input port wrapped
> around the real socket port) still fails to close the raw socket port
> that’s behind the TLS session record port.
Unfortunately, the bug just reported by Valentin and by Ricardo are
instances of this problem (at least I checked with crates.io and it
uses chunked encoding, leading to a file descriptor leak):
https://issues.guix.gnu.org/issue/38857
https://issues.guix.gnu.org/issue/38836
To be continued…
Ludo’.
- bug#20145: (guix build download) leaks file descriptor on TLS connections,
Ludovic Courtès <=