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-   -   Bug#627957: linux-image-2.6.38-2-amd64: kworker consumes 40-70% of the other processor (http://www.linux-archive.org/debian-kernel/530679-bug-627957-linux-image-2-6-38-2-amd64-kworker-consumes-40-70-other-processor.html)

Perttu Muurimäki 05-25-2011 08:42 PM

Bug#627957: linux-image-2.6.38-2-amd64: kworker consumes 40-70% of the other processor
 
Package: linux-2.6
Version: 2.6.38-5
Severity: important


Kworker processes consume more than half (on avarage)
of the other processor. Using the machine is quirky since it takes
0.5-1 second pauses all the time. When typing normally I keep
loosing keypresses.

I googled around and found this tip that I should use boot option
pcie_ports=compat or pcie_ports=native. Neither worked. If either is
used the machine
refuses to boot altogether and sends only the following error message:

Alloc magic broken at 0x7ec2c2a0.

The problem first occured the day before yesterday after my regular
apt-get dist-upgrade excercise.

-- oPackage-specific info:
** Version:
Linux version 2.6.38-2-amd64 (Debian 2.6.38-5) (ben@decadent.org.uk) (gcc version 4.4.6 (Debian 4.4.6-3) ) #1 SMP Sun May 8 13:51:57 UTC 2011

