Backport #3639: backport r27401 (preserve errno when releasing GVL)

• Status: Closed
• Assignee: yugui (Yuki Sonoda)

[normalperson (Eric Wong)]

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Not sure if there's going to be another 1.9.1 release, but when using
IO#read_nonblock, I've seen rb_bug() from rb_sys_fail() because errno == 0 under 1.9.1.

So r27401 from 1.9.2/trunk should fix the issue, but I'll probably abandon 1.9.1 for
1.9.2 soon anyways.
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[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Assigned
• Assignee set to yugui (Yuki Sonoda)
• Priority changed from 3 to 5

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[jeremyevans0 (Jeremy Evans)]

• Description updated (diff)
• Status changed from Assigned to Closed