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#1 2010-12-01 11:50:51

CraigRat
Member
Registered: 2010-11-30
Posts: 1

kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

Hi,

Since upgrading to 2.6.36-ARCH kernel I've noticed that my CPU has a constant load on one of the cores:

kworker/0:1 shows as using 61% CPU usage on one core.

I cannot seem to find out much about what kworker is and what logs I need to look at to diagnose, can anyone point me in the right direction?

Kind regards

Craig


** Heres lsmod's output **

Module                  Size  Used by
nls_cp437               4525  0 
vfat                    8176  0 
fat                    42802  1 vfat
ipv6                  245073  98 
ntfs                  197714  0 
fuse                   56432  5 
usb_storage            33980  1 
joydev                  7631  0 
usbhid                 32137  0 
hid                    60496  1 usbhid
nvidia               9187741  40 
snd_hda_codec_nvhdmi    13151  4 
snd_seq_dummy           1079  0 
snd_seq_oss            25040  0 
snd_seq_midi_event      4496  1 snd_seq_oss
snd_seq                41688  5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device          4369  3 snd_seq_dummy,snd_seq_oss,snd_seq
broadcom                5361  0 
tg3                   112513  0 
snd_pcm_oss            33630  0 
snd_mixer_oss          14654  1 snd_pcm_oss
ohci_hcd               18987  0 
libphy                 14607  2 broadcom,tg3
ehci_hcd               32812  0 
usbcore               115802  5 usb_storage,usbhid,ohci_hcd,ehci_hcd
snd_hda_codec_intelhdmi     9553  1 
snd_hda_codec_realtek   198999  1 
shpchp                 23005  0 
pci_hotplug            21555  1 shpchp
psmouse                49765  0 
evdev                   6660  9 
snd_hda_intel          19180  4 
snd_hda_codec          69419  4 snd_hda_codec_nvhdmi,snd_hda_codec_intelhdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep               4764  1 snd_hda_codec
snd_pcm                59168  4 snd_pcm_oss,snd_hda_intel,snd_hda_codec
snd_timer              15455  3 snd_seq,snd_pcm
snd                    43283  17 snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
soundcore               4929  1 snd
snd_page_alloc          5981  2 snd_hda_intel,snd_pcm
i2c_i801                6946  0 
i2c_core               15634  2 nvidia,i2c_i801
thermal                 9690  0 
serio_raw               3566  0 
button                  3746  0 
sg                     20996  0 
iTCO_wdt                8677  0 
iTCO_vendor_support     1433  1 iTCO_wdt
intel_agp              24075  0 
firewire_ohci          23292  0 
agpgart                22816  2 nvidia,intel_agp
firewire_core          42849  1 firewire_ohci
crc_itu_t               1053  1 firewire_core
processor              22776  0 
dcdbas                  4292  0 
vboxdrv               149186  0 
ext4                  288101  3 
mbcache                 4298  1 ext4
jbd2                   58372  1 ext4
crc16                   1053  1 ext4
sr_mod                 13217  0 
sd_mod                 24384  7 
cdrom                  31410  1 sr_mod
pata_acpi               2308  0 
ata_piix               17935  4 
libata                140500  2 pata_acpi,ata_piix
scsi_mod              106987  5 usb_storage,sg,sr_mod,sd_mod,libata


