On Fri, Feb 04, 2005 at 06:28:11PM +0000, Piotr Kaczuba wrote: > I have been experiencing the same problem with xserver 4.3.0.dfsg.1-10, > even with noexec=off. The symptoms were signal 11 on first xfree module > load and strace showing that mprotect failed with EINVAL. > The problem was that the address passed to mprotect wasn't aligned to > the pagesize (4096). I've searched on google and found a rather old > patch from Redhat that solves the error. > I've applied the attached patch on top of all the other ones from > 4.3.0.dfsg.1-10 source and X is now running fine. > > Just saw that I've deleted the patch tailored for debian, so attached > is the original one from Redhat. The linux defines are already present > in debian, so you only need the mprotect part. Thanks, Piotr! I am applying this patch; you can expect it to be in the next release. I notice that the page-alignment patch is algorithmically the same as code that was already present in the other use of mprotect() in elfloader.c; that it wasn't updated indicates that someone was careless when hacking on this file in the past. Thanks again. -- G. Branden Robinson | Half of being smart is knowing what Debian GNU/Linux | you're dumb at. branden@debian.org | -- David Gerrold http://people.debian.org/~branden/ |
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