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Date: Mon, 11 Feb 2008 23:17:40 -0500
From: "Miles Lane" <miles.lane@...il.com>
To: "Nishanth Aravamudan" <nacc@...ibm.com>
Cc: "Andrew Morton" <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>,
"Adam Litke" <agl@...ibm.com>,
"David Gibson" <david@...son.dropbear.id.au>
Subject: Re: 2.6.24-git20 -- BUG: sleeping function called from invalid context at include/asm/uaccess_32.h:449
I don't believe it is related to this patch, but while testing, I
tried running "find /proc | xargs cat" and "find /proc | xargs head"
and "find /proc | xargs tail" and "ls -aR /" all at once. Everything
seemed to be running great. Firefox continued to be highly
responsive. I did notice that one of the command line processes had
stopped scrolling text. After sending my approval message just now, I
killed all the command line processes. Then I noticed that the
frequency scaling monitor remained pegged for both CPUs in my Duo 2
Core processor. I ran top, and everything looked okay. As far as I
can tell, top thinks the CPU is mostly idling. However, as I write
this my fan is going full speed. I looked in my dmesg output and see
no sign of an OOPS, a BUG or and INFO message.
top - 23:01:03 up 13 min, 2 users, load average: 0.13, 0.70, 0.58
Tasks: 128 total, 2 running, 126 sleeping, 0 stopped, 0 zombie
Cpu(s): 1.5%us, 1.6%sy, 0.0%ni, 96.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 2060928k total, 855628k used, 1205300k free, 155704k buffers
Swap: 570268k total, 0k used, 570268k free, 259780k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3879 root 20 0 356m 16m 8212 R 2 0.8 1:58.43 Xorg
4377 miles 20 0 20948 8276 6992 S 1 0.4 0:07.75 multiload-apple
5099 miles 20 0 75368 22m 12m S 1 1.1 0:01.06 gnome-terminal
5176 miles 20 0 2304 1108 836 R 1 0.1 0:00.47 top
9 root -2 -5 0 0 0 S 0 0.0 0:00.25 group_balance
3344 messageb 20 0 3028 1212 732 S 0 0.1 0:00.85 dbus-daemon
3406 haldaemo 20 0 6112 3764 3152 S 0 0.2 0:00.81 hald
1 root 20 0 2972 1856 532 S 0 0.1 0:00.77 init
2 root 15 -5 0 0 0 S 0 0.0 0:00.00 kthreadd
[ 868.025460] power_supply BAT1: uevent
[ 868.025467] power_supply BAT1: POWER_SUPPLY_NAME=BAT1
[ 868.025475] power_supply BAT1: Static prop TYPE=Battery
[ 868.025480] power_supply BAT1: 12 dynamic props
[ 868.025486] power_supply BAT1: prop STATUS=Full
[ 868.025491] power_supply BAT1: prop PRESENT=1
[ 868.025496] power_supply BAT1: prop TECHNOLOGY=Li-ion
[ 868.025503] power_supply BAT1: prop VOLTAGE_MIN_DESIGN=14800000
[ 868.025508] power_supply BAT1: prop VOLTAGE_NOW=16715000
[ 868.025515] power_supply BAT1: prop CURRENT_NOW=0
[ 868.025520] power_supply BAT1: prop CHARGE_FULL_DESIGN=4800000
[ 868.025526] power_supply BAT1: prop CHARGE_FULL=4164000
[ 868.025532] power_supply BAT1: prop CHARGE_NOW=4160000
[ 868.025539] power_supply BAT1: prop MODEL_NAME=MAL42b
[ 868.025545] power_supply BAT1: prop MANUFACTURER=SMP-PAN24
[ 868.025552] power_supply BAT1: prop SERIAL_NUMBER=
[ 738.719569] power_supply BAT1: uevent
[ 738.719576] power_supply BAT1: POWER_SUPPLY_NAME=BAT1
[ 738.719583] power_supply BAT1: Static prop TYPE=Battery
[ 738.719587] power_supply BAT1: 12 dynamic props
[ 738.719592] power_supply BAT1: prop STATUS=Full
[ 738.719597] power_supply BAT1: prop PRESENT=1
[ 738.719603] power_supply BAT1: prop TECHNOLOGY=Li-ion
[ 738.719609] power_supply BAT1: prop VOLTAGE_MIN_DESIGN=14800000
[ 738.719616] power_supply BAT1: prop VOLTAGE_NOW=16715000
[ 738.719622] power_supply BAT1: prop CURRENT_NOW=0
[ 738.719627] power_supply BAT1: prop CHARGE_FULL_DESIGN=4800000
[ 738.719633] power_supply BAT1: prop CHARGE_FULL=4164000
[ 738.719639] power_supply BAT1: prop CHARGE_NOW=4160000
[ 738.719646] power_supply BAT1: prop MODEL_NAME=MAL42b
[ 738.719652] power_supply BAT1: prop MANUFACTURER=SMP-PAN24
[ 738.719658] power_supply BAT1: prop SERIAL_NUMBER=
[ 738.722095] power_supply ACAD: uevent
[ 738.722099] power_supply ACAD: POWER_SUPPLY_NAME=ACAD
[ 738.722105] power_supply ACAD: Static prop TYPE=Mains
[ 738.722110] power_supply ACAD: 1 dynamic props
[ 738.722114] power_supply ACAD: prop ONLINE=1
I just ran:
cpufreq-selector -c 0 -f 800
cpufreq-selector -c 1 -f 800
Now everything is quite and running normally, except that Gnome seems
to no longer be increasing the frequency of the CPUs with the ondemand
governor.
top - 23:10:58 up 23 min, 2 users, load average: 0.09, 0.17, 0.34
Tasks: 132 total, 1 running, 131 sleeping, 0 stopped, 0 zombie
Cpu(s): 6.4%us, 3.7%sy, 0.0%ni, 89.8%id, 0.2%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 2060928k total, 948740k used, 1112188k free, 156636k buffers
Swap: 570268k total, 0k used, 570268k free, 260544k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5240 miles 20 0 254m 106m 22m S 10 5.3 0:39.51 firefox-bin
3879 root 20 0 357m 16m 8664 S 4 0.8 2:27.28 Xorg
4377 miles 20 0 20948 8276 6992 S 2 0.4 0:15.21 multiload-apple
5099 miles 20 0 75552 23m 12m S 1 1.1 0:02.31 gnome-terminal
5682 root 20 0 2304 1108 836 R 1 0.1 0:00.52 top
7 root 15 -5 0 0 0 S 0 0.0 0:00.37 ksoftirqd/1
4170 miles 20 0 15584 3656 2788 S 0 0.2 0:01.43 gnome-screensav
1 root 20 0 2972 1856 532 S 0 0.1 0:00.77 init
Not sure how to explore this further.
Miles
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