**dmesg output:**

Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 2.6.36-ARCH (tobias@T-POWA-LX) (gcc version 4.5.1 (GCC) ) #1 SMP PREEMPT Wed Nov 24 06:44:11 UTC 2010
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 00000000bf780000 (usable)
 BIOS-e820: 00000000bf780000 - 00000000bf78e000 (ACPI data)
 BIOS-e820: 00000000bf78e000 - 00000000bf7d0000 (ACPI NVS)
 BIOS-e820: 00000000bf7d0000 - 00000000bf7e0000 (reserved)
 BIOS-e820: 00000000bf7ed000 - 00000000c0000000 (reserved)
 BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
 BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
 BIOS-e820: 0000000100000000 - 0000000138000000 (usable)
Notice: NX (Execute Disable) protection cannot be enabled: non-PAE kernel!
DMI present.
e820 update range: 0000000000000000 - 0000000000001000 (usable) ==> (reserved)
e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
last_pfn = 0xbf780 max_arch_pfn = 0x100000
MTRR default type: uncachable
MTRR fixed ranges enabled:
  00000-9FFFF write-back
  A0000-BFFFF uncachable
  C0000-CFFFF write-protect
  D0000-DFFFF uncachable
  E0000-E7FFF write-through
  E8000-FFFFF write-protect
MTRR variable ranges enabled:
  0 base 000000000 mask F00000000 write-back
  1 base 100000000 mask FC0000000 write-back
  2 base 0C0000000 mask FC0000000 uncachable
  3 disabled
  4 disabled
  5 disabled
  6 disabled
  7 disabled
x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106
e820 update range: 00000000c0000000 - 0000000100000000 (usable) ==> (reserved)
e820 update range: 0000000000002000 - 0000000000010000 (usable) ==> (reserved)
Scanning 1 areas for low memory corruption
modified physical RAM map:
 modified: 0000000000000000 - 0000000000001000 (reserved)
 modified: 0000000000001000 - 0000000000002000 (usable)
 modified: 0000000000002000 - 0000000000010000 (reserved)
 modified: 0000000000010000 - 000000000009fc00 (usable)
 modified: 000000000009fc00 - 00000000000a0000 (reserved)
 modified: 00000000000e4000 - 0000000000100000 (reserved)
 modified: 0000000000100000 - 00000000bf780000 (usable)
 modified: 00000000bf780000 - 00000000bf78e000 (ACPI data)
 modified: 00000000bf78e000 - 00000000bf7d0000 (ACPI NVS)
 modified: 00000000bf7d0000 - 00000000bf7e0000 (reserved)
 modified: 00000000bf7ed000 - 00000000c0000000 (reserved)
 modified: 00000000fee00000 - 00000000fee01000 (reserved)
 modified: 00000000ffb00000 - 0000000100000000 (reserved)
 modified: 0000000100000000 - 0000000138000000 (usable)
initial memory mapped : 0 - 01800000
found SMP MP-table at [c00ff780] ff780
init_memory_mapping: 0000000000000000-00000000377fe000
 0000000000 - 0000400000 page 4k
 0000400000 - 0037400000 page 2M
 0037400000 - 00377fe000 page 4k
kernel direct mapping tables up to 377fe000 @ 15000-1a000
RAMDISK: 7fe57000 - 7fff0000
Allocated new RAMDISK: 00100000 - 00298455
Move RAMDISK from 000000007fe57000 - 000000007ffef454 to 00100000 - 00298454
ACPI: RSDP 000f9b00 00024 (v02 ACPIAM)
ACPI: XSDT bf780100 0006C (v01 DELL    FX09    20091106 MSFT 00000097)
ACPI: FACP bf780290 000F4 (v04 DELL   FX09     20091106 MSFT 00000097)
ACPI: DSDT bf780660 05B02 (v02  1AAAA 1AAAA000 00000000 INTL 20051117)
ACPI: FACS bf78e000 00040
ACPI: APIC bf780390 0008C (v02 DELL   FX09     20091106 MSFT 00000097)
ACPI: MCFG bf780420 0003C (v01 DELL   OEMMCFG  20091106 MSFT 00000097)
ACPI: SLIC bf780460 00176 (v01 DELL    FX09    20091106 MSFT 00000097)
ACPI: OSFR bf7805e0 00080 (v01 DELL   FX09     20091106 MSFT 00000097)
ACPI: OEMB bf78e040 00072 (v01 DELL   FX09     20091106 MSFT 00000097)
ACPI: HPET bf78a660 00038 (v01 DELL   OEMHPET  20091106 MSFT 00000097)
ACPI: ASF! bf78a6a0 00099 (v32 LEGEND I865PASF 00000001 INTL 20051117)
ACPI: SSDT bf78f800 00363 (v01 DpgPmm    CpuPm 00000012 INTL 20051117)
ACPI: Local APIC address 0xfee00000
2175MB HIGHMEM available.
887MB LOWMEM available.
  mapped low ram: 0 - 377fe000
  low ram: 0 - 377fe000
Zone PFN ranges:
  DMA      0x00000001 -> 0x00001000
  Normal   0x00001000 -> 0x000377fe
  HighMem  0x000377fe -> 0x000bf780
Movable zone start PFN for each node
early_node_map[3] active PFN ranges
    0: 0x00000001 -> 0x00000002
    0: 0x00000010 -> 0x0000009f
    0: 0x00000100 -> 0x000bf780
On node 0 totalpages: 784144
free_area_init_node: node 0, pgdat c142d5c0, node_mem_map c1598020
  DMA zone: 32 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 3952 pages, LIFO batch:0
  Normal zone: 1744 pages used for memmap
  Normal zone: 221486 pages, LIFO batch:31
  HighMem zone: 4352 pages used for memmap
  HighMem zone: 552578 pages, LIFO batch:31
Using APIC driver default
ACPI: PM-Timer IO Port: 0x808
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
ACPI: LAPIC (acpi_id[0x02] lapic_id[0x04] enabled)
ACPI: LAPIC (acpi_id[0x03] lapic_id[0x01] enabled)
ACPI: LAPIC (acpi_id[0x04] lapic_id[0x05] enabled)
ACPI: LAPIC (acpi_id[0x05] lapic_id[0x84] disabled)
ACPI: LAPIC (acpi_id[0x06] lapic_id[0x85] disabled)
ACPI: LAPIC (acpi_id[0x07] lapic_id[0x86] disabled)
ACPI: LAPIC (acpi_id[0x08] lapic_id[0x87] disabled)
ACPI: IOAPIC (id[0x06] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 6, version 32, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Using ACPI (MADT) for SMP configuration information
ACPI: HPET id: 0x8086a701 base: 0xfed00000
SMP: Allowing 8 CPUs, 4 hotplug CPUs
nr_irqs_gsi: 40
early_res array is doubled to 64 at [16000 - 167ff]
PM: Registered nosave memory: 0000000000002000 - 0000000000010000
PM: Registered nosave memory: 000000000009f000 - 00000000000a0000
PM: Registered nosave memory: 00000000000a0000 - 00000000000e4000
PM: Registered nosave memory: 00000000000e4000 - 0000000000100000
Allocating PCI resources starting at c0000000 (gap: c0000000:3ee00000)
Booting paravirtualized kernel on bare hardware
setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:1
PERCPU: Embedded 13 pages/cpu @c3000000 s31488 r0 d21760 u524288
pcpu-alloc: s31488 r0 d21760 u524288 alloc=1*4194304
pcpu-alloc: [0] 0 1 2 3 4 5 6 7 
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 778016
Kernel command line: root=/dev/disk/by-uuid/3135d7b1-3c52-4afc-9f7f-990f0ebda296 ro
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
early_res array is doubled to 128 at [16800 - 177ff]
allocated 15685100 bytes of page_cgroup
please try 'cgroup_disable=memory' option if you don't want memory cgroups
Subtract (57 early reservations)
  #1 [0000001000 - 0000002000]   EX TRAMPOLINE
  #2 [0001000000 - 000158fe8c]   TEXT DATA BSS
  #3 [0001590000 - 0001596147]             BRK
  #4 [00000ff790 - 0000100000]   BIOS reserved
  #5 [00000ff780 - 00000ff790]    MP-table mpf
  #6 [000009fc00 - 00000fc6c0]   BIOS reserved
  #7 [00000fc80c - 00000ff780]   BIOS reserved
  #8 [00000fc6c0 - 00000fc80c]    MP-table mpc
  #9 [0000010000 - 0000011000]      TRAMPOLINE
  #10 [0000011000 - 0000015000]     ACPI WAKEUP
  #11 [0000015000 - 0000016000]         PGTABLE
  #12 [0000100000 - 0000299000]     NEW RAMDISK
  #13 [0001597000 - 0001598000]         BOOTMEM
  #14 [0001598000 - 0002d88000]         BOOTMEM
  #15 [000158fec0 - 000158fec4]         BOOTMEM
  #16 [000158ff00 - 000158ffc0]         BOOTMEM
  #17 [0001596180 - 00015961d4]         BOOTMEM
  #18 [0002d88000 - 0002d8b000]         BOOTMEM
  #19 [0001596200 - 00015962cc]         BOOTMEM
  #20 [0002d8b000 - 0002d97000]         BOOTMEM
  #21 [000158ffc0 - 000158ffe5]         BOOTMEM
  #22 [0001596300 - 0001596327]         BOOTMEM
  #23 [0001596340 - 00015964c8]         BOOTMEM
  #24 [0001596500 - 0001596540]         BOOTMEM
  #25 [0001596540 - 0001596580]         BOOTMEM
  #26 [0001596580 - 00015965c0]         BOOTMEM
  #27 [00015965c0 - 0001596600]         BOOTMEM
  #28 [0001596600 - 0001596640]         BOOTMEM
  #29 [0001596640 - 0001596680]         BOOTMEM
  #30 [0001596680 - 00015966c0]         BOOTMEM
  #31 [00015966c0 - 0001596700]         BOOTMEM
