xorg-server-1.5.x (tried with 1.5.2 & 1.5.3) crashes on startup when using ati binary video driver (ati-drivers-8.552-rx) and dri is enabled on this amd64 hardened workstation here. NO problem with xorg without dri or xorg-driver radeonhd! xorg-1.3.x runs flawless with same ati-drivers and default paxctl-settings... pax.log shows: execution attempt in: <anonymous mapping>, 76760b38a000-76760b398000 76760b38a000 PAX: terminating task: /usr/bin/Xorg(X):4613, uid/euid: 0/0, PC: 000076760b390ac0, SP: 00007d9d28fe9218 PAX: bytes at PC: 55 c7 c0 4a 00 ff ff 48 8b ef 48 8b 45 00 0f ae 00 5d c3 00 PAX: bytes at SP-8: Solution is to disable PAX mprotect-feature for xorg: paxctl -m /usr/bin/Xorg Reproducible: Always Steps to Reproduce: 1.emerge >xorg-server-1.5.2 && emerge ati-drivers 2.set fglrx as video driver 3.startx Actual Results: Gets killed by PAX-Control Expected Results: should run fine ebuild should run paxctl -m after install on hardened and binary xorg-drivers
This bug is a duplicate of http://bugs.gentoo.org/show_bug.cgi?id=244352 Though in both bug reports X is killed by a different thing (PaX versus the SSP system built into GCC in the hardened toolchain), the bug in xorg-server is the same in both.
bug 244352 has been fixed in the latest stable version of xorg-server. If you can still reproduce with newer version of xorg-server, please don't hesitate to reopen this bug. Thanks
