From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <systemtap-return-26218-listarch-systemtap=sources.redhat.com@sourceware.org>
Received: (qmail 94726 invoked by alias); 4 Sep 2018 18:52:58 -0000
Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <systemtap.sourceware.org>
List-Subscribe: <mailto:systemtap-subscribe@sourceware.org>
List-Post: <mailto:systemtap@sourceware.org>
List-Help: <mailto:systemtap-help@sourceware.org>, <http://sourceware.org/lists.html#faqs>
Sender: systemtap-owner@sourceware.org
Received: (qmail 94619 invoked by uid 48); 4 Sep 2018 18:52:53 -0000
From: "agentzh at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug dyninst/23605] New: Intermittent errors when running a simplest stap script against a simplest target program
Date: Tue, 04 Sep 2018 18:52:00 -0000
X-Bugzilla-Reason: AssignedTo
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: systemtap
X-Bugzilla-Component: dyninst
X-Bugzilla-Version: unspecified
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: agentzh at gmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution:
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: systemtap at sourceware dot org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-23605-6586@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-SW-Source: 2018-q3/txt/msg00152.txt.bz2

https://sourceware.org/bugzilla/show_bug.cgi?id=3D23605

            Bug ID: 23605
           Summary: Intermittent errors when running a simplest stap
                    script against a simplest target program
           Product: systemtap
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: dyninst
          Assignee: systemtap at sourceware dot org
          Reporter: agentzh at gmail dot com
  Target Milestone: ---

When running a trivial stap script against a trivial C program process, I
occasionally see the following error:

```
$ stap --runtime=3Ddyninst -c ./a.out a.stp
IRPC on terminated process, ret false!
--SERIOUS-- #124: `=EF=BF=BD3<=EF=BF=BD^?
stapdyn: ERROR: Couldn't load
/tmp/stapsBBcUd/stap_c7fd539785fa2c0bcc7ddfb6321bcd6f_1605.so into the targ=
et
process
WARNING: /opt/stap-plus/bin/stapdyn exited with status: 1
Pass 5: run failed.  [man error::pass5]
```

The a.stp file looks like this:

```
probe process.function("main") {
    println(@var("a"));
}
```

And the C program is like this:

```
int a =3D -32;

int main(void) { a++; return 0; }
```

The C program is compiled with `gcc -g`.

What could go wrong here please?

I'm not Fedora 27 x86_64 (kernel 4.16.16):

```
$ uname -r
4.16.16-200.fc27.x86_64
```

I'm using the current master branch of systemtap.

--=20
You are receiving this mail because:
You are the assignee for the bug.