Bug#689368: Mouse and keyboard freeze on Ivy Bridge platform

[Alan Stern <stern@rowland.harvard.edu>]

On Wed, 3 Oct 2012 sebastien.dinot@free.fr wrote:

> Hi,
> 
> I am encountering random keyboard and mouse freezes which can only be
> resolved by a hard reset (by pushing the power switch of the computer
> case).

> The mouse and keyboard are both USB devices and it seems that the bug
> is coming from the echci-hcd module:

> Can I run additional tests or give you additional informations to
> help you resolve this painful bug?

Please build a kernel with CONFIG_USB_DEBUG enabled.  When a hang
occurs, get a list of hang tasks (Alt-SysRq-w probably won't work, but
"echo w >/proc/sysrq-trigger" from a network login should).  Then send
the dmesg output

Alan Stern