Re: [Qemu-devel] [PATCH v2 0/4] mirror: Fix behavior for zero byte image

[Fam Zheng]

> Am 24.06.2014 um 06:25 hat Fam Zheng geschrieben:
> > On Mon, 06/09 10:56, Fam Zheng wrote:
> > > The current behavior of mirroring zero byte image is slightly different
> > > from
> > > non-zero image: the BLOCK_JOB_READY event is skipped and job is completed
> > > immediately. This is not a big problem for human user but only makes
> > > management
> > > software harder to write. Since we are focusing on an good API instead of
> > > UI,
> > > let's make the behavior more consistent and predictable.
> > > 
> > > The first patch fixes the behavior. The following two patches add test
> > > case for
> > > the involved code path.
> > > 
> > > Thanks for Eric Blake to report this!
> > 
> > Ping. Shall we merge this before it rots?
> 
> I had it already applied, but now test case 041 fails for me, so I'm
> going to remove it from my tree again:
> 

I'm pretty sure it passed when I sent it, so it's probably due do some recent 
code changes. Rebased and sent v3. Please try again!

Thanks for the effort!

Fam

> 041 7s ...        [13:28:48] [13:29:27] [failed, exit status 1] - output
> mismatch (see 041.out.bad)
> --- 041.out     2014-06-24 13:23:13.597949977 +0200
> +++ 041.out.bad 2014-06-24 13:29:27.024871226 +0200
> @@ -1,5 +1,31 @@
> -.....................................
> +qemu-img: /home/kwolf/source/qemu/tests/qemu-iotests/scratch/target.img:
> Cluster size must be a power of two between 512 and 2048k
> +qemu-img: /home/kwolf/source/qemu/tests/qemu-iotests/scratch/target.img:
> Cluster size must be a power of two between 512 and 2048k
> +..........................F...F......
> +======================================================================
> +FAIL: test_large_cluster (__main__.TestSingleDriveZeroLength)
> +----------------------------------------------------------------------
> +Traceback (most recent call last):
> +  File "./041", line 185, in test_large_cluster
> +    self.assert_qmp(result, 'return', {})
> +  File "/home/kwolf/source/qemu/tests/qemu-iotests/iotests.py", line 232, in
> assert_qmp
> +    result = self.dictpath(d, path)
> +  File "/home/kwolf/source/qemu/tests/qemu-iotests/iotests.py", line 211, in
> dictpath
> +    self.fail('failed path traversal for "%s" in "%s"' % (path, str(d)))
> +AssertionError: failed path traversal for "return" in "{u'error': {u'class':
> u'GenericError', u'desc': u"Could not open
> '/home/kwolf/source/qemu/tests/qemu-iotests/scratch/target.img': No such
> file or directory"}}"
> +
> +======================================================================
> +FAIL: test_small_buffer2 (__main__.TestSingleDriveZeroLength)
> +----------------------------------------------------------------------
> +Traceback (most recent call last):
> +  File "./041", line 169, in test_small_buffer2
> +    self.assert_qmp(result, 'return', {})
> +  File "/home/kwolf/source/qemu/tests/qemu-iotests/iotests.py", line 232, in
> assert_qmp
> +    result = self.dictpath(d, path)
> +  File "/home/kwolf/source/qemu/tests/qemu-iotests/iotests.py", line 211, in
> dictpath
> +    self.fail('failed path traversal for "%s" in "%s"' % (path, str(d)))
> +AssertionError: failed path traversal for "return" in "{u'error': {u'class':
> u'GenericError', u'desc': u"Could not open
> '/home/kwolf/source/qemu/tests/qemu-iotests/scratch/target.img': No such
> file or directory"}}"
> +
>  ----------------------------------------------------------------------
>  Ran 37 tests
>  
> -OK
> +FAILED (failures=2)
> Failures: 041
> 
>