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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug external/31520] [gdb/external] Handle kernel.yama.ptrace_scope
 != 0
Date: Thu, 21 Mar 2024 14:33:31 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D31520

--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
Running:
...
$ ./sudo-allow-ptrace.sh ./scripts/test.sh
...
revealed some issues.

1. Core tests fail, ulimit -c dropped from unlimited (normally set in
~$USER/.bashrc) to 0:
...
(gdb) shell ulimit -Sc
0
(gdb) shell ulimit -Hc
0
...

2. $HOME is set to /root, so we run into:
...
(gdb) shell cd
bash: line 0: cd: /root: Permission denied
...
in gdb.base/default.exp and gdb.base/set-cwd.exp.  Some gdb.guile/*.exp tes=
ts
fails may be caused by the same problem.

3. An attach-specific failure:
...
(gdb) attach 27466^M
Attaching to process 27466^M
No executable file now.^M
warning: Could not load vsyscall page because no executable was specified^M
0x00007f18b597f0ca in ?? ()^M
(gdb) FAIL: gdb.base/attach-deleted-exec.exp: attach to process with deleted
executable
...

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