  #32 [0001596700 - 0001596740]         BOOTMEM
  #33 [0001596740 - 0001596780]         BOOTMEM
  #34 [0001596780 - 00015967c0]         BOOTMEM
  #35 [00015967c0 - 00015967d0]         BOOTMEM
  #36 [0001596800 - 0001596810]         BOOTMEM
  #37 [0001596840 - 000159687f]         BOOTMEM
  #38 [0001596880 - 00015968bf]         BOOTMEM
  #39 [0003000000 - 000300d000]         BOOTMEM
  #40 [0003080000 - 000308d000]         BOOTMEM
  #41 [0003100000 - 000310d000]         BOOTMEM
  #42 [0003180000 - 000318d000]         BOOTMEM
  #43 [0003200000 - 000320d000]         BOOTMEM
  #44 [0003280000 - 000328d000]         BOOTMEM
  #45 [0003300000 - 000330d000]         BOOTMEM
  #46 [0003380000 - 000338d000]         BOOTMEM
  #47 [00015968c0 - 00015968c4]         BOOTMEM
  #48 [0001596900 - 0001596904]         BOOTMEM
  #49 [0001596940 - 0001596960]         BOOTMEM
  #50 [0001596980 - 00015969a0]         BOOTMEM
  #51 [00015969c0 - 0001596a58]         BOOTMEM
  #52 [0001596a80 - 0001596ab8]         BOOTMEM
  #53 [0002d97000 - 0002d9b000]         BOOTMEM
  #54 [0002d9b000 - 0002e1b000]         BOOTMEM
  #55 [0002e1b000 - 0002e5b000]         BOOTMEM
  #56 [000338d000 - 00042825ec]         BOOTMEM
Initializing HighMem for node 0 (000377fe:000bf780)
Memory: 3088092k/3137024k available (3102k kernel code, 48484k reserved, 1207k data, 428k init, 2227720k highmem)
virtual kernel memory layout:
    fixmap  : 0xfff16000 - 0xfffff000   ( 932 kB)
    pkmap   : 0xff800000 - 0xffc00000   (4096 kB)
    vmalloc : 0xf7ffe000 - 0xff7fe000   ( 120 MB)
    lowmem  : 0xc0000000 - 0xf77fe000   ( 887 MB)
      .init : 0xc1436000 - 0xc14a1000   ( 428 kB)
      .data : 0xc1307a56 - 0xc14357e0   (1207 kB)
      .text : 0xc1000000 - 0xc1307a56   (3102 kB)
Checking if this processor honours the WP bit even in supervisor mode...Ok.
SLUB: Genslabs=13, HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
Hierarchical RCU implementation.
        RCU-based detection of stalled CPUs is disabled.
        Verbose stalled-CPUs detection is disabled.
NR_IRQS:512
Extended CMOS year: 2000
Console: colour VGA+ 80x25
console [tty0] enabled
hpet clockevent registered
Fast TSC calibration using PIT
Detected 2926.435 MHz processor.
Calibrating delay loop (skipped), value calculated using timer frequency.. 5855.73 BogoMIPS (lpj=9754783)
pid_max: default: 32768 minimum: 301
Security Framework initialized
TOMOYO Linux initialized
AppArmor: AppArmor disabled by boot time parameter
Mount-cache hash table entries: 512
Initializing cgroup subsys ns
Initializing cgroup subsys cpuacct
Initializing cgroup subsys memory
Initializing cgroup subsys devices
Initializing cgroup subsys freezer
Initializing cgroup subsys net_cls
Initializing cgroup subsys blkio
CPU: Physical Processor ID: 0
CPU: Processor Core ID: 0
mce: CPU supports 9 MCE banks
CPU0: Thermal monitoring enabled (TM1)
using mwait in idle threads.
Performance Events: PEBS fmt1+, Westmere events, Intel PMU driver.
... version:                3
... bit width:              48
... generic registers:      4
... value mask:             0000ffffffffffff
... max period:             000000007fffffff
... fixed-purpose events:   3
... event mask:             000000070000000f
ACPI: Core revision 20100702
Enabling APIC mode:  Flat.  Using 1 I/O APICs
..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
CPU0: Intel(R) Core(TM) i3 CPU         530  @ 2.93GHz stepping 02
NMI watchdog enabled, takes one hw-pmu counter.
Booting Node   0, Processors  #1
Initializing CPU#1
NMI watchdog enabled, takes one hw-pmu counter.
 #2
Initializing CPU#2
NMI watchdog enabled, takes one hw-pmu counter.
 #3
Initializing CPU#3
NMI watchdog enabled, takes one hw-pmu counter.
Brought up 4 CPUs
Total of 4 processors activated (23417.45 BogoMIPS).
devtmpfs: initialized
NET: Registered protocol family 16
ACPI FADT declares the system doesn't support PCIe ASPM, so disable it
ACPI: bus type pci registered
PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000)
PCI: not using MMCONFIG
PCI: PCI BIOS revision 3.00 entry at 0xf0031, last bus=4
PCI: Using configuration type 1 for base access
bio: create slab <bio-0> at 0
ACPI: EC: Look up EC in DSDT
ACPI: Executed 1 blocks of module-level executable AML code
ACPI: SSDT bf78e0c0 01238 (v01 DpgPmm  P001Ist 00000011 INTL 20051117)
ACPI: Dynamic OEM Table Load:
ACPI: SSDT (null) 01238 (v01 DpgPmm  P001Ist 00000011 INTL 20051117)
ACPI: SSDT bf78f300 004F4 (v01  PmRef  P001Cst 00003001 INTL 20051117)
ACPI: Dynamic OEM Table Load:
ACPI: SSDT (null) 004F4 (v01  PmRef  P001Cst 00003001 INTL 20051117)
ACPI: Interpreter enabled
ACPI: (supports S0 S3 S4 S5)
ACPI: Using IOAPIC for interrupt routing
PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xe0000000-0xefffffff] (base 0xe0000000)
PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in ACPI motherboard resources
PCI: Using MMCONFIG for extended config space
ACPI: No dock devices found.
PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
pci_root PNP0A08:00: host bridge window [io  0x0000-0x0cf7]
pci_root PNP0A08:00: host bridge window [io  0x0d00-0xffff]
pci_root PNP0A08:00: host bridge window [mem 0x000a0000-0x000bffff]
pci_root PNP0A08:00: host bridge window [mem 0x000d0000-0x000dffff]
pci_root PNP0A08:00: host bridge window [mem 0xc0000000-0xdfffffff]
pci_root PNP0A08:00: host bridge window [mem 0xf0000000-0xfed8ffff]
DMAR: BIOS has allocated no shadow GTT; disabling IOMMU for graphics
pci 0000:00:01.0: PME# supported from D0 D3hot D3cold
pci 0000:00:01.0: PME# disabled
pci 0000:00:16.0: reg 10: [mem 0xf9ffe000-0xf9ffe00f 64bit]
pci 0000:00:16.0: PME# supported from D0 D3hot D3cold
pci 0000:00:16.0: PME# disabled
pci 0000:00:1a.0: reg 10: [mem 0xf9ffc000-0xf9ffc3ff]
pci 0000:00:1a.0: PME# supported from D0 D3hot D3cold
pci 0000:00:1a.0: PME# disabled
pci 0000:00:1b.0: reg 10: [mem 0xf9ff8000-0xf9ffbfff 64bit]
pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
pci 0000:00:1b.0: PME# disabled
pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
pci 0000:00:1c.0: PME# disabled
pci 0000:00:1c.5: PME# supported from D0 D3hot D3cold
pci 0000:00:1c.5: PME# disabled
pci 0000:00:1d.0: reg 10: [mem 0xf9ff6000-0xf9ff63ff]
pci 0000:00:1d.0: PME# supported from D0 D3hot D3cold
pci 0000:00:1d.0: PME# disabled
pci 0000:00:1f.2: reg 10: [io  0xdc00-0xdc07]
pci 0000:00:1f.2: reg 14: [io  0xd880-0xd883]
pci 0000:00:1f.2: reg 18: [io  0xd800-0xd807]
pci 0000:00:1f.2: reg 1c: [io  0xd480-0xd483]
pci 0000:00:1f.2: reg 20: [io  0xd400-0xd40f]
pci 0000:00:1f.2: reg 24: [io  0xd080-0xd08f]
pci 0000:00:1f.3: reg 10: [mem 0xf9ff4000-0xf9ff40ff 64bit]
pci 0000:00:1f.3: reg 20: [io  0x0400-0x041f]
pci 0000:00:1f.5: reg 10: [io  0xcc00-0xcc07]
pci 0000:00:1f.5: reg 14: [io  0xc880-0xc883]
pci 0000:00:1f.5: reg 18: [io  0xc800-0xc807]
pci 0000:00:1f.5: reg 1c: [io  0xc480-0xc483]
pci 0000:00:1f.5: reg 20: [io  0xc400-0xc40f]
pci 0000:00:1f.5: reg 24: [io  0xc080-0xc08f]
pci 0000:01:00.0: reg 10: [mem 0xfa000000-0xfaffffff]
pci 0000:01:00.0: reg 14: [mem 0xd0000000-0xdfffffff 64bit pref]
pci 0000:01:00.0: reg 1c: [mem 0xce000000-0xcfffffff 64bit pref]
pci 0000:01:00.0: reg 24: [io  0xec00-0xec7f]
pci 0000:01:00.0: reg 30: [mem 0xfbd80000-0xfbdfffff pref]
pci 0000:01:00.1: reg 10: [mem 0xfbd7c000-0xfbd7ffff]
pci 0000:00:01.0: PCI bridge to [bus 01-01]
pci 0000:00:01.0:   bridge window [io  0xe000-0xefff]
pci 0000:00:01.0:   bridge window [mem 0xfa000000-0xfbdfffff]
pci 0000:00:01.0:   bridge window [mem 0xce000000-0xdfffffff 64bit pref]
pci 0000:00:1c.0: PCI bridge to [bus 02-02]
pci 0000:00:1c.0:   bridge window [io  0xf000-0x0000] (disabled)
pci 0000:00:1c.0:   bridge window [mem 0xfff00000-0x000fffff] (disabled)
pci 0000:00:1c.0:   bridge window [mem 0xfff00000-0x000fffff pref] (disabled)
pci 0000:03:00.0: reg 10: [mem 0xfbef0000-0xfbefffff 64bit]
