Colin Bayer scribed:
| I have a Pentium III 933/133 (Coppermine, stepping 6) in an
Intel-manufactured
| i810 motherboard (hey, I
What mobo (model/name) is it?
Can you give us the output from "lspci -vv"?
| know it's a lame chipset, but it was on sale). On boot, the kernel
(version
| 2.4.6-pre8) identifies and maps the
| IO-APIC onboard, but does not assign any IRQs to it.
|
| The relevant boot log snippet follows.
|
| [root@fortytwo i386]# cat /var/log/dmesg
| ...
| ...
| mapped APIC to ffffe000 (0121c000)
This shows that Linux mapped the APIC (part of the processor).
It says nothing about mapping any IO APICs (unless you deleted
that part :).
So, how does one know if a (UP) system has an IO APIC and that
Linux can be configured to use the UP IO APIC code?...
(That's a serious question: does an IO APIC show up in lspci output?)
And why do you think that this system has an IO APIC?
Is it documented to have one?
[just digging for clues]
| Kernel command line: auto BOOT_IMAGE=linux-test ro root=307
| BOOT_FILE=/boot/vmlinuz-2.4.6-pre8
| devfs=mount pirq=9,4
| PIRQ redirection, working around broken MP-BIOS.
| ... PIRQ0 -> IRQ 9
| ... PIRQ1 -> IRQ 4
| ...
| ...
|
| And /proc/interrupts:
| [root@fortytwo i386]# cat /proc/interrupts
| CPU0
| 0: 79409 XT-PIC timer
| 1: 5911 XT-PIC keyboard
| 2: 0 XT-PIC cascade
| 4: 990 XT-PIC es1371
| 8: 1 XT-PIC rtc
| 9: 26402 XT-PIC usb-uhci, serial
| 11: 16473 XT-PIC i810@PCI:0:1:0
| 14: 5152 XT-PIC ide0
| 15: 47 XT-PIC ide1
| NMI: 0
| ERR: 0
| MIS: 0
| [root@fortytwo i386]#
|
| This problem also occurs when booting without the pirq switch. I've
configured
| everything the way it's
| mentioned in Documentation/i386/IO-APIC.txt, but it doesn't help.
Anyway, thx in
| advance for the help.
~Randy
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