** Command line:
BOOT_IMAGE=/vmlinuz-2.6.38-2-amd64 root=/dev/mapper/System-Root ro quiet

** Tainted: O (4096)
* Out-of-tree module has been loaded.

** Kernel log:
[ 14.379487] [drm] nouveau 0000:01:00.0: 2: memory 600MHz core 400MHz shader 800MHz voltage 1200mV fanspeed 100%
[ 14.379505] [drm] nouveau 0000:01:00.0: c: memory 302MHz core 275MHz shader 550MHz voltage 1150mV
[ 14.379588] [TTM] Zone kernel: Available graphics memory: 1021884 kiB.
[ 14.379590] [TTM] Initializing pool allocator.
[ 14.379604] [drm] nouveau 0000:01:00.0: Detected 128MiB VRAM
[ 14.399323] [drm] nouveau 0000:01:00.0: 512 MiB GART (aperture)
[ 14.407293] Bluetooth: Core ver 2.15
[ 14.407314] NET: Registered protocol family 31
[ 14.407316] Bluetooth: HCI device and connection manager initialized
[ 14.407318] Bluetooth: HCI socket layer initialized
[ 14.432326] [drm] nouveau 0000:01:00.0: DCB encoder 1 unknown
[ 14.432329] [drm] nouveau 0000:01:00.0: TV-1 has no encoders, removing
[ 14.432973] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 14.432975] [drm] No driver support for vblank timestamp query.
[ 14.439689] [drm] nouveau 0000:01:00.0: ACPI backlight interface available, not registering our own
[ 14.556716] Bluetooth: Generic Bluetooth USB driver ver 0.6
[ 14.556872] usbcore: registered new interface driver btusb
[ 14.592834] [drm] nouveau 0000:01:00.0: allocated 1680x1050 fb: 0x60000000, bo ffff88007a72e400
[ 14.592902] fbcon: nouveaufb (fb0) is primary device
[ 14.600936] Console: switching to colour frame buffer device 210x65
[ 14.604938] fb0: nouveaufb frame buffer device
[ 14.604939] drm: registered panic notifier
[ 14.605215] [drm] Initialized nouveau 0.0.16 20090420 for 0000:01:00.0 on minor 0
[ 14.621927] ieee80211 phy0: Selected rate control algorithm 'iwl-3945-rs'
[ 14.730140] thinkpad_acpi: ThinkPad ACPI Extras v0.24
[ 14.730143] thinkpad_acpi: http://ibm-acpi.sf.net/
[ 14.730145] thinkpad_acpi: ThinkPad BIOS 7LET51WW (1.21 ), EC 7KHT22WW-1.06
[ 14.730147] thinkpad_acpi: Lenovo ThinkPad T61, model 64576DG
[ 14.730882] thinkpad_acpi: detected a 8-level brightness capable ThinkPad
[ 14.731565] thinkpad_acpi: ACPI backlight control delay disabled
[ 14.731714] thinkpad_acpi: radio switch found; radios are enabled
[ 14.735076] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
[ 14.735861] Registered led device: tpacpi::thinklight
[ 14.736248] Registered led device: tpacpi::power
[ 14.736280] Registered led device: tpacpi::standby
[ 14.736303] Registered led device: tpacpi::thinkvantage
[ 14.738515] thinkpad_acpi: Standard ACPI backlight interface available, not loading native one.
[ 14.739107] thinkpad_acpi: Console audio control enabled, mode: monitor (read only)
[ 14.740499] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input7
[ 14.802302] HDA Intel 0000:00:1b.0: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 14.802306] hda_intel: probe_mask set to 0x1 for device 17aa:20ac
[ 14.802370] HDA Intel 0000:00:1b.0: irq 48 for MSI/MSI-X
[ 14.802404] HDA Intel 0000:00:1b.0: setting latency timer to 64
[ 15.222626] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input8
[ 16.929924] EXT4-fs (dm-1): re-mounted. Opts: (null)
[ 17.121821] EXT4-fs (dm-1): re-mounted. Opts: errors=remount-ro
[ 17.373153] loop: module loaded
