Re: [PATCH] Adding ctrl-o sysrq hack support to 8250 driver
From: Russell King
Date: Fri Dec 09 2005 - 09:10:27 EST
On Fri, Dec 09, 2005 at 03:05:59PM +0100, Olaf Hering wrote:
>
> If you can queue this up in -mm for a decade or two, just to make sure
> it doesnt make some setup unhappy.
>
>
> a POWER4 system in 'full-system-partition' mode has the console device
> on ttyS0. But the user interface to the Linux system console may still
> be on the hardware management console (HMC). If this is the case, there
> is no way to send a break to trigger a sysrq.
> Other setups do already use 'ctrl o' to trigger sysrq. This includes iSeries
> virtual console on tty1, and pSeries LPAR console on hvc0 or hvsi0.
>
> 'ctrl o' is currently mapped to 'flush output', see 'stty -a'
I still strongly disagree with the idea of using a well defined
control character which already has an expected purpose for this.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
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