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UnixPB: Set ptrace_scope value to 0 in Ubuntu #3520

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merged 2 commits into from
Apr 30, 2024
Merged

UnixPB: Set ptrace_scope value to 0 in Ubuntu #3520

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UnixPB: Set ptrace_scope value to 0 in Ubuntu
aswinkr77 Apr 15, 2024
9d46fe6
Merge branch 'master' into ptrace
karianna Apr 30, 2024
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26 changes: 18 additions & 8 deletions ansible/playbooks/AdoptOpenJDK_Unix_Playbook/roles/performance_tools/tasks/main.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -7,9 +7,8 @@
###########################################

- name: Install gdb & valgrind
become: yes
become: true
package:
update_cache: yes
name: ['gdb', 'valgrind']
state: latest
when: ansible_distribution == "Ubuntu" or
Expand All @@ -19,16 +18,15 @@
tags: performance_tools

- name: Install Perf (except Ubuntu)
become: yes
become: true
package:
update_cache: yes
name: perf
state: latest
when: ansible_distribution != "Ubuntu"
tags: performance_tools

- name: Perf installation (Ubuntu)
become: yes
become: true
when: ansible_distribution == "Ubuntu"
tags: performance_tools
block:
Expand All @@ -42,17 +40,29 @@

- name: Install perf (Ubuntu)
package:
update_cache: yes
name: ['linux-tools-common', 'linux-tools-generic', 'linux-tools-{{ uname.stdout }}']
state: latest
when: "'linux-tools-'~uname.stdout in linux_tools.stdout" # ~ -> concatenates string

- name: Install nmon (except Rhel 7/CentOS 7 s390x) #nmon needs epel repo
become: yes
become: true
package:
update_cache: yes
name: nmon
state: latest
when: not (ansible_distribution_major_version == "7" and ansible_architecture == "s390x" and
(ansible_distribution == "RedHat" or ansible_distribution == "CentOS"))
tags: performance_tools

- name: Set ptrace_scope value in Ubuntu
become: true
when: ansible_distribution == "Ubuntu"
tags: performance_tools
block:
- name: Set ptrace_scope value to 0 in Ubuntu
shell: echo 0 | dd of=/proc/sys/kernel/yama/ptrace_scope

- name: Set ptrace_scope value persistant across reboot
lineinfile:
path: /etc/sysctl.d/10-ptrace.conf
regexp: '^kernel.yama.ptrace_scope'
line: kernel.yama.ptrace_scope = 0
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