Forum: Ruby-core [ruby-trunk - Bug #7855][Open] Rare segfault within yielding block

Issue #7855 has been reported by nathanaeljones (Nathanael Jones).

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Bug #7855: Rare segfault within yielding block
https://bugs.ruby-lang.org/issues/7855

Author: nathanaeljones (Nathanael Jones)
Status: Open
Priority: Normal
Assignee:
Category:
Target version:
ruby -v: ruby 1.9.3p362 (2012-12-25 revision 38607) 
[x86_64-darwin12.2.0]


I'm getting a segfault every few days inside an enumerator yield block:

        Enumerator.new  do |y|
          cache.each do |k,v|
            y << v if yield(v) #segfaulting here every million 
executions or so
          end
        end

Source code:
https://github.com/nathanaeljones/hardwired/blob/m...

Full crash info
https://gist.github.com/nathanaeljones/4686226

Another instance it happened
https://gist.github.com/nathanaeljones/4957920

Issue #7855 has been updated by ko1 (Koichi Sasada).

Status changed from Open to Feedback
Target version set to next minor

Could you give us more small reproduce-able code?
I'm not sure it is core's matter or 3rd party issue.

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Bug #7855: Rare segfault within yielding block
https://bugs.ruby-lang.org/issues/7855#change-36369

Author: nathanaeljones (Nathanael Jones)
Status: Feedback
Priority: Normal
Assignee:
Category:
Target version: next minor
ruby -v: ruby 1.9.3p362 (2012-12-25 revision 38607) 
[x86_64-darwin12.2.0]


I'm getting a segfault every few days inside an enumerator yield block:

        Enumerator.new  do |y|
          cache.each do |k,v|
            y << v if yield(v) #segfaulting here every million 
executions or so
          end
        end

Source code:
https://github.com/nathanaeljones/hardwired/blob/m...

Full crash info
https://gist.github.com/nathanaeljones/4686226

Another instance it happened
https://gist.github.com/nathanaeljones/4957920