Messages in this thread | | | From | Goran Cengic <> | Subject | Re: Special place for tird-party modules. | Date | Thu, 29 Apr 2004 10:15:59 +0200 |
| |
On Wednesday 28 April 2004 21.18, Valdis.Kletnieks@vt.edu wrote: > On Wed, 28 Apr 2004 18:14:24 +0200, Goran Cengic <cengic@s2.chalmers.se> said: > > I do understand that many developers have several kernel version > > installed at the same time but is it possible to share between the > > versions at least the modules that are not developed as the part of the > > kernel? > > > > If I'm missing something cruical please point it out to me. > > What you're missing is the reason for modversions to exist - the fact that > the kernel API *does* change between releases, and even within the same > source tree (UP vs SMP builds, for instance). If we supported what you're > suggesting, then the following *will* happen: > > 1) Binary module for 2.6.N is released that uses an API that takes 5 > parameters. 2) 2.6.N+1 comes out, and said API has another parameter added > (see the recent tweak-fest for elf_map() for an actual example). > 3) User loads old binary into kernel. > 4) Kernel OOPs when it dereferences the non-existent 6th parameter that > wasn't passed by the un-updated binary.
Ok, I get it :) Thank you!
/Goran
---------------------------------- Goran Cengic mailto:cengic@s2.chalmers.se ---------------------------------- Have a nice day :) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |