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Date:	Sun, 22 Feb 2015 22:54:37 +0200
From:	Lasse Collin <lasse DOT collin AT tukaani DOT org>
To:	cygwin AT cygwin DOT com
Subject:	Unexpected EINVAL from pthread_join
Message-ID:	<20150222225437.271e929b@tukaani.org>
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It seems that a signal can cause pthread_join to incorrectly return
EINVAL. I debugged it only a little but hopefully someone finds this
useful:

In the file thread.cc, function pthread::join, the call to cygwait may
return WAIT_SIGNALED if a signal is sent to the process. The switch
statement handling the return value assumes that only WAIT_OBJECT_0 and
WAIT_CANCELED are possible. The default section of the switch statement
has a comment "should never happen" and it returns EINVAL. It might be
that the problem occurs only when SA_RESTART isn't used.

-- 
Lasse Collin  |  IRC: Larhzu @ IRCnet & Freenode

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