Ubuntu Intrepid hanging Thinkpad X61 no more.

Yey! It seems that I didn't really notice that the hangs only occurred at home, where I had an 802.11n router, and not at the office where my nearest router was only an 802.11g router.

So I followed the advice of others and installed the linux-backports drivers *AND* disabled the n capabilities of my Intel 4965agn wireless transmitter. (Miss the high speeds when transferring files).

Now the only remaining issue is this: klogd eating CPU and disk space.

Ubuntu Intrepid hangs Thinkpad X61.

I've reinstalled Ubuntu Intrepid this morning, and I've since upgraded it to the latest updates, including thinkfinger and trackpoint scrolling.

No hangs yet (crossing my fingers).

The only difference from my old installation, though, is I haven't reinstalled conky on this one. I think I'm 99% sure it was conky indirectly causing the hanging because of the repeated ACPI calls. Come to think of it, I think the thinkpad never hung prior to installing conky on it.

Here's my .conkyrc, for reference (just in case I lose the file in some careless reinstall):

# Use double buffering (reduces flicker, may not work for everyone)
double_buffer yes

alignment top_right
own_window yes
own_window_transparent yes
own_window_type override
gap_y 15
gap_x 5
total_run_times 0
update_interval 3
cpu_avg_samples 5
net_avg_samples 5
use_xft yes
default_color lightblue
xftfont URW Bookman L:size=10
#xftfont Dejavu Sans Mono:size=10
top_cpu_separate yes
stippled_borders 10
own_window_hints undecorated,below,sticky,skip_taskbar,skip_pager
maximum_width 400

TEXT
$alignc${color white}All right, Jun! ${color }Uptime : $color $uptime ${color }
$alignc${color }${time %A %d %B %Y} - ${time %H:%M:%S}
$alignc$sysname $kernel - $machine $freq_g GHz
$alignc${color #FDFF00}${exec acpi -b | sed -e 's/^\ *//'}
$color$stippled_hr
$alignc${color }Network
${color }IP Adress : ${color }${addr wlan0}
${color }Download : ${color #00FF00} ${downspeed wlan0} kB/s${alignr}${color }Upload : ${color #FF0000}${upspeed wlan0} kB/s
${color black}${downspeedgraph wlan0 25,180 404080 00FF00} $alignr${color black}${upspeedgraph wlan0 25,180 404080 FF0000}
$color$stippled_hr
$alignc${color }System Resources
${color }CPU Temp : ${color blue}${acpitemp}°C ${color } ${alignr}Fan Speed: ${color blue}${ibm_fan}
${color }Core 1 : ${color #00FF00} ${cpu cpu1}% ${cpubar cpu1}
${color }Core 2 : ${color #00FF00} ${cpu cpu2}% ${cpubar cpu2}
${color }RAM : ${color #FDFF00} $memperc% $membar
${color }Swap : ${color #FF0000} $swapperc% ${swapbar}
$color$stippled_hr
$alignc${color }Disk Space
${color #00FF00}Linux / ${fs_used /}/${fs_size /}${alignr}${fs_used_perc /}%
${fs_bar 8 /}
${color #FDFF00}Windows ${fs_used /media/SW_Preload}/${fs_size /media/SW_Preload}${alignr}${fs_used_perc /media/SW_Preload}%
${fs_bar 8 /media/SW_Preload}
${color #FF0000}Home ${fs_used /home}/${fs_size /home}${alignr}${fs_used_perc /home}%
${fs_bar 8 /home}
$color$stippled_hr
$alignc${color }Processes${font Dejavu Sans Mono:size=10}
${color light blue}NAME$color ${color light blue}PID$color ${color light blue}CPU%$color ${color light blue}MEM%$color
${top name 1} ${top pid 1} ${top cpu 1} ${top mem 1}
${top name 2} ${top pid 2} ${top cpu 2} ${top mem 2}
${top name 3} ${top pid 3} ${top cpu 3} ${top mem 3}
${top name 4} ${top pid 4} ${top cpu 4} ${top mem 4}
${font}$alignc${color}Mem usage${font Dejavu Sans Mono:size=10}
${color #ddaa00}${top_mem name 1} ${top_mem pid 1} ${top_mem cpu 1} ${top_mem mem 1}
${color lightgrey}${top_mem name 2} ${top_mem pid 2} ${top_mem cpu 2} ${top_mem mem 2}
${color lightgrey}${top_mem name 3} ${top_mem pid 3} ${top_mem cpu 3} ${top_mem mem 3}
${color lightgrey}${top_mem name 4} ${top_mem pid 4} ${top_mem cpu 4} ${top_mem mem 4}
${font}$color$stippled_hr
$alignc${exec rhythmbox-client --no-start --print-playing-format "%tt - %ta"}
$alignc${exec rhythmbox-client --no-start --print-playing-format "%te / %td"}

