Am Sun, May 02, 2021 at 11:49:10PM +0200 schrieb Why 42? The lists account.: > > Actually I do notice one thing, having just upgraded to: > kern.version=OpenBSD 6.9-current (GENERIC.MP) #492: Sat May 1 17:37:28 MDT > 2021 > > I checked the output from dmesg and I have a new boot time message: > dt: 443 probes > > man dt tells me that dt is dynamic tracing and that I can enable it by > setting kern.allowdt. > > 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. > What am I missing? > > Cheers, > Robb. > > FYI: This is on an Intel NUC: > bios0 at mainbus0: SMBIOS rev. 3.2 @ 0x7a9a4000 (77 entries) > bios0: vendor Intel Corp. version "BECFL357.86A.0087.2020.1209.1115" date > 12/09/2020 > bios0: Intel(R) Client Systems NUC8i5BEH >
