On Thu, Dec 02, 2004 at 07:45:21PM -0500, Ron Murray wrote: > Yep, I agree that you've probably found the problem. After I wrote > my previous post, I did some poking around with gdb on the XFree86 > executable. I found a sequence of bytes that looked a lot like the > ones you posted earlier, a little further on than you had (but my > current copy of XFree86 has lots of debugging code inbuilt). They even > had a call to malloc() in the middle of them. gdb claimed that the > code was in the middle of ELFLoadModule(), so I looked, and there it > was, complete with the same #ifdef you found earlier. I set up the > patch, started the build, and went home. With any luck, I'll have a > new (and hopefully functional) set of X packages when I get to work in > the morning. > > Only difference was that I didn't turn it on for all Linux, just > for ia86 and sparc. Wasn't sure whether it was a good idea or not. > > I'll let everyone know how it went. Thanks for finding it. I haven't seen followup from you on how it went, but I went ahead and applied your patch anyway. Thanks very much to you and the other people who contributed to this bug report. Sorry about the red herring I threw out regarding PCI domain issues -- I didn't mean to lead anyone astray I was just stabbing in the dark. Expect this to be fixed in 4.3.0.dfsg.1-9, assuming your tests succeeded. ------------------------------------------------------------------------ r2043 | branden | 2004-12-02 23:24:44 -0500 (Thu, 02 Dec 2004) | 6 lines Changed paths: M /trunk/debian/CHANGESETS M /trunk/debian/TODO M /trunk/debian/changelog M /trunk/debian/patches/071_nonexecutable_malloced_mem.diff M /trunk/debian/patches/600_amd64_support.diff Apply patch from Richard Mortimer to fix the XFree86 X server's ELF object loader to set the PROT_EXEC flag on mmap()ed modules regardless of machine architecture. (It was already trying to do this, but there are three preprocessor statements involved, and we were only patching one.) (Closes: #280384) ------------------------------------------------------------------------ -- G. Branden Robinson | I've made up my mind. Don't try to Debian GNU/Linux | confuse me with the facts. branden@debian.org | -- Indiana Senator Earl Landgrebe http://people.debian.org/~branden/ |
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