Hi,
After some more testing I thought it would be good to put this into production
for my personal server. I''ve used pvhvm_v19 and built it without
debugging options and installed it on a FreeBSD 9.1 system.
I''ve run into some hiccups with 9.1 user land and a 10-CURRENT kernel,
but that''s all solvable[0].
My VPS has some very limited memory (256M), but I''ve compensated with
swap space (1G)
Now anytime I''m putting the system under stress, by building ports or
by running a git clone on the kernel repository here, I''m seeing a lot
of messages about swap_pager:
> swap_pager: indefinite wait buffer: bufobj: 0, blkno: 132545, size: 4096
The system also becomes very sluggish and sometimes unresponsive.
The weird thing was that one of these messages happened right after a reboot
when I rebuilt an outdated port and on the main console was checking the swap
memory:
> jeroen:~/ $ swapinfo
[8:13:29]
> Device 1K-blocks Used Avail Capacity
> /dev/ada0p2 524288 2484 521804 0%
> /dev/md0 1048576 2364 1046212 0%
> Total 1572864 4848 1568016 0%
> swap_pager: indefinite wait buffer: bufobj: 0, blkno: 131424, size: 4096
Is anyone else seeing something similar?
I certainly did not experience something like this on 9.0 with a XENHVM kernel.
If necessary I can rebuild a kernel with debugging support and do some more
recording of what is actually going on.
Jeroen.
[0]: I have edited bsd.port.mk to always apply the FBSD10_FIX, and for version
checking I am running "pkg version" with UNAME_r=9.1-RELEASE.