pci 0000:03:00.0: PME# supported from D3hot D3cold
pci 0000:03:00.0: PME# disabled
pci 0000:00:1c.5: PCI bridge to [bus 03-03]
pci 0000:00:1c.5:   bridge window [io  0xf000-0x0000] (disabled)
pci 0000:00:1c.5:   bridge window [mem 0xfbe00000-0xfbefffff]
pci 0000:00:1c.5:   bridge window [mem 0xfff00000-0x000fffff pref] (disabled)
pci 0000:04:01.0: reg 10: [mem 0xfbfff000-0xfbffffff]
pci 0000:04:01.0: PME# supported from D0 D1 D3hot D3cold
pci 0000:04:01.0: PME# disabled
pci 0000:04:01.1: reg 10: [mem 0xfbffe000-0xfbffefff]
pci 0000:04:01.1: PME# supported from D0 D1 D3hot D3cold
pci 0000:04:01.1: PME# disabled
pci 0000:04:01.2: reg 10: [mem 0xfbffd000-0xfbffdfff]
pci 0000:04:01.2: PME# supported from D0 D1 D3hot D3cold
pci 0000:04:01.2: PME# disabled
pci 0000:04:01.3: reg 10: [mem 0xfbffcc00-0xfbffccff]
pci 0000:04:01.3: PME# supported from D0 D3hot D3cold
pci 0000:04:01.3: PME# disabled
pci 0000:04:01.4: reg 10: [mem 0xfbffc000-0xfbffc7ff]
pci 0000:04:01.4: reg 30: [mem 0xfbfe0000-0xfbfeffff pref]
pci 0000:04:01.4: supports D1 D2
pci 0000:04:01.4: PME# supported from D1 D2 D3hot
pci 0000:04:01.4: PME# disabled
pci 0000:00:1e.0: PCI bridge to [bus 04-04] (subtractive decode)
pci 0000:00:1e.0:   bridge window [io  0xf000-0x0000] (disabled)
pci 0000:00:1e.0:   bridge window [mem 0xfbf00000-0xfbffffff]
pci 0000:00:1e.0:   bridge window [mem 0xfff00000-0x000fffff pref] (disabled)
pci 0000:00:1e.0:   bridge window [io  0x0000-0x0cf7] (subtractive decode)
pci 0000:00:1e.0:   bridge window [io  0x0d00-0xffff] (subtractive decode)
pci 0000:00:1e.0:   bridge window [mem 0x000a0000-0x000bffff] (subtractive decode)
pci 0000:00:1e.0:   bridge window [mem 0x000d0000-0x000dffff] (subtractive decode)
pci 0000:00:1e.0:   bridge window [mem 0xc0000000-0xdfffffff] (subtractive decode)
pci 0000:00:1e.0:   bridge window [mem 0xf0000000-0xfed8ffff] (subtractive decode)
pci_bus 0000:00: on NUMA node 0
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.BR1E._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.BR20._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.BR25._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 6 7 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs *5)
ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 6 7 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 *4 6 7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 6 *7 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 6 7 10 11 12 14 *15)
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 6 7 10 11 12 *14 15)
HEST: Table is not found!
vgaarb: device added: PCI:0000:01:00.0,decodes=io+mem,owns=io+mem,locks=none
vgaarb: loaded
PCI: Using ACPI for IRQ routing
PCI: pci_cache_line_size set to 64 bytes
reserve RAM buffer: 0000000000002000 - 000000000000ffff 
reserve RAM buffer: 000000000009fc00 - 000000000009ffff 
reserve RAM buffer: 00000000bf780000 - 00000000bfffffff 
NetLabel: Initializing
NetLabel:  domain hash size = 128
NetLabel:  protocols = UNLABELED CIPSOv4
NetLabel:  unlabeled traffic allowed by default
hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0, 0, 0, 0, 0, 0
hpet0: 8 comparators, 64-bit 14.318180 MHz counter
Switching to clocksource tsc
pnp: PnP ACPI init
ACPI: bus type pnp registered
pnp: PnP ACPI: found 14 devices
ACPI: ACPI bus type pnp unregistered
system 00:01: [mem 0xfc000000-0xfcffffff] has been reserved
system 00:01: [mem 0xfd000000-0xfdffffff] has been reserved
system 00:01: [mem 0xfe000000-0xfebfffff] has been reserved
system 00:01: [mem 0xfed14000-0xfed19fff] has been reserved
system 00:06: [io  0x0a00-0x0a0f] has been reserved
system 00:06: [io  0x0a10-0x0a1f] has been reserved
system 00:06: [io  0x0a20-0x0a2f] has been reserved
system 00:06: [io  0x0a30-0x0a3f] has been reserved
system 00:07: [io  0x04d0-0x04d1] has been reserved
system 00:07: [io  0x0800-0x087f] has been reserved
system 00:07: [io  0x0500-0x057f] has been reserved
system 00:07: [mem 0xfed1c000-0xfed1ffff] has been reserved
system 00:07: [mem 0xfed20000-0xfed3ffff] has been reserved
system 00:07: [mem 0xfed40000-0xfed8ffff] has been reserved
system 00:0a: [mem 0xffc00000-0xffefffff] has been reserved
system 00:0b: [mem 0xfec00000-0xfec00fff] could not be reserved
system 00:0b: [mem 0xfee00000-0xfee00fff] has been reserved
system 00:0c: [mem 0xe0000000-0xefffffff] has been reserved
system 00:0d: [mem 0x00000000-0x0009ffff] could not be reserved
system 00:0d: [mem 0x000c0000-0x000cffff] could not be reserved
system 00:0d: [mem 0x000e0000-0x000fffff] could not be reserved
system 00:0d: [mem 0x00100000-0xbfffffff] could not be reserved
system 00:0d: [mem 0xfed90000-0xffffffff] could not be reserved
pci 0000:00:1c.0: BAR 14: assigned [mem 0xc0000000-0xc01fffff]
pci 0000:00:1c.0: BAR 15: assigned [mem 0xc0200000-0xc03fffff 64bit pref]
pci 0000:00:1c.0: BAR 13: assigned [io  0x1000-0x1fff]
pci 0000:00:01.0: PCI bridge to [bus 01-01]
pci 0000:00:01.0:   bridge window [io  0xe000-0xefff]
pci 0000:00:01.0:   bridge window [mem 0xfa000000-0xfbdfffff]
pci 0000:00:01.0:   bridge window [mem 0xce000000-0xdfffffff 64bit pref]
pci 0000:00:1c.0: PCI bridge to [bus 02-02]
pci 0000:00:1c.0:   bridge window [io  0x1000-0x1fff]
pci 0000:00:1c.0:   bridge window [mem 0xc0000000-0xc01fffff]
pci 0000:00:1c.0:   bridge window [mem 0xc0200000-0xc03fffff 64bit pref]
pci 0000:00:1c.5: PCI bridge to [bus 03-03]
pci 0000:00:1c.5:   bridge window [io  disabled]
pci 0000:00:1c.5:   bridge window [mem 0xfbe00000-0xfbefffff]
pci 0000:00:1c.5:   bridge window [mem pref disabled]
pci 0000:00:1e.0: PCI bridge to [bus 04-04]
pci 0000:00:1e.0:   bridge window [io  disabled]
pci 0000:00:1e.0:   bridge window [mem 0xfbf00000-0xfbffffff]
pci 0000:00:1e.0:   bridge window [mem pref disabled]
pci 0000:00:01.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
pci 0000:00:01.0: setting latency timer to 64
pci 0000:00:1c.0: enabling device (0104 -> 0107)
pci 0000:00:1c.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
pci 0000:00:1c.0: setting latency timer to 64
pci 0000:00:1c.5: PCI INT B -> GSI 16 (level, low) -> IRQ 16
pci 0000:00:1c.5: setting latency timer to 64
pci 0000:00:1e.0: setting latency timer to 64
pci_bus 0000:00: resource 4 [io  0x0000-0x0cf7]
pci_bus 0000:00: resource 5 [io  0x0d00-0xffff]
pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff]
pci_bus 0000:00: resource 7 [mem 0x000d0000-0x000dffff]
pci_bus 0000:00: resource 8 [mem 0xc0000000-0xdfffffff]
pci_bus 0000:00: resource 9 [mem 0xf0000000-0xfed8ffff]
pci_bus 0000:01: resource 0 [io  0xe000-0xefff]
pci_bus 0000:01: resource 1 [mem 0xfa000000-0xfbdfffff]
pci_bus 0000:01: resource 2 [mem 0xce000000-0xdfffffff 64bit pref]
pci_bus 0000:02: resource 0 [io  0x1000-0x1fff]
pci_bus 0000:02: resource 1 [mem 0xc0000000-0xc01fffff]
pci_bus 0000:02: resource 2 [mem 0xc0200000-0xc03fffff 64bit pref]
pci_bus 0000:03: resource 1 [mem 0xfbe00000-0xfbefffff]
pci_bus 0000:04: resource 1 [mem 0xfbf00000-0xfbffffff]
pci_bus 0000:04: resource 4 [io  0x0000-0x0cf7]
pci_bus 0000:04: resource 5 [io  0x0d00-0xffff]
pci_bus 0000:04: resource 6 [mem 0x000a0000-0x000bffff]
pci_bus 0000:04: resource 7 [mem 0x000d0000-0x000dffff]
pci_bus 0000:04: resource 8 [mem 0xc0000000-0xdfffffff]
pci_bus 0000:04: resource 9 [mem 0xf0000000-0xfed8ffff]
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
UDP hash table entries: 512 (order: 2, 16384 bytes)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
NET: Registered protocol family 1
pci 0000:01:00.0: Boot video device
PCI: CLS 32 bytes, default 64
Unpacking initramfs...
Freeing initrd memory: 1636k freed
apm: BIOS not found.
Scanning for low memory corruption every 60 seconds
audit: initializing netlink socket (disabled)
type=2000 audit(1291144818.506:1): initialized
highmem bounce pool size: 64 pages
