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selftests/vsock: add vm_dmesg_{warn,oops}_count() helpers

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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>
Link: https://patch.msgid.link/20260121-vsock-vmtest-v16-7-2859a7512097@meta.com
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Bobby Eshleman
2026-01-21 14:11:47 -08:00
committed by Paolo Abeni
parent fd1b41725d
commit 4e870ac81d
1 changed files with 15 additions and 4 deletions
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19
tools/testing/selftests/vsock/vmtest.sh
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@@ -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 "init_ns" -- dmesg | grep -c -i 'Oops')
vm_warn_cnt_before=$(vm_ssh "init_ns" -- dmesg --level=warn | grep -c -i 'vsock')
vm_oops_cnt_before=$(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 "init_ns" -- 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=$(vm_ssh "init_ns" -- dmesg --level=warn | grep -c -i 'vsock')
vm_warn_cnt_after=$(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