Bug 255141

Summary:	games-emulation/pcsx segfaults with NX heap
Product:	Gentoo Linux	Reporter:	David Klempner <klempner>
Component:	[OLD] Games	Assignee:	Gentoo Games <games>
Status:	RESOLVED OBSOLETE
Severity:	normal	Keywords:	PMASKED
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	NX fix

Description David Klempner 2009-01-16 08:14:57 UTC

PCSX segfaults if the heap is nonexecutable.

It dynamically recompiles into a malloc()'ed buffer, and then executes that code.

As such, it segfaults on the very first instruction it tries to execute.

Reproducible: Always

Steps to Reproduce:
1. Run pcsx on an x86 kernel with PAE (or any amd64?)
2. Try to execute a PSX game
3. Segfault

Comment 1 David Klempner 2009-01-16 08:34:19 UTC

Created attachment 178671 [details, diff]
NX fix

Patch to allocate recompile buffer with mmap, which works for me.