Swapping on ZFS - stability issue
peter.schuller at infidyne.com
Sun Sep 9 03:00:45 PDT 2007
> Please follow the directions in the developers handbook chapter on kernel
> debugging to obtain the relevant debugging information.
Apologies. Aside from the first instance, where the machine had sat
there for 12+ hours, I never got any panic message or anything like
that which gives an opportunity for a stacktrace, etc.
> This is a known issue also in OpenSolaris. ZFS needs to allocate memory
> to send I/O request, and when there is no memory, it can't allocate it
> thus can't swap a process out and free it.
Ok, so a known issue. Unless someone tells me otherwise I'll update
the ZFS-on-FreeBSD Wiki pages to warn about this issue (assuming it's
editable by me).
/ Peter Schuller
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