Messages in this thread | | | Subject | Re: [RFC][PATCH] fix target_cpus() for summit subarch | From | john stultz <> | Date | Mon, 30 Aug 2004 11:03:07 -0700 |
| |
On Fri, 2004-08-27 at 23:17, Martin J. Bligh wrote: > --john stultz <johnstul@us.ibm.com> wrote (on Friday, August 27, 2004 17:24:48 -0700): > > > I've been hunting down a bug affecting IBM x440/x445 systems where the > > floppy driver would get spurious interrupts and would not initialize > > properly. > > > > After digging James Cleverdon pointed out that target_cpus() is routing > > the interrupts to the clustered apic broadcast mask. This was causing > > multiple interrupts to show up, breaking the floppy init code. > > > > This one-liner fix simply routes interrupts to the first cpu to resolve > > this issue. > > I'd say that means your hardware is horribly broken ... but I guess this > might be a suitable workaround given we're going to reprogram them all > later.
Ok, then my patch probably isn't correct. Let me grab James and we'll sit down and work this out later today.
thanks -john
- 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/
| |