Date: Fri, 16 Mar 2007 12:00:38 +0100 From: Alexander Leidinger <Alexander@Leidinger.net> To: jkim@freebsd.org, kib@freebsd.org, rdivacky@freebsd.org Cc: emulation@freebsd.org Subject: 2.6.16 for linuxulator & 7.0 release Message-ID: <20070316120038.2iizia24mc4wcw8s@webmail.leidinger.net>
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Hi, ATM it doesn't look like we can enable 2.6.16 by default in 7.0. The reasons: - java showstopper (epoll not implemented) - futex/TLS for amd64 not in -current for testing - futexes not completely right - *at() not implemented - the time to test a 2.6.16 default until 7.0 shrinks fast Roman has some preliminary work regarding *at() and it looks good to him. He wants me to test some stuff but I don't have enough time in the next weeks because of work related stuff. Any volunteers to help out? In p4 we have the futex/TLS stuff for amd64 but because of the futexes not completely right part it is not committed to current yet. As we already have the futex and TLS stuff for i386 on a similar level in current, I would say we should go ahead and sync the amd64 stuff. It is not used by default, so we don't break existing linux stuff and we get the benefit of more people being able to have a look at it and play with it. So what are your opinions, shall we give jkim@ the green light to MFp4 the futex/TLS stuff? Regarding the futexes not being completely right and the epoll stuff: I think it needs to be done now, not in a month or two, else we don't have enough time to let people play with this before the release of 7.0. Anyone with a little bit of time at hand out there? We need a specification what the futexes are supposed to do (so far we didn't find a good description, and the linux code is hard to read and doesn't not really tell what it is _supposed_ to do) and we need people which compare the current code we have with this specification. Finding a regression test for futexes would also be nice. Bye, Alexander. -- TODAY: A nice place to visit, but you can't stay here for long. http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137help
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