Re: [Qemu-devel] [PATCH] iotests: Skip 211 on insufficient memory

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 2/18/19 7:06 PM, Max Reitz wrote:
> VDI keeps the whole bitmap in memory, and the maximum size (which is
> tested here) is 2 GB.  This may not be available on all machines, and it
> rarely is available when running a 32 bit build.
> 
> Fix this by making VM.run_job() return the error string if an error
> occurred, and checking whether that contains "Could not allocate bmap"
> in 211.  If so, the test is skipped.
> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> ---
>  tests/qemu-iotests/211        | 4 +++-
>  tests/qemu-iotests/iotests.py | 5 ++++-
>  2 files changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/qemu-iotests/211 b/tests/qemu-iotests/211
> index 5d285450b5..6afc894f76 100755
> --- a/tests/qemu-iotests/211
> +++ b/tests/qemu-iotests/211
> @@ -32,7 +32,9 @@ def blockdev_create(vm, options):
>  
>      if 'return' in result:
>          assert result['return'] == {}
> -        vm.run_job('job0')
> +        error = vm.run_job('job0')
> +        if error and 'Could not allocate bmap' in error:
> +            iotests.notrun('Insufficient memory')
>      iotests.log("")
>  
>  with iotests.FilePath('t.vdi') as disk_path, \
> diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
> index 387e026556..4910fb2005 100644
> --- a/tests/qemu-iotests/iotests.py
> +++ b/tests/qemu-iotests/iotests.py
> @@ -532,7 +532,9 @@ class VM(qtest.QEMUQtestMachine):
>          log(result, filters, indent=indent)
>          return result
>  
> +    # Returns None on success, and an error string on failure
>      def run_job(self, job, auto_finalize=True, auto_dismiss=False):
> +        error = None
>          while True:
>              for ev in self.get_qmp_events_filtered(wait=True):
>                  if ev['event'] == 'JOB_STATUS_CHANGE':
> @@ -541,13 +543,14 @@ class VM(qtest.QEMUQtestMachine):
>                          result = self.qmp('query-jobs')
>                          for j in result['return']:
>                              if j['id'] == job:
> +                                error = j['error']
>                                  log('Job failed: %s' % (j['error']))
>                      elif status == 'pending' and not auto_finalize:
>                          self.qmp_log('job-finalize', id=job)
>                      elif status == 'concluded' and not auto_dismiss:
>                          self.qmp_log('job-dismiss', id=job)
>                      elif status == 'null':
> -                        return
> +                        return error
>                  else:
>                      iotests.log(ev)
>  
>