Xen devel - Apr 2006 - [PATCH][XM-TEST] Fix for 15_create_smallmem_pos.py test - Bug 616

Hi,

Here''s the first step toward dealing with the small memory issue. The
15_create_smallmem_pos.py test was hanging because it created a 16 MB
domain and never got to the point where it could set a console limit.
The OOM messages flooded the console on creation and the select in
Console.py always had something to read. Since there was no limit and it
never timed out, the test would hang. 

This patch:

1) Adds a new cLimit arg for console limit to XmConsole, so it can be
set before the console is created. 

2) Adds a default console limit rather than setting it to None. We''d
rather hit an exception for a limit than hanging the console in the
future. Tests that need more console data can always reset the limit.

3) Changes 15_create_smallmem_pos.py''s 16 MEM to 32 MBs, the default
that should work for the tools.

4) Adds a new 16_create_smallmem_neg.py test to hit the lowmem test
failure.

Thanks,

Dan


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Hi,

I forgot to patch the XmTestDomain''s minSafeMem method, which was
returning 16. This should apply after the previous patch.

Sorry for the mistake.

Dan


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On Wed, Apr 19, 2006 at 11:35:21AM -0700, Daniel Stekloff wrote:
> 
> Hi,
> 
> Here''s the first step toward dealing with the small memory issue.
The
> 15_create_smallmem_pos.py test was hanging because it created a 16 MB
> domain and never got to the point where it could set a console limit.
> The OOM messages flooded the console on creation and the select in
> Console.py always had something to read. Since there was no limit and it
> never timed out, the test would hang. 
> 
> This patch:
> 
> 1) Adds a new cLimit arg for console limit to XmConsole, so it can be
> set before the console is created. 
> 
> 2) Adds a default console limit rather than setting it to None.
We''d
> rather hit an exception for a limit than hanging the console in the
> future. Tests that need more console data can always reset the limit.
> 
> 3) Changes 15_create_smallmem_pos.py''s 16 MEM to 32 MBs, the
default
> that should work for the tools.
> 
> 4) Adds a new 16_create_smallmem_neg.py test to hit the lowmem test
> failure.
That''s all good stuff Dan, thanks.  I''ve applied this, plus
the two
immediately following.

Ewan.

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