[ruby-dev:50598] [Ruby trunk Bug#14865] Raising exception in c_return event hook causes infinite loop
From:
usa@...
Date:
2018-07-30 14:11:54 UTC
List:
ruby-dev #50598
Issue #14865 has been updated by usa (Usaku NAKAMURA).
Backport changed from 2.3: WONTFIX, 2.4: REQUIRED, 2.5: REQUIRED to 2.3: WONTFIX, 2.4: DONE, 2.5: REQUIRED
ruby_2_4 r64129 merged revision(s) 63727.
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Bug #14865: Raising exception in c_return event hook causes infinite loop
https://bugs.ruby-lang.org/issues/14865#change-73223
* Author: ktsj (Kazuki Tsujimoto)
* Status: Closed
* Priority: Normal
* Assignee:
* Target version:
* ruby -v: ruby 2.6.0dev (2018-06-23) [x86_64-linux]
* Backport: 2.3: WONTFIX, 2.4: DONE, 2.5: REQUIRED
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c_returnのイベントフックの中で例外を起こすと無限ループになるケースがあります。
例外発生時にフレームがポップされずスタックに残り続けてしまうのが原因です。
~~~
$ cat t.rb
TracePoint.new(:c_return){|tp|
p tp.method_id
raise
}.enable{
tap{ itself }
}
$ ruby t.rb
:itself
:tap
:tap
(snip)
~~~
--
https://bugs.ruby-lang.org/