Re: [r300][patch] retry when busy

[Michel <mi...@tu...>]

On Sun, 2006-05-28 at 19:57 +0200, Roland Scheidegger wrote:
> Rune Petersen wrote:
>=20
> >> (e.g.  while (ret && (errno =3D=3D EINTR || errno =3D=3D EBUSY));)
> >> And by looking at it, does it make sense that the timeout value in t=
he=20
> >> kernel depends on the kernel-of-the-day HZ value, rather than some=20
> >> hardware-dependant (probably fixed) value?
> >=20
> > Isn't the timeout value dependent on HZ?
> > 3*HZ is always 3 seconds no matter what HZ is (provided its the same=20
> > value used to compile the kernel).
> Ah right. I think I misinterpreted something. That said, 3 seconds=20
> sounds like a rather long time, why would there still be timeouts?

Because lockups do happen. I think these timeouts are one kind of common
symptoms of a lockup.


--=20
Earthling Michel D=C3=A4nzer           |          http://tungstengraphics=
.com
Libre software enthusiast         |          Debian, X and DRI developer