On Wed, 19 Jul 2006 11:16:00 +0200
Rodolfo Giometti <[email protected]> wrote:
> here a little patch to avoid disabling console during suspend stage
> while we are debugging kernel.
>
> ...
>
> --- kernel/power/main.c 2006-07-19 10:54:11.000000000 +0200
> +++ kernel/power/main.c.new 2006-07-18 19:38:41.000000000 +0200
> @@ -86,7 +86,9 @@
> goto Thaw;
> }
>
> +#ifndef CONFIG_DEBUG_KERNEL
> suspend_console();
> +#endif
CONFIG_DEBUG_KERNEL is not really the appropriate thing to use here - it's
more a user-interface/Kconfig level thing.
Can you please describe the problems which suspend_console() are causing?
Some runtime knob might be more appropriate. Perhaps /sys/power/debug?
If the suspend_console() call is to be disabled then you'll want to disable
the matching resume_console() call too.
printk.c needs sem2mutex conversion.
The console_suspended/secondary_console_sem handling is racy. Bad Linus.
But as we're running on a single CPU and all other tasks are frozen it
doesn't matter.
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