[ 17.827885] Adding 2928636k swap on /dev/mapper/System-Swap. Priority:-1 extents:1 across:2928636k
[ 18.214556] EXT4-fs (dm-3): mounted filesystem with ordered data mode. Opts: (null)
[ 18.245796] EXT4-fs (dm-2): mounted filesystem with ordered data mode. Opts: (null)
[ 19.070518] IBM TrackPoint firmware: 0x0e, buttons: 3/3
[ 19.289276] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio2/input/input9
[ 19.955231] RPC: Registered udp transport module.
[ 19.955234] RPC: Registered tcp transport module.
[ 19.955235] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 20.122134] FS-Cache: Loaded
[ 20.567436] FS-Cache: Netfs 'nfs' registered for caching
[ 20.672316] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[ 20.764250] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
[ 20.820118] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
[ 20.820470] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 23.128720] fuse init (API version 7.16)
[ 24.063178] Disabling lock debugging due to kernel taint
[ 24.088131] vboxdrv: Found 2 processor cores.
[ 24.088401] vboxdrv: fAsync=1 offMin=0x11edaa offMax=0x11edaa
[ 24.088875] vboxdrv: TSC mode is 'asynchronous', kernel timer mode is 'normal'.
[ 24.088878] vboxdrv: Successfully loaded version 4.0.4_OSE (interface 0x00160000).
[ 26.806709] input: ACPI Virtual Keyboard Device as /devices/virtual/input/input10
[ 31.924909] Bluetooth: L2CAP ver 2.15
[ 31.924911] Bluetooth: L2CAP socket layer initialized
[ 31.950057] Bluetooth: RFCOMM TTY layer initialized
[ 31.950062] Bluetooth: RFCOMM socket layer initialized
[ 31.950064] Bluetooth: RFCOMM ver 1.11
[ 31.974941] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 31.974943] Bluetooth: BNEP filters: protocol multicast
[ 32.006203] Bluetooth: SCO (Voice Link) ver 0.6
[ 32.006205] Bluetooth: SCO socket layer initialized
[ 32.782013] lp: driver loaded but no devices found
[ 34.816529] ppdev: user-space parallel port driver
[ 40.811119] thinkpad_acpi: setting the hotkey mask to 0x00ffffff is likely not the best way to go about it
[ 40.811123] thinkpad_acpi: please consider using the driver defaults, and refer to up-to-date thinkpad-acpi documentation
[ 47.673461] sshd (2016): /proc/2016/oom_adj is deprecated, please use /proc/2016/oom_score_adj instead.
[ 55.056603] iwl3945 0000:03:00.0: loaded firmware version 15.32.2.9
[ 55.124268] iwl3945 0000:03:00.0: Error setting Tx power (-5).
[ 55.129115] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 71.773981] iwl3945 0000:03:00.0: Error setting Tx power (-5).
[ 71.776004] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 76.956248] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
[ 77.012103] e1000e 0000:00:19.0: irq 46 for MSI/MSI-X
[ 77.012578] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 79.715064] iwl3945 0000:03:00.0: Error setting Tx power (-5).
[ 79.716597] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 87.385050] wlan0: authenticate with 48:5b:39:cd:06:38 (try 1)
[ 87.386856] wlan0: authenticated
[ 87.388101] wlan0: associate with 48:5b:39:cd:06:38 (try 1)
[ 87.390769] wlan0: RX AssocResp from 48:5b:39:cd:06:38 (capab=0x411 status=0 aid=3)
[ 87.390773] wlan0: associated
[ 87.392367] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 97.568016] wlan0: no IPv6 routers present
[ 1674.896071] CE: hpet increased min_delta_ns to 20113 nsec

