From: shugo@ruby-lang.org
To: ruby-core@ruby-lang.org
Subject: [ruby-core:71258] [Ruby trunk - Bug #11384] multi-threaded autoload sometimes fails
Date: Thu, 29 Oct 2015 02:09:54 +0000 [thread overview]
Message-ID: <redmine.journal-54631.20151029020953.471d37c6cb314a84@ruby-lang.org> (raw)
In-Reply-To: redmine.issue-11384.20150722005813@ruby-lang.org
Issue #11384 has been updated by Shugo Maeda.
Eric Wong wrote:
> shugo@ruby-lang.org wrote:
> > The script causes an error within 100 times on My Ubuntu 14.04 box,
> > but it runs over 10,000 times with your patch.
>
> Is my patch still running beyond 10,000 times?
It's still running beyond 49,000 times on my notebook, which sleeps at night.
I'll inform you if any error occurs.
----------------------------------------
Bug #11384: multi-threaded autoload sometimes fails
https://bugs.ruby-lang.org/issues/11384#change-54631
* Author: Eric Wong
* Status: Closed
* Priority: Normal
* Assignee:
* ruby -v: trunk r51319
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
~~~
I get this failure once in a blue moon:
#8 test_autoload.rb:46:in `<top (required)>':
open("zzz.rb", "w") {|f| f.puts "class ZZZ; def self.ok;:ok;end;end"}
autoload :ZZZ, "./zzz.rb"
t1 = Thread.new {ZZZ.ok}
t2 = Thread.new {ZZZ.ok}
[t1.value, t2.value].join
#=> "" (expected "okok")
stderr output is not empty
bootstraptest.tmp.rb:5:in `block in <main>': uninitialized constant ZZZ (Name
+Error)
test_autoload.rb FAIL 1/8
FAIL 1/1010 tests failed
It is a very rare failure, I extracted it into a standalone script and
it took over 500,000 runs to hit it:
unless test(?e, "zzz.rb")
open("zzz.rb", "w") {|f| f.puts "class ZZZ; def self.ok;:ok;end;end"}
end
autoload :ZZZ, "./zzz.rb"
t1 = Thread.new {ZZZ.ok}
t2 = Thread.new {ZZZ.ok}
[t1.value, t2.value].join
~~~
I'll work on this when I find time, but maybe somebody else can look at it
sooner. I'm not sure if it affects older versions.
--
https://bugs.ruby-lang.org/
next prev parent reply other threads:[~2015-10-29 1:42 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <redmine.issue-11384.20150722005813@ruby-lang.org>
2015-07-22 0:58 ` [ruby-core:70075] [Ruby trunk - Bug #11384] [Open] multi-threaded autoload sometimes fails normalperson
2015-10-28 5:54 ` [ruby-core:71239] [Ruby trunk - Bug #11384] " shugo
2015-10-28 9:03 ` [ruby-core:71241] " Eric Wong
2015-10-28 23:14 ` [ruby-core:71256] " Eric Wong
2015-10-28 23:49 ` [ruby-core:71257] " Eric Wong
2015-10-29 2:09 ` shugo [this message]
2015-11-03 3:33 ` [ruby-core:71305] " Eric Wong
2017-05-11 23:43 ` [ruby-core:81105] [Ruby trunk Bug#11384][Open] " s.wanabe
2017-05-12 0:01 ` [ruby-core:81106] " Eric Wong
2017-05-12 21:51 ` [ruby-core:81130] [Ruby trunk Bug#11384] " normalperson
2017-06-30 10:56 ` [ruby-core:81853] " usa
2017-07-09 20:46 ` [ruby-core:81984] " nagachika00
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