Bug #5529: Bus error with Fibers on OSX Lion

• Status: Rejected
• Assignee: mrkn (Kenta Murata)
• Target version: 1.9.3
• ruby -v: ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0]

[pragdave (Dave Thomas)]

=begin
The attached program crashes with the following trace:

dave[ruby3/Book 11:18:39] ruby /tmp/prog.rb
cat
dog
/tmp/prog.rb:2: [BUG] Bus Error
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0]

-- Control frame information -----------------------------------------------
c:0003 p:0015 s:0005 b:0005 l:002508 d:000004 BLOCK /tmp/prog.rb:2
c:0002 p:---- s:0003 b:0003 l:000002 d:000002 FINISH
c:0001 p:---- s:0001 b:-001 l:000000 d:000000 ------

-- Ruby level backtrace information ----------------------------------------
/tmp/prog.rb:2:in `block in '

-- C level backtrace information -------------------------------------------

See Crash Report log file under ~/Library/Logs/CrashReporter or
/Library/Logs/CrashReporter, for the more detail of.

-- Other runtime information -----------------------------------------------

• Loaded script: /tmp/prog.rb

• Loaded features:

0 enumerator.so
1 /Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/x86_64-darwin11.2.0/enc/encdb.bundle
2 /Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/x86_64-darwin11.2.0/enc/trans/transdb.bundle
3 /Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/defaults.rb
4 /Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/x86_64-darwin11.2.0/rbconfig.rb
5 /Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/deprecate.rb
6 /Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/exceptions.rb
7 /Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb
8 /Users/dave/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/site_ruby/1.9.1/rubygems.rb

[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
=end

[pragdave (Dave Thomas)]

• Target version set to 1.9.3

[mrkn (Kenta Murata)]

=begin
Hi Dave,
I cannot reproduce the bus error.

[09:25:17#3]mrkn$ ruby -v ~/Downloads/prog.rb
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0]
cat
dog
cat
dog

Please tell us your compile options and your compiler version.
=end

[mrkn (Kenta Murata)]

• Category set to core
• Assignee set to mrkn (Kenta Murata)

[pragdave (Dave Thomas)]

• File ruby-1.9.3-p0.tgz ruby-1.9.3-p0.tgz added

I've attached the rvm logs from the installation

[pragdave (Dave Thomas)]

Dave Thomas wrote:

I've attached the rvm logs from the installation

Also, looking at your output—why is it writing cat/dog/cat/dog? Shouldn't it just be one 'cat' and one 'dog'?

Dave

[mrkn (Kenta Murata)]

Dave Thomas wrote:

Also, looking at your output—why is it writing cat/dog/cat/dog? Shouldn't it just be one 'cat' and one 'dog'?

Last two lines of output are the result of "puts ['cat', 'dog']", this array is the return value of the fiber block.

[pragdave (Dave Thomas)]

Kenta Murata wrote:

Dave Thomas wrote:

Also, looking at your output—why is it writing cat/dog/cat/dog? Shouldn't it just be one 'cat' and one 'dog'?

Last two lines of output are the result of "puts ['cat', 'dog']", this array is the return value of the fiber block.

Of course. Sorry...

I have more information. I removed rvm totally from this machine and reinstalled both 1.9.2 and 1.9.3. Both versions now show this problem (previously 1.9.2 worked). These are the first interpreters I have installed since upgrading this machine to Lion.

So I tried it on my laptop, also running Lion. Both 1.9.2 and 1.9.3 work there.

This appears to be a local configuration issue on my machine.

Sorry for the false alarm.

[telemachus (Peter Aronoff)]

On Tue Nov 01 2011 @ 11:11, Dave Thomas wrote:

I have more information. I removed rvm totally from this machine and
reinstalled both 1.9.2 and 1.9.3. Both versions now show this problem
(previously 1.9.2 worked). These are the first interpreters I have
installed since upgrading this machine to Lion.

So I tried it on my laptop, also running Lion. Both 1.9.2 and 1.9.3 work
there.

This appears to be a local configuration issue on my machine.

Sorry for the false alarm.

This may or may not be relevant, but the newest versions of Xcode (4.2
and/or 4.2.1) don't seem to install gcc-4.2 at all (only the llvm-gcc). It
may be that you're seeing problems due to the compiler being different on
the two machines?

See this issue for related discussion:
https://github.com/sstephenson/ruby-build/issues/62

--
[D]igital information lasts forever--or five years, whichever comes first.
"Ensuring the Longevity of Digital Information", Jeff Rothenberg

[mrkn (Kenta Murata)]

• Status changed from Open to Rejected