** Model information
sys_vendor: LENOVO
product_name: 64576DG
product_version: ThinkPad T61
chassis_vendor: LENOVO
chassis_version: Not Available
bios_vendor: LENOVO
bios_version: 7LET51WW (1.21 )
board_vendor: LENOVO
board_name: 64576DG
board_version: Not Available

** Loaded modules:
Module Size Used by
acpi_cpufreq 12849 1
mperf 12411 1 acpi_cpufreq
cpufreq_conservative 13878 0
cpufreq_userspace 12576 0
cpufreq_stats 12713 0
cpufreq_powersave 12454 0
parport_pc 22191 0
ppdev 12725 0
lp 17190 0
parport 31650 3 parport_pc,ppdev,lp
sco 17555 2
bnep 17424 2
rfcomm 32744 8
l2cap 40163 16 bnep,rfcomm
vboxnetadp 13143 0
vboxnetflt 24179 0
vboxdrv 171737 2 vboxnetadp,vboxnetflt
uinput 17392 1
fuse 61520 1
nfsd 258504 2
exportfs 12591 1 nfsd
nfs 250037 0
lockd 70844 2 nfsd,nfs
fscache 36071 1 nfs
nfs_acl 12511 2 nfsd,nfs
auth_rpcgss 36692 2 nfsd,nfs
sunrpc 162075 6 nfsd,nfs,lockd,nfs_acl,auth_rpcgss
ext2 62796 1
loop 22515 0
firewire_sbp2 17825 0
snd_hda_codec_analog 77712 1
snd_hda_intel 25946 2
snd_hda_codec 67647 2 snd_hda_codec_analog,snd_hda_intel
snd_hwdep 13148 1 snd_hda_codec
snd_pcm_oss 40662 0
snd_mixer_oss 17905 1 snd_pcm_oss
thinkpad_acpi 60656 0
snd_pcm 67327 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_seq_midi 12848 0
snd_rawmidi 22963 1 snd_seq_midi
arc4 12458 2
btusb 17417 2
bluetooth 55503 9 sco,bnep,rfcomm,l2cap,btusb
nouveau 506405 2
ttm 52155 1 nouveau
drm_kms_helper 26893 1 nouveau
joydev 17138 0
ecb 12737 2
snd_seq_midi_event 13316 1 snd_seq_midi
drm 165567 4 nouveau,ttm,drm_kms_helper
iwl3945 55447 0
iwlcore 59776 1 iwl3945
r852 17768 0
snd_seq 44678 2 snd_seq_midi,snd_seq_midi_event
i2c_algo_bit 12834 1 nouveau
tpm_tis 13125 0
snd_timer 22658 2 snd_pcm,snd_seq
sm_common 16450 1 r852
snd_seq_device 13155 3 snd_seq_midi,snd_rawmidi,snd_seq
i2c_i801 16870 0
pcmcia 32719 0
pcspkr 12579 0
tpm 17756 1 tpm_tis
mac80211 180997 2 iwl3945,iwlcore
psmouse 55199 0
nand 44212 2 r852,sm_common
snd 52280 16 snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,s nd_hwdep,snd_pcm_oss,snd_mixer_oss,thinkpad_acpi,s nd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_devic e
tpm_bios 12903 1 tpm
nvram 12997 1 thinkpad_acpi
i2c_core 23725 5 nouveau,drm_kms_helper,drm,i2c_algo_bit,i2c_i801
nand_ids 12313 1 nand
nand_ecc 12444 1 nand
mtd 19278 2 sm_common,nand
cfg80211 126017 3 iwl3945,iwlcore,mac80211
rfkill 19014 4 thinkpad_acpi,bluetooth,cfg80211
yenta_socket 22601 0
battery 13109 0
ac 12624 0
pcmcia_rsrc 17483 1 yenta_socket
power_supply 13475 3 nouveau,battery,ac
pcmcia_core 18333 3 pcmcia,yenta_socket,pcmcia_rsrc
evdev 17475 15
soundcore 13014 1 snd
wmi 13202 0
serio_raw 12878 0
snd_page_alloc 12969 2 snd_hda_intel,snd_pcm
button 12994 1 nouveau
processor 27431 3 acpi_cpufreq
video 17553 1 nouveau
ext4 285166 3
mbcache 12930 2 ext2,ext4
jbd2 65157 1 ext4
crc16 12343 2 l2cap,ext4
sha256_generic 16797 2
cryptd 14463 0
aes_x86_64 16796 6
aes_generic 37122 1 aes_x86_64
cbc 12747 2
dm_crypt 22256 1
dm_mod 62467 18 dm_crypt
sg 25769 0
sr_mod 21824 0
sd_mod 35501 3
cdrom 35134 1 sr_mod
crc_t10dif 12348 1 sd_mod
ata_generic 12479 0
uhci_hcd 26290 0
ata_piix 25319 2
libata 147240 2 ata_generic,ata_piix
sdhci_pci 13184 0
ehci_hcd 39529 0
firewire_ohci 30887 0
sdhci 21727 1 sdhci_pci
scsi_mod 161457 5 firewire_sbp2,sg,sr_mod,sd_mod,libata
e1000e 123965 0
mmc_core 58589 1 sdhci
usbcore 122908 4 btusb,uhci_hcd,ehci_hcd
firewire_core 47683 2 firewire_sbp2,firewire_ohci
crc_itu_t 12347 1 firewire_core
thermal 17330 0
thermal_sys 17939 3 video,processor,thermal
nls_base 12753 1 usbcore

