Messages in this thread |  | | Date | Fri, 12 Apr 2002 15:39:32 +0200 | From | Martin Dalecki <> | Subject | Re: More than 10 IDE interfaces |
| |
Bill Davidsen wrote: > On Thu, 11 Apr 2002, Martin Dalecki wrote: > > >>Baldur Norddahl wrote: >> >>>Hi, >>> >>>I have a machine with the following configuration: >>> >>>2 on board IDE interfaces (AMD chipset) >>>2 Promise Technology UltraDMA100 controllers with each 2 IDE interfaces. >>>4 Promise Technology UltraDMA133 controllers with each 2 IDE interfaces. >>> >>>This adds up to 14 IDE interfaces. And I just discovered that the kernel >>>only supports 10 IDE interfaces :-( >>> >>>So I tried to hack the kernel, and I was partially successfull. I changed >>>MAX_HWIF from 10 to 14. I made up some major numbers for the extra >> >>In your case if should be changed to 15 there is an off by one error here in the >>interpretation of this constant. > > > ??? If the current value is 10, and supports 10 interfaces, and I > believe that is the case, why should he need a value of 15 to get 14? > Doesn't the off by one error happen on smaller values, or what? > > I am NOT disagreeing with you, I just don't see how to code an off by > one and have it work some of the time and not others.
You can have luck due to alignment issues.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |