I can confirm the Bug. Following the discussion in http://forum.canardpc.com/threads/83443-Memtest86-V5.01-crashes-with-gcc-4.7.2-or-later reducing the optimization from -O1 to -O0 and a small patch to the file io.h make memtest86 work again.
I suggest to apply the patch as a workaround until the gcc 4.9 is fixed. The patch is attached. Jose Calhariz -- -- Compositores são lembrados pela posteridade, enquanto homens de negócios são esquecidos --Gordon Getty, bilionário que res
Description: Disable optimizations Due to a bug in gcc 4.9 the optmizations are disabled. . memtest86+ (5.01-2~cal1) UNRELEASED; urgency=low . * Non-maintainer upload. * Binary rebuild Author: Jose M Calhariz <jose.calha...@netvisao.pt> Bug: http://forum.canardpc.com/threads/83443-Memtest86-V5.01-crashes-with-gcc-4.7.2-or-later Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=753627 --- The information above should follow the Patch Tagging Guidelines, please checkout http://dep.debian.net/deps/dep3/ to learn about the format. Here are templates for supplementary fields that you might want to add: Origin: <vendor|upstream|other>, <url of original patch> Bug: <url in upstream bugtracker> Bug-Debian: https://bugs.debian.org/<bugnumber> Bug-Ubuntu: https://launchpad.net/bugs/<bugnumber> Forwarded: <no|not-needed|url proving that it has been forwarded> Reviewed-By: <name and email of someone who approved the patch> Last-Update: <YYYY-MM-DD> Index: memtest86+-5.01/Makefile =================================================================== --- memtest86+-5.01.orig/Makefile 2014-08-30 23:41:43.000000000 +0100 +++ memtest86+-5.01/Makefile 2014-08-30 23:41:43.000000000 +0100 @@ -12,7 +12,7 @@ FDISK=/dev/fd0 AS=as -32 CC=gcc -CFLAGS= -Wall -march=i486 -m32 -O1 -fomit-frame-pointer -fno-builtin \ +CFLAGS= -Wall -march=i486 -m32 -O0 -fomit-frame-pointer -fno-builtin \ -ffreestanding -fPIC $(SMP_FL) -fno-stack-protector # This reverts a change introduced with recent binutils (post Index: memtest86+-5.01/io.h =================================================================== --- memtest86+-5.01.orig/io.h 2014-08-30 23:52:55.651467144 +0100 +++ memtest86+-5.01/io.h 2014-08-30 23:53:16.675813199 +0100 @@ -31,7 +31,7 @@ */ #define __OUT1(s,x) \ -extern inline void __out##s(unsigned x value, unsigned short port) { +static inline void __out##s(unsigned x value, unsigned short port) { #define __OUT2(s,s1,s2) \ __asm__ __volatile__ ("out" #s " %" s1 "0,%" s2 "1" @@ -43,7 +43,7 @@ __OUT1(s##_p,x) __OUT2(s,s1,"w") : : "a" __OUT1(s##c_p,x) __OUT2(s,s1,"") : : "a" (value), "id" (port)); SLOW_DOWN_IO; } #define __IN1(s) \ -extern inline RETURN_TYPE __in##s(unsigned short port) { RETURN_TYPE _v; +static inline RETURN_TYPE __in##s(unsigned short port) { RETURN_TYPE _v; #define __IN2(s,s1,s2) \ __asm__ __volatile__ ("in" #s " %" s2 "1,%" s1 "0"
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