** Network interface configuration:

auto lo
iface lo inet loopback

allow-hotplug eth0
iface eth0 inet dhcp

** Network status:
*** IP interfaces and addresses:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether
inet /16 brd scope link eth0:avahi
3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
link/ether
inet 192.168.1.7/24 brd 192.168.1.255 scope global wlan0
inet6 fe80::21c:bfff:fe85:e89d/64 scope link
valid_lft forever preferred_lft forever
4: vboxnet0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
link/ether 0a:00:27:00:00:00 brd ff:ff:ff:ff:ff:ff

*** Device statistics:
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed multicast|bytes packets errs drop fifo colls carrier compressed
lo: 293598 1060 0 0 0 0 0 0 293598 1060 0 0 0 0 0 0
eth0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
wlan0: 13043112 13821 0 0 0 0 0 0 1269114 8728 0 0 0 0 0 0
vboxnet0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

*** Protocol statistics:
Ip:
11274 total packets received
2 with invalid addresses
0 forwarded
0 incoming packets discarded
11268 incoming packets delivered
8601 requests sent out
35 dropped because of missing route
Icmp:
0 ICMP messages received
0 input ICMP message failed.
ICMP input histogram:
0 ICMP messages sent
0 ICMP messages failed
ICMP output histogram:
Tcp:
282 active connections openings
2 passive connection openings
3 failed connection attempts
52 connection resets received
0 connections established
10336 segments received
7710 segments send out
5 segments retransmited
1 bad segments received.
28 resets sent
Udp:
917 packets received
0 packets to unknown port received.
0 packet receive errors
896 packets sent
UdpLite:
TcpExt:
52 TCP sockets finished time wait in fast timer
213 delayed acks sent
Quick ack mode was activated 1 times
7640 packet headers predicted
502 acknowledgments not containing data payload received
199 predicted acknowledgments
5 other TCP timeouts
1 DSACKs sent for old packets
5 connections reset due to unexpected data
1 connections reset due to early user close
IpExt:
InMcastPkts: 51
OutMcastPkts: 22
InBcastPkts: 22
InOctets: 12733496
OutOctets: 967127
InMcastOctets: 9808
OutMcastOctets: 4626
InBcastOctets: 7216

*** Device features:
eth0: 0x1109a9
lo: 0x13865
vboxnet0: 0x0
wlan0: 0x2000

** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 0c)
Subsystem: Lenovo ThinkPad T61 [17aa:20b1]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>

00:01.0 PCI bridge [0604]: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port [8086:2a01] (rev 0c) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00002000-00002fff
Memory behind bridge: d4000000-d6ffffff
Prefetchable memory behind bridge: 00000000e0000000-00000000efffffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:19.0 Ethernet controller [0200]: Intel Corporation 82566MM Gigabit Network Connection [8086:1049] (rev 03)
Subsystem: Lenovo ThinkPad T61 [17aa:20b9]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 46
Region 0: Memory at fe200000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at fe225000 (32-bit, non-prefetchable) [size=4K]
Region 2: I/O ports at 1840 [size=32]
Capabilities: <access denied>
Kernel driver in use: e1000e

00:1a.0 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 [8086:2834] (rev 03) (prog-if 00 [UHCI])
Subsystem: Lenovo ThinkPad T61 [17aa:20aa]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 20
Region 4: I/O ports at 1860 [size=32]
Kernel driver in use: uhci_hcd

00:1a.1 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 [8086:2835] (rev 03) (prog-if 00 [UHCI])
Subsystem: Lenovo ThinkPad T60 [17aa:20aa]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 21
Region 4: I/O ports at 1880 [size=32]
Kernel driver in use: uhci_hcd

00:1a.7 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 [8086:283a] (rev 03) (prog-if 20 [EHCI])
Subsystem: Lenovo ThinkPad T61 [17aa:20ab]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 22
Region 0: Memory at fe226400 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd

00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD Audio Controller [8086:284b] (rev 03)
Subsystem: Lenovo ThinkPad T61 [17aa:20ac]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin B routed to IRQ 48
Region 0: Memory at fe220000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: HDA Intel

00:1c.0 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 [8086:283f] (rev 03) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: fc000000-fdffffff
Prefetchable memory behind bridge: 00000000f8000000-00000000f80fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.1 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 [8086:2841] (rev 03) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
I/O behind bridge: 00004000-00004fff
Memory behind bridge: dc100000-df2fffff
Prefetchable memory behind bridge: 00000000dfd00000-00000000dfdfffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.2 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 [8086:2843] (rev 03) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
I/O behind bridge: 00005000-00005fff
Memory behind bridge: d8000000-d9ffffff
Prefetchable memory behind bridge: 00000000dfa00000-00000000dfafffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.3 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 [8086:2845] (rev 03) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=05, subordinate=0c, sec-latency=0
I/O behind bridge: 00006000-00006fff
Memory behind bridge: d0000000-d1ffffff
Prefetchable memory behind bridge: 00000000df700000-00000000df7fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1c.4 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 [8086:2847] (rev 03) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=0d, subordinate=14, sec-latency=0
I/O behind bridge: 00007000-00007fff
Memory behind bridge: cc000000-cdffffff
Prefetchable memory behind bridge: 00000000df400000-00000000df4fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>
Kernel driver in use: pcieport

00:1d.0 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 [8086:2830] (rev 03) (prog-if 00 [UHCI])
Subsystem: Lenovo ThinkPad T61 [17aa:20aa]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 4: I/O ports at 18a0 [size=32]
Kernel driver in use: uhci_hcd

