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:
--
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