From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#30365: Offloading sometimes hangs
Date: Sat, 10 Feb 2018 12:07:13 +0100
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To: Ricardo Wurmus <rekado@elephly.net>
Cc: 30365@debbugs.gnu.org

Hello,

Ricardo Wurmus <rekado@elephly.net> skribis:

>> ludo@gnu.org (Ludovic Court=C3=A8s) skribis:
>>
>>> So what we have here is that the Scheme procedure =E2=80=98select=E2=80=
=99 returned
>>> stdin as =E2=80=9Cready for reading=E2=80=9D.  How did that happen?  I =
believe this is
>>> due to <https://bugs.gnu.org/30368>: =E2=80=98scm_i_prepare_to_wait_on_=
fd=E2=80=99
>>> returns 1, so =E2=80=98select=E2=80=99 returns EINTR but it does so wit=
hout clearing the
>>> FD sets.
>>
>> I=E2=80=99ve pushed a workaround here:
>>
>>   https://git.savannah.gnu.org/cgit/guix.git/commit/?id=3D8446dc5a360e3a=
13fecea870f86efdbd893e3905
>>
>> and guix-0.14.0-8.bc880f9 includes that fix.
>>
>> It=E2=80=99s been running for several hours on berlin, building a bunch =
of
>> things notably on aarch64, and it seems to work well!
>
> Congratulations on figuring this out!

Well it did show up again during the night.  :-/  So the problem appears
less frequently it seems, but it still appears.

A related issue is that =E2=80=98guix offload=E2=80=99 doesn=E2=80=99t time=
 out in this case
but it probably should.

Ludo=E2=80=99.