Re: [Qemu-devel] [PATCH v4 09/11] tests/vm: netbsd autoinstall, using serial console

[Alex Bennée]

Peter Maydell <address@hidden> writes:

> On Fri, 5 Jul 2019 at 11:43, Kamil Rytarowski <address@hidden> wrote:
>>
>> On 05.07.2019 12:24, Alex Bennée wrote:
>> >
>> > Gerd Hoffmann <address@hidden> writes:
>> >
>> >> Instead of fetching the prebuilt image from patchew download the install
>> >> iso and prepare the image locally.  Install to disk, using the serial
>> >> console.  Create qemu user, configure ssh login.  Install packages
>> >> needed for qemu builds.
>> >
>> > I've had to drop this from my v3 PR as Peter was seeing a very
>> > slow/hanging install when running his merge tests. I've tried to
>> > reproduce and I see it stall while installing packages but nowhere near
>> > the delay Peter has seen.
>> >
>> > Any pointers on how to debug gratefully received.
>> >
>>
>> Does it use virtio? There were performance issues with virio disk device.
>
> The symptoms I see with this patch are that the VM appears to
> completely stall, rather than progressing but slowly.

which is odd given we are both testing on the same machine (hackbox2?).
I wonder if there is a environmental issue? Possibly the host file-system?

> (I do also see on the current NetBSD tests/vm setup that sometimes
> 'make check' runs pretty slowly, but in that case it does make
> progress, it just completes much slower than either the openbsd
> or freebsd VMs. 'make check' is not particularly IO intensive,
> certainly not compared to the actual compile phase, though.
> And sometimes the initial "wait for VM to boot and ssh in"
> phase just hits our 6 minute timeout.)
>
> thanks
> -- PMM


--
Alex Bennée