HugeTLB registered 4 MB page size, pre-allocated 0 pages
VFS: Disk quotas dquot_6.5.2
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
msgmni has been set to 1683
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
intel_idle: MWAIT substates: 0x1120
intel_idle: v0.4 model 0x25
intel_idle: lapic_timer_reliable_states 0xffffffff
ERST: Table is not found!
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
PNP: No PS/2 controller found. Probing ports directly.
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
mice: PS/2 mouse device common for all mice
rtc_cmos 00:03: RTC can wake from S4
rtc_cmos 00:03: rtc core: registered rtc_cmos as rtc0
rtc0: alarms up to one month, y3k, 114 bytes nvram, hpet irqs
cpuidle: using governor ladder
cpuidle: using governor menu
TCP cubic registered
NET: Registered protocol family 17
Registering the dns_resolver key type
Using IPI No-Shortcut mode
PM: Resume from disk failed.
registered taskstats version 1
rtc_cmos 00:03: setting system clock to 2010-11-30 19:20:19 UTC (1291144819)
Initalizing network drop monitor service
Freeing unused kernel memory: 428k freed
udev[46]: starting version 163
SCSI subsystem initialized
libata version 3.00 loaded.
ata_piix 0000:00:1f.2: version 2.13
ata_piix 0000:00:1f.2: PCI INT B -> GSI 19 (level, low) -> IRQ 19
ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
ata_piix 0000:00:1f.2: setting latency timer to 64
scsi0 : ata_piix
scsi1 : ata_piix
ata1: SATA max UDMA/133 cmd 0xdc00 ctl 0xd880 bmdma 0xd400 irq 19
ata2: SATA max UDMA/133 cmd 0xd800 ctl 0xd480 bmdma 0xd408 irq 19
ata_piix 0000:00:1f.5: PCI INT B -> GSI 19 (level, low) -> IRQ 19
ata_piix 0000:00:1f.5: MAP [ P0 -- P1 -- ]
ata_piix 0000:00:1f.5: setting latency timer to 64
scsi2 : ata_piix
scsi3 : ata_piix
ata3: SATA max UDMA/133 cmd 0xcc00 ctl 0xc880 bmdma 0xc400 irq 19
ata4: SATA max UDMA/133 cmd 0xc800 ctl 0xc480 bmdma 0xc408 irq 19
ata4: SATA link down (SStatus 0 SControl 300)
ata3: SATA link down (SStatus 0 SControl 300)
ata1.00: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.01: SATA link down (SStatus 0 SControl 300)
ata1.00: ATA-8: Hitachi HDT721050SLA360, ST3OA38E, max UDMA/133
ata1.00: 976773168 sectors, multi 16: LBA48 NCQ (depth 0/32)
ata2.00: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata2.01: SATA link down (SStatus 0 SControl 300)
ata2.01: link offline, clearing class 3 to NONE
ata2.00: ATAPI: TSSTcorp DVD+/-RW TS-H653G, DW10, max UDMA/100
ata2.00: applying bridge limits
ata1.00: configured for UDMA/133
scsi 0:0:0:0: Direct-Access     ATA      Hitachi HDT72105 ST3O PQ: 0 ANSI: 5
ata2.00: configured for UDMA/100
scsi 1:0:0:0: CD-ROM            TSSTcorp DVD+-RW TS-H653G DW10 PQ: 0 ANSI: 5
sd 0:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/465 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sr0: scsi3-mmc drive: 94x/94x writer dvd-ram cd/rw xa/form2 cdda tray
cdrom: Uniform CD-ROM driver Revision: 3.20
sr 1:0:0:0: Attached scsi CD-ROM sr0
 sda: sda1 sda2 sda3 sda4 < sda5 sda6 >
sd 0:0:0:0: [sda] Attached SCSI disk
EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null)
Not activating Mandatory Access Control now since /sbin/tomoyo-init doesn't exist.
udev[884]: starting version 164
vboxdrv: Trying to deactivate the NMI watchdog permanently...
vboxdrv: Warning: 2.6.31+ kernel detected. Most likely the hardware performance
vboxdrv: counter framework which can generate NMIs is active. You have to prevent
vboxdrv: the usage of hardware performance counters by
vboxdrv:   echo 2 > /proc/sys/kernel/perf_counter_paranoid
vboxdrv: Found 4 processor cores.
vboxdrv: fAsync=0 offMin=0x27a offMax=0x5d86
vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'.
vboxdrv: Successfully loaded version 3.2.10 (interface 0x00140001).
dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
ACPI: acpi_idle yielding to intel_idle
Linux agpgart interface v0.103
firewire_ohci 0000:04:01.4: PCI INT C -> GSI 20 (level, low) -> IRQ 20
iTCO_vendor_support: vendor-support=0
iTCO_wdt: Intel TCO WatchDog Timer Driver v1.06
iTCO_wdt: Found a H57 TCO device (Version=2, TCOBASE=0x0860)
iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
sd 0:0:0:0: Attached scsi generic sg0 type 0
sr 1:0:0:0: Attached scsi generic sg1 type 5
input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0
ACPI: Power Button [PWRB]
input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
ACPI: Power Button [PWRF]
firewire_ohci: Added fw-ohci device 0000:04:01.4, OHCI v1.10, 4 IR + 8 IT contexts, quirks 0x1
i801_smbus 0000:00:1f.3: PCI INT C -> GSI 18 (level, low) -> IRQ 18
HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
HDA Intel 0000:00:1b.0: irq 40 for MSI/MSI-X
HDA Intel 0000:00:1b.0: setting latency timer to 64
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
hda_codec: ALC887: BIOS auto-probing.
input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input2
shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
HDA Intel 0000:01:00.1: PCI INT A -> GSI 16 (level, low) -> IRQ 16
hda_intel: Disable MSI for Nvidia chipset
HDA Intel 0000:01:00.1: setting latency timer to 64
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
ehci_hcd 0000:00:1a.0: setting latency timer to 64
ehci_hcd 0000:00:1a.0: EHCI Host Controller
ehci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:1a.0: debug port 2
ehci_hcd 0000:00:1a.0: cache line size of 32 is not supported
ehci_hcd 0000:00:1a.0: irq 16, io mem 0xf9ffc000
ehci_hcd 0000:00:1a.0: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ehci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23
ehci_hcd 0000:00:1d.0: setting latency timer to 64
ehci_hcd 0000:00:1d.0: EHCI Host Controller
ehci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
ehci_hcd 0000:00:1d.0: debug port 2
ehci_hcd 0000:00:1d.0: cache line size of 32 is not supported
ehci_hcd 0000:00:1d.0: irq 23, io mem 0xf9ff6000
ehci_hcd 0000:00:1d.0: USB 2.0 started, EHCI 1.00
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ehci_hcd 0000:04:01.3: PCI INT A -> GSI 22 (level, low) -> IRQ 22
ehci_hcd 0000:04:01.3: EHCI Host Controller
ehci_hcd 0000:04:01.3: new USB bus registered, assigned bus number 3
ehci_hcd 0000:04:01.3: debug port 1
ehci_hcd 0000:04:01.3: irq 22, io mem 0xfbffcc00
ehci_hcd 0000:04:01.3: USB 2.0 started, EHCI 1.00
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 6 ports detected
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
ohci_hcd 0000:04:01.0: PCI INT B -> GSI 21 (level, low) -> IRQ 21
ohci_hcd 0000:04:01.0: OHCI Host Controller
ohci_hcd 0000:04:01.0: new USB bus registered, assigned bus number 4
ohci_hcd 0000:04:01.0: irq 21, io mem 0xfbfff000
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
ohci_hcd 0000:04:01.1: PCI INT B -> GSI 21 (level, low) -> IRQ 21
ohci_hcd 0000:04:01.1: OHCI Host Controller
ohci_hcd 0000:04:01.1: new USB bus registered, assigned bus number 5
ohci_hcd 0000:04:01.1: irq 21, io mem 0xfbffe000
hub 3-0:1.0: over-current change on port 1
firewire_core: created device fw0: GUID 0090e6390000057f, S400
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 2 ports detected
ohci_hcd 0000:04:01.2: PCI INT B -> GSI 21 (level, low) -> IRQ 21
ohci_hcd 0000:04:01.2: OHCI Host Controller
ohci_hcd 0000:04:01.2: new USB bus registered, assigned bus number 6
ohci_hcd 0000:04:01.2: irq 21, io mem 0xfbffd000
tg3.c:v3.113 (August 2, 2010)
tg3 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
tg3 0000:03:00.0: setting latency timer to 64
tg3 mdio bus: probed
hub 6-0:1.0: USB hub found
hub 6-0:1.0: 2 ports detected
hub 3-0:1.0: over-current change on port 2
tg3 0000:03:00.0: eth0: Tigon3 [partno(BCM57788) rev 57780001] (PCI Express) MAC address 00:25:64:f6:da:c0
tg3 0000:03:00.0: eth0: attached PHY driver [Broadcom BCM57780] (mii_bus:phy_addr=300:01)
