On 2021-05-04, Why 42? The lists account. <[email protected]> wrote: > > On Mon, May 03, 2021 at 12:59:27AM +0200, Patrick Wildt wrote: >> > ... >> > But when I do (as root): "sysctl kern.allowdt=1" it returns this error: >> > sysctl: kern.allowdt: Operation not permitted >> >> Similarly to kern.allowkmem, you can only set it when the securelevel is >> still 'low'. That's for security. You need to add kern.allowdt=1 to >> sysctl.conf, and then reboot. Then it'll be enabled after reboot. > > Thanks Patrick! After the reboot I was able to experiment with btrace. > > Do you use it, do you have any examples that might help to get started?
Here's one example: https://marc.info/?l=openbsd-bugs&m=158583371404603&w=2
