linux-kernel - Re: 2.6.38-rc6: SysRq broken?

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Message-ID: <20110228225003.2cb4f62d@neptune.home>
Date:	Mon, 28 Feb 2011 22:50:03 +0100
From:	Bruno Prémont <bonbons@...ux-vserver.org>
To:	Alexey Dobriyan <adobriyan@...il.com>
Cc:	dmitry.torokhov@...il.com, linux-kernel@...r.kernel.org
Subject: Re: 2.6.38-rc6: SysRq broken?

On Mon, 28 February 2011 Alexey Dobriyan <adobriyan@...il.com> wrote:
> It just strikes me that SysRq is broken here:
> Alt+SysRq+h doesn't print anything
> 
> CONFIG_MAGIC_SYSRQ=y
> CONFIG_INPUT_EVDEV=y
> kernel.sysrq=1
> echo h >/proc/sysrq-trigger works
> 
> Keyboard is USB one, "Logitech HID compliant keyboard".

I've seen same kind of issue with built-in keybaord (PS2) of my laptop.

Sysrq-Sync, Sysrq-Umount, Sysrq-Help didn't work but Sysrq-reBoot did.

In my case it was during "stuck" shutdown process, caps key was still
working and toggled caps LED anything else didn't trigger anything visible.

Bruno
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