From: Bobby Eshleman bobbyeshleman@meta.com

These functions are reused by the VM tests to collect and compare dmesg warnings and oops counts. The future VM-specific tests use them heavily. This patches relies on vm_ssh() already supporting namespaces.

Reviewed-by: Stefano Garzarella sgarzare@redhat.com Signed-off-by: Bobby Eshleman bobbyeshleman@meta.com --- Changes in v11: - break these out into an earlier patch so that they can be used directly in new patches (instead of causing churn by adding this later) --- tools/testing/selftests/vsock/vmtest.sh | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/vsock/vmtest.sh b/tools/testing/selftests/vsock/vmtest.sh index 1d03acb62347..4b5929ffc9eb 100755 --- a/tools/testing/selftests/vsock/vmtest.sh +++ b/tools/testing/selftests/vsock/vmtest.sh @@ -380,6 +380,17 @@ host_wait_for_listener() { fi }

+vm_dmesg_oops_count() { + local ns=$1 + + vm_ssh "${ns}" -- dmesg 2>/dev/null | grep -c -i 'Oops' +} + +vm_dmesg_warn_count() { + local ns=$1 + + vm_ssh "${ns}" -- dmesg --level=warn 2>/dev/null | grep -c -i 'vsock' +}

vm_vsock_test() { local ns=$1 @@ -587,8 +598,8 @@ run_shared_vm_test() {

host_oops_cnt_before=$(dmesg | grep -c -i 'Oops') host_warn_cnt_before=$(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 | grep -c -i 'vsock') + vm_oops_cnt_before=$(vm_dmesg_oops_count "init_ns") + vm_warn_cnt_before=$(vm_dmesg_warn_count "init_ns")

name=$(echo "${1}" | awk '{ print $1 }') eval test_"${name}" @@ -606,13 +617,13 @@ run_shared_vm_test() { rc=$KSFT_FAIL fi

- vm_oops_cnt_after=$(vm_ssh -- dmesg | grep -i 'Oops' | wc -l) + vm_oops_cnt_after=$(vm_dmesg_oops_count "init_ns") if [[ ${vm_oops_cnt_after} -gt ${vm_oops_cnt_before} ]]; then echo "FAIL: kernel oops detected on vm" | log_host rc=$KSFT_FAIL fi

- vm_warn_cnt_after=$(vm_ssh -- dmesg --level=warn | grep -c -i 'vsock') + vm_warn_cnt_after=$(vm_dmesg_warn_count "init_ns") if [[ ${vm_warn_cnt_after} -gt ${vm_warn_cnt_before} ]]; then echo "FAIL: kernel warning detected on vm" | log_host rc=$KSFT_FAIL