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    SubjectRe: Linux 2.6.39
    Date
    From
    2.6.39 first observations: The framerate jitter in games that seem to  
    depend on kernel for low-jitter, like doom 3, is almost completely gone
    now. (Tested with latest nvidia driver something 75 something)
    I decided to try threadirqs from grub, but that did not work. Looks like
    the same error as I get when I tried the rt kernels, which was this one:

    http://www.paradoxuncreated.com/tmp/rterror.jpg

    Peace Be With You,
    Uwaysi.


    http://www.paradoxuncreated.com/tmp/.config39

    Pentium(R) Dual-Core CPU E5200 @ 2.50GHz

    uwaysi@Millennium:~$ lspci -v
    00:00.0 Host bridge: nVidia Corporation C55 Host Bridge (rev a2)
    Flags: bus master, 66MHz, fast devsel, latency 0
    Capabilities: <access denied>

    00:00.1 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:00.2 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:00.3 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: bus master, 66MHz, fast devsel, latency 0

    00:00.4 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: bus master, 66MHz, fast devsel, latency 0

    00:00.5 RAM memory: nVidia Corporation C55 Memory Controller (rev a2)
    Flags: bus master, 66MHz, fast devsel, latency 0

    00:00.6 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:00.7 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:01.0 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:01.1 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:01.2 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:01.3 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:01.4 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:01.5 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:01.6 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:02.0 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:02.1 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: bus master, 66MHz, fast devsel, latency 0

    00:02.2 RAM memory: nVidia Corporation C55 Memory Controller (rev a1)
    Flags: 66MHz, fast devsel

    00:03.0 PCI bridge: nVidia Corporation C55 PCI Express bridge (rev a1)
    (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=01, subordinate=05, sec-latency=0
    I/O behind bridge: 0000d000-0000dfff
    Memory behind bridge: fa000000-feafffff
    Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

    00:06.0 PCI bridge: nVidia Corporation C55 PCI Express bridge (rev a1)
    (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=06, subordinate=06, sec-latency=0
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

    00:07.0 PCI bridge: nVidia Corporation C55 PCI Express bridge (rev a1)
    (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

    00:09.0 RAM memory: nVidia Corporation MCP51 Host Bridge (rev a2)
    Subsystem: Micro-Star International Co., Ltd. Device 7380
    Flags: bus master, 66MHz, fast devsel, latency 0
    Capabilities: <access denied>

    00:0a.0 ISA bridge: nVidia Corporation MCP51 LPC Bridge (rev a3)
    Subsystem: Micro-Star International Co., Ltd. Device 7380
    Flags: bus master, 66MHz, fast devsel, latency 0
    I/O ports at 4f00 [size=128]

    00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a3)
    Subsystem: Micro-Star International Co., Ltd. Device 7380
    Flags: 66MHz, fast devsel, IRQ 11
    I/O ports at 5000 [size=64]
    I/O ports at 6000 [size=64]
    Capabilities: <access denied>
    Kernel driver in use: nForce2_smbus
    Kernel modules: i2c-nforce2

    00:0a.2 RAM memory: nVidia Corporation MCP51 Memory Controller 0 (rev a3)
    Subsystem: Micro-Star International Co., Ltd. Device 7380
    Flags: 66MHz, fast devsel

    00:0b.0 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3)
    (prog-if 10 [OHCI])
    Subsystem: Micro-Star International Co., Ltd. Device 7380
    Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20
    Memory at f9fff000 (32-bit, non-prefetchable) [size=4K]
    Capabilities: <access denied>
    Kernel driver in use: ohci_hcd

    00:0b.1 USB Controller: nVidia Corporation MCP51 USB Controller (rev a3)
    (prog-if 20 [EHCI])
    Subsystem: Micro-Star International Co., Ltd. Device 7380
    Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21
    Memory at f9ffec00 (32-bit, non-prefetchable) [size=256]
    Capabilities: <access denied>
    Kernel driver in use: ehci_hcd

    00:0d.0 IDE interface: nVidia Corporation MCP51 IDE (rev a1) (prog-if 8a
    [Master SecP PriP])
    Subsystem: Micro-Star International Co., Ltd. Device 7380
    Flags: bus master, 66MHz, fast devsel, latency 0
    [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
    [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
    [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
    [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
    I/O ports at ffa0 [size=16]
    Capabilities: <access denied>
    Kernel driver in use: pata_amd
    Kernel modules: pata_amd