Ubuntu Intrepid hanging my Thinkpad X61.

While I was using the X61, it hung on me. Same type of hanging as the previous two, but this time the screen was on (on the previous two, the screen was blank because the lid was closed) since I was using it. I switched to another workspace and left it for a few seconds to watch TV but when I tried to move the trackpoint/mouse, bam! Dead machine. Normal temperature though.

Sigh... I'm suspecting either Transmission (bittorrent client) or the Vista partition being mounted (grin)... maybe even VLC 0.9.4, which was also left in memory (paused or stopped) when the hangs occurred.

Ubuntu Intrepid on Thinkpad X61 issue

I just want to keep a record of this here for historical purposes, while I can still find it in the logs:

Nov 15 00:35:16 x61 kernel: [ 5364.027521] bad: scheduling from the idle thread!
Nov 15 00:35:16 x61 kernel: [ 5364.027527] Pid: 0, comm: swapper Not tainted 2.6.27-7-generic #1
Nov 15 00:35:16 x61 kernel: [ 5364.027529] [] ? printk+0x1d/0x1f
Nov 15 00:35:16 x61 kernel: [ 5364.027533] [] dequeue_task_idle+0x2a/0x40
Nov 15 00:35:16 x61 kernel: [ 5364.027536] [] dequeue_task+0xcf/0x130
Nov 15 00:35:16 x61 kernel: [ 5364.027540] [] deactivate_task+0x1a/0x30
Nov 15 00:35:16 x61 kernel: [ 5364.027543] [] schedule+0x4b3/0x790
Nov 15 00:35:16 x61 kernel: [ 5364.027546] [] ? notifier_call_chain+0x35/0x70
Nov 15 00:35:16 x61 kernel: [ 5364.027550] [] ? clockevents_notify+0x35/0x80
Nov 15 00:35:16 x61 kernel: [ 5364.027553] [] cpu_idle+0xbd/0x140
Nov 15 00:35:16 x61 kernel: [ 5364.027556] [] start_secondary+0x9d/0xcc
Nov 15 00:35:16 x61 kernel: [ 5364.027559] =======================
Nov 15 00:35:16 x61 kernel: [ 5364.033725] bad: scheduling from the idle thread!
Nov 15 00:35:16 x61 kernel: [ 5364.033730] Pid: 0, comm: swapper Not tainted 2.6.27-7-generic #1
Nov 15 00:35:16 x61 kernel: [ 5364.033732] [] ? printk+0x1d/0x1f
Nov 15 00:35:16 x61 kernel: [ 5364.033736] [] dequeue_task_idle+0x2a/0x40
Nov 15 00:35:16 x61 kernel: [ 5364.033738] [] dequeue_task+0xcf/0x130
Nov 15 00:35:16 x61 kernel: [ 5364.033742] [] deactivate_task+0x1a/0x30
Nov 15 00:35:16 x61 kernel: [ 5364.033744] [] schedule+0x4b3/0x790
Nov 15 00:35:16 x61 kernel: [ 5364.033747] [] ? notifier_call_chain+0x35/0x70
Nov 15 00:35:16 x61 kernel: [ 5364.033751] [] ? clockevents_notify+0x35/0x80
Nov 15 00:35:16 x61 kernel: [ 5364.033755] [] cpu_idle+0xbd/0x140
Nov 15 00:35:16 x61 kernel: [ 5364.033758] [] start_secondary+0x9d/0xcc
Nov 15 00:35:16 x61 kernel: [ 5364.033761] =======================
Nov 15 00:35:16 x61 kernel: [ 5364.039736] bad: scheduling from the idle thread!
Nov 15 00:35:16 x61 kernel: [ 5364.039741] Pid: 0, comm: swapper Not tainted 2.6.27-7-generic #1
