On 1 Sep 2010, at 11:20, Marius Nünnerich wrote: > On Wed, Sep 1, 2010 at 00:21, Rui Paulo <rpa...@freebsd.org> wrote: >> Hi, >> The DTrace userland project is near completion and you can start using parts >> of it right away (only on FreeBSD HEAD right now). >> >> For more information on how to use DTrace with userland, please read: >> http://wiki.freebsd.org/DTrace/userland > > Hi, > > I set this up in a VirtualBox with 9-current r212073 amd64, 4-cores, > amd-v and nested paging enabled. > I tried > dtruss /usr/bin/true > it works but is really slow, it takes ~10s to switch vt.
This is not really using the new userland dtrace code, but the old one. I suspect DTrace has a problem running on your system. Can you try a different VM software or real hardware? I never experienced this problem on VMWare Fusion. > I tried the pid example as well, if I execute it on ttyv0 I can see lots of > kernel trap 12 with interrupts disabled > messages flying by and inbetween the desired _sleep:entry probes. When > I execute that script on ttyv1 I obviously don't see the kernel trap > messages and the machine kindof locks up (no output at all). I can do > a clean ACPI shutdown though. This looks like I race that I haven't fixed yet. Either way, if the VM is interfering, then it will be hard to find out how to fix this. Regards, -- Rui Paulo _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"