GNU bug report logs - #56005
"write_wait_fd: unimplemented" error from 'guix substitute'

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From: Maxime Devos <maximedevos <at> telenet.be>
To: Thiago Jung Bauermann <bauermann <at> kolabnow.com>, 56005 <at> debbugs.gnu.org
Cc: control <at> debbugs.gnu.org
Subject: bug#56005: "write_wait_fd: unimplemented" during downloading substitutes
Date: Thu, 16 Jun 2022 09:58:24 +0200

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retitle 56006 "write_wait_fd: unimplemented" during downloading substitutes
thanks

Thiago Jung Bauermann via Bug reports for GNU Guix schreef op wo 15-06-
2022 om 23:40 [-0300]:
> I had a quick look at ‘fetch-narinfos’ but I couldn't figure out what
> could be calling into this unimplemented function ‘write_wait_fd’…

Untested hypothesis: maybe writing to the TLS-wrapped port constructed
in (guix build download) blocked, so Guile's port code ran
'write_wait_fd', which was not set for the TLS port (in the GnuTLS
library)?  Alternatively: maybe 'make-custom-binary-input/output-port'
in (guix build download) was used incorrectly?

Greetings,
Maxime.

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