On 2018-05-30 00:56, okaya@xxxxxxxxxxxxxx wrote:
On 2018-05-30 00:48, Greg Kroah-Hartman wrote:
On Wed, May 30, 2018 at 12:44:29AM -0700, okaya@xxxxxxxxxxxxxx wrote:
On 2018-05-30 00:37, Christoph Hellwig wrote:
> On Tue, May 29, 2018 at 09:41:33PM -0700, Sinan Kaya wrote:
> > Bjorn and I discussed the need for such a "safe" mode feature when you
> > want to bring up PCI for a platform. You want to turn off everything
> > as
> > a starter and just stick to bare minimum.
>
> Can we please make it a config option the instead of adding code
> to every kernel? Also maybe the bringup should be in the name
> to make this more clear?
One other requirement was to have a runtime option rather than
compile time
option.
When someone reported a problem, we wanted to be able to say "use
this
option and see if system boots" without doing any bisects or
recompilation.
This would be the first step in troubleshooting a system to see if
fundamental features are working.
That makes sense, people can not rebuild their kernels for the most
part. Putting it behind a config option would not make sense as it
would always have to be enabled.
Here is where the discussion took place. Last 5-10 messages should
help.
https://bugzilla.kernel.org/show_bug.cgi?id=196197
Some more paper trail for general awareness.
https://lkml.org/lkml/2018/5/3/509
I don't mind changing the name Bjorn mentioned safe option. I made it
safemode. I am looking at Bjorn for suggestions at this moment.
"minimal"? "basic"? "crippled"?
"my_hardware_is_so_borked_it_needs_this_option"? :)
Naming is hard...
greg k-h
