Messages in this thread | | | Date | Fri, 21 May 2004 10:35:26 -0400 (EDT) | From | Bill Davidsen <> | Subject | Re: libata 2.6.5->2.6.6 regression -part II |
| |
On Fri, 21 May 2004, Bartlomiej Zolnierkiewicz wrote:
> On Friday 21 of May 2004 14:06, Bill Davidsen wrote: > > Bartlomiej Zolnierkiewicz wrote: > > > On Monday 17 of May 2004 18:34, Brad Campbell wrote: > > >>G'day all, > > >>I caught the suggestion on my last post in the archives, but because I'm > > >>not subscribed and wasn't cc'd I can't keep it threaded. > > >> > > >>I tried backing out the suggested acpi patch (No difference at all), and > > >> I managed to get apic to work but it still hangs solid in the same > > >> place. > > >> > > >>dmesg attached. > > >> > > >>I managed to figure out that the VIA ATA driver captures my sata drives > > >> on the via ports, explaining why sata_via misses them, but writing data > > >> to those drives (hde & hdg) causes dma timeouts and locks the machine. > > >> No useful debug info produced. The machine becomes non-responsive, > > >> throws a couple of dma timeouts to the console and then loses all > > >> interactivity (keyboard, serial, network) forcing a reset push. > > >> > > >>Is there any way I can prevent the VIA ATA driver capturing this device? > > >>Unfortunately my boot drive is on hda on the on-board VIA ATA interface > > >> so I need it compiled in. > > > > > > Disable the fscking PCI IDE generic driver. > > > [ You are not the first one tricked by it. ] > > > > > > AFAIR support for VIA 8237 was added to it before sata_via.c was ready. > > > [ but my memory is... ] > > > > What would happen if the generic driver was initialized last? That would > > let other more specific drivers grab devices first. The model which > > comes to mind is a route table, smallest subnet (or in this case most > > specific) being used first. Or would that open a whole other nest of > > snakes? > > I think that you are confusing PCI IDE generic driver with IDE generic driver > (the latter is already called after the former). > > Brad's problem was IDE driver (pci/generic.c) vs libata driver (sata_via.c).
I was indeed doing just that, but I guess the sense of the question is still valid, what would the implications of doing the sata_via before the pci/generic be? Would it address the original problem, and if so what would break, if anything? You noted this is not the first time the problem has been seen.
-- bill davidsen <davidsen@tmr.com> CTO, TMR Associates, Inc Doing interesting things with little computers since 1979.
- 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/
| |