Date: Thu, 8 Feb 2001 16:26:02 -0800 (PST) From: John M Vinopal <banshee@abattoir.com> To: freebsd-smp@freebsd.org Subject: sharing pci irq == conflicts Message-ID: <200102090026.QAA13198@abattoir.com>
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FreeBSD 4.2-STABLE
HP Vectra XU 6/180 Dual PPro
used as a gateway
Solid in uniprocessor mode, but in SMP it sporadically generates watchdog
timeouts on both ethernet interfaces, which then persist and lock down the
interfaces. Seems to be the same problem reported on Dec 25, 2000 by
Vic E Loukatch as "FREEBSD TROUBLE" in -stable.
I suspect the problem here is that they are sharing irq 11 and somehow
getting out of sync. When I reconfigure irq (free them from isa use),
the system runs fine.
-j
>Changing APIC ID for IO APIC #0 from 16 to 2 in MP table
>APIC_IO: MP table broken: 8259->APIC entry missing!
>Programming 16 pins in IOAPIC #0
>IOAPIC #0 intpin 2 -> irq 0
>FreeBSD/SMP: Multiprocessor motherboard
>cpu0 (BSP): apic id: 1, version: 0x00040011, at 0xfee00000
>cpu1 (AP): apic id: 0, version: 0x00040011, at 0xfee00000
>io0 (APIC): apic id: 2, version: 0x000f0011, at 0xfec00000
>dc0: <Intel 21143> port 0xff00-0xff7f mem 0xfffcc000-0xfffcc3ff irq 11 at device 12.0 on pci0
>miibus0: <MII bus> on dc0
>xl0: <3Com 3c905-TX> port 0xff80-0xffbf irq 11 at device 13.0 on pci0
>miibus1: <MII bus> on xl0
===============================================================================
MPTable, version 2.0.15
-------------------------------------------------------------------------------
MP Floating Pointer Structure:
location: BIOS
physical address: 0x000f95c0
signature: '_MP_'
length: 16 bytes
version: 1.1
checksum: 0x2f
mode: Virtual Wire
-------------------------------------------------------------------------------
MP Config Table Header:
physical address: 0x000f95d0
signature: 'PCMP'
base table length: 236
version: 1.1
checksum: 0xe0
OEM ID: 'HP '
Product ID: 'XX '
OEM table pointer: 0x00000000
OEM table size: 0
entry count: 21
local APIC address: 0xfee00000
extended table length: 0
extended table checksum: 0
-------------------------------------------------------------------------------
MP Config Base Table Entries:
--
Processors: APIC ID Version State Family Model Step Flags
1 0x11 BSP, usable 6 1 0 0xfbff
0 0x11 AP, usable 6 1 0 0xfbff
--
Bus: Bus ID Type
1 ISA
0 PCI
--
I/O APICs: APIC ID Version State Address
16 0x11 usable 0xfec00000
--
I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#
INT conforms conforms 1 1 255 1
INT conforms conforms 1 0 255 2
INT conforms conforms 1 3 255 3
INT conforms conforms 1 4 255 4
INT conforms conforms 1 5 255 5
INT conforms conforms 1 6 255 6
INT conforms conforms 1 7 255 7
INT conforms conforms 1 8 255 8
INT conforms conforms 1 9 255 9
INT conforms conforms 1 10 255 10
INT conforms conforms 1 11 255 11
INT conforms conforms 1 12 255 12
INT conforms conforms 1 13 255 13
INT conforms conforms 1 14 255 14
INT conforms conforms 1 15 255 15
--
Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#
NMI conforms conforms 1 2 255 1
===============================================================================
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