Stap gets stuck on Kernel Version 6.3
Housam Alamour
halamour@redhat.com
Tue Jun 20 19:59:09 GMT 2023
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
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