[Bug 80539] ohci_hcd driver causes interrupt flood, high load

Ryan Lovett ryan at spacecoaster.org
Thu Mar 29 09:22:51 UTC 2007


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Binary package hint: hal

On our Sun x4600, there is a phantom CPU load of about 9.4 and no
processes seemingly consuming resources. /proc/interrupts reveals that
the ohci_hcd kernel module is spewing interrupts and when it is unloaded
the CPU load goes down. Unfortunately this removes keyboard and mouse
support which is important. google revealed similar reports:

http://forum.java.sun.com/thread.jspa?threadID=5112957
http://www.mail-archive.com/linux-il@cs.huji.ac.il/msg45814.html

Ryan

** Affects: linux-source-2.6.15 (Ubuntu)
     Importance: Undecided
         Status: Needs Info

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ohci_hcd driver causes interrupt flood, high load
https://beta.launchpad.net/bugs/80539




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