[CentOS] usb irq problem
kira laucas
kira.laucas at gmail.com
Wed Sep 24 13:42:36 UTC 2008
On Wed, Sep 24, 2008 at 5:39 PM, nate <centos at linuxpowered.net> wrote:
>
>
>
> http://www.linuxtopia.org/online_books/linux_kernel/kernel_configuration/re18.html
>
> By default, the kernel attempts to detect and disable unhandled
> interrupt sources because they can cause problems with the
> responsiveness of the rest of the kernel if left unchecked.
> This option will disable this logic.
>
> just for curiosity, is this option removed in the latest 2.6.26.5 kernel
> ? because i experimented with compiling a custom kernel and did not ever
> receive the message . anyway i am running centos without any problem now and
> i am glad about it.
>
> Replace the hardware, get better quality stuff. Since this
> is USB, get a PCI USB expansion board see if that helps.
> About a year ago I bought a USB 2.0 PCI card for one of
> my older systems, was about $20 I think.
>
> now that you have mentioned it, i have noticed recently that my desktop
motherboard usb port has gone slower. i mean previously i used to get 28-30
MB/s transfer speed with my external usb drive. but now the max i get is
10MB/s . i have tested the external drive on my friend's laptop and to my
surprise it transferred with 25MB/s ! is it any indication of any
potentially disastrous hardware failure issue ?
for information my hardware is :
00:00.0 RAM memory: nVidia Corporation MCP67 Memory Controller (rev a2)
Subsystem: ASUSTeK Computer Inc. Unknown device 82b3
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [44] HyperTransport: Slave or Primary Interface
Capabilities: [dc] HyperTransport: MSI Mapping
00:01.0 ISA bridge: nVidia Corporation MCP67 ISA Bridge (rev a2)
Subsystem: ASUSTeK Computer Inc. Unknown device 82b3
Flags: bus master, 66MHz, fast devsel, latency 0
I/O ports at 0900 [size=256]
00:01.1 SMBus: nVidia Corporation MCP67 SMBus (rev a2)
Subsystem: ASUSTeK Computer Inc. Unknown device 82b3
Flags: 66MHz, fast devsel, IRQ 10
I/O ports at dc00 [size=64]
I/O ports at 0600 [size=64]
I/O ports at 0700 [size=64]
Capabilities: [44] Power Management version 2
00:02.0 USB Controller: nVidia Corporation MCP67 OHCI USB 1.1 Controller
(rev a2) (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. Unknown device 82b3
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 58
Memory at feaff000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
00:02.1 USB Controller: nVidia Corporation MCP67 EHCI USB 2.0 Controller
(rev a2) (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. Unknown device 82b3
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 233
Memory at feafec00 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] Debug port
Capabilities: [80] Power Management version 2
00:04.0 USB Controller: nVidia Corporation MCP67 OHCI USB 1.1 Controller
(rev a2) (prog-if 10 [OHCI])
Subsystem: ASUSTeK Computer Inc. Unknown device 82b3
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 66
Memory at feafd000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
00:04.1 USB Controller: nVidia Corporation MCP67 EHCI USB 2.0 Controller
(rev a2) (prog-if 20 [EHCI])
Subsystem: ASUSTeK Computer Inc. Unknown device 82b3
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 50
Memory at feafe800 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] Debug port
Capabilities: [80] Power Management version 2
00:08.0 PCI bridge: nVidia Corporation MCP67 PCI Bridge (rev a2) (prog-if 01
[Subtractive decode])
Flags: bus master, 66MHz, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: feb00000-febfffff
Capabilities: [b8] #0d [0000]
Capabilities: [8c] HyperTransport: MSI Mapping
00:09.0 IDE interface: nVidia Corporation MCP67 AHCI Controller (rev a2)
(prog-if 85 [Master SecO PriO])
Subsystem: ASUSTeK Computer Inc. Unknown device 82b3
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 233
I/O ports at d480 [size=8]
I/O ports at d400 [size=4]
I/O ports at d080 [size=8]
I/O ports at d000 [size=4]
I/O ports at cc00 [size=16]
Memory at feafa000 (32-bit, non-prefetchable) [size=8K]
Capabilities: [44] Power Management version 2
Capabilities: [8c] #12 [0010]
00:0a.0 Ethernet controller: nVidia Corporation MCP67 Ethernet (rev a2)
Subsystem: ASUSTeK Computer Inc. Unknown device 82b3
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 90
Memory at feafc000 (32-bit, non-prefetchable) [size=4K]
I/O ports at c880 [size=8]
Memory at feafe400 (32-bit, non-prefetchable) [size=256]
Memory at feafe000 (32-bit, non-prefetchable) [size=16]
Capabilities: [44] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/3
Enable+
Capabilities: [6c] HyperTransport: MSI Mapping
00:0b.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2)
(prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
Capabilities: [40] #0d [0000]
Capabilities: [48] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1
Enable+
Capabilities: [60] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:0c.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2)
(prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
Capabilities: [40] #0d [0000]
Capabilities: [48] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1
Enable+
Capabilities: [60] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:0d.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2)
(prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
Capabilities: [40] #0d [0000]
Capabilities: [48] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1
Enable+
Capabilities: [60] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:0e.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2)
(prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=05, subordinate=05, sec-latency=0
Capabilities: [40] #0d [0000]
Capabilities: [48] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1
Enable+
Capabilities: [60] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:0f.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2)
(prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
Capabilities: [40] #0d [0000]
Capabilities: [48] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1
Enable+
Capabilities: [60] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:10.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2)
(prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
Capabilities: [40] #0d [0000]
Capabilities: [48] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1
Enable+
Capabilities: [60] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:11.0 PCI bridge: nVidia Corporation MCP67 PCI Express Bridge (rev a2)
(prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=08, subordinate=08, sec-latency=0
Capabilities: [40] #0d [0000]
Capabilities: [48] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/1
Enable+
Capabilities: [60] HyperTransport: MSI Mapping
Capabilities: [80] Express Root Port (Slot+) IRQ 0
00:12.0 VGA compatible controller: nVidia Corporation GeForce 7050 PV /
nForce 630a (rev a2) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. Unknown device 82b3
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 58
Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (64-bit, prefetchable) [size=256M]
Memory at fc000000 (64-bit, non-prefetchable) [size=16M]
[virtual] Expansion ROM at feac0000 [disabled] [size=128K]
Capabilities: [48] Power Management version 2
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
HyperTransport Technology Configuration
Flags: fast devsel
Capabilities: [80] HyperTransport: Host or Secondary Interface
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Address Map
Flags: fast devsel
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM
Controller
Flags: fast devsel
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Miscellaneous Control
Flags: fast devsel
Capabilities: [f0] #0f [0010]
01:06.0 Multimedia audio controller: Creative Labs [SB Live! Value] EMU10k1X
Subsystem: Creative Labs Unknown device 1001
Flags: bus master, medium devsel, latency 64, IRQ 82
I/O ports at ec00 [size=32]
Capabilities: [dc] Power Management version 2
01:07.0 Ethernet controller: VIA Technologies, Inc. VT6105 [Rhine-III] (rev
8b)
Subsystem: D-Link System Inc Unknown device 1405
Flags: bus master, medium devsel, latency 64, IRQ 74
I/O ports at e800 [size=256]
Memory at febffc00 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] Power Management version 2
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.centos.org/pipermail/centos/attachments/20080924/616da583/attachment.html>
More information about the CentOS
mailing list