On Thursday 10 February 2005 09:33 pm, Blaisorblade wrote: > > Sorry, meant UML. > > > > (I have a cold.) > > Best wishes for your health... (please, someone translate this to real > English :-) )
Oh, it's real english. (Or at least it seems so to someone who just burned french toast to charcoal due to being too dizzy to walk down the street to a sandwich shop. I'm not exactly firing on all cylinders at present...) > > So if I build 2.6.11-rc3-bk? I can fire up SKAS0 mode and run it on an > > unmodified kernel? If so, I'm happy to test this... (I read Jeff Dike's > > blog entry on SKAS0, but it didn't really have any implementation > > details.) > > Well, code already exists. Get the appropriate -mm tree and apply on top of > it the "incrementals" tree at > http://user-mode-linux.sourceforge.net/patches.html. > > Give a quick read to the changelogs to get a feeling about what's actually > needed and what won't at all compile. I guess that in this moment skas0-ldt > is a good point to stop at. Cool. "Not tonight, I have a headache", but cool. > Yes, obviously... actually, I also have made some confusion (I actually > answered to "why UML in TT mode is built static?", not to the bug in TT > mode). > > ***MARKED*** > The bug in TT mode: actually, it happens when and because UML is statically > linked, against NPTL glibc. It does not happen on normal distros, which > provide a LinuxThreads glibc in /lib and for static linking to be 2.4 > compatible; nor in Gentoo with nptl disabled (which was the default when I > installed it). > > The problem, currently, is that there are problems (and linker assertion > failures) probably because the linking scripts do not play well with > the /usr/lib/libc.a sections. The error, if I recall it correctly, is > posted in the comment #6. Gee, Red Hat, the distro that brought us gcc 2.96, is now having ld throw assertion failures trying to build UML. It's nice to see tradition maintained... I can't debug this one. I gave up on Fedora when FC2 wouldn't boot on my desktop because the kernel was optimized for a processor more recent than the machine had (brand new Via Samuel 2, basically a Pentium clone with MMX and 3DNow). I was a loyal Red Hat user for years, but Fedora just left me cold. (And the _courage_ they've shown, yanking things like mp3 player support and xpdf... Obviously they're a good ally to stand up for decss someday.) > Stuff below refers to "Why UML in TT mode is built static?" > > > but first > > I want to confirm that you looked at the new 2.6 nonlinear mappings > > support (mm/fremap.c, sys_remap_file_pages() and friends...) > > Hmm, I know that feature, only I don't understand how it could help > *here*... basically, I think everything that you can do through > remap_file_pages() can be done through mmap() / munmap() / mremap(), and > the advantage is only for performance... and since the mappings in this > case are created > > So, when and if there will be a remap_file_pages where you can also change > protections and we'll drop all the mmap() we must create Tried asking on linux-kernel? Rob ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