Nov 15 00:35:16 x61 kernel: [ 5364.039743] [] ? printk+0x1d/0x1f
Nov 15 00:35:16 x61 kernel: [ 5364.039747] [] dequeue_task_idle+0x2a/0x40
Nov 15 00:35:16 x61 kernel: [ 5364.039750] [] dequeue_task+0xcf/0x130
Nov 15 00:35:16 x61 kernel: [ 5364.039754] [] deactivate_task+0x1a/0x30
Nov 15 00:35:16 x61 kernel: [ 5364.039757] [] schedule+0x4b3/0x790
Nov 15 00:35:16 x61 kernel: [ 5364.039760] [] ? notifier_call_chain+0x35/0x70
Nov 15 00:35:16 x61 kernel: [ 5364.039764] [] ? clockevents_notify+0x35/0x80
Nov 15 00:35:16 x61 kernel: [ 5364.039768] [] cpu_idle+0xbd/0x140
Nov 15 00:35:16 x61 kernel: [ 5364.039771] [] start_secondary+0x9d/0xcc
Nov 15 00:35:16 x61 kernel: [ 5364.039774] =======================
Nov 15 00:35:16 x61 kernel: [ 5364.046134] bad: scheduling from the idle thread!
Nov 15 00:35:16 x61 kernel: [ 5364.046140] Pid: 0, comm: swapper Not tainted 2.6.27-7-generic #1
Nov 15 00:35:16 x61 kernel: [ 5364.046142] [] ? printk+0x1d/0x1f
Nov 15 00:35:16 x61 kernel: [ 5364.046147] [] dequeue_task_idle+0x2a/0x40
Nov 15 00:35:16 x61 kernel: [ 5364.046151] [] dequeue_task+0xcf/0x130
Nov 15 00:35:16 x61 kernel: [ 5364.046154] [] deactivate_task+0x1a/0x30
Nov 15 00:35:16 x61 kernel: [ 5364.046158] [] schedule+0x4b3/0x790
Nov 15 00:35:16 x61 kernel: [ 5364.046161] [] ? notifier_call_chain+0x35/0x70
Nov 15 00:35:16 x61 kernel: [ 5364.046165] [] ? clockevents_notify+0x35/0x80
Nov 15 00:35:16 x61 kernel: [ 5364.046169] [] cpu_idle+0xbd/0x140
Nov 15 00:35:16 x61 kernel: [ 5364.046172] [] start_secondary+0x9d/0xcc
Nov 15 00:35:16 x61 kernel: [ 5364.046176] =======================

... ad nauseum...

This causes my thinkpad to heat up tremendously : up to 80 deg Celsius (!) -- simply unacceptable. Not to mention eating up the CPU cycles...

When, oh when, are they gonna fix this???

Oh, and now I remember the state of my X61 on the first time Ubuntu Intrepid hung my X61:

The HDD LED, Numlock, and Standby (crescent moon) were all off (the battery was fully charged but laptop is still plugged in) and the CAPSLOCK was blinking repeatedly along with the WiFi LED (darn it, I forgot if the Wifi LED was blinking or steady! I think it was steady...). Oh, and the laptop would not respond to anything but the power button (4-sec shutdown).

How did I remember? It happened again, before 6am today. :-(

Plus, when I hibernated it before leaving the house, it got stuck on a CLI screen with the ff. two lines, and didn't power off.

[xxxxx] btusb_intr_complete: hci0 urb f617a680 failed to resubmit (19)
[xxxxx] btusb_intr_complete: hci0 urb f66ed600 submission failed

When I turned it on again at the office, it started the "Waking up..." process but didn't manage to complete it. So I turned it off again, then restarted and immediately killed klogd.