I did some more research and found this kernel bug https://bugzilla.kernel.org/show_bug.cgi?id=53071 which seems to descibe exactly this issue. In that thread there is mentioned that a bios update might fix the problem. Thus I went hunting for an update for my model since the Software Update tool from Samsung does not show any updates. Eventually i found this https://www.samsung.com/us/support/owners/product/np700z7c (could not find an equivalent on the german site..). At "firmware" there is a download button that does work for me but in the HTML code there is a link http://org.downloadcenter.samsung.com/downloadfile/ContentsFile.aspx?CDSite=US&CttFileID=4986477&CDCttType=FM&ModelType=C&ModelName=NP700Z7C-S01US&VPath=FM/201203/20120305100525911/BIOSUpdate.exe which leads to a BIOS Update Tool (changing the modelname to my model leads to the same download) lunching this from windows allowed me to update to version P06AAE from P04AAE.
I can confirm that this does NOT solve the issue of the gpe13 interrupt spamming. In that kernel bug it is mentioned that the output of dmidecode might be / is useful to fix this. Thus I have attached that here too (executed after the bios update as you can see) ** Bug watch added: Linux Kernel Bug Tracker #53071 https://bugzilla.kernel.org/show_bug.cgi?id=53071 ** Attachment added: "dmidecode output" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+attachment/5141627/+files/dmidecode.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1087010 Title: kworker uses 70-90% of a CPU core (hyperthreaded) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087010/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
