Stap gets stuck on Kernel Version 6.3

[Housam Alamour]

I can interrupt the process, but cannot get an output or termination.

On Tue, Jun 20, 2023 at 3:59 PM Housam Alamour <halamour@redhat.com> wrote:

> When using fedora kernel version 6.3.6-200.fc38.x86_64, running any
> SystemTap script with IO will get stuck at Pass 5: starting run.
> (e.g.
> probe begin
> { print ("hello world\n")
> exit () }
> )
>
> Upon downgrading to 6.2.15-300.fc38.x86_64 problem does not appear.
> Possibly related to stapio.
>
> Output of ps aux | grep stap
> halamour    4241  0.1  0.0      0     0 pts/0    Zl   15:48   0:00
> [stapio] <defunct>
> halamour    4291  4.0  0.9 542516 300152 pts/0   S+   15:48   0:00 stap -v
> hello-world.stp
> halamour    4292  0.1  0.0      0     0 pts/0    Zl+  15:48   0:00
> [stapio] <defunct>
> halamour    4358  0.0  0.0 222408  2176 pts/1    S+   15:49   0:00 grep
> --color=auto stap
>
> Output of lsmod | grep stap
> stap_b9eef644af3bff3c851557a1748735a_4292    77824  1
> stap_b9eef644af3bff3c851557a1748735a_4241    77824  1
>