Re: [RFC/RFT] Reinject Alt+SysRq when no hotkeys have been pressed

[Jason Wessel <jason.wessel@windriver.com>]

On 11/09/2010 01:34 AM, Dmitry Torokhov wrote:
> Now that KGDB knows how to release keys that have been pressed when
> entering the debugger the only issue left is that SysRq handler is too
> greedy and always swallows Alt+SysRq, causing print screen hotkey to
> stop working. The solution is to re-inject the key combo when user
> releases SysRq without pressing any other keys. The patch below does
> just that and also releases keys that have been pressed before we enter
> SysRq mode.
>
> Note that it depends on a patch to input core that will stop events
> injected by one input handler from reaching the very same input handler
> (attached).
>
> Comments/testing/suggestion are sought after.
>   

I applied both patches and tested all the known failures cases I had on
my list and it looks good, for the non kdb cases.

Tested-by: Jason Wessel <jason.wessel@windriver.com>

However...  I also tested this with the kdb keyboard release patchs plus
your latest 2 patches we appear to have and incompatibility.  The
behavior is that when exiting kdb, the print screen trigger fires.  I
had not had a chance to debug it as of yet.

Jason.