t/lru-crawler.t sometimes fail

[GoogleCodeExporter]

What steps will reproduce the problem?
1. build memcached
2. run "make test"

What is the expected output?
End of testsuite witout any error

What do you see instead?
testsuite sometimes stop with:
 Timeout.. killing the process
 t/lru-crawler.t ...... 
 Failed 126/221 subtests 

What version of the product are you using? On what operating system?
1.4.24 on Debian GNU/Linux unstable

Please provide any additional information below.

Other users seems to reproduce this randomly:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=789835
http://forums.famillecollet.com/viewtopic.php?id=3165
https://code.google.com/p/memcached/issues/detail?id=398
http://webcache.googleusercontent.com/search?q=cache:2j2npL8eOAMJ:https://arch-c
i.org/extra/memcached/log/+&cd=10&hl=fr&ct=clnk

Original issue reported on code.google.com by guillaum...@gmail.com on 29 Jun 2015 at 8:33

[GoogleCodeExporter]

how often does this happen? Does it happen if you run the test on its own in a 
loop? like:
while true ; do prove t/lru-crawler.t ; done

Original comment by dorma...@rydia.net on 5 Jul 2015 at 1:09