lkml.org 
[lkml]   [2018]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] vsprintf: Add command line option debug_boot_weak_hash
From
Date
On 05/14/2018 09:38 PM, Tobin C. Harding wrote:

> Documentation/admin-guide/kernel-parameters.txt | 8 ++++++++
> lib/vsprintf.c | 18 ++++++++++++++++++
> 2 files changed, 26 insertions(+)
>
> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
> index 3b8032431585..c95dd6704592 100644
> --- a/Documentation/admin-guide/kernel-parameters.txt
> +++ b/Documentation/admin-guide/kernel-parameters.txt
> @@ -748,6 +748,14 @@
>
> debug [KNL] Enable kernel debugging (events log level).
>
> + debug_boot_weak_hash
> + [KNL] Enable debugging early in the boot sequence. If

That makes it sound like "debug_boot_weak_hash" turns on early debugging.

> + enabled, we use a weak hash instead of siphash to hash
> + pointers. Use this option if you need to see pointer
> + values during early boot (i.e you are seeing instances

i.e.

> + of '(___ptrval___)') - cryptographically insecure,
> + please do not use on production kernels.
> +
> debug_locks_verbose=
> [KNL] verbose self-tests
> Format=<0|1>


--
~Randy

\
 
 \ /
  Last update: 2018-05-15 17:30    [W:0.067 / U:4.472 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site