Re: Making disk IO place nicely in a guest (VirtualBox)

2014-08-08 Thread Mike Tancsa
On 8/7/2014 5:27 PM, Adam Vande More wrote: The error messages shown are classic swap on ZFS errors which is inherently unstable especially under high IO loads. Hi Adam, I am still running into the guest crashing, or throwing disk errors even when the Hypervisor is not touching swap. I brou

Re: Making disk IO place nicely in a guest (VirtualBox)

2014-08-07 Thread Adam Vande More
On Thu, Aug 7, 2014 at 4:05 PM, Mike Tancsa wrote: > On 8/7/2014 4:53 PM, Adam Vande More wrote: > >> >> >> Is your swap device ZFS backed like a ZVOL or something? >> > > Hi Adam, > The hypervisor does indeed have swap on zfs. I will try > disabling swap in the guest. I am pretty sure

Re: Making disk IO place nicely in a guest (VirtualBox)

2014-08-07 Thread Mike Tancsa
On 8/7/2014 4:53 PM, Adam Vande More wrote: Is your swap device ZFS backed like a ZVOL or something? Hi Adam, The hypervisor does indeed have swap on zfs. I will try disabling swap in the guest. I am pretty sure the panic was due to the guest hitting and stalling on swap inside the VM.

Re: Making disk IO place nicely in a guest (VirtualBox)

2014-08-07 Thread Adam Vande More
On Thu, Aug 7, 2014 at 1:19 PM, Mike Tancsa wrote: > Hi, > I am running VirtualBox on RELENG_10 as the hypervisor with a > RELENG10 guest. I noticed, that when a do a lot of disk IO in the guest > where the hypervisor cannot keep up, this start to go "bad" in the guest. > > If I use the

Re: Making disk IO place nicely in a guest (VirtualBox)

2014-08-07 Thread Mike Tancsa
On 8/7/2014 2:19 PM, Mike Tancsa wrote: Hi, I am running VirtualBox on RELENG_10 as the hypervisor with a RELENG10 guest. I noticed, that when a do a lot of disk IO in the guest where the hypervisor cannot keep up, this start to go "bad" in the guest. If I use the non default AHCI driver,

Making disk IO place nicely in a guest (VirtualBox)

2014-08-07 Thread Mike Tancsa
Hi, I am running VirtualBox on RELENG_10 as the hypervisor with a RELENG10 guest. I noticed, that when a do a lot of disk IO in the guest where the hypervisor cannot keep up, this start to go "bad" in the guest. If I use the non default AHCI driver, the OS at least can kind of recover. Usi