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Bug#670797: marked as done (linux-image-3.2.0-2-686-pae: CPU load not being distributed)

Your message dated Sat, 6 Jul 2013 18:00:09 +0200
with message-id <20130706160009.GF12523@pisco.westfalen.local>
and subject line Closing
has caused the Debian Bug report #670797,
regarding linux-image-3.2.0-2-686-pae: CPU load not being distributed
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
670797: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=670797
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: linux-2.6
Version: 3.2.15-1
Severity: important

Dear Maintainer,
I'm seeing some unusual behaviour in my 4 cores desktop and can't figure out
what's going on. Currently I'm using latest 'testing' kernel, but I've noticed
this behavior in all 3.x debian stock kernel series.

Even when the kernels have SMP enabled, only one of my 4 cores gets all the CPU
affinity, distributing the load only when it's at 100%.

I have checked for SMP_default_afinity, but it's in F (default), which I've
read it's ok.

I recently installed 'sar' to get more detailed information, but here are the
outputs from mpstat and /proc/interrupts, they clearly show processing
differences among all CPU cores:

$ mpstat -P ALL
Linux 3.2.0-2-686-pae (frankie)         29/04/12        _i686_  (4 CPU)

01:03:26     CPU    %usr   %nice    %sys %iowait    %irq   %soft  %steal
%guest   %idle
01:03:26     all    2,68   13,79    3,12    7,24    0,00    0,56    0,00
0,00   72,61
01:03:26       0    1,03    0,83    0,77    5,94    0,00    0,00    0,00
0,00   91,42
01:03:26       1    0,65    0,68    0,51    5,21    0,00    0,01    0,00
0,00   92,95
01:03:26       2    0,75    1,10    0,63    5,76    0,00    0,17    0,00
0,00   91,60
01:03:26       3    8,28   52,46   10,55   12,06    0,00    2,05    0,00
0,00   14,60
$ cat /proc/interrupts
           CPU0       CPU1       CPU2       CPU3
  0:         87        287      12806     143287   IO-APIC-edge      timer
  1:          0          3        153       3351   IO-APIC-edge      i8042
  4:          0          0          0          2   IO-APIC-edge
  6:          0          0         38       1334   IO-APIC-edge      floppy
  7:          1          0          0          0   IO-APIC-edge      parport0
  8:          0          0          2         54   IO-APIC-edge      rtc0
  9:          0          0          0          0   IO-APIC-fasteoi   acpi
 14:          1        100       2774      46679   IO-APIC-edge
pata_atiixp
 15:          0          0          0          0   IO-APIC-edge
pata_atiixp
 16:          1         23        816      32680   IO-APIC-fasteoi
ohci_hcd:usb3, ohci_hcd:usb4, snd_hda_intel
 17:          0          3        209      21995   IO-APIC-fasteoi
ehci_hcd:usb1
 18:          0          0          1         52   IO-APIC-fasteoi
ohci_hcd:usb5, ohci_hcd:usb6, ohci_hcd:usb7, fglrx[0]@PCI:1:5:0
 19:          0          0          0         19   IO-APIC-fasteoi
ehci_hcd:usb2, snd_hda_intel
 21:          1        210       7109     621617   IO-APIC-fasteoi   ath
 22:          4        106       3942     112678   IO-APIC-fasteoi   ahci
 42:          0          0          0          0   PCI-MSI-edge      eth0
NMI:          9          8          9        137   Non-maskable interrupts
LOC:      57319      43568      42688     624135   Local timer interrupts
SPU:          0          0          0          0   Spurious interrupts
PMI:          9          8          9        137   Performance monitoring
interrupts
IWI:          0          0          0          0   IRQ work interrupts
RES:     228406     119635     175374     296599   Rescheduling interrupts
CAL:       4245       4228       4225        539   Function call interrupts
TLB:       2111       2331       2262       4288   TLB shootdowns
TRM:          0          0          0          0   Thermal event interrupts
THR:          0          0          0          0   Threshold APIC interrupts
MCE:          0          0          0          0   Machine check exceptions
MCP:          7          7          7          7   Machine check polls
ERR:          1
MIS:          0


This is my processor:
# cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 16
model           : 2
model name      : AMD Phenom(tm) 9600 Quad-Core Processor
stepping        : 2
microcode       : 0x1000083
cpu MHz         : 2300.000
cache size      : 512 KB
physical id     : 0
siblings        : 4
core id         : 0
cpu cores       : 4
apicid          : 0
initial apicid  : 0
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 5
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc nonstop_tsc extd_apicid pni monitor cx16
popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse
3dnowprefetch osvw ibs npt lbrv svm_lock
bogomips        : 4830.18
clflush size    : 64
cache_alignment : 64
address sizes   : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate


thanks in advance!



