ufunc() doesn't work

[Mark Johnston]

On Wed, Oct 29, 2014 at 11:30:37PM +0500, Eugene M. Zheganin wrote:
> Hi.
> 
> On 24.10.2014 23:54, Mark Johnston wrote:
> > ufunc() is available in stable/10 as of r273595.
> I've just updated my system to r273822:
> 
> [root at taiga:~]# uname -a
> FreeBSD taiga 10.1-PRERELEASE FreeBSD 10.1-PRERELEASE #0 r273822: Wed 
> Oct 29 23:20:55 YEKT 2014 emz at taiga:/usr/obj/usr/src/sys/TAIGA  amd64
> 
> The world and kernel are in sync. I'm still running the kernel built 
> after the same config as before. But, unfortunately, I've missed the 
> ability to run dtrace scripts. What have I missed ?

Kind of a silly request, but could you try rebuilding your kernel a second
time? There were some changes to the ctf tools necessitated by the clang
3.4 import, and your kernel might contain CTF data emitted by the ctf
tools before they were rebuilt. That can cause the problems you're
seeing. Rebuilding a second time will cause the updated tools to be
used.

-Mark

> 
> [root at taiga:~]# config -x /boot/kernel/kernel | egrep -i 'debug|kdtrace|ctf'
> makeoptions     WITH_CTF=1
> makeoptions     DEBUG=-g
> options ALTQ_DEBUG
> options USB_DEBUG
> options IEEE80211_DEBUG
> options DDB_CTF
> options KDTRACE_HOOKS
> options KDTRACE_FRAME
> [root at taiga:~]# kldload dtraceall
> kldload: can't load dtraceall: module already loaded or in kernel
> [root at taiga:~]# dtrace -l | head
>     ID   PROVIDER            MODULE                          FUNCTION NAME
>      1     dtrace BEGIN
>      2     dtrace END
>      3     dtrace ERROR
>      4        fbt            kernel                camstatusentrycomp entry
>      5        fbt            kernel                camstatusentrycomp return
>      6        fbt            kernel            cam_compat_handle_0x17 entry
>      7        fbt            kernel            cam_compat_handle_0x17 return
>      8        fbt            kernel                   cam_periph_done entry
>      9        fbt            kernel                     camperiphdone entry
> [root at taiga:~]# dtrace -n 'syscall:::entry { @num[execname] = count(); }'
> dtrace: invalid probe specifier syscall:::entry { @num[execname] = 
> count(); }: "/usr/lib/dtrace/psinfo.d", line 37: failed to copy type of 
> 'pr_uid': Type information is in parent and unavailable
> [root at taiga:~]#
> 
> Thanks.
> Eugene.
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