tg3 0000:03:00.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
tg3 0000:03:00.0: eth0: dma_rwctrl[76180000] dma_mask[64-bit]
nvidia: module license 'NVIDIA' taints kernel.
Disabling lock debugging due to kernel taint
usb 1-1: new high speed USB device using ehci_hcd and address 2
hub 1-1:1.0: USB hub found
hub 1-1:1.0: 6 ports detected
usb 2-1: new high speed USB device using ehci_hcd and address 2
nvidia 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
nvidia 0000:01:00.0: setting latency timer to 64
vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=io+mem
NVRM: loading NVIDIA UNIX x86 Kernel Module  260.19.21  Thu Nov  4 20:24:24 PDT 2010
hub 2-1:1.0: USB hub found
hub 2-1:1.0: 8 ports detected
usb 1-1.1: new low speed USB device using ehci_hcd and address 3
usb 1-1.2: new low speed USB device using ehci_hcd and address 4
usbcore: registered new interface driver hiddev
input: Logitech USB RECEIVER as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1:1.0/input/input3
generic-usb 0003:046D:C50E.0001: input,hidraw0: USB HID v1.11 Mouse [Logitech USB RECEIVER] on usb-0000:00:1a.0-1.1/input0
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
input: Chicony USB Gaming Keyboard Pro as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/input/input4
generic-usb 0003:06A3:8000.0002: input,hidraw1: USB HID v1.11 Keyboard [Chicony USB Gaming Keyboard Pro] on usb-0000:00:1a.0-1.2/input0
input: Chicony USB Gaming Keyboard Pro as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.1/input/input5
generic-usb 0003:06A3:8000.0003: input,hiddev0,hidraw2: USB HID v1.11 Device [Chicony USB Gaming Keyboard Pro] on usb-0000:00:1a.0-1.2/input1
input: Chicony USB Gaming Keyboard Pro as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.2/input/input6
generic-usb 0003:06A3:8000.0004: input,hidraw3: USB HID v1.11 Gamepad [Chicony USB Gaming Keyboard Pro] on usb-0000:00:1a.0-1.2/input2
usb 1-1.3: new high speed USB device using ehci_hcd and address 5
Initializing USB Mass Storage driver...
scsi4 : usb-storage 1-1.3:1.0
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usb 1-1.4: new full speed USB device using ehci_hcd and address 6
input: Saitek Cyborg Evo Force as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/input/input7
generic-usb 0003:06A3:FFB5.0005: input,hidraw4: USB HID v1.00 Joystick [Saitek Cyborg Evo Force] on usb-0000:00:1a.0-1.4/input0
usb 2-1.2: new high speed USB device using ehci_hcd and address 3
scsi5 : usb-storage 2-1.2:1.0
usb 2-1.4: new full speed USB device using ehci_hcd and address 4
usb 2-1.4: device descriptor read/64, error -32
usb 2-1.4: device descriptor read/64, error -32
usb 2-1.4: new full speed USB device using ehci_hcd and address 5
usb 2-1.4: device descriptor read/64, error -32
scsi 4:0:0:0: Direct-Access     WD       10EACS External  1.65 PQ: 0 ANSI: 0
sd 4:0:0:0: Attached scsi generic sg2 type 0
sd 4:0:0:0: [sdb] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB)
sd 4:0:0:0: [sdb] Write Protect is off
sd 4:0:0:0: [sdb] Mode Sense: 00 00 00 00
sd 4:0:0:0: [sdb] Assuming drive cache: write through
sd 4:0:0:0: [sdb] Assuming drive cache: write through
usb 2-1.4: device descriptor read/64, error -32
usb 2-1.4: new full speed USB device using ehci_hcd and address 6
usb 2-1.4: device descriptor read/8, error -32
scsi 5:0:0:0: Direct-Access     Generic- SD/MMC           1.00 PQ: 0 ANSI: 0
sd 5:0:0:0: Attached scsi generic sg3 type 0
scsi 5:0:0:1: Direct-Access     Generic- Compact Flash    1.01 PQ: 0 ANSI: 0
sd 5:0:0:1: Attached scsi generic sg4 type 0
sd 5:0:0:0: [sdc] Attached SCSI removable disk
scsi 5:0:0:2: Direct-Access     Generic- SM/xD Picture    1.02 PQ: 0 ANSI: 0
sd 5:0:0:1: [sdd] Attached SCSI removable disk
sd 5:0:0:2: Attached scsi generic sg5 type 0
scsi 5:0:0:3: Direct-Access     Generic- MS/MS-Pro        1.03 PQ: 0 ANSI: 0
sd 5:0:0:2: [sde] Attached SCSI removable disk
sd 5:0:0:3: Attached scsi generic sg6 type 0
sd 5:0:0:3: [sdf] Attached SCSI removable disk
usb 2-1.4: device descriptor read/8, error -32
usb 2-1.4: new full speed USB device using ehci_hcd and address 7
usb 2-1.4: device descriptor read/8, error -32
usb 2-1.4: device descriptor read/8, error -32
hub 2-1:1.0: unable to enumerate USB device on port 4
EXT4-fs (sda2): re-mounted. Opts: (null)
 sdb: sdb1
sd 4:0:0:0: [sdb] Assuming drive cache: write through
sd 4:0:0:0: [sdb] Attached SCSI disk
EXT4-fs (sda2): re-mounted. Opts: (null)
EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)
EXT4-fs (sda6): mounted filesystem with ordered data mode. Opts: (null)
fuse init (API version 7.15)
Adding 497976k swap on /dev/sda5.  Priority:-1 extents:1 across:497976k 
tg3 0000:03:00.0: irq 41 for MSI/MSI-X
tg3 0000:03:00.0: eth0: Link is down
tg3 0000:03:00.0: eth0: Link is up at 100 Mbps, full duplex
tg3 0000:03:00.0: eth0: Flow control is off for TX and off for RX
NTFS driver 2.1.29 [Flags: R/W MODULE].
start_kdeinit (4890): /proc/4890/oom_adj is deprecated, please use /proc/4890/oom_score_adj instead.
ata1.00: configured for UDMA/133
ata1: EH complete
EXT4-fs (sda2): re-mounted. Opts: commit=0
EXT4-fs (sda3): re-mounted. Opts: commit=0
EXT4-fs (sda6): re-mounted. Opts: commit=0
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
eth0: no IPv6 routers present
lo: Disabled Privacy Extensions
lo: Disabled Privacy Extensions
lo: Disabled Privacy Extensions
lo: Disabled Privacy Extensions
usb 3-6: new high speed USB device using ehci_hcd and address 2
scsi6 : usb-storage 3-6:1.0
scsi 6:0:0:0: Direct-Access     HTC      Android Phone    0100 PQ: 0 ANSI: 2
sd 6:0:0:0: Attached scsi generic sg7 type 0
sd 6:0:0:0: [sdg] Attached SCSI removable disk
usb 3-6: USB disconnect, address 2
lo: Disabled Privacy Extensions
usb 3-6: new high speed USB device using ehci_hcd and address 3
scsi7 : usb-storage 3-6:1.0
scsi 7:0:0:0: Direct-Access     HTC      Android Phone    0100 PQ: 0 ANSI: 2
sd 7:0:0:0: Attached scsi generic sg7 type 0
sd 7:0:0:0: [sdg] Attached SCSI removable disk
lo: Disabled Privacy Extensions
warning: `VirtualBox' uses 32-bit capabilities (legacy support in use)
usb 3-6: USB disconnect, address 3
usb 3-6: new high speed USB device using ehci_hcd and address 4
scsi8 : usb-storage 3-6:1.0
scsi 8:0:0:0: Direct-Access     HTC      Android Phone    0100 PQ: 0 ANSI: 2
sd 8:0:0:0: Attached scsi generic sg7 type 0
sd 8:0:0:0: [sdg] Attached SCSI removable disk
sd 8:0:0:0: [sdg] 31116288 512-byte logical blocks: (15.9 GB/14.8 GiB)
sd 8:0:0:0: [sdg] Assuming drive cache: write through
sd 8:0:0:0: [sdg] Assuming drive cache: write through
 sdg: sdg1
sd 8:0:0:0: [sdg] 31116288 512-byte logical blocks: (15.9 GB/14.8 GiB)
sd 8:0:0:0: [sdg] Assuming drive cache: write through
sd 8:0:0:0: [sdg] Assuming drive cache: write through
 sdg: sdg1
usb 3-6: USB disconnect, address 4
usb 3-6: new high speed USB device using ehci_hcd and address 5
scsi9 : usb-storage 3-6:1.0
scsi 9:0:0:0: Direct-Access     HTC      Android Phone    0100 PQ: 0 ANSI: 2
sd 9:0:0:0: Attached scsi generic sg7 type 0
sd 9:0:0:0: [sdg] Attached SCSI removable disk
sd 9:0:0:0: [sdg] 31116288 512-byte logical blocks: (15.9 GB/14.8 GiB)
sd 9:0:0:0: [sdg] Assuming drive cache: write through
sd 9:0:0:0: [sdg] Assuming drive cache: write through
 sdg: sdg1
usb 3-6: USB disconnect, address 5
usb 3-6: new high speed USB device using ehci_hcd and address 6
scsi10 : usb-storage 3-6:1.0
scsi 10:0:0:0: Direct-Access     HTC      Android Phone    0100 PQ: 0 ANSI: 2
sd 10:0:0:0: Attached scsi generic sg7 type 0
sd 10:0:0:0: [sdg] Attached SCSI removable disk
sd 10:0:0:0: [sdg] 31116288 512-byte logical blocks: (15.9 GB/14.8 GiB)
sd 10:0:0:0: [sdg] Assuming drive cache: write through
sd 10:0:0:0: [sdg] Assuming drive cache: write through
 sdg: sdg1
lo: Disabled Privacy Extensions
lo: Disabled Privacy Extensions
lo: Disabled Privacy Extensions

