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-0004.html>