Date: Sun, 16 Aug 2015 15:02:30 +0200 From: "Ronald Klop" <ronald-lists@klop.ws> To: freebsd-stable@freebsd.org Subject: Re: Swap Questions Message-ID: <op.x3go6ge9kndu52@53555a16.cm-6-6b.dynamic.ziggo.nl> In-Reply-To: <op.x3goonlakndu52@53555a16.cm-6-6b.dynamic.ziggo.nl> References: <55CDE9EE.5090603@tundraware.com> <alpine.BSF.2.20.1508141135030.80352@wonkity.com> <55CF8E0B.7050608@tundraware.com> <op.x3goonlakndu52@53555a16.cm-6-6b.dynamic.ziggo.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sun, 16 Aug 2015 14:51:49 +0200, Ronald Klop <ronald-lists@klop.ws> wrote: > On Sat, 15 Aug 2015 21:07:55 +0200, Tim Daneliuk <tundra@tundraware.com> > wrote: > >> On 08/14/2015 12:39 PM, Warren Block wrote: >>> On Fri, 14 Aug 2015, Tim Daneliuk wrote: >>> >>>> I just built a 10.2 machine on a cloud-based VPS (Digital Ocean) that >>>> has >>>> 512M of memory and 1G of swap partition. I am seeing a ton of errors >>>> like >>>> this: >>>> >>>> Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(10): failed >>>> Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(14): failed >>>> Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(11): failed >>>> Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(6): failed >>>> Aug 14 00:01:22 myhost kernel: swap_pager_getswapspace(7): failed >>>> Aug 14 00:01:22 myhost last message repeated 2 times >>>> >>>> >>>> So, I added this to fstab (after creating /usr/swap0): >>>> >>>> md99 none swap sw,file=/usr/swap0 0 0 >>>> >>>> And then did this: >>>> >>>> swapon -aq >>>> >>>> >>>> But, when I do a swapinfo, all I can see is the "disk" swap partition >>>> that comes standard with the VPS: >>>> >>>> >>>> Device 1K-blocks Used Avail Capacity >>>> /dev/gpt/swapfs 1048576 456572 592004 44% >>> >>> Add the -L (late) option to swapon. How this works might differ >>> between 10-Release, 10-Stable, and 11. >>> >>> Incidentally, md99 does not have to be literal, it's just meant to get >>> the md device number up out of the way of common interactive usage of >>> mdconfig. >> >> >> So -L does fix the problem - sort of. The machine picks up the file as >> additional swap on boot just fine. HWOEVER, when I try to reboot or >> shut >> down the host, I get a panic telling me some noise about not being able >> to shutdown swap for some reason. > > It helps if you provide the exact text of the panic. People regularly > don't get to see these inside there crystal ball. ;-) You call it noise. > Others might get an helpful hint from it to help you. Maybe you already knew, but adding dumpdev="AUTO" in /etc/rc.conf can provide a kernel dump on panic which can be analyzed after reboot. Ronald. > Regards, > Ronald. > > >> So ... I decided to just add a second disk partition for swap and - >> for some reason - it works fine interactively, but upon reboot, >> the newly created swap partition no longer exists and gpart shows >> the space as free again. I tried a gpart commit, but get >> "operation not permitted". So now I am trying to figure out >> how to make gpart changes stick. This may be an artifact of >> the way Digital Ocean droplets are set up .... >> >> Grrrrrrrr > _______________________________________________ > freebsd-stable@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?op.x3go6ge9kndu52>