Problems of New Linuxulator I Have Known

1. Many options of clone(2) are not correctly implemented, some of
which may cause application crash when it wants to clone
memory-independent process.

2. TLS (Thread Local Storage) support in clone(2), set_thread_area(2)
and get_thread_area(2) doesn't conform to Linux 2.6.x, which can
damage stack of Linux application using NPTL (Native POSIX Threads
Library).

Of course, to obtain the conformation, FreeBSD native GDT must be
rearranged. But Linux NPTL is quite essential for modern Linux
applications.

3. wakeup_one(9) instead of wakeup(9) should be used for futex(2) to
wake up a single sleeping thread.

4. Some options of clock_gettime(2) actually can be implemented, though
FreeBSD native implementation is different from Linux's.

5. Code style problems: member naming of structure, macro naming,
function naming, encapsulation for queue(3) and so on.

In a word, may ORACLE 10g for Linux be able to run under FreeBSD soon.

------------------------------------------------------------------------
From Beijing, China

Alexander Leidinger wrote:

Quoting Divacky Roman <xdivac02@xxxxxxxxxxxxxxxxx> (from Fri, 25 Aug 2006 10:47:55 +0200):

I have some more fixes uncommited which might fix the acroread.

For the curious: http://www.leidinger.net/FreeBSD/linuxolator/013_linuxolator_final_uncommi tted.diff

Bye,
Alexander.

--
In any country there must be people who have to die. They are the
sacrifices any nation has to make to achieve law and order.
-- Idi Amin Dada

http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7
http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137


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