Greg KH wrote: > On Tue, Jul 31, 2007 at 03:06:07PM -0600, Grant Likely wrote: >> I've observed instability on my Macbook c2d with the Linus' latest >> tree. Symptom is that USB devices start behaving badly and the >> kernel seems to be registering incorrect HID events; (ie. moving the >> mouse causes odd keyboard events). If I continue to attempt to use >> the >> mouse, it results in a system freeze (and I don't see any kind of >> backtrace in /var/log/kern.log). To reproduce the problem, I just >> need to be using the keyboard/mouse. If I leave the system idle, the >> problem does not seem to occur. If I actively use the >> keyboard/mouse, the problem can occur at any time; usually within >> 5-10 minutes. >> >> In my particular case, I've got both a USB key/mouse pair on the >> laptop and an external key/mouse pair plugged in via a hub. >> Typically, it's the external mouse that exhibits badness first. >> >> USB HID devices are definitely affected. I have not tested USB block >> devices. Isochronous transfers to a USB headset appear to be >> unaffected, but that's under minimal testing. >> >> I've bisected down to commit >> 196705c9bbc03540429b0f7cf9ee35c2f928a534, "USB: EHCI cpufreq fix" >> >> Reverting the patch at the head of the tree makes the kernel stable >> again. >> >> I've attached my kernel config file and a dmesg output > > Can you enable CONFIG_USB_DEBUG and send the linux-usb-devel list and > us, the output when you have these problems? > > thanks, > > greg k-h
I'm actually in the process right now of attaching a patch for this problem (well, I hope it's a patch for the problem you're seeing) right now on the bugzilla (bug 8535 at bugzilla.kernel.org). If you'd like to test it, that would be great. Thanks, Stuart ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
