Date: Fri, 5 Feb 2016 21:55:15 +0000 From: Scott Otis <scott.otis@tandemcal.com> To: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org> Subject: 10.2 Release seems to be crashing on Azure with "Standard DS" VM sizes Message-ID: <DE61DDC3EE1DBD4DB1CE68DAB471A283015FF04419@evt01fevwexa001>
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Been trying to get a FreeBSD VM server running on Azure on a "Standard DS" = size VM (so I have access to SSD storage for PostgreSQL). The "Standard DS= " series of VMs also have faster/newer CPUs than the original "Standard A" = series of VMs. I am using the image of FreeBSD from here: https://vmdepot.= msopentech.com/Vhd/Show?vhdId=3D56718&version=3D61117 . After setting up t= he VM it started rebooting every hour or so. Initially I thought this was = an Azure issue and Azure was forcibly rebooting the VM because it wasn't ge= tting health reports back. But I don't' believe this is the case anymore a= nd I think FreeBSD is crashing. (Note: I have setup a FreeBSD VM with a "S= tandard A" series VM and that seems to be running fine - though it looks li= ke it might have crashed after about 38 hours which is much better than cra= shing after 1 hour). Here is the "last" log from the last two days: [--redacted--] pts/2 [--redacted--] Fri Feb 5 21:10 still logged in [--redacted--] pts/1 [--redacted--] Fri Feb 5 21:10 still logged in [--redacted--] pts/0 [--redacted--] Fri Feb 5 20:58 - 21:10 (00:12) boot time Fri Feb 5 20:53 [--redacted--] pts/1 [--redacted--] Fri Feb 5 04:59 - crash (15:54) [--redacted--] pts/0 [--redacted--] Fri Feb 5 04:59 - 04:59 (00:00) boot time Fri Feb 5 04:41 boot time Fri Feb 5 02:16 [--redacted--] pts/1 [--redacted--] Fri Feb 5 00:36 - crash (01:40) [--redacted--] pts/0 [--redacted--] Fri Feb 5 00:36 - 00:36 (00:00) boot time Fri Feb 5 00:29 shutdown time Thu Feb 4 09:33 boot time Thu Feb 4 08:47 [--redacted--] pts/0 [--redacted--] Thu Feb 4 07:25 - crash (01:21) boot time Thu Feb 4 07:00 boot time Thu Feb 4 05:03 boot time Thu Feb 4 02:45 [--redacted--] pts/0 [--redacted--] Thu Feb 4 01:08 - crash (01:36) boot time Thu Feb 4 00:58 There are boot times without previous shutdown times - and there is that "c= rash" text (which is why I'm thinking it is a crash). It looks by default the OS is setup to NOT save crash dumps sudo dumpon -v -l kernel dumps on /dev/null If that is the case - do I add this to /etc/rc.conf? dumpdev=3D"AUTO" dumpdir=3D"/var/crash" Is there anything I need to adjust there? Does that only take affect after a reboot? Do I need to set anything with dumpon(8)? Here is the info on the swapfile: sudo swapinfo -h Device 512-blocks Used Avail Capacity /dev/gpt/swapfs 2097152 0B 1.0G 0% Is that enough space for a kernel crash dump? Thanks for all your help with this. Regards, Scott Otis CTO & Co-Founder Tandem www.tandemcal.com<http://www.tandemcal.com/>;
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