Messages in this thread | | | Date | Fri, 07 May 2010 15:35:38 -0700 | From | Arjan van de Ven <> | Subject | Re: RFD: Should we remove the HLT check? (was Re: [PATCH 1/8] x86: avoid check hlt if no timer interrupts) |
| |
On 5/7/2010 15:24, Alan Cox wrote: >> I'd be cool skipping it for family 5 or newer. I'm just wondering if we >> should kill it completely -- IIRC it was only a handful of 386/486 >> systems which had problems, usually due to marginal power supplies which >> couldn't handle the noise of a variable load (DOS not having any power >> management would run at a reliable 100% load) -- that's not exactly the >> type of systems which would have survived to modern day. > > Also SMM and hardware bugs on some platforms - Cyrix MediaGX 5510 for > example where a hlt at the wrong moment during ATA transfers hung the box > until power cycle. But all old old stuff.
but a boot time "does hlt work at all" check won't catch that.
| |