00:1d.1 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 [8086:2831] (rev 03) (prog-if 00 [UHCI])
Subsystem: Lenovo ThinkPad T61 [17aa:20aa]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 17
Region 4: I/O ports at 18c0 [size=32]
Kernel driver in use: uhci_hcd

00:1d.2 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 [8086:2832] (rev 03) (prog-if 00 [UHCI])
Subsystem: Lenovo ThinkPad T61 [17aa:20aa]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 18
Region 4: I/O ports at 18e0 [size=32]
Kernel driver in use: uhci_hcd

00:1d.7 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 [8086:2836] (rev 03) (prog-if 20 [EHCI])
Subsystem: Lenovo ThinkPad T61 [17aa:20ab]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin D routed to IRQ 19
Region 0: Memory at fe226800 (32-bit, non-prefetchable) [size=1K]
Capabilities: <access denied>
Kernel driver in use: ehci_hcd

00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev f3) (prog-if 01 [Subtractive decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Bus: primary=00, secondary=15, subordinate=18, sec-latency=32
I/O behind bridge: 00008000-0000bfff
Memory behind bridge: f8100000-fbffffff
Prefetchable memory behind bridge: 00000000f4000000-00000000f7ffffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: <access denied>

00:1f.0 ISA bridge [0601]: Intel Corporation 82801HBM (ICH8M-E) LPC Interface Controller [8086:2811] (rev 03)
Subsystem: Lenovo T61 [17aa:20b6]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: <access denied>

00:1f.2 IDE interface [0101]: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA IDE Controller [8086:2828] (rev 03) (prog-if 80 [Master])
Subsystem: Lenovo Device [17aa:20a8]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 16
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4 [size=1]
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374 [size=1]
Region 4: I/O ports at 1c30 [size=16]
Region 5: I/O ports at 1c20 [size=16]
Capabilities: <access denied>
Kernel driver in use: ata_piix

00:1f.3 SMBus [0c05]: Intel Corporation 82801H (ICH8 Family) SMBus Controller [8086:283e] (rev 03)
Subsystem: Lenovo ThinkPad T61 [17aa:20a9]
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 23
Region 0: Memory at fe226c00 (32-bit, non-prefetchable) [size=256]
Region 4: I/O ports at 1c40 [size=32]
Kernel driver in use: i801_smbus

01:00.0 VGA compatible controller [0300]: nVidia Corporation G84M [Quadro NVS 140M] [10de:0429] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Lenovo ThinkPad T61 [17aa:20d8]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at d6000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 3: Memory at d4000000 (64-bit, non-prefetchable) [size=32M]
Region 5: I/O ports at 2000 [size=128]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
Kernel driver in use: nouveau

03:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection [8086:4227] (rev 02)
Subsystem: Intel Corporation ThinkPad R60e/X60s [8086:1011]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 47
Region 0: Memory at df2ff000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: iwl3945

15:00.0 CardBus bridge [0607]: Ricoh Co Ltd RL5c476 II [1180:0476] (rev ba)
Subsystem: Lenovo Device [17aa:20c6]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 168
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f8100000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=15, secondary=16, subordinate=17, sec-latency=176
Memory window 0: f4000000-f7fff000 (prefetchable)
Memory window 1: 80000000-83fff000
I/O window 0: 00008000-000080ff
I/O window 1: 00008400-000084ff
BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt+ PostWrite+
16-bit legacy interface ports at 0001
Kernel driver in use: yenta_cardbus

15:00.1 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C832 IEEE 1394 Controller [1180:0832] (rev 04) (prog-if 10 [OHCI])
Subsystem: Lenovo Device [17aa:20c7]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64 (500ns min, 1000ns max)
Interrupt: pin B routed to IRQ 17
Region 0: Memory at f8101000 (32-bit, non-prefetchable) [size=2K]
Capabilities: <access denied>
Kernel driver in use: firewire_ohci

