Re: [Bug 10345] USB HID problems after resume
From: Alan Stern
Date: Sat Mar 29 2008 - 18:02:24 EST
On Sat, 29 Mar 2008, Mark Lord wrote:
> Just happened again. The machine resumed from RAM with no functioning USB.
> Still running the exact same 2.6.25-rc7 kernel as before, with the RTC conflict fixed.
>
> WTF?
The first step in debugging this is to build a kernel with
CONFIG_USB_DEBUG and send the dmesg log following an unsuccessful
resume. Include events from before the suspend; don't strip them out.
If the symptoms are the same as before then you should also get a stack
dump for the ksuspend_usbd task.
Alan Stern
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