Todo #9026
closed
PTI checkbox wording can be confusing, should give a little more detail and show current PTI status
Added by Jim Pingle about 6 years ago.
Updated about 6 years ago.
Description
Now that there are Intel CPUs in the wild unaffected by Meltdown, PTI may default to disabled in cases where it is not clear to the user what is happening. The checkbox on system_advanced_misc.php implies that unchecked=on, checked=off, but in reality the option only forces it off, there is no way to force it on.
The wording of the message should also include that it requires a reboot to activate.
- Status changed from New to Feedback
- % Done changed from 0 to 100
Tested on 2.4.5.a.20181011.0014, text for Kernel PTI now reads:
Forcefully disable the kernel PTI Meltdown workaround. If disabled the kernel memory can be accessed by unprivileged users on affected CPUs. This option forces the workaround off, and requires a reboot to activate.
PTI is active by default only on affected CPUs, if PTI is disabled by default then this option will have no effect.
Current PTI status: Enabled
Before it was:
Disable the kernel PTI Meltdown workaround. If disabled the kernel memory can be accessed by unprivileged users on affected CPUs.
- Status changed from Feedback to Resolved
Why even have the option to disable PTI?
Corey Boyle wrote:
Why even have the option to disable PTI?
The user may have a use case where the original problem is not relevant and they need the additional performance.
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