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SubjectRe: Joe User DOS kills Linux-2.6.10
On Wed, 2 Feb 2005, linux-os wrote:

> When I compile and run the following program:

> ./xxx `yes`

It looks like the program itself doesn't matter, since it's
bash that's eating up memory like crazy, until the point where
it is OOM killed.

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
32191 riel 18 0 436m 126m 312 R 45.9 86.9 0:13.37 bash
32222 riel 15 0 3276 148 124 S 39.0 0.1 0:09.79 yes

> Additional sense: Peripheral device write fault
> end_request: I/O error, dev sdb, sector 34605780
> SCSI error : <0 0 1 0> return code = 0x8000002
> Info fld=0x2100101, Deferred sdb: sense key Medium Error

Looks like your SCSI disk has some problems, you may want
to try running 'badblocks' on the swap partition to verify
that. The VM doesn't appear to have a problem with your
test program, in my quick runs here.

ObLKML: I was running the test inside Xen, and that seemed
to hold up fine too ;)

--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan
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