lkml.org 
[lkml]   [2006]   [Aug]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 3/3] PM: Remove PM_TRACE from Kconfig
On Wed, 16 Aug 2006 23:05:33 +0200
"Rafael J. Wysocki" <rjw@sisk.pl> 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 <rjw@sisk.pl>
> Acked-by: Pavel Machek <pavel@ucw.cz>
> ---
> 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?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-08-16 23:55    [W:0.041 / U:0.668 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site