And procinfo:

Memory:        Total        Used        Free     Buffers                       
RAM:         3090156     1977620     1112536      240668                       
Swap:         497976      187856      310120                                   

Bootup: Tue Nov 30 19:20:19 2010   Load average: 1.35 1.01 1.03 4/391 13342    

user  :      04:26:46.72   4.1%  page in :         35933303                    
nice  :      00:15:07.71   0.2%  page out:         29081942                    
system:      20:57:36.16  19.2%  page act:          2705421                    
IOwait:      00:34:42.25   0.5%  page dea:           661916                    
hw irq:      00:00:01.12   0.0%  page flt:        713282148                    
sw irq:      00:03:39.96   0.1%  swap in :             2439                    
idle  :   3d 10:53:48.02  75.9%  swap out:            47436                    
uptime:   1d 03:24:52.98         context :       5212702362                    

irq   0:        377  timer               irq  20:       1545  firewire_ohci    
irq   1:          2  i8042               irq  21:          0  ohci_hcd:usb4, oh
irq   8:        577  rtc0                irq  22:     333440  ehci_hcd:usb3    
irq   9: 2515576692  acpi                irq  23:    6500631  ehci_hcd:usb2    
irq  12:          4  i8042               irq  40:    5358110  hda_intel        
irq  16:    4663234  hda_intel, ehci_h   irq  41:   17781026  eth0             
irq  19:    1193701  ata_piix, ata_pii                                         

sda           432381r          314375w   sdd                0r               0w
sr0               23r               0w   sde                0r               0w
sdb            38743r           87624w   sdf                0r               0w
sdc                0r               0w   sdg              501r             261w

eth0        TX 2.73GiB       RX 13.43GiB      lo          TX 23.89MiB      RX 23.89MiB

Any help is appreciated!

Moderator Edit (ewaller) Added Code Tags.  Please use them in the future (edit your post to see how I applied them for you)

Last edited by ewaller (2011-05-25 16:27:49)

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#2 2010-12-01 22:05:51

SlodS
Member
Registered: 2007-03-21
Posts: 20

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

I had similiar problem with kworker few days ago but it didn't show up as increased CPU usage in top. Instead of this powertop was showing thousands wakeups for kworker, [Rescheduling interrupts] and [kernel scheduler] Load balancing tick. I've also noticed that CPU and GPU temperature were higher by ~40% than usual. So I've cleaned fans and checked if RAM is well seated. Maybe it was luck but one of these things helped and since then everything is OK on 2.6.36.
The mysterious part of this problem (if it was somehow caused by bad ventilation) is that it wasn't showing up when I had downgraded to 2.6.35 kernel.

Anyway I've found some references to kworker problem. You should check them for solutions:
https://bugzilla.kernel.org/show_bug.cgi?id=20232
https://bugzilla.kernel.org/show_bug.cgi?id=18802
https://bugs.launchpad.net/ubuntu/+sour … bug/595764 (keep in mind that kslowd has been superseded by kworker)

And remember: keep your equipment clean wink

Last edited by SlodS (2010-12-01 22:10:07)

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#3 2010-12-02 12:23:19

airstep
Member
Registered: 2008-01-21
Posts: 54

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

I'm also have problems with kworker. Also when I run Virtualbox I have more kwoker wakeups than when after system boot. Nothing helps for me by SlodS references. Anyway thank you SlodS...

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#4 2010-12-20 15:19:09

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,421

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

My problem with kworker starts after a few minutes after my netbook resumes form a tuxonice hibernation.
I've something like 1000+ wakeups from idle and drained power goes from 6.6 to about 7.7W.
this was on 2.6.36.1 kernel. any luck with newers?

Help me to improve ssh-rdp !
Retroarch User? Try my koko-aio shader !

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#5 2011-04-24 19:10:18

Andevellicus
Member
Registered: 2011-01-04
Posts: 2

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

I'm having the same issue. Kernel 2.6.38, on my ThinkPad T61.

I found that for whatever reason the problem started once I ran the WICD daemon. I uninstalled WICD and went with networkmanager, but as soon as I started the networkmanager daemon, kworker nuked my CPU again. Stopping WICD daemon, stopping networkmanager daemon, killing wicd, etc - none of that worked.

For the moment I uninstalled WICD and networkmanager and configure my wireless manually (which is a pain, but it works). The weird thing is that it just happened all of a sudden.

EDIT:
Went back to kernel 2.6.37 and I'm not having any more problems.

Last edited by Andevellicus (2011-04-25 15:19:58)

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#6 2011-05-10 17:45:08

jwhendy
Member
Registered: 2010-04-01
Posts: 621

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

Has there been any resolution to this? It's not 100% reproducible for me... unlike Andevellicus, I run wicd every day but don't always get this problem. It comes and goes. Once it comes, though, it seems like it doesn't go away. It seems to pretty much lock up cpu0 (I have an i7 with 8 cores). Cores #1-7 will be at their low end (933mhz) while core #0 will be at 1600. Conky shows kworker eating 12% of my cpu, which normally idles around 1-2%. See here for my post on that: LINK

Any resolution to this? I'm about to reboot and am confident that it will not be happening on reboot. But sometime in the next 1-2 weeks, it will happen again.

Fan constantly on, cpu usage high, core0 not coming down from the highest frequency.

