Re: Double Interrupt with HT

From: Miroslaw KLABA
Date: Mon Dec 15 2003 - 12:34:08 EST


> # echo "1" >/proc/irq/0/smp_affinity
>
> which should stop the second 'cpu' from
> handling the timer interrupts ...
>
> but this doesn't explain the 2x clock,
> which probably is some bug ...
>
> HTH,
> Herbert
Thanks but already done. It must be a bug in 2.4.23, because with 2.6.0-test11,
I don't have any problem...

How may one find this bug?

Thanks.
Miro

# lspci -v
00:00.0 Host bridge: VIA Technologies, Inc. P4M266 Host Bridge
Subsystem: VIA Technologies, Inc. P4M266 Host Bridge
Flags: bus master, 66Mhz, medium devsel, latency 8
Memory at e8000000 (32-bit, prefetchable) [size=64M]
Capabilities: [a0] AGP version 2.0
Capabilities: [c0] Power Management version 2

00:01.0 PCI bridge: VIA Technologies, Inc. VT8633 [Apollo Pro266 AGP] (prog-if 00 [Normal decode])
Flags: bus master, 66Mhz, medium devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
Memory behind bridge: ec000000-edffffff
Prefetchable memory behind bridge: e0000000-e7ffffff
Capabilities: [80] Power Management version 2

00:10.0 USB Controller: VIA Technologies, Inc. USB (rev 80) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. USB
Flags: bus master, medium devsel, latency 32, IRQ 21
I/O ports at d000 [size=32]
Capabilities: [80] Power Management version 2

00:10.1 USB Controller: VIA Technologies, Inc. USB (rev 80) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. USB
Flags: bus master, medium devsel, latency 32, IRQ 21
I/O ports at d400 [size=32]
Capabilities: [80] Power Management version 2

00:10.2 USB Controller: VIA Technologies, Inc. USB (rev 80) (prog-if 00 [UHCI])
Subsystem: VIA Technologies, Inc. USB
Flags: bus master, medium devsel, latency 32, IRQ 21
I/O ports at d800 [size=32]
Capabilities: [80] Power Management version 2

00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82) (prog-if 20 [EHCI])
Subsystem: VIA Technologies, Inc. USB 2.0
Flags: bus master, medium devsel, latency 32, IRQ 19
Memory at ee000000 (32-bit, non-prefetchable) [size=256]
Capabilities: [80] Power Management version 2

00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
Subsystem: VIA Technologies, Inc. VT8235 ISA Bridge
Flags: bus master, stepping, medium devsel, latency 0
Capabilities: [c0] Power Management version 2

00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP])
Subsystem: VIA Technologies, Inc. VT82C586/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE
Flags: bus master, medium devsel, latency 32, IRQ 11
I/O ports at dc00 [size=16]
Capabilities: [c0] Power Management version 2

00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235 AC97 Audio Controller (rev 50)
Subsystem: VIA Technologies, Inc.: Unknown device 4161
Flags: medium devsel, IRQ 22
I/O ports at e000 [size=256]
Capabilities: [c0] Power Management version 2

00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74)
Subsystem: VIA Technologies, Inc. VT6102 [Rhine II] Embeded Ethernet Controller on VT8235
Flags: bus master, medium devsel, latency 32, IRQ 23
I/O ports at e800 [size=256]
Memory at ee001000 (32-bit, non-prefetchable) [size=256]
Capabilities: [40] Power Management version 2

01:00.0 VGA compatible controller: S3 Inc. VT8375 [ProSavage8 KM266/KL266] (prog-if 00 [VGA])
Subsystem: S3 Inc. VT8375 [ProSavage8 KM266/KL266]
Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 16
Memory at ed000000 (32-bit, non-prefetchable) [size=512K]
Memory at e0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] Power Management version 2
Capabilities: [80] AGP version 2.0

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