-- Package-specific info:
** Version:
Linux version 3.2.0-2-686-pae (Debian 3.2.15-1) (debian-kernel@lists.debian.org) (gcc version 4.6.3 (Debian 4.6.3-3) ) #1 SMP Sun Apr 15 17:56:31 UTC 2012

** Command line:
BOOT_IMAGE=/vmlinuz-3.2.0-2-686-pae root=UUID=d4fe6cec-1f8d-4767-8b4b-4646660c1f31 ro quiet

** Tainted: PO (4097)
 * Proprietary module has been loaded.
 * Out-of-tree module has been loaded.

** Kernel log:
[  585.977310] end_request: I/O error, dev fd0, sector 0
[  598.153115] end_request: I/O error, dev fd0, sector 0
[  598.153123] Buffer I/O error on device fd0, logical block 0
[  610.326009] end_request: I/O error, dev fd0, sector 0
[  610.326018] Buffer I/O error on device fd0, logical block 0
[  622.497025] end_request: I/O error, dev fd0, sector 0
[  622.497033] Buffer I/O error on device fd0, logical block 0
[  634.672541] end_request: I/O error, dev fd0, sector 0
[  634.672549] Buffer I/O error on device fd0, logical block 0
[  646.844996] end_request: I/O error, dev fd0, sector 0
[  646.845003] Buffer I/O error on device fd0, logical block 0
[  659.012869] end_request: I/O error, dev fd0, sector 0
[  659.012878] Buffer I/O error on device fd0, logical block 0
[  695.600033] usb 1-1: new high-speed USB device number 5 using ehci_hcd
[  695.737460] usb 1-1: New USB device found, idVendor=0930, idProduct=6545
[  695.737466] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  695.737469] usb 1-1: Product: DataTraveler 108
[  695.737471] usb 1-1: Manufacturer: Kingston
[  695.737472] usb 1-1: SerialNumber: 0023242CA148EBC1800066B8
[  695.760815] usbcore: registered new interface driver uas
[  695.762714] Initializing USB Mass Storage driver...
[  695.762851] scsi6 : usb-storage 1-1:1.0
[  695.762945] usbcore: registered new interface driver usb-storage
[  695.762947] USB Mass Storage support registered.
[  696.836946] scsi 6:0:0:0: Direct-Access     Kingston DataTraveler 108 PMAP PQ: 0 ANSI: 0 CCS
[  698.735789] sd 6:0:0:0: [sdd] 15240576 512-byte logical blocks: (7.80 GB/7.26 GiB)
[  698.737711] sd 6:0:0:0: [sdd] Write Protect is off
[  698.737715] sd 6:0:0:0: [sdd] Mode Sense: 23 00 00 00
[  698.739710] sd 6:0:0:0: [sdd] No Caching mode page present
[  698.739715] sd 6:0:0:0: [sdd] Assuming drive cache: write through
[  698.744470] sd 6:0:0:0: [sdd] No Caching mode page present
[  698.744476] sd 6:0:0:0: [sdd] Assuming drive cache: write through
[  698.764977]  sdd: sdd1
[  698.767967] sd 6:0:0:0: [sdd] No Caching mode page present
[  698.767973] sd 6:0:0:0: [sdd] Assuming drive cache: write through
[  698.767976] sd 6:0:0:0: [sdd] Attached SCSI removable disk
[  727.148699] end_request: I/O error, dev fd0, sector 0
[  739.317246] end_request: I/O error, dev fd0, sector 0
[  739.317255] Buffer I/O error on device fd0, logical block 0
[  984.357054] end_request: I/O error, dev fd0, sector 0
[  996.512567] end_request: I/O error, dev fd0, sector 0
[  996.512575] Buffer I/O error on device fd0, logical block 0
[ 1008.690058] end_request: I/O error, dev fd0, sector 0
[ 1008.690067] Buffer I/O error on device fd0, logical block 0
[ 1020.864479] end_request: I/O error, dev fd0, sector 0
[ 1020.864487] Buffer I/O error on device fd0, logical block 0
