[igt-dev] [PATCH i-g-t] i915/gem_exec_parallel: Add skip_on_simulation to whole binary

[Katarzyna Dec]

On Fri, Feb 08, 2019 at 01:27:51PM +0000, Chris Wilson wrote:
> Quoting Katarzyna Dec (2019-02-08 13:23:59)
> > On Fri, Feb 08, 2019 at 01:14:26PM +0000, Chris Wilson wrote:
> > > Quoting Katarzyna Dec (2019-02-08 13:10:37)
> > > > On simulation environment these tests were failing. During debug
> > > > we decided that whole binary should be skipped, because there is
> > > > no additional coverage in simulation.
> > > 
> > > How did they fail? There are some paths here that are rarely touched
> > > elsewhere.
> > > -Chris
> > I like you challenges Chris :)
> > 
> > gem_exec_parallel@*context* were failing with error:
> > 
> > (gem_exec_parallel:1245) ioctl_wrappers-CRITICAL: Test assertion failure
> > function gem_execbuf, file ../lib/ioctl_wrappers.c:605:
> > (gem_exec_parallel:1245) ioctl_wrappers-CRITICAL: Failed assertion:
> > __gem_execbuf(fd, execbuf) == 0
> > (gem_exec_parallel:1245) ioctl_wrappers-CRITICAL: error: -28 != 0
> 
> Should not happen.
But happends and is reproducible on some CI runs.
>  
> > and @*fds* with:
> > 
> > (gem_exec_parallel:1315) igt_debugfs-CRITICAL: Last errno: 24, Too many open
> > files
> 
> That is boring, but more indicative of system setup failure. We should
> be configuring the system to allow ourselves, as root, to use as many fd
> as can fit in memory.
> 
> I'd recommend a pass through the basic stress test at least. It won't
> take a lot to exercise some unusual conditions.
> -Chris

What if we skip all *context* and all *fds* and leave rest as it is?
Will it be resonable in this shape?

Kasia :)