Subject: bug#55206: Intermittent ldap test failure

From: Timotej Lazar <[email-masked]>
Date: Thu, 23 Jun 2022 18:28:53 +0200

Hi,

Mathieu Othacehe <[email-masked]> [2022-05-01 13:09:19+0200]:
> The ldap test in intermittently failing:
> https://ci.guix.gnu.org/build/703858/log/raw.

I just encountered the same failure with a different error:

    komputilo login: Traceback (most recent call last):
      File "/gnu/store/jkfbqqv7dk38xr1a214razjlxip49hip-389-ds-base-1.4.4.17/sbin/.dsctl-real", line 20, in <module>
    …
    OSError: [Errno 12] Cannot allocate memory: '/gnu/store/jkfbqqv7dk38xr1a214razjlxip49hip-389-ds-base-1.4.4.17/lib/python3.9/site-packages/lib389/cli_ctl'

About 50% of test runs fail, either with this error or the one from the
original report.

After increasing the memory limit for the test VM, I was able to run the
test successfully ten times on two different machines. The patch is
attached.

>From 7e187015b49469671d9a25e5c1f3892f5e396ac6 Mon Sep 17 00:00:00 2001
From: Timotej Lazar <[email-masked]>
Date: Thu, 23 Jun 2022 18:13:29 +0200
Subject: [PATCH] tests: ldap: Increase VM memory size.
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With the default limit of 512 MB the test sometimes fails, in different
ways. Fixes https://issues.guix.gnu.org/55206.

* gnu/tests/ldap.scm (run-ldap-test): Increase memory size to 1024 MiB.
---
 gnu/tests/ldap.scm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gnu/tests/ldap.scm b/gnu/tests/ldap.scm
index d5403b3539..47e77c0c53 100644
--- a/gnu/tests/ldap.scm
+++ b/gnu/tests/ldap.scm
@@ -58,7 +58,9 @@ (define os
                           (guix combinators))))
 
   (define vm
-    (virtual-machine os))
+    (virtual-machine
+     (operating-system os)
+     (memory-size 1024)))
 
   (define test
     (with-imported-modules '((gnu build marionette))
-- 
2.36.1