In article <20110824184927.2697b0af@pitrou.net>, Antoine Pitrou wrote:

On Wed, 24 Aug 2011 15:31:50 +0200 Charles-François Natali wrote:

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The buildbots are complaining about some of tests for the new socket.sendmsg/recvmsg added by issue #6560 for *nix platforms that provide CMSG_LEN.

Looks like kernel bugs: http://developer.apple.com/library/mac/#qa/qa1541/_index.html

""" Yes. Mac OS X 10.5 fixes a number of kernel bugs related to descriptor passing [...] Avoid passing two or more descriptors back-to-back. """

But Snow Leopard, where these failures occur, is OS X 10.6.

But chances are the build is using the default 10.4 ABI. Adding MACOSX_DEPLOYMENT_TARGET=10.6 as an env variable to ./configure may fix it. There is an open issue to change configure to use better defaults for this. (I'm right in the middle of reconfiguring my development systems so I can't test it myself immediately but I'll report back shortly.) -- Ned Deily, nad@acm.org

In article <20110824205047.6be49525@pitrou.net>, Antoine Pitrou wrote:

On Wed, 24 Aug 2011 11:37:20 -0700 Ned Deily wrote:

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In article <20110824184927.2697b0af@pitrou.net>, Antoine Pitrou wrote:

...

On Wed, 24 Aug 2011 15:31:50 +0200 Charles-François Natali wrote:

...

...

The buildbots are complaining about some of tests for the new socket.sendmsg/recvmsg added by issue #6560 for *nix platforms that provide CMSG_LEN.

Looks like kernel bugs: http://developer.apple.com/library/mac/#qa/qa1541/_index.html

""" Yes. Mac OS X 10.5 fixes a number of kernel bugs related to descriptor passing [...] Avoid passing two or more descriptors back-to-back. """

But Snow Leopard, where these failures occur, is OS X 10.6.

But chances are the build is using the default 10.4 ABI. Adding MACOSX_DEPLOYMENT_TARGET=10.6 as an env variable to ./configure may fix it.

Does the ABI affect kernel bugs?

If it's more of a "libc" sort of bug (i.e. somewhere below the app layer), it could. But, unfortunately, that doesn't seem to be the case here. -- Ned Deily, nad@acm.org

In article , Charles-Francois Natali wrote:

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But Snow Leopard, where these failures occur, is OS X 10.6.

*sighs* It still looks like a kernel/libc bug to me: AFAICT, both the code and the tests are correct. And apparently, there are still issues pertaining to FD passing on 10.5 (and maybe later, I couldn't find a public access to their bug tracker): http://lists.apple.com/archives/Darwin-dev/2008/Feb/msg00033.html

Anyway, if someone with a recent OS X release could run test_socket, it would probably help. Follow ups to http://bugs.python.org/issue6560

I was able to do a quick test on 10.7 Lion and the 8 test failures still occur regardless of deployment target. Sorry, I don't have time to further investigate. -- Ned Deily, nad@acm.org