    00:0e.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev
    a1) (prog-if 85 [Master SecO PriO])
    Subsystem: Micro-Star International Co., Ltd. Device 7380
    Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23
    I/O ports at c800 [size=8]
    I/O ports at c480 [size=4]
    I/O ports at c400 [size=8]
    I/O ports at c080 [size=4]
    I/O ports at c000 [size=16]
    Memory at f9ffd000 (32-bit, non-prefetchable) [size=4K]
    Capabilities: <access denied>
    Kernel driver in use: sata_nv
    Kernel modules: sata_nv

    00:0f.0 IDE interface: nVidia Corporation MCP51 Serial ATA Controller (rev
    a1) (prog-if 85 [Master SecO PriO])
    Subsystem: Micro-Star International Co., Ltd. Device 7380
    Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
    I/O ports at bc00 [size=8]
    I/O ports at b880 [size=4]
    I/O ports at b800 [size=8]
    I/O ports at b480 [size=4]
    I/O ports at b400 [size=16]
    Memory at f9ffc000 (32-bit, non-prefetchable) [size=4K]
    Capabilities: <access denied>
    Kernel driver in use: sata_nv
    Kernel modules: sata_nv

    00:10.0 PCI bridge: nVidia Corporation MCP51 PCI Bridge (rev a2) (prog-if
    01 [Subtractive decode])
    Flags: bus master, 66MHz, fast devsel, latency 0
    Bus: primary=00, secondary=08, subordinate=08, sec-latency=32
    I/O behind bridge: 0000e000-0000efff
    Memory behind bridge: feb00000-febfffff
    Capabilities: <access denied>

    00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev
    a2)
    Subsystem: Micro-Star International Co., Ltd. Device 7380
    Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
    Memory at f9ff8000 (32-bit, non-prefetchable) [size=16K]
    Capabilities: <access denied>
    Kernel driver in use: HDA Intel
    Kernel modules: snd-hda-intel

    00:14.0 Bridge: nVidia Corporation MCP51 Ethernet Controller (rev a3)
    Subsystem: Micro-Star International Co., Ltd. Device 380c
    Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23
    Memory at f9ff7000 (32-bit, non-prefetchable) [size=4K]
    I/O ports at b080 [size=8]
    Capabilities: <access denied>
    Kernel driver in use: forcedeth
    Kernel modules: forcedeth

    01:00.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for
    mainboards (rev a2) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=01, secondary=02, subordinate=05, sec-latency=0
    I/O behind bridge: 0000d000-0000dfff
    Memory behind bridge: fa000000-feafffff
    Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

    02:00.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for
    mainboards (rev a2) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=02, secondary=03, subordinate=03, sec-latency=0
    I/O behind bridge: 0000d000-0000dfff
    Memory behind bridge: fa000000-feafffff
    Prefetchable memory behind bridge: 00000000d0000000-00000000dfffffff
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

    02:02.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for
    mainboards (rev a2) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=02, secondary=04, subordinate=04, sec-latency=0
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

    02:03.0 PCI bridge: nVidia Corporation NF200 PCIe 2.0 switch for
    mainboards (rev a2) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=02, secondary=05, subordinate=05, sec-latency=0
    Capabilities: <access denied>
    Kernel driver in use: pcieport
    Kernel modules: shpchp

    03:00.0 VGA compatible controller: nVidia Corporation GT200 [GeForce GTX
    280] (rev a1) (prog-if 00 [VGA controller])
    Subsystem: eVga.com. Corp. Device 1280
    Flags: bus master, fast devsel, latency 0, IRQ 19
    Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
    Memory at d0000000 (64-bit, prefetchable) [size=256M]
    Memory at fa000000 (64-bit, non-prefetchable) [size=32M]
    I/O ports at dc00 [size=128]
    [virtual] Expansion ROM at fea80000 [disabled] [size=512K]
    Capabilities: <access denied>
    Kernel driver in use: nvidia
    Kernel modules: nvidia, nvidiafb

    08:09.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire
    II(M)] IEEE 1394 OHCI Controller (rev c0) (prog-if 10 [OHCI])
    Subsystem: Micro-Star International Co., Ltd. Device 380d
    Flags: bus master, medium devsel, latency 32, IRQ 10
    Memory at febff800 (32-bit, non-prefetchable) [size=2K]
    I/O ports at ec00 [size=128]
    Capabilities: <access denied>


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