From: Bobby Eshleman <[email protected]>

Sometimes VMs will have some intermittent dmesg warnings that are
unrelated to vsock. Change the dmesg parsing to filter on strings
containing 'vsock' to avoid false positive failures that are unrelated
to vsock. The downside is that it is possible for some vsock related
warnings to not contain the substring 'vsock', so those will be missed.

Fixes: a4a65c6fe08b ("selftests/vsock: add initial vmtest.sh for vsock")
Signed-off-by: Bobby Eshleman <[email protected]>
---
 tools/testing/selftests/vsock/vmtest.sh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/vsock/vmtest.sh 
b/tools/testing/selftests/vsock/vmtest.sh
index a312930cb8b7..aa7199c94780 100755
--- a/tools/testing/selftests/vsock/vmtest.sh
+++ b/tools/testing/selftests/vsock/vmtest.sh
@@ -506,9 +506,9 @@ run_shared_vm_test() {
        local rc
 
        host_oops_cnt_before=$(dmesg | grep -c -i 'Oops')
-       host_warn_cnt_before=$(dmesg --level=warn | wc -l)
+       host_warn_cnt_before=$(dmesg --level=warn | grep -c -i 'vsock')
        vm_oops_cnt_before=$(vm_ssh -- dmesg | grep -c -i 'Oops')
-       vm_warn_cnt_before=$(vm_ssh -- dmesg --level=warn | wc -l)
+       vm_warn_cnt_before=$(vm_ssh -- dmesg --level=warn | grep -c -i 'vsock')
 
        name=$(echo "${1}" | awk '{ print $1 }')
        eval test_"${name}"
@@ -520,7 +520,7 @@ run_shared_vm_test() {
                rc=$KSFT_FAIL
        fi
 
-       host_warn_cnt_after=$(dmesg --level=warn | wc -l)
+       host_warn_cnt_after=$(dmesg --level=warn | grep -c -i vsock)
        if [[ ${host_warn_cnt_after} -gt ${host_warn_cnt_before} ]]; then
                echo "FAIL: kernel warning detected on host" | log_host
                rc=$KSFT_FAIL
@@ -532,7 +532,7 @@ run_shared_vm_test() {
                rc=$KSFT_FAIL
        fi
 
-       vm_warn_cnt_after=$(vm_ssh -- dmesg --level=warn | wc -l)
+       vm_warn_cnt_after=$(vm_ssh -- dmesg --level=warn | grep -c -i vsock)
        if [[ ${vm_warn_cnt_after} -gt ${vm_warn_cnt_before} ]]; then
                echo "FAIL: kernel warning detected on vm" | log_host
                rc=$KSFT_FAIL

-- 
2.47.3


Reply via email to