Re: [PATCH i-g-t v2 2/4] gem_create: Test huge object creation

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On Tue, Apr 18, 2017 at 11:29:34AM +0100, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> 
> Verify that we reject attempts to create object larger than
> INT_MAX * PAGE_SIZE since i915 currently cannot support that.
> 
> Also removed the skip on simulation since I don't know why
> would that be needed here.
> 
> v2: Removed basic tag and adjusted commit msg.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
>  tests/gem_create.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/tests/gem_create.c b/tests/gem_create.c
> index de7b82094545..844ae8ce86cb 100644
> --- a/tests/gem_create.c
> +++ b/tests/gem_create.c
> @@ -44,6 +44,7 @@
>  #include <sys/stat.h>
>  #include <sys/time.h>
>  #include <getopt.h>
> +#include <limits.h>
>  
>  #include <drm.h>
>  
> @@ -95,10 +96,13 @@ static void invalid_flag_test(int fd)
>  
>  static void invalid_size_test(int fd)
>  {
> -	int handle;
> +	uint32_t handle;
>  
>  	handle = __gem_create(fd, 0);
>  	igt_assert(!handle);
> +
> +	handle = __gem_create(fd, INT_MAX * 4096UL + 1);
> +	igt_assert(!handle);

I'm still not going to agree this is the correct behaviour. That it no
longer triggers the warn will be sufficient for you and Daniel without
enshrining a known bug.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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