linux-kernel - Re: Random problems with 2.6.28-rc1-git1

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Date:	Sun, 26 Oct 2008 02:39:03 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	"Mikko C." <mikko.cal@...il.com>
cc:	linux-kernel@...r.kernel.org
Subject: Re: Random problems with 2.6.28-rc1-git1

On Sat, 25 Oct 2008, Mikko C. wrote:

> Today I tried upgrading to 2.6.28-rc1-git1 (-rc1 couldn't even mount the 
> disk). I'm having some problems with it :)
> 1) Whenever I try to unload (rmmod or modprobe -r) *any* modules (even 
>    if not used), the system hangs.  I can still move the mouse and see 
>    the cursor moving, but I can't type, can't switch console, nothing.  
>    Because of this, I can't shutdown the system properly because it 
>    hangs when "Unloading ALSA modules"

If rmmod never returns, alt-sysrq-t output should show us where it got 
stuck.

> 2) Sometimes (randomly it seems) the system doesn't detect any usb 
>    devices:  I have an external HD and a Logitech mouse. Sometimes they 
>    are recognized, sometimes not.  Unplugging and re-plugging them 
>    doesn't help. lsusb shows no attached device.

Compiling with CONFIG_USB_DEBUG and sending report to 
linux-usb@...r.kernel.org with the output included might be a good start.

-- 
Jiri Kosina
SUSE Labs

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