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From: "halamour at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug runtime/30599] New: Stap probe does not terminate on Kernel
 Version 6.3
Date: Fri, 30 Jun 2023 20:41:46 +0000
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X-Bugzilla-Product: systemtap
X-Bugzilla-Component: runtime
X-Bugzilla-Version: unspecified
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X-Bugzilla-Who: halamour at redhat dot com
X-Bugzilla-Status: NEW
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X-Bugzilla-Priority: P2
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D30599

            Bug ID: 30599
           Summary: Stap probe does not terminate on Kernel Version 6.3
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
          Assignee: systemtap at sourceware dot org
          Reporter: halamour at redhat dot com
  Target Milestone: ---

When using fedora kernel version 6.3.6-200.fc38.x86_64, running any SystemT=
ap
script with IO will not terminate after Pass 5: starting run unless forced =
to.=20=20

e.g.=20=20
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=3Dauto stap

Output of lsmod | grep stap
stap_b9eef644af3bff3c851557a1748735a_4292    77824  1
stap_b9eef644af3bff3c851557a1748735a_4241    77824  1

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