On Tue 25-09-18 13:20:12, Alexander Duyck wrote:
+ vm_debug[=options] [KNL] Available with CONFIG_DEBUG_VM=y.
+ May slow down system boot speed, especially when
+ enabled on systems with a large amount of memory.
+ All options are enabled by default, and this
+ interface is meant to allow for selectively
+ enabling or disabling specific virtual memory
+ debugging features.
+ Available options are:
+ P Enable page structure init time poisoning
+ - Disable all of the above options
I agree with Dave that this is confusing as hell. So what does vm_debug
(without any options means). I assume it's NOP and all debugging is
enabled and that is the default. What if I want to disable _only_ the
page struct poisoning. The weird lookcing `-' will disable all other
options that we might gather in the future.
Why cannot you simply go with [no]vm_page_poison[=on/off]?