[igt-dev] [PATCH i-g-t] tests/kms_chamelium: add test descriptions

[Ser, Simon]

On Wed, 2019-09-11 at 09:45 +0300, Martin Peres wrote:
> On 10/09/2019 15:27, Ser, Simon wrote:
> > On Fri, 2019-09-06 at 17:23 +0300, Martin Peres wrote:
> > > On 05/09/2019 16:36, Simon Ser wrote:
> > > > +static const char test_hpd_storm_detect_desc[] =
> > > > +	"Trigger a series of hotplugs in a very small timeframe to
> > > > simulate a"
> > > > +	"bad cable, check the kernel falls back to polling";
> > > 
> > > "falls back to polling to avoid an irq storm"
> > 
> > irq → hotplug
> 
> I really meant IRQ storm. That was the bug we got (a machine was slow as
> heck because the connector was lose and the HW was sending thousands of
> hotplug IRQs per second).
> 
> If you want to say hotplug IRQ storm, that can work too :)

Userspace doesn't see IRQs. The IRQ storm won't be avoided, it will
really happen. What we want to avoid though is a storm of hotplug
uevents. Hence I still think "to avoid a hotplug uevent storm" is a
better wording :)

> Martin