On Wed, 16 Aug 2006 23:05:33 +0200
"Rafael J. Wysocki" <[email protected]> wrote:
> Remove the CONFIG_PM_TRACE option, which is dangerous and should only be used
> by people who know exactly what they are doing, from kernel/power/Kconfig .
>
> Signed-off-by: Rafael J. Wysocki <[email protected]>
> Acked-by: Pavel Machek <[email protected]>
> ---
> kernel/power/Kconfig | 18 ------------------
> 1 files changed, 18 deletions(-)
>
> Index: linux-2.6.18-rc4-mm1/kernel/power/Kconfig
> ===================================================================
> --- linux-2.6.18-rc4-mm1.orig/kernel/power/Kconfig
> +++ linux-2.6.18-rc4-mm1/kernel/power/Kconfig
> @@ -47,24 +47,6 @@ config PM_DISABLE_CONSOLE_SUSPEND
> suspend/resume routines, but may itself lead to problems, for example
> if netconsole is used.
>
> -config PM_TRACE
> - bool "Suspend/resume event tracing"
> - depends on PM && PM_DEBUG && X86_32 && EXPERIMENTAL
> - default n
> - ---help---
> - This enables some cheesy code to save the last PM event point in the
> - RTC across reboots, so that you can debug a machine that just hangs
> - during suspend (or more commonly, during resume).
> -
> - To use this debugging feature you should attempt to suspend the machine,
> - then reboot it, then run
> -
> - dmesg -s 1000000 | grep 'hash matches'
> -
> - CAUTION: this option will cause your machine's real-time clock to be
> - set to an invalid time after a resume.
> -
> -
> config SOFTWARE_SUSPEND
> bool "Software Suspend"
> depends on PM && SWAP && (X86 && (!SMP || SUSPEND_SMP)) || ((FRV || PPC32) && !SMP)
So... how are people supposed to turn it on again? By patching the
kernel? That's a bit painful if they're using (say) fedora-of-the-day.
How about we add a kernel boot parameter to enable it at runtime?
-
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