APPLIED: [X][SRU][PATCH 0/1] selftests/cpu-hotplug: exit with failure when test occured unexpected behaviors

[Khaled Elmously]

On 2018-12-25 18:41:47 , Po-Hsu Lin wrote:
> BugLink: https://bugs.launchpad.net/bugs/1809699
> 
> == SRU Justification ==
> This cpu-hotplug test will always return PASSED even if there are some failures there:
> 
> $ sudo make -C linux/tools/testing/selftests TARGETS=cpu-hotplug run_tests
> make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests'
> for TARGET in cpu-hotplug; do \
>  make -C $TARGET; \
> done;
> make[1]: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/cpu-hotplug'
> make[1]: Nothing to be done for 'all'.
> make[1]: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/cpu-hotplug'
> for TARGET in cpu-hotplug; do \
>  make -C $TARGET run_tests; \
> done;
> make[1]: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/cpu-hotplug'
> pid 25001's current affinity mask: 3
> pid 25001's new affinity mask: 1
> CPU online/offline summary:
>   Cpus in online state: 0-1
>   Cpus in offline state: 2
> Limited scope test: one hotplug cpu
>   (leaves cpu in the original state):
>   online to offline to online: cpu 1
>   offline to online to offline: cpu 2
> ./cpu-on-off-test.sh: line 78: /sys/devices/system/cpu/cpu2/online: No such file or directory
> online_cpu_expect_success 2: unexpected fail
> ./cpu-on-off-test.sh: line 83: /sys/devices/system/cpu/cpu2/online: No such file or directory
> offline_cpu_expect_success 2: unexpected fail
> selftests: cpu-on-off-test.sh [PASS]
> make[1]: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/cpu-hotplug'
> make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests'
> 
> == Fixes ==
> 8fe6e53a8ed5f0 (selftests/cpu-hotplug: exit with failure when test occured unexpected behaviors)
> 
> For newer releases, they already have this patch.
> For Trusty and older release, they will need more work to get this patch.
> 
> == Regression Potential ==
> None, fix for testing tools.
> 
> 
> Li Zhijian (1):
>   selftests/cpu-hotplug: exit with failure when test occured unexpected
>     behaviors
> 
>  tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> -- 
> 2.7.4
> 
> 
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