diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2026-02-27 20:13:05 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-03-03 05:21:16 +0300 |
| commit | c7b228418e8b34282d266ffeef59996434a73b32 (patch) | |
| tree | 6fe9d77dc920763244c23db84ab8652872630d3d /tools/testing | |
| parent | 67792dde27a66fa6dc262d5e2ee8260096a9deb3 (diff) | |
| download | linux-c7b228418e8b34282d266ffeef59996434a73b32.tar.xz | |
selftests: drv-net: iou-zcrx: allocate hugepages for large chunks test
The large chunks test needs 2MB hugepages for its mmap allocation,
but the test system may not have any pre-allocated. Ensure at least
64 hugepages are available before running the test, and restore the
original value on cleanup.
While at it strip the stdout, it has a trailing new line.
Before: ok 5 iou-zcrx.test_zcrx_large_chunks # SKIP Can't allocate huge pages
Link: https://patch.msgid.link/20260227171305.2848240-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/testing')
| -rwxr-xr-x | tools/testing/selftests/drivers/net/hw/iou-zcrx.py | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/tools/testing/selftests/drivers/net/hw/iou-zcrx.py b/tools/testing/selftests/drivers/net/hw/iou-zcrx.py index 1649c23e05e2..66dd496ec5cf 100755 --- a/tools/testing/selftests/drivers/net/hw/iou-zcrx.py +++ b/tools/testing/selftests/drivers/net/hw/iou-zcrx.py @@ -135,13 +135,21 @@ def test_zcrx_large_chunks(cfg) -> None: cfg.require_ipver('6') + hp_file = "/proc/sys/vm/nr_hugepages" + with open(hp_file, 'r+', encoding='utf-8') as f: + nr_hugepages = int(f.read().strip()) + if nr_hugepages < 64: + f.seek(0) + f.write("64") + defer(lambda: open(hp_file, 'w', encoding='utf-8').write(str(nr_hugepages))) + single(cfg) rx_cmd = f"{cfg.bin_local} -s -p {cfg.port} -i {cfg.ifname} -q {cfg.target} -x 2" tx_cmd = f"{cfg.bin_remote} -c -h {cfg.addr_v['6']} -p {cfg.port} -l 12840" probe = cmd(rx_cmd + " -d", fail=False) if probe.ret == SKIP_CODE: - raise KsftSkipEx(probe.stdout) + raise KsftSkipEx(probe.stdout.strip()) with bkg(rx_cmd, exit_wait=True): wait_port_listen(cfg.port, proto="tcp") |