Bug #4535: [PATCH] fix race in blocking send_io/recv_io

• Status: Closed
• Assignee: kosaki (Motohiro KOSAKI)
• Target version: 2.0.0
• ruby -v: ruby 1.9.3dev (2011-03-28 trunk 31195) [x86_64-linux]

[normalperson (Eric Wong)]

=begin
There is no need to call select() before entering a blocking I/O
region since other threads may run. select() cannot guarantee
readability if the IO is shared across different
threads/processes. Furthermore, we actually need to select() on
EAGAIN/EINTR since the functions are intended to be blocking so
we move the select() calls into the retry loop.

=end

[normalperson (Eric Wong)]

• File 0002-test-socket-test_unix.rb-test-case-for-bug-4535.patch 0002-test-socket-test_unix.rb-test-case-for-bug-4535.patch added

=begin
I managed to get a reproducible test case working on a machine I have access to.
=end

[normalperson (Eric Wong)]

Eric Wong [e-mail] wrote:

---

Bug #4535: [PATCH] fix race in blocking send_io/recv_io
http://redmine.ruby-lang.org/issues/4535

Btw, this was pushed this out to my git repo for convenience, I've
just rebased and repushed:

git pull git://bogomips.org/ruby fix-unix-send-recv-io

I really look forward to this fix getting into trunk and backported to
1.9.2, thanks!

--
Eric Wong

[normalperson (Eric Wong)]

Eric Wong [e-mail] wrote:

---

Bug #4535: [PATCH] fix race in blocking send_io/recv_io
http://redmine.ruby-lang.org/issues/4535

Ping? This may become a big issue for some apps I'm working on.

--
Eric Wong

[ko1 (Koichi Sasada)]

• Status changed from Open to Assigned
• Assignee set to kosaki (Motohiro KOSAKI)

[akr (Akira Tanaka)]

• Status changed from Assigned to Closed