Re: dosemu 1.1.5.6

[Stas Sergeev <stsp@aknet.ru>]

Hello.

>> Is there any chance for ALTLinux to get upgraded to
>> NPTL so that you can test the patches?
> Not sure about ALT Linux, but I can build kernel myself. 
> (Or it was about glibc?)
I am afraid it is about both.

> What is NPTL, BTW, and how to enable it?
Not easy, unless you have RedHat9, where it
is enabled by default (hence the problems).
You have to install an RH-patched kernel, like
"kernel-2.4.21-20.1.2024.2.1.nptl RPM for i686"
and the RH-patched glibc >= 2.3.1-7.
Then you can do
getconf GNU_LIBPTHREAD_VERSION
and it will answer "NPTL" instead of the usual
"LinuxThreads".
Then you just start dosemu and it should crash
on any DPMI app, but not if you are using its
startup script which now disables NPTL with
that LD_ASSUME_KERNEL trick.

> I didn't found such bug report at sourceforge,
Here it is:
https://sourceforge.net/tracker/index.php?func=detail&aid=770746&group_id=49784&atid=457447
That guy provided me with an access to his RH
system, but he put there only one DPMI testcase
which he wrote himself: that program only switches
to prot.mode and does nothing. With that my patch
dosemu doesn't crash on that prog, but as the prog
does nothing, this is not a sufficient testing.
And the guy himself got tired of patches and simply
upgraded from CVS :(

> so can you describe me a testcase?
Any DPMI program basically. FoxPro will do just
fine for example.

> I'll be glad to check it.
Let's see how easy will it be to turn your distro
to an NPTL-enabled one. I am afraid also some
other progs may stop working, so don't do that
unless you have a separate machine for testings
or RH9 distro handy.