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#1
LQ Newbie
Registered: Sep 2012
Posts: 1
Rep:
High CPU load by kworker
Lenovo IdeaPad Y560p. I have Ubuntu 12.04 with 3.2.0-30-generic kernel. I've tried all the kernels for the year. I've tried 3.4.0 kernel too. No results.
top
Code:
top - 11:13:26 up 7 min, 2 users, load average: 0.14, 0.29, 0.15
Tasks: 161 total, 2 running, 159 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.4%us, 3.9%sy, 0.0%ni, 95.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 6094152k total, 939540k used, 5154612k free, 36532k buffers
Swap: 6270972k total, 0k used, 6270972k free, 344800k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
11 root 20 0 0 0 0 R 35 0.0 1:11.52 kworker/0:1
1106 root 20 0 301m 75m 49m S 2 1.3 0:04.78 Xorg
3154 st1 20 0 497m 30m 21m S 2 0.5 0:00.82 konsole
179 root 20 0 0 0 0 S 0 0.0 0:00.24 kworker/2:1
2847 st1 20 0 682m 48m 34m S 0 0.8 0:00.85 kwin
1 root 20 0 24444 2416 1380 S 0 0.0 0:01.30 init
2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd
3 root 20 0 0 0 0 S 0 0.0 0:00.00 ksoftirqd/0
6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
7 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/0
8 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1
9 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/1:0
10 root 20 0 0 0 0 S 0 0.0 0:00.00 ksoftirqd/1
12 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/1
13 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/2
14 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/2:0
15 root 20 0 0 0 0 S 0 0.0 0:00.00 ksoftirqd/2
...
dmesg | grep ACPI
Code:
[ 0.000000] BIOS-e820: 00000000c7470000 - 00000000c74f1000 (ACPI NVS)
[ 0.000000] BIOS-e820: 00000000c7780000 - 00000000c779f000 (ACPI NVS)
[ 0.000000] BIOS-e820: 00000000c77e1000 - 00000000c77ff000 (ACPI data)
[ 0.000000] ACPI: RSDP 00000000000f6f70 00024 (v02 PTLTD )
[ 0.000000] ACPI: XSDT 00000000c77f1e3a 0006C (v01 LENOVO CB-01 06040000 LTP 00000000)
[ 0.000000] ACPI: FACP 00000000c77e3000 000F4 (v03 LENOVO CB-01 06040000 PTEC 00000001)
[ 0.000000] ACPI: DSDT 00000000c77e4000 0BC8C (v02 LENOVO CB-01 06040000 INTL 20060912)
[ 0.000000] ACPI: FACS 00000000c779cfc0 00040
[ 0.000000] ACPI: SSDT 00000000c77fdb62 01068 (v01 LENOVO CB-01 06040000 INTL 20060912)
[ 0.000000] ACPI: HPET 00000000c77fed32 00038 (v01 LENOVO CB-01 06040000 PTEC 00000001)
[ 0.000000] ACPI: MCFG 00000000c77fed6a 0003C (v01 LENOVO CB-01 06040000 PTEC 00000001)
[ 0.000000] ACPI: APIC 00000000c77feda6 000BC (v01 LENOVO CB-01 06040000 LTP 00000000)
[ 0.000000] ACPI: BOOT 00000000c77fee62 00028 (v01 LENOVO CB-01 06040000 LTP 00000001)
[ 0.000000] ACPI: SLIC 00000000c77fee8a 00176 (v01 LENOVO CB-01 06040000 LTP 00000000)
[ 0.000000] ACPI: SSDT 00000000c77e2000 0090C (v01 PmRef Cpu0Ist 00003000 INTL 20060912)
[ 0.000000] ACPI: SSDT 00000000c77e1000 00996 (v01 PmRef CpuPm 00003000 INTL 20060912)
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: PM-Timer IO Port: 0x408
[ 0.000000] ACPI: Local APIC address 0xfee00000
[ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x02] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x04] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x06] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x01] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x03] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x05] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x07] enabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x05] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x06] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x07] high edge lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 high edge)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] ACPI: IRQ0 used by override.
[ 0.000000] ACPI: IRQ2 used by override.
[ 0.000000] ACPI: IRQ9 used by override.
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] ACPI: HPET id: 0x8086a701 base: 0xfed00000
[ 0.006587] ACPI: Core revision 20110623
[ 0.946649] PM: Registering ACPI NVS region at c7470000 (528384 bytes)
[ 0.946659] PM: Registering ACPI NVS region at c7780000 (126976 bytes)
[ 0.947663] ACPI: bus type pci registered
[ 0.948726] ACPI: Added _OSI(Module Device)
[ 0.948728] ACPI: Added _OSI(Processor Device)
[ 0.948729] ACPI: Added _OSI(3.0 _SCP Extensions)
[ 0.948731] ACPI: Added _OSI(Processor Aggregator Device)
[ 0.950820] ACPI: EC: Look up EC in DSDT
[ 0.952923] ACPI: Executed 1 blocks of module-level executable AML code
[ 0.956780] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 0.957196] ACPI: SSDT 00000000c7719718 0067C (v01 PmRef Cpu0Cst 00003001 INTL 20060912)
[ 0.957730] ACPI: Dynamic OEM Table Load:
[ 0.957733] ACPI: SSDT (null) 0067C (v01 PmRef Cpu0Cst 00003001 INTL 20060912)
[ 0.984279] ACPI: SSDT 00000000c771aa98 00303 (v01 PmRef ApIst 00003000 INTL 20060912)
[ 0.984848] ACPI: Dynamic OEM Table Load:
[ 0.984851] ACPI: SSDT (null) 00303 (v01 PmRef ApIst 00003000 INTL 20060912)
[ 1.008107] ACPI: SSDT 00000000c7718d98 00119 (v01 PmRef ApCst 00003000 INTL 20060912)
[ 1.008643] ACPI: Dynamic OEM Table Load:
[ 1.008645] ACPI: SSDT (null) 00119 (v01 PmRef ApCst 00003000 INTL 20060912)
[ 1.193430] ACPI: Interpreter enabled
[ 1.193437] ACPI: (supports S0 S1 S3 S4 S5)
[ 1.193467] ACPI: Using IOAPIC for interrupt routing
[ 1.193880] PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in ACPI motherboard resources
[ 1.281022] ACPI: EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62
[ 1.281251] ACPI: No dock devices found.
