Hi Tom,

On 9 June 2017 at 17:25, Mike Stump <mikest...@comcast.net> wrote:
> On Jun 9, 2017, at 7:24 AM, Tom de Vries <tom_devr...@mentor.com> wrote:
>> this patch adds effective target stack_size.
>
>> OK for trunk if x86_64 and nvptx testing succeeds?
>
> Ok.
>
> The only last issue in this area that I know about is that there are a few 
> more test cases that need up to 48 MB to run, the problem is that targets 
> might have substantially less memory.  Stack size is one of the ways this 
> problem can be exposed.  The failure to load case is or can be handled in 
> other ways, but the dynamic allocation case I think is relatively poorly 
> handled.  On my machine, I just punted by running on a virtual simulator that 
> I pushed memory up to 48 MB and ignored the issue.  If anyone wants to try 
> their hand at it, I'd be happy to review some patches.  For those on demand 
> virtual memory systems, of course, the problem is invisible.  I didn't have 
> any good ideas in this area.  Marking large memory test cases with size 
> information, and then just trimming based upon size was my only thought.  Not 
> exactly portable, as the exact size of any test case is of course target 
> dependent; but, if we get close enough, it can provide enough of a solution I 
> think.
>
> If people have better ideas in this area, even if you don't want to implement 
> them, it'd be nice to hear about them.

After this commit (r249090), I've noticed that badalloc1.C fails at
execution on aarch64 and arm bare-metal targets.

It is compiled with -DSTACK_SIZE=16384, maybe that's too small?

Thanks,

Christophe

Reply via email to