[ltp] T40, memtes86, blank blue screen, Bellet's memtest86 patch

otisg linux-thinkpad@linux-thinkpad.org
Thu, 23 Oct 2003 12:33:31 -0400


Thank you Fabrice!

Your version of memtest86 works fine on my T40, recognizes L1
and L2 caches and sees all the RAM.
(Un)fortunately, all 8 tests passed in a 10-pass test run that
lasted about 14 hours.

However, I heard of a tool called 'memtester', which also tests
memory, but it is run from within the OS (e.g. from the command
line on UNIX).  I run it this morning and found a few errors
that look like this:

  Test 12:          Checkerboard:  Setting...
FAILURE: 0x55555555 != 0x5555aa55 at offset 0x0216e241.
Skipping to next test...

  Test 13:            Bit Spread:  Setting...Passed.

  Test 14:              Bit Flip:  Setting...
FAILURE: 0x00000008 != 0x0000ff08 at offset 0x02369971.
Skipping to next test...

  Test 15:          Walking Ones:  Setting...
FAILURE: 0x00200000 != 0x00100000 at offset 0x039594a1.
Skipping to next test...

  Test 16:        Walking Zeroes:  Setting...Passed.
Run    1 completed in 1221 seconds (3 tests showed errors).
munlock'ed memory.

1 runs completed.  3 errors detected.  Total runtime:  1221
seconds.


Looks like gibberish.....but it shows errors, and that's good
enough, I guess.

Otis




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---- On Mon, 20 Oct 2003, Fabrice Bellet (fabrice@bellet.info)
wrote:

> Hello,
> 
> On Mon, Oct 20, 2003 at 01:10:48PM -0400, otisg wrote:
> > Joel was right - the provided ISO acts the same way as
> > precomp.bin provided in the Memtest86 distribution. :(
> > 
> > Would anyone happen to have a version of Memtest86 that
runs
> > properly with T40s?
> > 
> > I would really appreciate it if somebody could provide this.
 I
> > can also put this up on a publically accessible web site
for
> > others to download, if bandwidth is a concern.
> 
> gcc-2.95 seems to be required. gcc3 fails to compile it, but
even 
> when the compilation errors are fixed (RedHat Rawhide provides

> it, and fixes the compilations errors with gcc3), the
resulting 
> image doesn't run (it only prints 'Memtest-86 3.0' and
freezes,
> like you described it previously).
> 
> You can grab my version here :
> http://fr2.rpmfind.net/linux/local/memtest86/
> md5sum = 0452ae42f0bdb351c2c9029bf42d2a92
> 
> best wishes,
> -- 
> fabrice
> -- 
> The linux-thinkpad mailing list home page is at:
>
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> 
>