test_cpuset_prs.sh is failing with the following error:

	test_cpuset_prs.sh: line 29: [[: 8
	57%: syntax error in expression (error token is "57%")

This is happening because `lscpu | grep "^CPU(s)"` returns two lines in
some systems (such as Debian unstable):

	# lscpu | grep "^CPU(s)"
	CPU(s):                          8
	CPU(s) scaling MHz:              55%

This is a simple fix that discard the second line.

Signed-off-by: Breno Leitao <leitao@debian.org>
---
 tools/testing/selftests/cgroup/test_cpuset_prs.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/cgroup/test_cpuset_prs.sh b/tools/testing/selftests/cgroup/test_cpuset_prs.sh
index 526d2c42d870..564ca8c33035 100755
--- a/tools/testing/selftests/cgroup/test_cpuset_prs.sh
+++ b/tools/testing/selftests/cgroup/test_cpuset_prs.sh
@@ -25,7 +25,7 @@ WAIT_INOTIFY=$(cd $(dirname $0); pwd)/wait_inotify
 CGROUP2=$(mount -t cgroup2 | head -1 | awk -e '{print $3}')
 [[ -n "$CGROUP2" ]] || skip_test "Cgroup v2 mount point not found!"
 
-CPUS=$(lscpu | grep "^CPU(s)" | sed -e "s/.*:[[:space:]]*//")
+CPUS=$(lscpu | grep "^CPU(s):" | sed -e "s/.*:[[:space:]]*//")
 [[ $CPUS -lt 8 ]] && skip_test "Test needs at least 8 cpus available!"
 
 # Set verbose flag and delay factor
-- 
2.38.1

On Sun, Nov 13, 2022 at 11:44:49AM +0000, Breno Leitao wrote:
> test_cpuset_prs.sh is failing with the following error:
> 
> 	test_cpuset_prs.sh: line 29: [[: 8
> 	57%: syntax error in expression (error token is "57%")
> 
> This is happening because `lscpu | grep "^CPU(s)"` returns two lines in
> some systems (such as Debian unstable):
> 
> 	# lscpu | grep "^CPU(s)"
> 	CPU(s):                          8
> 	CPU(s) scaling MHz:              55%
> 
> This is a simple fix that discard the second line.
> 
> Signed-off-by: Breno Leitao <leitao@debian.org>

Applied to cgroup/for-6.1-fixes.

Thanks.

-- 
tejun

On 11/13/22 17:14, Breno Leitao wrote:
> test_cpuset_prs.sh is failing with the following error:
> 
> 	test_cpuset_prs.sh: line 29: [[: 8
> 	57%: syntax error in expression (error token is "57%")
> 
> This is happening because `lscpu | grep "^CPU(s)"` returns two lines in
> some systems (such as Debian unstable):
> 
> 	# lscpu | grep "^CPU(s)"
> 	CPU(s):                          8
> 	CPU(s) scaling MHz:              55%
> 
> This is a simple fix that discard the second line.
> 
> Signed-off-by: Breno Leitao <leitao@debian.org>

Tested with util-linux v2.38

Reviewed-by: Kamalesh Babulal <kamalesh.babulal@oracle.com>

> ---
>  tools/testing/selftests/cgroup/test_cpuset_prs.sh | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/cgroup/test_cpuset_prs.sh b/tools/testing/selftests/cgroup/test_cpuset_prs.sh
> index 526d2c42d870..564ca8c33035 100755
> --- a/tools/testing/selftests/cgroup/test_cpuset_prs.sh
> +++ b/tools/testing/selftests/cgroup/test_cpuset_prs.sh
> @@ -25,7 +25,7 @@ WAIT_INOTIFY=$(cd $(dirname $0); pwd)/wait_inotify
>  CGROUP2=$(mount -t cgroup2 | head -1 | awk -e '{print $3}')
>  [[ -n "$CGROUP2" ]] || skip_test "Cgroup v2 mount point not found!"
>  
> -CPUS=$(lscpu | grep "^CPU(s)" | sed -e "s/.*:[[:space:]]*//")
> +CPUS=$(lscpu | grep "^CPU(s):" | sed -e "s/.*:[[:space:]]*//")
>  [[ $CPUS -lt 8 ]] && skip_test "Test needs at least 8 cpus available!"
>  
>  # Set verbose flag and delay factor

-- 
Thanks,
Kamalesh