On Wed, Sep 24, 2008 at 5:39 PM, nate centos@linuxpowered.net wrote:
http://www.linuxtopia.org/online_books/linux_kernel/kernel_configuration/re1...
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