Bug#695182: Write couple of 1GB files for OOM crash
I am slowly coming around to the idea of splitting my patch up into many
parts, each addressing just one little issue, so there would be a couple
of [PATCH]-es and some [RFC]-s, each profusely explained. Unfortunately
did not yet have time to work on this; but want to do, hopefully soon.
However... we now did another test on the server, and it ran into OOM.
We were load-testing. We intend to use the server for student logins,
via XDMCP from any one of 109 X-terminals (similar to LTSP); we logged
in on all our terminals, and on each ran a firefox and an rstudio. The
server ran into OOM, having plenty of free memory but having exhausted
lowmem, after 80 logins. Then rebooted the server with mem=32G on the
kernel, and there was no OOM after logging on all our "fake" students.
So, there is a bug still. I will try to make up some easily reproducible
test, and if can provoke OOM then look again into kernel code.
Cheers, Paul
Paul Szabo psz@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of Sydney Australia
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