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#7 2011-05-18 00:08:11

boris
Member
Registered: 2006-02-25
Posts: 20

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

append this to kernel line

pcie_ports=compat

that should resolve most problems with kworker and increase cpu usage.

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#8 2011-05-18 00:24:31

denisfalqueto
Member
From: ES, Brazil
Registered: 2006-03-24
Posts: 197

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

boris wrote:

append this to kernel line

pcie_ports=compat

that should resolve most problems with kworker and increase cpu usage.

I've done that and my usb ports stopped working. But pcie_ports=native solved both problems. You should try both options.

Satisfied users don't rant, so you'll never know how many of us there are.

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#9 2011-05-18 00:37:36

jwhendy
Member
Registered: 2010-04-01
Posts: 621

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

I'll try that if it returns. For some reason, it's very sporadic for me. Perhaps only once every 5-10 reboots. I haven't figured out what triggers the issue. I'm glad someone posted some tangible solutions, though. Thanks.

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#10 2011-05-18 17:52:27

akurei
Member
From: Bochum, NRW, Germany
Registered: 2009-05-25
Posts: 152
Website

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

denisfalqueto wrote:
boris wrote:

append this to kernel line

pcie_ports=compat

that should resolve most problems with kworker and increase cpu usage.

I've done that and my usb ports stopped working. But pcie_ports=native solved both problems. You should try both options.

pcie_ports=native worked! Thanks a lot!

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#11 2011-05-19 01:26:44

denisfalqueto
Member
From: ES, Brazil
Registered: 2006-03-24
Posts: 197

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

Great! Don't forget to mark this thread as solved.

Satisfied users don't rant, so you'll never know how many of us there are.

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#12 2011-05-19 03:37:12

jwhendy
Member
Registered: 2010-04-01
Posts: 621

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

Out of curiosity, could someone share how this solution was tracked down?

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#13 2011-05-19 15:33:27

akurei
Member
From: Bochum, NRW, Germany
Registered: 2009-05-25
Posts: 152
Website

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

I might have rushed it a little: It works for a short period after the boot, but then theres that nasty kworker thread again:

Cn                Avg residency       P-states (frequencies)
C0 (cpu running)        (51.7%)       Turbo Mode    51.7%
polling           0.0ms ( 0.0%)         2.27 Ghz     5.9%
C1 mwait          0.0ms ( 0.0%)         1.60 Ghz     7.8%
C2 mwait          0.2ms ( 5.7%)          800 Mhz    34.7%
C6 mwait          1.0ms (42.5%)

Wakeups-from-idle per second : 708.5    interval: 3.0s                                                                                                                   
Power usage (ACPI estimate): 15.6W (1.5 hours) (long term: 12.5W,/1.9h)

Top causes for wakeups:
  35.3% (604.0)   kworker/0:0
  33.5% (572.3)   [kernel scheduler] Load balancing tick
  15.9% (271.7)   [iwlagn] <interrupt>
   5.2% ( 89.3)   firefox
   5.1% ( 87.3)   [i915] <interrupt>
   1.9% ( 32.7)   kwin
   1.1% ( 19.3)   [acpi] <interrupt>
   0.4% (  6.0)   [ahci] <interrupt>
   0.3% (  5.7)   thunderbird-bin
   0.2% (  2.7)   plasma-desktop
   0.2% (  2.7)   htop
   0.1% (  2.3)   yakuake
   0.1% (  2.0)   mysqld
   0.1% (  1.7)   [kernel core] sk_reset_timer (tcp_delack_timer)
   0.1% (  1.7)   [kernel core] hrtimer_start (tick_sched_timer)
   0.1% (  1.0)   sleep
   0.1% (  1.0)   thinkwatt
   0.1% (  1.0)   X

Suggestion: Enable the CONFIG_INOTIFY kernel configuration option.
This option allows programs to wait for changes in files and directories
instead of having to poll for these changes

I used to have around 10 watts average, now it's up to 15 or sometimes even 20 watts.

Last edited by akurei (2011-05-19 15:37:00)

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#14 2011-05-19 16:41:26

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,421

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

@akurei: do you use hibernation?
I've had similar issue on resume from it, ad it was due to an xorg upgrade on intel gpu.
for the time being i'm stuck with xorg 1.9.0.
You may want to check this bug report:
https://bugs.freedesktop.org/show_bug.cgi?id=32647

Let me know!

Last edited by kokoko3k (2011-05-19 16:42:12)

Help me to improve ssh-rdp !
Retroarch User? Try my koko-aio shader !

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#15 2011-05-23 16:44:19

akurei
Member
From: Bochum, NRW, Germany
Registered: 2009-05-25
Posts: 152
Website

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

I am not using suspend2disk, only suspend2ram. I am using an Intel GPU though.

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#16 2011-05-23 17:11:29

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,421

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

Maybe it is worth to try with xorg 1.9.0.
If you want, i can provide binaries.

Help me to improve ssh-rdp !
Retroarch User? Try my koko-aio shader !

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#17 2011-05-23 18:18:19

akurei
Member
From: Bochum, NRW, Germany
Registered: 2009-05-25
Posts: 152
Website

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

Do you think it's worth the effort to test if it runs fine when I switch my GPU to the ATI Radeon device (I have switchable graphics)?

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#18 2011-05-25 07:51:28

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,421

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

I've had experiences only with nvidia and intel, and the 'bug' happens on intel hardware, so i can't say much about ati.

Anyway, those are the packages needed to downgrade to xorg-server-1.9.0
http://wpage.unina.it/aorefice/sharevari/xorg190/
I've uploaded the intel driver too, but it is not needed, as i'm using xorg19+xf86-video-intel-2.14 without problems.

Ah, as a side note, i noticed that doing "alsactl -restore 0" on wakeup (from s2disk and s2ram also) saves 0.25W, at least with Realtek ALC269 and snd_hda_* modules)

Help me to improve ssh-rdp !
Retroarch User? Try my koko-aio shader !

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#19 2011-06-26 07:41:58

Markus00000
Member
Registered: 2011-03-27
Posts: 323

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

I have installed both 32-bit and 64-bit Arch and kworker craziness happens only with the 64-bit version. 32-bit runs flawlessly.

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#20 2011-06-26 14:21:49

jwhendy
Member
Registered: 2010-04-01
Posts: 621

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

This seemed to have gone away for me for a while, but it's definitely back and seems to occur after 2-3 pm-suspend/resume operations. Is there anything I can collect that might help? (modules at boot vs. lsmod after resume? same for ps ax or something else?) I'm up to date with pacman as of yesterday.

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#21 2011-07-03 20:34:14

b4d
Member
From: Slovenia
Registered: 2008-07-06
Posts: 62
Website

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

Same thing here, after suspend hmm

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#22 2011-07-16 06:43:16

positron
Member
From: Eindhoven, Netherlands
Registered: 2010-12-23
Posts: 2

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

Hi

The same problem here also, with 2.6.39-Arch and solved adding pcie_ports=native to boot line.

Thanks a lot

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#23 2011-07-17 16:53:13

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,421

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

@positron: Did you had the wakeup issue after resuming from ram/disk ?
What's your hardware?

Thanks

Help me to improve ssh-rdp !
Retroarch User? Try my koko-aio shader !

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#24 2011-07-18 22:29:32

lexan
Member
Registered: 2011-06-15
Posts: 45

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

positron wrote:

Hi

The same problem here also, with 2.6.39-Arch and solved adding pcie_ports=native to boot line.

Thanks a lot

Where is the pcie_ports line?

Edit: Found it. Just adding it to the kernel line in menu.lst
Niether compat nor native work for me. And my usb ports have stopped working as well.

Edit2: I've noticed that when I plug in my usb mouse or a usb drive, kworker starts using 90+% of CPU. If I don't mess with the usb ports, my CPU processes seem normal.

Last edited by lexan (2011-07-18 23:35:11)

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#25 2011-07-19 07:31:32

Markus00000
Member
Registered: 2011-03-27
Posts: 323

Re: kworker constantly using 15/20% of CPU since upgrade to 2.6.36-ARCH

After connecting any USB devices I need to execute this little script to stop the CPU load caused by kworker:

#!/bin/sh
sudo rmmod ehci_hcd
sudo modprobe ehci_hcd

Afterwards my USB devices are working.

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