NetCube-Systems-Austria/kumquat-buildroot
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

support/testing: add mdadm runtime test

Browse Source 
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Julien Olivain 2024-01-27 23:38:38 +01:00 committed by Peter Korsgaard
parent 9dad5e7d7f
commit 6338bdfc1c
3 changed files with 143 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
DEVELOPERS
View File

@ -1805,6 +1805,8 @@ F: support/testing/tests/package/test_lzip.py
F: support/testing/tests/package/test_lsof.py
F: support/testing/tests/package/test_lz4.py
F: support/testing/tests/package/test_lzop.py
F: support/testing/tests/package/test_mdadm.py
F: support/testing/tests/package/test_mdadm/
F: support/testing/tests/package/test_micropython.py
F: support/testing/tests/package/test_micropython/
F: support/testing/tests/package/test_mtools.py

138
support/testing/tests/package/test_mdadm.py Normal file
View File

@ -0,0 +1,138 @@
import os
import subprocess
import time
import infra.basetest
class TestMdadm(infra.basetest.BRTest):
# This test creates a dm-raid volume with mdadm. A specific Kernel
# need to be built with a config fragment enabling this support.
kernel_fragment = \
infra.filepath("tests/package/test_mdadm/linux-mdadm.fragment")
config = \
f"""
BR2_aarch64=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.75"
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{kernel_fragment}"
BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
BR2_PACKAGE_E2FSPROGS=y
BR2_PACKAGE_MDADM=y
BR2_TARGET_ROOTFS_CPIO=y
BR2_TARGET_ROOTFS_CPIO_GZIP=y
# BR2_TARGET_ROOTFS_TAR is not set
"""
def test_run(self):
# Test configuration:
md_dev = "/dev/md0"
storage_devs = ["/dev/vda", "/dev/vdb", "/dev/vdc"]
storage_size = 16 # Mega Bytes
failing_dev = storage_devs[-1]
mnt_pt = "/mnt/raid-storage"
data_file = f"{mnt_pt}/data.bin"
qemu_storage_opts = []
for i in range(len(storage_devs)):
disk_file = os.path.join(self.builddir, "images", f"disk{i}.img")
self.emulator.logfile.write(f"Creating disk image: {disk_file}\n")
self.emulator.logfile.flush()
subprocess.check_call(
["dd", "if=/dev/zero", f"of={disk_file}",
"bs=1M", f"count={storage_size}"],
stdout=self.emulator.logfile,
stderr=self.emulator.logfile)
opts = ["-drive", f"file={disk_file},if=virtio,format=raw"]
qemu_storage_opts += opts
img = os.path.join(self.builddir, "images", "rootfs.cpio.gz")
kern = os.path.join(self.builddir, "images", "Image")
self.emulator.boot(arch="aarch64",
kernel=kern,
kernel_cmdline=["console=ttyAMA0"],
options=["-M", "virt", "-cpu", "cortex-a57", "-m", "256M",
"-initrd", img] + qemu_storage_opts)
self.emulator.login()
# Test the program can execute.
self.assertRunOk("mdadm --version")
# Show the mdstat, to confirm the Kernel has support and the
# configuration is empty.
cat_mdstat_cmd = "cat /proc/mdstat"
self.assertRunOk(cat_mdstat_cmd)
# We create a raid5 array with the drives.
cmd = f"mdadm --create --verbose {md_dev} --level=5 "
cmd += f"--raid-devices={len(storage_devs)} "
cmd += " ".join(storage_devs)
self.assertRunOk(cmd)
# We show again mdstat, to confirm the array creation. This is
# also for debugging.
self.assertRunOk(cat_mdstat_cmd)
# We format the device as ext4 and mount it.
self.assertRunOk(f"mkfs.ext4 {md_dev}")
self.assertRunOk(f"mkdir -p {mnt_pt}")
self.assertRunOk(f"mount {md_dev} {mnt_pt}")
# We store some random data on this new filesystem. Note: this
# file is slightly larger than a single storage drive. This
# data file should span over two drives and use the raid5.
file_size = storage_size + 4
cmd = f"dd if=/dev/urandom of={data_file} bs=1M count={file_size}"
self.assertRunOk(cmd)
# We compute the hash of our data, and save it for later.
hash_cmd = f"sha256sum {data_file}"
out, ret = self.emulator.run(hash_cmd)
self.assertEqual(ret, 0)
data_sha256 = out[0]
# We run few common mdadm commands.
self.assertRunOk("mdadm --detail --scan")
self.assertRunOk(f"mdadm --query {md_dev}")
self.assertRunOk(f"mdadm --detail --test {md_dev}")
self.assertRunOk(f"mdadm --action=check {md_dev}")
self.assertRunOk(f"mdadm --monitor --oneshot {md_dev}")
# We mark a device as "failed".
self.assertRunOk(f"mdadm {md_dev} --fail {failing_dev}")
# The monitoring should now report the array as degraded.
monitor_cmd = f"mdadm --monitor --oneshot {md_dev}"
out, ret = self.emulator.run(monitor_cmd)
self.assertEqual(ret, 0)
self.assertIn("DegradedArray", "\n".join(out))
# We remove the failing drive from the array.
self.assertRunOk(f"mdadm {md_dev} --remove {failing_dev}")
# We wipe the failing drive by writing zeroes.
cmd = f"dd if=/dev/zero of={failing_dev} bs=1M count={storage_size}"
self.assertRunOk(cmd)
# We add back this blank drive to the array.
self.assertRunOk(f"mdadm {md_dev} --add {failing_dev}")
# We wait few seconds to let the device rebuild.
time.sleep(3)
# The array should no longer be marked as degraded.
out, ret = self.emulator.run(monitor_cmd)
self.assertEqual(ret, 0)
self.assertNotIn("DegradedArray", "\n".join(out))
# With all those array manipulations, the data file should not
# be corrupted. We should be able to recompute the same hash
# as before.
out, ret = self.emulator.run(hash_cmd)
self.assertEqual(ret, 0)
self.assertEqual(out[0], data_sha256)

3
support/testing/tests/package/test_mdadm/linux-mdadm.fragment Normal file
View File

@ -0,0 +1,3 @@
CONFIG_MD=y
CONFIG_BLK_DEV_DM=y
CONFIG_DM_RAID=y