15:00.2 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter [1180:0822] (rev 21)
Subsystem: Lenovo Device [17aa:20c8]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64
Interrupt: pin C routed to IRQ 18
Region 0: Memory at f8101800 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: sdhci-pci

15:00.4 System peripheral [0880]: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter [1180:0592] (rev 11)
Subsystem: Lenovo ThinkPad T61 [17aa:20ca]
Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 11
Region 0: Memory at f8102000 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>

15:00.5 System peripheral [0880]: Ricoh Co Ltd xD-Picture Card Controller [1180:0852] (rev 11)
Subsystem: Lenovo Device [17aa:20cb]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64
Interrupt: pin C routed to IRQ 18
Region 0: Memory at f8102400 (32-bit, non-prefetchable) [size=256]
Capabilities: <access denied>
Kernel driver in use: r852


** USB devices:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0a5c:2110 Broadcom Corp. Bluetooth Controller
Bus 003 Device 003: ID 0483:2016 SGS Thomson Microelectronics Fingerprint Reader
Bus 006 Device 002: ID 17ef:1003 Lenovo Integrated Smart Card Reader


-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.38-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=fi_FI.UTF-8, LC_CTYPE=fi_FI.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.38-2-amd64 depends on:
ii debconf [debconf-2.0] 1.5.39 Debian configuration management sy
ii initramfs-tools [linux-initra 0.99 tools for generating an initramfs
ii linux-base 3.2 Linux image base package
ii module-init-tools 3.12-1 tools for managing Linux kernel mo

Versions of packages linux-image-2.6.38-2-amd64 recommends:
ii firmware-linux-free 3 Binary firmware for various driver

Versions of packages linux-image-2.6.38-2-amd64 suggests:
ii grub-pc 1.99~rc1-13 GRand Unified Bootloader, version
pn linux-doc-2.6.38 <none> (no description available)

Versions of packages linux-image-2.6.38-2-amd64 is related to:
pn firmware-bnx2 <none> (no description available)
pn firmware-bnx2x <none> (no description available)
pn firmware-ipw2x00 <none> (no description available)
pn firmware-ivtv <none> (no description available)
ii firmware-iwlwifi 0.29 Binary firmware for Intel Wireless
pn firmware-linux <none> (no description available)
pn firmware-linux-nonfree <none> (no description available)
pn firmware-qlogic <none> (no description available)
pn firmware-ralink <none> (no description available)
pn xen-hypervisor <none> (no description available)

-- debconf information:
linux-image-2.6.38-2-amd64/postinst/missing-firmware-2.6.38-2-amd64:
linux-image-2.6.38-2-amd64/prerm/removing-running-kernel-2.6.38-2-amd64: true
linux-image-2.6.38-2-amd64/postinst/ignoring-do-bootloader-2.6.38-2-amd64:
linux-image-2.6.38-2-amd64/postinst/depmod-error-initrd-2.6.38-2-amd64: false



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Archive: 20110525204228.13317.16028.reportbug@ti-4251">http://lists.debian.org/20110525204228.13317.16028.reportbug@ti-4251

Ben Hutchings 06-06-2011 12:59 AM

Bug#627957: linux-image-2.6.38-2-amd64: kworker consumes 40-70% of the other processor
 
On Wed, 2011-05-25 at 23:42 +0300, Perttu Muurimäki wrote:
> Package: linux-2.6
> Version: 2.6.38-5
> Severity: important
>
>
> Kworker processes consume more than half (on avarage)
> of the other processor. Using the machine is quirky since it takes
> 0.5-1 second pauses all the time. When typing normally I keep
> loosing keypresses.
>
> I googled around and found this tip that I should use boot option
> pcie_ports=compat or pcie_ports=native. Neither worked. If either is
> used the machine
> refuses to boot altogether and sends only the following error message:
>
> Alloc magic broken at 0x7ec2c2a0.
>
> The problem first occured the day before yesterday after my regular
> apt-get dist-upgrade excercise.
[...]

Please test version 2.6.39-1, without the VirtualBox modules loaded.

Ben.

--
Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.


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