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 ------------------------------------------------------------------------- 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
