On Wed, Sep 1, 2010 at 12:57, Rui Paulo <rpa...@freebsd.org> wrote: > 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 have no other VM or real hardware available at the moment. >> 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. It is reproducible every time. But I too have no idea how to tackle this. _______________________________________________ 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"
