On Tuesday 05 April 2005 19:23, Rob Landley wrote: > On Monday 04 April 2005 09:32 am, Blaisorblade wrote: > > > Is this a case where I should be upgrading my host kernels (will do > > > that in time anyway)? > > > > You simply need to update the SKAS patch version. -V2 is very old, and > > many bugs (including this, that is a bug in the SYSEMU part of the SKAS > > patch). Upgrading to -V7 for the SKAS patch, even on the same host kernel > > version (i.e. against 2.6.8.1), would fix that. > > > > Also, some older guest kernels may seem to work, because they don't > > diagnose such bugs. But actually they have problems in some situations, > > because of the host bugs. For instance panicking with a simple "echo 0 > > > /proc/sysemu; echo 1 > /proc/sysemu". > > > > > Or is there something that can be done on the guest to make it work on > > > older kernels also? > > > > Not a lot, except disabling SYSEMU (and its performance advantage) > > entirely - add the "nosysemu" param to the UML command line and it will > > work. > > > > But it won't be as slow as if you didn't use SKAS. > > > > Bye > > Speaking of which, I ask this from time to time: > > What's the minimal patch set that _just_ adds -SKAS0 mode to something like > a 2.6.11 kernel? I'd like to try it out, but every time I sit down to > whack at it my interest budget runs out sifting through a mountain of > unrelated x86-64 patches to try to figure out what exactly I need to apply > to get just SKAS0... Also, I forgot: during your development work use SKAS. It doesn't give any big difference visible inside the Virtual Machine (except for bugs). -- Paolo Giarrusso, aka Blaisorblade Linux registered user n. 292729 http://www.user-mode-linux.org/~blaisorblade
------------------------------------------------------- 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 [email protected] https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
