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usb-ohci mouse lockups on National Geode system

DISCUSSION Pete Zaitcev 2 participants 2 messages Jan 13, 2003 – Jan 14, 2003 1 message not in the archive

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#1 lore raw
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We are experiencing usb mouse freezing with different 2.4.x kernels (tested: 2.4.1, 2.4.17 and 2.4.20). In 2.4.20 it's actually much more frequent than in the older ones.
The freezing lockups only happen when the ide disk is active and the mouse is being moved during that time.

Sounds like a bug in ohci, but it may be hard to track down. In the meantime, use "hdparm -u 1 /dev/hda" in your boot scripts as a workaround.

-- Pete

#2 lore raw
Quoted 6 lines
Quoted 2 lines

We are experiencing usb mouse freezing with different 2.4.x kernels (tested: 2.4.1, 2.4.17 and 2.4.20). In 2.4.20 it's actually much more frequent than in the older ones. The freezing lockups only happen when the ide disk is active and the mouse is being moved during that time.

Sounds like a bug in ohci, but it may be hard to track down. In the meantime, use "hdparm -u 1 /dev/hda" in your boot scripts as a workaround.

I tried it, but there are no noticeable improvements. This maybe indicates that it's a general interrupt timing problem with the ohci driver?

/Patrik