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memtester (https://pyropus.ca./software/memtester/) hack for disabling bad RAM until next reboot
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--- memtester-orig/memtester-4.3.0/tests.c 2012-06-09 23:45:22.000000000 +0200 | |
+++ memtester-4.3.0/tests.c 2018-06-24 18:08:03.194020598 +0200 | |
@@ -11,14 +11,17 @@ | |
* This file contains the functions for the actual tests, called from the | |
* main routine in memtester.c. See other comments in that file. | |
* | |
*/ | |
+#define _GNU_SOURCE | |
#include <sys/types.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <limits.h> | |
+#include <sys/mman.h> | |
+#define MADV_SOFT_OFFLINE 101 | |
#include "types.h" | |
#include "sizes.h" | |
#include "memtester.h" | |
@@ -46,10 +49,14 @@ | |
(ul) *p1, (ul) *p2, physaddr); | |
} else { | |
fprintf(stderr, | |
"FAILURE: 0x%08lx != 0x%08lx at offset 0x%08lx.\n", | |
(ul) *p1, (ul) *p2, (ul) (i * sizeof(ul))); | |
+ void *page1 = (void*)(((unsigned long)p1) & ~0xfffUL); | |
+ void *page2 = (void*)(((unsigned long)p2) & ~0xfffUL); | |
+ if (madvise(page1, 0x1000, MADV_SOFT_OFFLINE)) perror("madvise1"); | |
+ if (madvise(page2, 0x1000, MADV_SOFT_OFFLINE)) perror("madvise1"); | |
} | |
/* printf("Skipping to next test..."); */ | |
r = -1; | |
} | |
} |
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