Re: [PATCH] Adding ctrl-o sysrq hack support to 8250 driver

From: Olaf Hering
Date: Fri Dec 09 2005 - 10:33:53 EST


On Fri, Dec 09, Erik Mouw wrote:

> > 'ctrl o' is currently mapped to 'flush output', see 'stty -a'
>
> Eww... If you can't use a serial break, why can't you use an
> established control character like ctrl-] (telnet) or [enter]~ (ssh) ?

There are many ways to get to the console session on the HMC. One is
ssh. But maybe this would work somehow.

> If you really want to use ctrl-o, could you make a way that pressing
> ctrl-o twice sends a single ctrl-o to the process attached to the
> console?

Sounds good. Have to check how to handle that.

> If it is a POWER4-only problem, why isn't there a dependency on
> CONFIG_POWER4 over here? I don't like to have the ctrl-o sysrq stuff
> enabled on my regular PC if it only matters to some rare (in absolute
> numbers) system.

More CONFIG_PPC_PSERIES, the mentioned option is for gcc optimization.

--
short story of a lazy sysadmin:
alias appserv=wotan
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