Hi,
In regards to the instruction tracing probe points that were added to SystemTap
last year, Frank had asked whether the block-trace functionality (.insn.block)
is working. I tested this on x86_64/Fedora 10 and, indeed, it does work.
However, when testing on a ppc64 system, it failed
The bug is in your module's unconditional use of UTRACE_*STEP.
It's documented that it's invalid to use them unless arch_has_*_step()
has returned true. (The utrace_resume_action description refers you
to utrace_control(), where this is documented.)
It's a bug to use these at all when the