** Tags added: 5.4 sru-20210510
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https://bugs.launchpad.net/bugs/1923191
Title:
cpuhotplug from ubuntu_ltp failed for cpuhotplug02 cpuhotplug03
cpuhotplug04 cpuhotplug06
Status in ubuntu-kernel-tests:
New
Status in linux-azure package in Ubuntu:
New
Status in linux-azure-4.15 package in Ubuntu:
New
Status in linux-azure source package in Trusty:
New
Status in linux-azure-4.15 source package in Trusty:
New
Status in linux-azure source package in Xenial:
New
Status in linux-azure-4.15 source package in Xenial:
New
Status in linux-azure source package in Bionic:
New
Status in linux-azure-4.15 source package in Bionic:
New
Bug description:
cpuhotplug02:
Name: cpuhotplug02
Date: Tue Mar 30 13:32:56 UTC 2021
Desc: What happens to a process when its CPU is offlined?
CPU is 1
sh: echo: I/O error
cpuhotplug02 1 TFAIL: process did not change from CPU 1
tag=cpuhotplug02 stime=1617111176 dur=5 exit=exited stat=1 core=no cu=2
cs=2
startup='Tue Mar 30 13:33:06 2021'
cpuhotplug03:
Name: cpuhotplug03
Date: Tue Mar 30 13:33:06 UTC 2021
Desc: Do tasks get scheduled to a newly on-lined CPU?
CPU is 1
sh: echo: I/O error
cpuhotplug03 1 TBROK: CPU1 cannot be offlined
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 20613 0.0 0.0 4636 864 ? R 13:33 0:00 /bin/sh
/opt/ltp/testcases/bin/cpuhotplug_do_spin_loop
root 20614 0.0 0.0 4636 812 ? R 13:33 0:00 /bin/sh
/opt/ltp/testcases/bin/cpuhotplug_do_spin_loop
root 20615 0.0 0.0 4636 812 ? R 13:33 0:00 /bin/sh
/opt/ltp/testcases/bin/cpuhotplug_do_spin_loop
root 20616 0.0 0.0 4636 880 ? R 13:33 0:00 /bin/sh
/opt/ltp/testcases/bin/cpuhotplug_do_spin_loop
root 20620 0.0 0.0 14864 1092 ? S 13:33 0:00 grep cpuhotplug_do_spin_loop
cpuhotplug03 1 TINFO: Onlining CPU 1
1 /bin/sh /opt/ltp/testcases/bin/cpuhotplug_do_spin_loop
1 /bin/sh /opt/ltp/testcases/bin/cpuhotplug_do_spin_loop
0 /bin/sh /opt/ltp/testcases/bin/cpuhotplug_do_spin_loop
0 /bin/sh /opt/ltp/testcases/bin/cpuhotplug_do_spin_loop
cpuhotplug03 1 TPASS: 2 cpuhotplug_do_spin_loop processes found on CPU1
tag=cpuhotplug03 stime=1617111186 dur=2 exit=exited stat=2 core=no cu=242
cs=38
startup='Tue Mar 30 13:33:08 2021'
cpuhotplug04:
Name: cpuhotplug04
Date: Tue Mar 30 13:33:08 UTC 2021
Desc: Does it prevent us from offlining the last CPU?
sh: echo: I/O error
cpuhotplug04 1 TFAIL: Could not offline cpu1
tag=cpuhotplug04 stime=1617111188 dur=0 exit=exited stat=1 core=no cu=4
cs=4
startup='Tue Mar 30 13:33:08 2021'
cpuhotplug06
Name: cpuhotplug06
Date: Tue Mar 30 13:33:08 UTC 2021
Desc: Does top work properly when CPU hotplug events occur?
CPU is 1
sh: echo: I/O error
cpuhotplug06 1 TBROK: CPU1 cannot be offlined
20913 ? 00:00:00 top
tag=cpuhotplug06 stime=1617111188 dur=1 exit=exited stat=2 core=no cu=2
cs=3
startup='Tue Mar 30 13:33:15 2021'
http://10.246.72.46/4.15.0-1112.125-azure/bionic-linux-azure-4.15-azure-amd64-4.15.0-Basic_A2-ubuntu_ltp/ubuntu_ltp/results/ubuntu_ltp.cpuhotplug/debug/ubuntu_ltp.cpuhotplug.DEBUG.html
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