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

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Date:	Sun, 26 Oct 2008 08:25:39 +0100
From:	"Mikko C." <mikko.cal@...il.com>
To:	Jiri Kosina <jkosina@...e.cz>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Random problems with 2.6.28-rc1-git1

Jiri Kosina ha scritto:
> 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.
>
>   
Thanks for your answer
I tried Alt-Sysrq-T after a rmmod, but all I get is:
"SysRq : Show State"

Is it normal? Does it dump the information to a log?
Sorry but I never used sysrq in the past.

>> 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.
>   
Ok, done: http://marc.info/?l=linux-usb&m=122500580917403&w=2

Thanks
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