Re: Problem with Avocado and QEMU console

[Willian Rampazzo]

Hi Phil,

I spent some time trying to debug the problem with
tests/acceptance/machine_arm_n8x0.py:N8x0Machine.test_n810. Although I
could not reproduce it locally, with or without Avocado, I was able to
reproduce it without using Avocado on GitLab CI:

https://gitlab.com/willianrampazzo/qemu/-/pipelines/331342777

>From 50 tries, 3 reproduced the problem.

So, answering your question, no, the problem happening with
tests/acceptance/machine_arm_n8x0.py:N8x0Machine.test_n810 is not
related to the problem reported in this thread or to Avocado.

Regards,

On Fri, Jul 2, 2021 at 11:48 AM Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
>
> On 6/1/21 5:40 AM, Philippe Mathieu-Daudé wrote:
> > On 5/3/21 4:46 PM, Willian Rampazzo wrote:
> >> On Mon, May 3, 2021 at 10:36 AM Philippe Mathieu-Daudé <f4bug@amsat.org> 
> >> wrote:
> >>>
> >>> On 5/3/21 3:12 PM, Willian Rampazzo wrote:
> >>>> Hi Philippe,
> >>>>
> >>>> On Mon, May 3, 2021 at 9:59 AM Philippe Mathieu-Daudé <f4bug@amsat.org> 
> >>>> wrote:
> >>>>>
> >>>>> Hi Cleber, Willian,
> >>>>>
> >>>>> Avocado marked the test_mips64el_fuloong2e as failed while
> >>>>> it succeeded:
> >>>>> https://gitlab.com/qemu-project/qemu/-/jobs/1231363571
> >>>>>
> >>>>> Apparently the first part of the console output is missing.
> >>>>> (Normal console output attached).
> >>>>>
> >>>>> Any idea what could be the cause?
> >>>>>
> >>>>
> >>>> The log shows the following:
> >>>>
> >>>> 12:00:37 ERROR| avocado.core.exceptions.TestFail: Failure message
> >>>> found in console: "Kernel panic - not syncing". Expected: "Kernel
> >>>> command line: printk.time=0 console=ttyS0"
> >>>>
> >>>> Does your comment about "console output missing" means the expected
> >>>> message was supposed to be on this missing part?
> >>>
> >>> Yes, "the first part is missing" so Avocado didn't see the expected
> >>> message pass, but the messages emitted *after* it are logged.
> >>>
> >>
> >> Okay, got it.
> >>
> >> The reason for it to fail is here:
> >> https://gitlab.com/qemu-project/qemu/-/blob/master/tests/acceptance/boot_linux_console.py#L53.
> >> The way the `wait_for_console_pattern` method is defined tells the
> >> test to fail if that `failure_message` is found.
> >>
> >> I'm still checking why the test missed the first part.
> >
> > Could this be related to the recent failures in N8x0Machine.test_n810?
> >
> > https://gitlab.com/qemu-project/qemu/-/jobs/1280746618#L128
>
> Yet another one:
>
> https://gitlab.com/qemu-project/qemu/-/jobs/1390365314#L129
>