[ 1033.040865] end_request: I/O error, dev fd0, sector 0
[ 1033.040874] Buffer I/O error on device fd0, logical block 0
[ 1045.229722] end_request: I/O error, dev fd0, sector 0
[ 1045.229730] Buffer I/O error on device fd0, logical block 0
[ 1057.400718] end_request: I/O error, dev fd0, sector 0
[ 1057.400727] Buffer I/O error on device fd0, logical block 0
[ 1069.572719] end_request: I/O error, dev fd0, sector 0
[ 1069.572728] Buffer I/O error on device fd0, logical block 0
[ 1081.749231] end_request: I/O error, dev fd0, sector 0
[ 1081.749239] Buffer I/O error on device fd0, logical block 0
[ 1093.921073] end_request: I/O error, dev fd0, sector 0
[ 1093.921081] Buffer I/O error on device fd0, logical block 0
[ 1106.092828] end_request: I/O error, dev fd0, sector 0
[ 1106.092837] Buffer I/O error on device fd0, logical block 0
[ 1118.265258] end_request: I/O error, dev fd0, sector 0
[ 1118.265267] Buffer I/O error on device fd0, logical block 0
[ 1130.428914] end_request: I/O error, dev fd0, sector 0
[ 1130.428923] Buffer I/O error on device fd0, logical block 0
[ 1142.612476] end_request: I/O error, dev fd0, sector 0
[ 1142.612483] Buffer I/O error on device fd0, logical block 0
[ 1154.784513] end_request: I/O error, dev fd0, sector 0
[ 1154.784521] Buffer I/O error on device fd0, logical block 0
[ 1166.952781] end_request: I/O error, dev fd0, sector 0
[ 1166.952790] Buffer I/O error on device fd0, logical block 0
[ 1179.116596] end_request: I/O error, dev fd0, sector 0
[ 1179.116605] Buffer I/O error on device fd0, logical block 0
[ 1191.280961] end_request: I/O error, dev fd0, sector 0
[ 1191.280970] Buffer I/O error on device fd0, logical block 0
[ 1203.448446] end_request: I/O error, dev fd0, sector 0
[ 1203.448455] Buffer I/O error on device fd0, logical block 0
[ 1215.620765] end_request: I/O error, dev fd0, sector 0
[ 1215.620774] Buffer I/O error on device fd0, logical block 0
[ 1227.789195] end_request: I/O error, dev fd0, sector 0
[ 1227.789204] Buffer I/O error on device fd0, logical block 0
[ 1239.960881] end_request: I/O error, dev fd0, sector 0
[ 1239.960890] Buffer I/O error on device fd0, logical block 0
[ 1252.128807] end_request: I/O error, dev fd0, sector 0
[ 1252.128815] Buffer I/O error on device fd0, logical block 0
[ 1264.293587] end_request: I/O error, dev fd0, sector 0
[ 1264.293595] Buffer I/O error on device fd0, logical block 0
[ 1276.469172] end_request: I/O error, dev fd0, sector 0
[ 1276.469180] Buffer I/O error on device fd0, logical block 0
[ 1288.632383] end_request: I/O error, dev fd0, sector 0
[ 1288.632391] Buffer I/O error on device fd0, logical block 0
[ 1300.789218] end_request: I/O error, dev fd0, sector 0
[ 1300.789226] Buffer I/O error on device fd0, logical block 0
[ 1312.960216] end_request: I/O error, dev fd0, sector 0
[ 1312.960224] Buffer I/O error on device fd0, logical block 0
[ 1325.132923] end_request: I/O error, dev fd0, sector 0
[ 1325.132930] Buffer I/O error on device fd0, logical block 0
[ 1467.212316] warning: `VirtualBox' uses 32-bit capabilities (legacy support in use)
[ 1470.059103] scsi_verify_blk_ioctl: 6 callbacks suppressed
[ 1470.059107] VBoxSVC: sending ioctl 5393 to a partition!
[ 1478.661132] VBoxSVC: sending ioctl 5393 to a partition!

