From: ko1@...
Date: 2015-08-24T09:12:06+00:00
Subject: [ruby-core:70564] [Ruby trunk - Bug #11480] [Open] killed by SIGIOT	(signal 6) on fork

Issue #11480 has been reported by Koichi Sasada.

----------------------------------------
Bug #11480: killed by SIGIOT (signal 6) on fork
https://bugs.ruby-lang.org/issues/11480

* Author: Koichi Sasada
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.3.0dev (2015-08-24 trunk 51672)
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
bootstraptest/test_fork.rb failed sometimes on my environment ("Ubuntu 14.04.3 LTS" Linux 3.13.0-62-generic x86_64).

```
#253 test_fork.rb:24:in `<top (required)>':
     Thread.new { sleep 0.01 until main.stop?; Thread.kill main }
     Process.setrlimit(:NPROC, 1)
     fork {}
  #=> killed by SIGIOT (signal 6)
| [ASYNC BUG] rb_thread_wakeup_timer_thread - write
| EPIPE
|
| ruby 2.3.0dev (2015-08-24 trunk 51672) [x86_64-linux]
|
| [NOTE]
| You may have encountered a bug in the Ruby interpreter or extension libraries.
| Bug reports are welcome.
| For details: http://www.ruby-lang.org/bugreport.html
|
```

I need to run the script many many times to see this error.

```
$ while make up all -j && make install-nodoc check update-rubyspec test-rubyspec; do   date; done
```




-- 
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