Date: Mon, 22 Jul 2013 09:18:44 +0200 From: Jeroen van der Ham <jeroen@dckd.nl> To: =?iso-8859-1?Q?Roger_Pau_Monn=E9?= <roger.pau@citrix.com> Cc: "freebsd-xen@freebsd.org" <freebsd-xen@freebsd.org>, "Justin T. Gibbs" <gibbs@freebsd.org>, xen-devel <xen-devel@lists.xen.org>, "freebsd-virtualization@freebsd.org" <freebsd-virtualization@freebsd.org>, "xen-users@lists.xen.org" <xen-users@lists.xen.org> Subject: Re: FreeBSD PVHVM call for testing Message-ID: <4A595D02-7B79-4C6C-9356-55FA9E45EDDC@dckd.nl> In-Reply-To: <51B9FF53.2020901@citrix.com> References: <519131D8.9010307@citrix.com> <519E54DE.5090304@citrix.com> <51B5E730.6070007@citrix.com> <51B9FF53.2020901@citrix.com>
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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 The weird thing was that one of these messages happened right after a = reboot when I rebuilt an outdated port and on the main console was = checking the swap memory: 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=3D9.1-RELEASE.=
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