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SubjectRe: [PATCH] kmemtrace: fix kernel parameter documentation
Pekka Enberg wrote:
> From: Pekka Enberg <penberg@cs.helsinki.fi>
>
> The kmemtrace.enable kernel parameter no longer works. To enable
> kmemtrace at
> boot-time, you must pass "ftrace=kmemtrace" instead.

Can someone also list the possible tracers in the ftrace= area, please?

ftrace=[tracer]
[ftrace] will set and start the specified tracer
as early as possible in order to facilitate early
boot debugging.

Thanks.

> Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
> ---
> Documentation/kernel-parameters.txt | 10 ----------
> 1 files changed, 0 insertions(+), 10 deletions(-)
>
> diff --git a/Documentation/kernel-parameters.txt
> b/Documentation/kernel-parameters.txt
> index e87bdbf..9243dd8 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -56,7 +56,6 @@ parameter is applicable:
> ISAPNP ISA PnP code is enabled.
> ISDN Appropriate ISDN support is enabled.
> JOY Appropriate joystick support is enabled.
> - KMEMTRACE kmemtrace is enabled.
> LIBATA Libata driver is enabled
> LP Printer support is enabled.
> LOOP Loopback device support is enabled.
> @@ -1054,15 +1053,6 @@ and is between 256 and 4096 characters. It is
> defined in the file
> use the HighMem zone if it exists, and the Normal
> zone if it does not.
>
> - kmemtrace.enable= [KNL,KMEMTRACE] Format: { yes | no }
> - Controls whether kmemtrace is enabled
> - at boot-time.
> -
> - kmemtrace.subbufs=n [KNL,KMEMTRACE] Overrides the number of
> - subbufs kmemtrace's relay channel has. Set this
> - higher than default (KMEMTRACE_N_SUBBUFS in code) if
> - you experience buffer overruns.
> -
> kgdboc= [HW] kgdb over consoles.
> Requires a tty driver that supports console polling.
> (only serial suported for now)


--
~Randy
LPC 2009, Sept. 23-25, Portland, Oregon
http://linuxplumbersconf.org/2009/


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