[ 1.281256] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
[ 1.281561] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-3e])
[ 1.323985] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
[ 1.324125] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P2._PRT]
[ 1.324185] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP01._PRT]
[ 1.324221] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP02._PRT]
[ 1.324258] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP04._PRT]
[ 1.324296] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP07._PRT]
[ 1.324372] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEG0._PRT]
[ 1.324455] pci0000:00: Requesting ACPI _OSC control (0x1d)
[ 1.324493] pci0000:00: ACPI _OSC request failed (AE_ERROR), returned control mask: 0x1d
[ 1.324495] ACPI _OSC control for PCIe not granted, disabling ASPM
[ 1.328117] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 7 10 *11 12 14 15)
[ 1.328170] ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 6 7 *10 11 12 14 15)
[ 1.328221] ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 *5 6 7 10 11 12 14 15)
[ 1.328272] ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 7 *10 11 12 14 15)
[ 1.328320] ACPI: PCI Interrupt Link [LNKE] (IRQs 1 3 4 5 6 7 10 11 12 14 15) *0, disabled.
[ 1.328369] ACPI: PCI Interrupt Link [LNKF] (IRQs 1 3 4 5 6 7 10 11 12 14 15) *0, disabled.
[ 1.328416] ACPI: PCI Interrupt Link [LNKG] (IRQs 1 3 4 5 6 *7 10 11 12 14 15)
[ 1.328462] ACPI: PCI Interrupt Link [LNKH] (IRQs 1 3 4 5 6 7 10 *11 12 14 15)
[ 1.328919] PCI: Using ACPI for IRQ routing
[ 1.344287] pnp: PnP ACPI init
[ 1.344300] ACPI: bus type pnp registered
[ 1.344699] pnp 00:00: Plug and Play ACPI device, IDs PNP0a08 PNP0a03 (active)
[ 1.344758] pnp 00:01: Plug and Play ACPI device, IDs PNP0200 (active)
[ 1.344788] pnp 00:02: Plug and Play ACPI device, IDs INT0800 (active)
[ 1.344888] pnp 00:03: Plug and Play ACPI device, IDs PNP0103 (active)
[ 1.344930] pnp 00:04: Plug and Play ACPI device, IDs PNP0c04 (active)
[ 1.345035] system 00:05: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 1.345069] pnp 00:06: Plug and Play ACPI device, IDs PNP0b00 (active)
[ 1.345135] system 00:07: Plug and Play ACPI device, IDs INT3f0d PNP0c02 (active)
[ 1.345194] pnp 00:08: Plug and Play ACPI device, IDs PNP0303 (active)
[ 1.345257] pnp 00:09: Plug and Play ACPI device, IDs SYN1044 SYN1000 SYN0002 PNP0f13 (active)
[ 1.345475] system 00:0a: Plug and Play ACPI device, IDs PNP0c02 (active)
[ 1.345999] pnp: PnP ACPI: found 11 devices
[ 1.346001] ACPI: ACPI bus type pnp unregistered
[ 1.406223] ACPI: Deprecated procfs I/F for AC is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared
[ 1.406521] ACPI: AC Adapter [ACAD] (on-line)
[ 1.407141] ACPI: Lid Switch [LID]
[ 1.407200] ACPI: Power Button [PWRB]
[ 1.407239] ACPI: Sleep Button [SLPB]
[ 1.407279] ACPI: Power Button [PWRF]
[ 1.416466] ACPI: Thermal Zone [TZ00] (59 C)
[ 1.416490] ACPI: Deprecated procfs I/F for battery is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared
[ 1.416497] ACPI: Battery Slot [BAT1] (battery present)
[ 1.633406] ACPI: Battery Slot [BAT1] (battery present)
[ 2.771019] ACPI: Video Device [VGA] (multi-head: yes rom: no post: no)
I look many int9 (IO-APIC-fasteoi acpi) interruptions.
The problem is solved in two ways:
1 "echo disable > /sys/firmware/acpi/interrupts/gpe18"
2 acpi=off in grub
Any ideas?
#2
Senior Member
Registered: Apr 2009
Posts: 1,756
Rep:
Kworker is what controls the ACPI wakeup signals from the BIOS.
#3
LQ Newbie
Registered: Oct 2012
Posts: 1
Rep:
I also have the Lenovo Y560p with the same issue but the problem is now solved.
#4
LQ Newbie
Registered: Oct 2014
Posts: 2
Rep:
[solved] for me
Based on this advice,
http://osdir.com/ml/ubuntu-bugs/2013-08/msg09026.html
I did the following:
1) Edited /boot/config-{kernversion}-server (on mine right now this
is 3.13.0-24-generic); commented out ONE line with IPMI and watchdog in it.
2) I deleted /lib/modules/3.13.0-24-generic/kernel/drivers/char/ipmi/ipmi_watchdog.ko (earlier I made backup of this file)
acpi=noirq was not necessary in my case.
I know this topic is old, but it still comes up in Google, soo... maby it will help someone.
Last edited by Lukasz_Cholewa; 10-10-2014 at 08:37 AM .
Reason: Old solution was to radical - lost battery manager and screen switching
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High CPU load by kworker
