Dear Oh Great Raid Masters!!
We're running RAID on two linux boxes. Both use software RAID, and one also
has a hardware RAID (Mylex DAC960/DAC1100). Our kernel is 2.2.11 patched with
raid0145-19990824-2.2.11.
The box that only runs software RAID has no problems at all, whereas the box
that also has hardware RAID crashes every day with "out of memory" and we have
to reboot it. It's our department server, so it's making everyone unhappy. :(
It turns out the used memory slowly increases until all the processes are
swapped out and (we're guessing) the kernel itself runs out of memory. Could it
be that the software RAID boot patch we applied doesn't work well with the
hardware RAID code, that it introduces a memory leak in the hardware RAID code
in the kernel? Looking at the code this seems probable since the patch replaces
statically allocated arrays with dynamically allocated arrays (for some buffers)
in code that could well be common between the two implementations. The software
RAID patch probably adds the correct memory management functionality to the
software RAID code, but maybe not the hardware RAID code.
I'm not a kernel hackers, so this is the best bug report I can provide. Can you
help me; do you have any pointers?
Best regards,
Jey
"WorldSecure Server <ogilvy.com>" made the following
annotations on 10/27/99 10:09:11
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