Re: DTrace Brokenness [Solved]

A full clean build resolved the problem. It was likely some incompatible 
CTF or possibly some other patch that touched DTrace that left my obj tree 
in an inconsistent state.


-- 
Cheers,
Cy Schubert <Cy.Schubert@cschubert.com>
FreeBSD UNIX:  <cy@FreeBSD.org>   Web:  https://FreeBSD.org
NTP:           <cy@nwtime.org>    Web:  https://nwtime.org

	The need of the many outweighs the greed of the few.


In message <20220318234704.6C14AED@slippy.cwsent.com>, Cy Schubert writes:
> It's been a while (~ 4-6 months) since I've last used dtrace. Needing to 
> use it again today scripts that worked before fail to.
>
> A first example:
>
> cwfw# cat dt10.d
> #!/usr/sbin/dtrace -s
>
> fbt::ipf_check:entry {
> 	parintf("%x\n", (void) arg[1]);
> }
>
> cwfw# 
>
> Results in this error:
>
> cwfw# ./dt10.d 
> dtrace: failed to compile script ./dt10.d: "/usr/lib/dtrace/psinfo.d", line 
> 1: cannot translate from "struct thread *" to "lwpsinfo_t *"
> cwfw# 
>
> Another example,
>
> slippy# cat dtrace.d 
> #!/usr/sbin/dtrace -s
>
> fbt::uma_reclaim:entry {
> 	printf("in uma_reclaim\n");
> }
> slippy# 
>
> Results in the same error:
>
> slippy# ./dtrace.d 
> dtrace: failed to compile script ./dtrace.d: "/usr/lib/dtrace/psinfo.d", 
> line 1: cannot translate from "struct thread *" to "lwpsinfo_t *"
> slippy# 
>
>
> A variation of the second example,
>
> slippy# cat dtrace.sh 
> #!/bin/sh -
> dtrace -n 'fbt::uma_reclaim:entry { printf("in uma_reclaim\n"); }'
> slippy# 
>
> Results in two errors, the first being that the -n option results in an 
> invalid probe specified and the second being the struct thread * error.
>
> slippy# ./dtrace.sh 
> dtrace: invalid probe specifier fbt::uma_reclaim:entry { printf("in 
> uma_reclaim\n"); }: "/usr/lib/dtrace/psinfo.d", line 1: cannot translate 
> from "struct thread *" to "lwpsinfo_t *"
> slippy# 
>
> I'm not sure if this is related to 2d5d2a986ce or something else.
>
>
> -- 
> Cheers,
> Cy Schubert <Cy.Schubert@cschubert.com>
> FreeBSD UNIX:  <cy@FreeBSD.org>   Web:  https://FreeBSD.org
> NTP:           <cy@nwtime.org>    Web:  https://nwtime.org
>
> 	The need of the many outweighs the greed of the few.
>
>
>