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| author | Arne Wiebalck <Arne.Wiebalck@cern.ch> | 2021-10-04 16:57:56 +0200 |
|---|---|---|
| committer | Arne Wiebalck <Arne.Wiebalck@cern.ch> | 2021-10-05 11:42:49 +0200 |
| commit | 9d707e9f4bab40109b7e29df2136e86d65325ea3 (patch) | |
| tree | 4318b14031e100705d9ceebebe6ddacb2be69778 /ironic_python_agent | |
| parent | 8d901ff0dca45fb94a3ae079fee66626747285c0 (diff) | |
| download | ironic-python-agent-9d707e9f4bab40109b7e29df2136e86d65325ea3.tar.gz | |
Software RAID: Call udev_settle before creation
This patch fixes a race during software RAID creation:
we create the partition with parted, the kernel then
notifies udev, but we need to wait for udevd to create
the device files before calling mdadm to create the
md device.
Credits to jcosmao for finding this.
Change-Id: I642f28acc351cf50263e37dfbc8468bf59de2cc5
Diffstat (limited to 'ironic_python_agent')
| -rw-r--r-- | ironic_python_agent/hardware.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/ironic_python_agent/hardware.py b/ironic_python_agent/hardware.py index fb743744..3f3e4e0c 100644 --- a/ironic_python_agent/hardware.py +++ b/ironic_python_agent/hardware.py @@ -2152,6 +2152,13 @@ class GenericHardwareManager(HardwareManager): utils.execute('parted', device, '-s', '-a', 'optimal', '--', 'mkpart', 'primary', start_str, end_str) + + # Parted/udev partition creation is asynchronous. + # Wait for udev events to be processed before going to + # next step. This avoids getting errors at mdadm + # create because a device is not ready yet. + _udev_settle() + # Necessary, if we want to avoid hitting # an error when creating the mdadm array below # 'mdadm: cannot open /dev/nvme1n1p1: No such file |