Forum: Ruby-core [Closed] ConditionVariable may become inconsistent for interrupted threads

Issue #3212 has been updated by kosaki (Motohiro KOSAKI).

Tracker changed from Bug to Backport
Description updated
Status changed from Open to Closed

ConditionVariable @waiter issue was fixed at r38080.

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Backport #3212: ConditionVariable may become inconsistent for 
interrupted threads
https://bugs.ruby-lang.org/issues/3212#change-34768

Author: sylvain.joyeux (Sylvain Joyeux)
Status: Closed
Priority: High
Assignee:
Category: core
Target version:


=begin
 While tracking another issue with ConditionVariable, I realized that 
ConditionVariable#wait assumes that the waking-up side (#signal and 
#broadcast) will remove the thread from the list of waiters.

 Unfortunately, Mutex#sleep may return right away if an interrupt is set 
for the thread, in which case the thread will stay in the condition 
variable's waiting list.
=end