Asus L3D abnormal 100% CPU load and fan with Gutsy kernel

[RedBass]

Binary package hint: linux-image-2.6.22-14-generic

On Feisty (linux kernel 2.6.20) all works good, but when i had install Gutsy the CPU works in a abnormal mode:
1) CPU load is at 100%
2) If I execute TOP, none processes use the CPU over 2-3%
3) The temperature doesn't go hover 37° (Thermal 1: ok, 37.0 degrees C)
4) The fan start at the max speed and doesn't stop.
5) All programs works slowly

I stamp dmesg when the fan start works at max speed
 Asus Laptop ACPI Extras version 0.30
[ 46.824088] L3D model detected, supported
[ 47.642519] powernow: PowerNOW! Technology present. Can scale: frequency and voltage.
[ 47.737729] powernow: SGTC: 13333
[ 47.737735] powernow: Minimum speed 535 MHz. Maximum speed 1874 MHz.
[ 30.272000] Marking TSC unstable due to: cpufreq changes.
[ 30.276000] Time: acpi_pm clocksource has been installed.
[ 30.508000] Clocksource tsc unstable (delta = 309218595 ns)
[ 31.288000] ACPI: PCI Interrupt 0000:00:02.6[C] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11
[ 31.644000] eth0: Media Link Off
[ 31.660000] ttyS1: LSR safety check engaged!
[ 32.824000] NET: Registered protocol family 10
[ 32.824000] lo: Disabled Privacy Extensions
[ 32.824000] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 33.228000] ppdev: user-space parallel port driver
[ 33.464000] audit(1194961243.943:3): type=1503 operation="inode_permission" requested_mask="a" denied_mask="a" name="/dev/tty" pid=4882 profile="/usr/sbin/cupsd"
[ 33.524000] apm: BIOS not found.
[ 33.764000] Failure registering capabilities with primary security module.

I don't know if is an apm problem but:

redbass@Tank:~$ apm
No APM support in kernel

Help.. TNX

p.s. if i use the 2.6.20 on Gutsy all works good

[Marco Cimmino (cimmo)]

wow I have the same laptop and same identical problem, fan starts sometimes without a reason and sometimes during boot...

[Marco Cimmino (cimmo)]

I add that I had no problem with Feisty and now with Gutsy I have this problem.
Top doesn't show the process that causes this, but with a superkaramba theme I can see that the cpu goes at 100%

The bad thing is very difficult to understand which is the exact component that causes this problem.

[Marco Cimmino (cimmo)]

dmesg

[Marco Cimmino (cimmo)]

Compiled vanilla kernel 2.6.23.1 and the bug is gone, so yes seems a bug in the ubuntu 2.6.22-14 kernel, acpi probably? Who knows...

[Leann Ogasawara (leannogasawara)]

The Hardy Heron Alpha2 release will be coming out soon. It will have an updated version of the kernel. It would be great if you could test with this new release and verify if this issue still exists. I'll be sure to update this report when Alpha2 is available. Thanks!

[Leann Ogasawara (leannogasawara)]

Hardy Heron Alpha2 was recently released. It contains an updated version of the kernel. You can download and try the new Hardy Heron Alpha2 release from http://cdimage.ubuntu.com/releases/hardy/alpha-2/ . You should be able to then test the new kernel via the LiveCD. If you can, please verify if this bug still exists or not and report back your results. General information regarding the release can also be found here: http://www.ubuntu.com/testing/hardy/alpha2 . Thanks!

[Marco Cimmino (cimmo)]

Leann hardy alpha4 is ok now, maybe also RedBass can confirm

[RedBass (redbass)]

Yes all works good with the last update of Hardy.

[Leann Ogasawara (leannogasawara)]

Hi All,

Thanks for testing and the updates. I'm glad to hear things are working with the newer kernel. I'm going to close this report for now. Please reopen if you notice any regression. Also continue to report and future bugs you may find, it's very much appreciated. Thanks!