GNU bug report logs - #39490
[core-updates] fftw 3.3.8 test suite can hang

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Subject: bug#39490: closed (Close)
Date: Fri, 22 Nov 2024 17:30:03 +0000

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Your bug report

#39490: [core-updates] fftw 3.3.8 test suite can hang

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 39490 <at> debbugs.gnu.org.

-- 
39490: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=39490
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Andreas Enge <andreas <at> enge.fr>
To: 39490-done <at> debbugs.gnu.org
Subject: Close
Date: Fri, 22 Nov 2024 18:29:14 +0100

Closing the bug, in the hope that newer versions of fftw work well.
In any case, we have not had recurring problems with building.

Andreas

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From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: bug-guix <bug-guix <at> gnu.org>
Subject: [core-updates] fftw 3.3.8 test suite can hang
Date: Fri, 07 Feb 2020 14:08:14 -0500

I encountered a single occurrence of this while building core-updates
(2073b55e6b964cb8ca15e8c74cb32dac00f05f0d).  I couldn't reproduce the
hang a 2nd time, but in case it'd occur to someone else, I'm reporting
the problem here.

The build appears to be hung, peeking a single CPU core with no output.

The last output printed is:

--8<---------------cut here---------------start------------->8---
Executing "/tmp/guix-build-fftw-3.3.8.drv-0/fftw-3.3.8/tests/bench -o nthreads=2 --verbose=1   --verify 'ofr39v157' --verify 'ifr39v157' --verify '//obc39v157' --verify '//ibc39v157' --verify '//ofc39v157' --verify '//ifc39v157' --verify 'obc39v157' --verify 'ibc39v157' --verify 'ofc39v157' --verify 'ifc39v157' --verify 'ok7e00x27o11v28' --verify 'ik7e00x27o11v28' --verify '//obr23232' --verify '//ibr23232' --verify '//ofr23232' --verify '//ifr23232' --verify 'obr23232' --verify 'ibr23232' --verify 'ofr23232' --verify 'ifr23232' --verify '//obc23232' --verify '//ibc23232' --verify '//ofc23232' --verify '//ifc23232' --verify 'obc23232' --verify 'ibc23232' --verify 'ofc23232' --verify 'ifc23232' --verify 'ok11e11x6bv16' --verify 'ik11e11x6bv16' --verify 'obr3x6v25' --verify 'ibr3x6v25' --verify 'ofr3x6v25' --verify 'ifr3x6v25' --verify '//obc3x6v25' --verify '//ibc3x6v25' --verify '//ofc3x6v25' --verify '//ifc3x6v25' --verify 'obc3x6v25' --verify 'ibc3x6v25' --verify 'ofc3x6v25' --verify 'ifc3x6v25' --verify 'ok10bx8e10x7bx5o01*8' --verify 'ik10bx8e10x7bx5o01*8'"
ofr39v157 3.88346e-16 2.86256e-16 7.57002e-16
ifr39v157 3.47982e-16 2.86256e-16 7.02064e-16
//obc39v157 3.94083e-16 5.72513e-16 8.78504e-16
//ibc39v157 4.03859e-16 4.29385e-16 9.40757e-16
//ofc39v157 4.42394e-16 4.29385e-16 8.87713e-16
//ifc39v157 4.12348e-16 4.29385e-16 8.5851e-16
obc39v157 4.0602e-16 4.29385e-16 8.48734e-16
ibc39v157 3.73274e-16 4.29385e-16 8.9751e-16
ofc39v157 3.97926e-16 4.29385e-16 8.07659e-16
ifc39v157 4.07119e-16 4.29385e-16 7.61853e-16
ok7e00x27o11v28 3.41262e-16 4.83151e-15 3.96424e-16
ik7e00x27o11v28 3.94159e-16 4.37137e-15 3.94158e-16
--8<---------------cut here---------------end--------------->8---

The 'bench' program is the one responsible for such a long execution/hang.

The build of fftw had been ongoing for about 500 CPU minutes.  It may be
related to the tests using more than one thread (some deadlock perhaps).

Maxim

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