YAMAMOTO Takashi wrote:
> hi,
>
> i tried to reproduce the large swap cache issue, but no luck.
> can you provide a little more detailed instruction?
>
This issue also happens on generic 2.6.25-rc3-mm1
(with limitting only memory), so I think this issue is not
related to your patch.
I'm investigating this issue too.
Below is my environment and how to reproduce.
- System
full virtualized xen guest based on RHEL5.1(x86_64).
CPU: 2
memory: 2GB
swap: 1GB
A config of the running kernel(2.6.25-rc3-mm1 with your patch)
is attached.
- how to reproduce
- change swappines to 100
echo 100 >/proc/sys/vm/swappiness
- mount cgroup fs
# mount -t cgroup -o memory,swap none /cgroup
- make cgroup for test
# mkdir /cgroup/02
# echo -n 64M >/cgroup/02/memory.limit_in_bytes
# echo -n `expr 128 \* 1024 \* 1024` >/cgroup/02/swap.limit_in_bytes
- run test
# echo $$ >/cgropu/02/tasks
# while true; do make clean; make -j2; done
In other terminals, I run some monitoring processes, top,
"tail -f /var/log/messages", and displaying *.usage_in_bytes
every seconds.
Thanks,
Daisuke Nishimura.
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