On Wednesday 17 January 2007 18:15, Pravin wrote: > Thanx :-) > Its working now.... :-) > > One more thing that I would like to tell here. > I did used same compiled kernel on other machine which was having > 2.6.17-1.2187_FC5. > And that kernel 2.6.19 without your patch did worked fine.... > > but same kernel 2.6.19 was not working on my machine which is Debian > 2.6.18. After applying your patch and changing the configuration to > HOST_2G_2G its working fine now on my Debian machine 2.6.18. > > Can I know what excatly was the problem... ?
Usually the host kernel "gives"* a certain space (3G) to userspace apps. Some host kernels give less memory (say 2,75G, 2G, or even 1G) to userspace apps (these days, it depends on the CONFIG_VMSPLIT_* settings, before it could be tuned via external patches like -ck patchset or probably others). Most application use the available memory, but UML, for now, needs to know that it can use a given amount - say 2G. It will run fine when more memory is available, but not when less memory is available. At last, why different splits? While 3G is usual (normally named 3G/1G), on a host with 1G of RAM you either use HIGHMEM (with a little slowdown) or use a 2,75G/1,25G split. * This is "virtual address space", not a statical split assigning physical RAM to different purposes - but I won't go in the details here. > My main objective is to run SELinux on UML kernel and test it. Probably Antoine Martin is the one having more experience on UML+SELinux. This is his page on the argument: http://uml.nagafix.co.uk/SELinux/ > Let me know if there is anything I can do to help here. > > On 1/17/07, Blaisorblade <[EMAIL PROTECTED]> wrote: > > You mentioned trying to use CONFIG_HOST_VMSPLIT to solve a problem, that > > is of little use without this applied, if you run UML in SKAS0 mode. > > > > ---------- Forwarded Message ---------- -- Inform me of my mistakes, so I can add them to my list! Paolo Giarrusso, aka Blaisorblade http://www.user-mode-linux.org/~blaisorblade Chiacchiera con i tuoi amici in tempo reale! http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ User-mode-linux-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
