[Bug 280088] Re: [Intrepid beta] kacpid runaway after resume

[Gabriel Thörnblad]

That is very good news, and thanks for letting us know.
I will keep this kernel updated with the latest patches for Intrepid, and I will try to keep an eye on the upstream kernel tree to see if any obvious patches for this problem trickles in. I don't want to pull everything from acpi-test since that may break other things.


** Summary changed:

- [Intrepid beta] kacpid runaway after resume
+ [Intrepid beta] kacpid and kacpi_notify consumes all CPU after resume

** Description changed:

- After resuming from suspend to ram or suspend to disk, kacpid and kacpi_notify battles to keep CPU at about 90%.
- This is on a DELL Latitude D810 with an ATI Mobility Radeon X600 on all 2.6.27-x kernels so far.
- The problem is NOT present in the oldest kernel i found for Intrepid - 2.6.25-2. Unfortunately, I have no working sound using this kernel.
- I looked at other bug reports concerning kacpid (like Bug #75174), but I think this is a new issue since there seems to be no connection to thermal control. I may be wrong, though.
- Please advice what type of info I should provide to help track down this issue.
+ After resuming from suspend to ram or suspend to disk, kacpid and kacpi_notify battles to keep CPU at about 90% if you have an extra battery in the media bay, or if you insert or remove an extra battery with the OS running.
+ This is on a Dell Latitude D810 on all Ubuntu 2.6.27-x kernels so far. The bug seems to be present with Dell laptops only.
+ 
+ Since there is a patch available upstream, I have posted a patched
+ kernel to my PPA which resolves the problem for some of us.
+ 
+ deb http://ppa.launchpad.net/gabriel-thornblad/ubuntu intrepid main
+ deb-src http://ppa.launchpad.net/gabriel-thornblad/ubuntu intrepid main
+ 
+ Install with:
+ sudo apt-get install linux-image-2.6.27-8-generic linux-headers-2.6.27-8-generic

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[Intrepid beta] kacpid and kacpi_notify consumes all CPU after resume
https://bugs.launchpad.net/bugs/280088
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