Re: qemu test with start_vm fails

["Maxim Yu. Osipov" <mosipov@ilbers.de>]

On 11/29/18 3:20 PM, Andreas Reichel wrote:
> On Wed, Nov 28, 2018 at 08:34:58PM +0300, Maxim Yu. Osipov wrote:
>> Hi Andreas,
>>
>> I would suggest to double check your statements before blaming that
>> something is not working
>>
> Hi,
> 
> well unfortunately I was correct. There is an error in Isar:
> the offline cache is included in the root file system :)

In your initial report you stated:

> -------- Forwarded Message --------
> Subject: qemu test with start_vm fails
> Date: Wed, 28 Nov 2018 17:25:24 +0100
> From: Andreas Reichel <andreas.reichel.ext@siemens.com>
> To: isar-users@googlegroups.com
> 
> Hi,
> 
> I built
> 
> multiconfig:qemuarm-stretch:isar-image-base
> 
> and wanted to test the image with
> 
> start_vm -a arm -d stretch
> 
> which failed inside my docker container so I extracted the qemu command
> generated and started qemu outside of docker.
> 
> This failed to work because the generated ext4 image had no
> space left and the kernel root parameter is set to "rw" by the
> output of start_vm script, causing systemd to hang.

You said that you were unable to launch 'start_vm -a arm -d stretch'
without providing details of environment/feature enabled/commit id used.

At least now I know that you use offline cache (BTW, offline cache 
feature is broken in current next, so I may only guess on which commit 
id you base on).

I hope that it should be clear how to correctly report the problem next 
time.

> There is a /base-apt in the resulting .ext4.img.

I'll look on that and fix it if necessary (previously we had images with 
not cleaned up /var/cache/apt).

> This way I got a rootfs of 720 MB with no free space, despite the
> 64M extra space. (file system overhead).
> 
> In your CI you obviously do not use the offline cache feature,
> that's why in CI this did not happen.

I've just checked-in into 'next' the patch debe3392 "scripts/ci: enable 
use of cached base repository for fast build" and it passes OK in 'next' 
with the reverted patch d40a9ac0.

The easy way to run it on your debian PC just call

* isar$./scripts/ci_build.sh -q -f
* isar$ source isar-init-build-env
* isar/build$vm_smoke_test -q -f


Maxim.


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