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From: "agentzh at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug bpf/27030] bpf: user_long_error() leads to assertion failures
 in the translator
Date: Mon, 07 Dec 2020 20:29:37 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D27030

--- Comment #2 from agentzh <agentzh at gmail dot com> ---
Tried the same example on an older kernel on Fedora 28 x86_64. Same thing:

```
[agentzh@glass ~/git/systemtap.new 1 (master)]$ /opt/stap/bin/stap --bpf -c
/tmp/a.out -e 'probe process("/tmp/a.out").function("main") { println("a: ",
user_long_error(0x601020)) exit() }'
stap: staptree.h:1349: virtual update_visitor::~update_visitor(): Assertion
`values.empty()' failed.
Aborted (core dumped)

[agentzh@glass ~/git/systemtap.new 134 (master)]$ cat /proc/version
Linux version 5.0.16-100.fc28.x86_64
(mockbuild@bkernel04.phx2.fedoraproject.org) (gcc version 8.3.1 20190223 (R=
ed
Hat 8.3.1-2) (GCC)) #1 SMP Tue May 14 18:22:28 UTC 2019

[agentzh@glass ~/git/systemtap.new 0 (master)]$ /opt/stap/bin/stap -V
Systemtap translator/driver (version 4.5/0.177, commit
release-4.4-24-g3e0d449fe427 + changes)
Copyright (C) 2005-2020 Red Hat, Inc. and others
This is free software; see the source for copying conditions.
tested kernel versions: 2.6.32 ... 5.10.0-rc
enabled features: BOOST_STRING_REF DYNINST BPF LIBSQLITE3 LIBXML2 NLS READL=
INE
```

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