** Model information
not available

** Loaded modules:
usb_storage
uas
btrfs
crc32c
libcrc32c
zlib_deflate
ufs
qnx4
hfsplus
hfs
minix
ntfs
vfat
msdos
fat
jfs
xfs
reiserfs
ext3
jbd
fglrx(P)
nfnetlink_log
nfnetlink
bnep
rfcomm
ppdev
lp
pci_stub
vboxpci(O)
vboxnetadp(O)
vboxnetflt(O)
snd_hrtimer
vboxdrv(O)
binfmt_misc
fuse
cpufreq_userspace
microcode
snd_intel8x0
snd_ac97_codec
ac97_bus
snd_i2c
snd_virmidi
snd_seq_virmidi
snd_seq_midi_emul
hwmon_vid
k8temp
forcedeth
cpuid
powernow_k8
mperf
nfsd
nfs
nfs_acl
auth_rpcgss
fscache
lockd
sunrpc
ext2
snd_hda_codec_hdmi
snd_hda_codec_realtek
snd_hda_intel
snd_hda_codec
snd_hwdep
snd_pcm_oss
snd_mixer_oss
snd_pcm
snd_seq_midi
snd_seq_midi_event
snd_page_alloc
snd_rawmidi
arc4
snd_seq
snd_seq_device
snd_timer
snd
sp5100_tco
ath5k
soundcore
i2c_piix4
ath
mac80211
cfg80211
btusb
bluetooth
rfkill
shpchp
i2c_core
parport_pc
k10temp
pcspkr
evdev
parport
processor
asus_atk0110
button
thermal_sys
wmi
ext4
crc16
jbd2
mbcache
dm_mod
sd_mod
crc_t10dif
usbhid
ata_generic
hid
firewire_ohci
floppy
ahci
libahci
firewire_core
crc_itu_t
pata_atiixp
ohci_hcd
libata
ehci_hcd
scsi_mod
r8169
mii
usbcore
usb_common


-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 3.2.0-2-686-pae (SMP w/4 CPU cores)
Locale: LANG=es_AR.UTF-8, LC_CTYPE=es_AR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages linux-image-3.2.0-2-686-pae depends on:
ii  debconf [debconf-2.0]                   1.5.40
ii  initramfs-tools [linux-initramfs-tool]  0.99
ii  kmod                                    6-2
ii  linux-base                              3.5
ii  module-init-tools                       6-2

Versions of packages linux-image-3.2.0-2-686-pae recommends:
ii  firmware-linux-free  3
ii  libc6-i686           2.13-7

Versions of packages linux-image-3.2.0-2-686-pae suggests:
pn  grub-pc        1.99-6
pn  linux-doc-3.2  <none>

Versions of packages linux-image-3.2.0-2-686-pae is related to:
pn  firmware-atheros        <none>
pn  firmware-bnx2           <none>
pn  firmware-bnx2x          <none>
pn  firmware-brcm80211      <none>
pn  firmware-intelwimax     <none>
pn  firmware-ipw2x00        <none>
pn  firmware-ivtv           <none>
pn  firmware-iwlwifi        <none>
pn  firmware-libertas       <none>
pn  firmware-linux          <none>
pn  firmware-linux-nonfree  0.35
pn  firmware-myricom        <none>
pn  firmware-netxen         <none>
pn  firmware-qlogic         <none>
pn  firmware-ralink         <none>
pn  firmware-realtek        <none>
pn  xen-hypervisor          <none>

-- debconf information:
  linux-image-3.2.0-2-686-pae/postinst/depmod-error-initrd-3.2.0-2-686-pae: false
  linux-image-3.2.0-2-686-pae/postinst/missing-firmware-3.2.0-2-686-pae:
  linux-image-3.2.0-2-686-pae/prerm/removing-running-kernel-3.2.0-2-686-pae: true
  linux-image-3.2.0-2-686-pae/postinst/ignoring-ramdisk:

--- End Message ---
--- Begin Message --- 
Hi,
your bug has been filed against the "linux-2.6" source package and was filed for
a kernel older than the recently released Debian 7.x / Wheezy with a severity
less than important.

We don't have the ressources to reproduce the complete backlog of all older kernel
bugs, so we're closing this bug for now. If you can reproduce the bug with Debian Wheezy
or a more recent kernel from testing or unstable, please reopen the bug by sending
a mail to control@bugs.debian.org with the following three commands included in the
mail:

reopen BUGNUMBER
reassign BUGNUMBER src:linux
thanks

Cheers,
        Moritz

--- End Message ---
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