Re: Severe fs corruption with 2.2.13

Alex Buell (alex.buell@tahallah.demon.co.uk)
Fri, 19 Nov 1999 23:36:39 +0000 (GMT)


On Tue, 16 Nov 1999, John Hayward-Warburton (Programming account) wrote:

> Last time I had this, it was a dodgy IDE cable connection. Reseating
> the cables caused the problem to go away (around a year and a half
> ago). And, yes, if it wasn't for Ted's programs (and having the source
> code to fix a very obscure problem in the superblocks) a small British
> TV company would have lost an awful lot of its graphics. Thankfully, I
> wasn't responsible for the (lack of) backups at the time.

I just replaced my memory chips. They had tested them before sending them
out and said that they'd checked out perfect, but running a quick test on
some unused pages shows up errors:

Successfully allocated 20MB.
Proceeding to lock pages...success. Starting tests...

Run 1:
Test 1: Random value: Setting...Testing...Passed.
Test 2: XOR comparison: Setting...Testing...Passed.
Test 3: SUB comparison: Setting...Testing...Passed.
Test 4: MUL comparison: Setting...Testing...
FAILURE: 0xe5cbe338 != 0xe5cbe378 at offset 0x00273437.
Skipping to next test...
Test 5: DIV comparison: Setting...Testing...Passed.
Test 6: OR comparison: Setting...Testing...Passed.
Test 7: AND comparison: Setting...Testing...Passed.
Test 8: Sequential Increment: Setting...Testing...Passed.
Test 9: Block Sequential: Testing... 71
FAILURE: 0x47474747 != 0x47474707 at offset 0x00246437.
Skipping to next test...
Passed.
Test 10: Solid Ones: Setting...Testing...
FAILURE: 0xfffffbff != 0xffffffff at offset 0x00219fde.
Skipping to next test...
Test 11: Solid Zeroes: Setting...Testing...Passed.
Test 12: Checkerboard1: Setting...Testing...Passed.
Test 13: Checkerboard2: Setting...Testing...Passed.
Test 14: Walking Ones: Testing...Passed.
Test 15: Walking Zeroes: Testing... 1
FAILURE: 0xfffffffd != 0xffffffbd at offset 0x001fe437.
Skipping to next test...
Passed.
Run 1 completed in 114 seconds (2 tests showed errors).
Run 2:

Now I'm fucking pissed off. Linux seems to boot just fine so I'm
suspecting another problem somewhere. Any ideas? I've checked the IDE
cables and they seem fine.

Cheers,
Alex

-- 

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