Re: [Linux-ia64] Big problems with 2.4.7

[Alex Williamson <awilliam@fc.hp.com>]

Martin,

   Ok, perhaps you can disregard my suspicion about the I/O port base,
looks like you're able to probe the serial ports as the correct type,
so that seems to be working.  For interrupts, especially legacy
interrupts, there's a change in 2.4.7 to use the PC/AT compatibility
flag in the ACPI APIC table.  If the system doesn't claim it supports
8259 style interrupts, we don't setup legacy IRQ 0-15.  Here's a
little patch that will revert to the previous functionality.

--- arch/ia64/kernel/acpi.c.orig        Wed Jul 25 09:14:04 2001
+++ arch/ia64/kernel/acpi.c     Wed Jul 25 09:14:22 2001
@@ -210,7 +210,7 @@
                                 * dual-8259 compatible setup.
                                 */
                                iosapic_init(iosapic->address, iosapic->irq_base,
-                                            (madt->flags & MADT_PCAT_COMPAT));
+                                            (1));
                        break;
 
                case ACPI20_ENTRY_PLATFORM_INT_SOURCE:


This is definitely a bug in Lion firmware if this is the problem, so
make sure you're running the latest version.  Thanks,

	Alex	

Martin Wilck wrote:
> 
> > Just for the record, I have the same problems, but only on Lions.  Booting
> > the SMP kernel on a BigSur works.
> 
> Good to hear (I have a Lion here).
> I was feeling pretty stupid already because nobody else
> seemed to have had problems :-)
> 
> It definitely appears that something is wrong with interrupt assignment.
> drivers get IRQ 0 and can't do anything with it ...
> 
> I have finally got a printout of some boot messages with a serial console.
> There are very few differences between a 2.4.5 and 2.4.7 boot, but those
> that appear relevant are related to failure in interrupt allocation
> (note that the serial driver also says "irq=0").
> 
> >>>> 2.4.5:
> =====> 
> ttyS00 at 0x03f8 (irq = 44) is a 16550A
> ttyS01 at 0x02f8 (irq = 45) is a 16550A
> ...
> keyboard: Timeout - AT keyboard not present?
> PIIX4: not 100% native mode: will probe irqs later
>     ide0: BM-DMA at 0x1000-0x1007, BIOS settings: hda:pio, hdb:pio
>     ide1: BM-DMA at 0x1008-0x100f, BIOS settings: hdc:DMA, hdd:pio
> hda: LS-120 SLIM4 00 UHD Floppy, ATAPI FLOPPY drive
> hdc: TOSHIBA DVD-ROM SD-C2502, ATAPI CD/DVD-ROM drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 34
> ide1 at 0x170-0x177,0x376 on irq 33
> 
> >>> 2.4.7:
> =====
> 
> ACPI: Core Subsystem version [20010615]
> ACPI: install SCI 9 handler pass
> ACPI: Subsystem enabled
> ttyS00 at 0x03f8 (irq = 0) is a 16550A
> ttyS01 at 0x02f8 (irq = 0) is a 16550A
> ...
> keyboard: Timeout - AT keyboard not present?
> PIIX4: not 100% native mode: will probe irqs later
>     ide0: BM-DMA at 0x1000-0x1007, BIOS settings: hda:pio, hdb:pio
>     ide1: BM-DMA at 0x1008-0x100f, BIOS settings: hdc:DMA, hdd:pio
> hda: IRQ probe failed (0xfffffffffffffdfe)
> hda: IRQ probe failed (0xfffffffffffffdfe)
> hda: LS-120 SLIM4 00 UHD Floppy, ATAPI FLOPPY drive
> hda: IRQ probe failed (0xfffffffffffffdfe)
> hdc: IRQ probe failed (0xfffffffffffffdfe)
> hdc: IRQ probe failed (0xfffffffffffffdfe)
> hdc: TOSHIBA DVD-ROM SD-C2502, ATAPI CD/DVD-ROM drive
> hdc: IRQ probe failed (0xfffffffffffffdfe)
> hdd: IRQ probe failed (0xfffffffffffffdfe)
> hdd: IRQ probe failed (0xfffffffffffffdfe)
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 34
> ide1 at 0x170-0x177,0x376 on irq 33
> 
> Regards,
> Martin
> 
> ---
> Martin Wilck     <Martin.Wilck@fujitsu-siemens.com>
> FSC EP PS DS1, Paderborn      Tel. +49 5251 8 15113
> 
> _______________________________________________
> Linux-IA64 mailing list
> Linux-IA64@linuxia64.org
> http://lists.linuxia64.org/lists/listinfo/linux-ia64

--
Alex Williamson                                  Linux Development Lab
awilliam@fc.hp.com                                     Hewlett Packard
970-898-9173                                          Fort Collins, CO