Re: qemu test with start_vm fails

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

Hi Andreas,

I would suggest to double check your statements before blaming that 
something is not working

1. CI is performed on regular basis on isar-build.org.

The easy way to run it on your debian PC just call
* isar$./scripts/ci_build.sh -q
* isar/build$ source isar-init-build-env
* isar/build$vm_smoke_test -q

You should see something like that:

vm_smoke_test -f -q
-------------------------------------------------
Testing Isar [stretch] image for [arm] machine:
Check login prompt: PASSED
Check example module: PASSED
-------------------------------------------------
Testing Isar [stretch] image for [amd64]

...

Recently the "faster" (to build/try reduced set of configurations) 
version of CI was introduced - just pass additional key '-f' to 
ci_build.sh and vm_smoke_test.

Moreover you are encouraged to run these scripts on your own before 
submitting your patches - this will save a lot of time to maintainer.

Instead launching on your own PC - active developers are granted account 
on Jenkins on isar-build.org - CI is automated by Jenkins. Just ask 
Baurzhan for an account.

2. CI is not launched in docker.

3. On my stretch laptop I've just checked out the latest next, built
multiconfig:qemuarm-stretch:isar-image-base and launched start_vm:

isar/build$ start_vm -a arm -d stretch
+ qemu-system-arm -m 1024M -M virt -cpu cortex-a15 -nographic -kernel 
/home/myo/work/isar/src/isar/build/tmp/deploy/images/qemuarm/isar-image-base-debian-stretch-qemuarm.vmlinuz-4.9.0-8-armmp 
-initrd 
/home/myo/work/isar/src/isar/build/tmp/deploy/images/qemuarm/isar-image-base-debian-stretch-qemuarm.initrd.img-4.9.0-8-armmp 
-append console=ttyAMA0 root=/dev/vda rw -drive 
file=/home/myo/work/isar/src/isar/build/tmp/deploy/images/qemuarm/isar-image-base-debian-stretch-qemuarm.ext4.img,if=none,format=raw,id=hd0 
-device virtio-blk-device,drive=hd0
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.9.0-8-armmp 
(debian-kernel@lists.debian.org) (gcc version 6.3.0 20170516 (Debian 
6.3.0-18+deb9u1) ) #1 SMP Debian 4.9.130-2 (2018-10-27)

[snip]

After a while (wait for some 3-4 min) I've got

Debian GNU/Linux 9 isar ttyAMA0

isar login:


When reporting a problem please provide more details about your 
environment (host/target/distro/Isar tree commit id etc).

Maxim.

On 11/28/18 7:25 PM, Andreas Reichel wrote:
> 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.
> 
> I thought, there was a CI that tested the builds with qemu on a
> regular basis?
> 
> I could start the image with "root=/dev/vda ro" parameter.
> 
> If such basic things are not tested regularly this can cost developers a
> lot of time...
> 
> kind regards
> Andreas
> 


-- 
Maxim Osipov
ilbers GmbH
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