Swapfile on ZFS & Deadlock
mashtizadeh at gmail.com
Fri Jun 15 15:14:10 UTC 2007
I've had a similar thing when I'm using a lot of swap on ZFS then sometimes
the strain on memory resources brings my system to a crawl I can't get out
of :(. But it only happends on systems with less than 1 GB of memory. It's
not actually crashed
علی مشتی زاده
On 6/15/07, Claus Guttesen <kometen at gmail.com> wrote:
> > Whilst running out of memory compiling Xorg (scanPCI is a killer) I
> > discovered a quick way to deadlock the system:
> > dd if=/dev/zero of=somefileonzfs bs=something count=something
> > mdconfig -a -f something
> > swapon /dev/md0
> > Then do something that needs swap.. instant deadlock. The system is
> > still responsive but all disk access become hung.
> > Known issue? If so is there a way we can warn users/prevent users from
> > doing it?
> How much swap have you allocated?
> When lenity and cruelty play for a kingdom,
> the gentlest gamester is the soonest winner.
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