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OpenShift: setting up XFS volumes fails during xfs_io #1058

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pohly opened this issue Jan 2, 2022 · 4 comments · Fixed by #1059
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OpenShift: setting up XFS volumes fails during xfs_io #1058

pohly opened this issue Jan 2, 2022 · 4 comments · Fixed by #1059
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OpenShift issues occuring on Red Hat OpenShift

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pohly commented Jan 2, 2022 •
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@kirin1994 ran into an issue when testing on OpenShift: volumes with XFS get created, but then the xfs_io command which sets the 2m extsize for huge pages hangs.

Invoking that binary in the PMEM-CSI DaemonSet container via kubectl exec without any parameters also hangs. Invoking it under strace shows that it gets stuck very early, probably even before it reaches main(). This looks like an issue with the kernel or container runtime.
@pohly pohly added the OpenShift issues occuring on Red Hat OpenShift label Jan 2, 2022
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pohly commented Jan 2, 2022

There is a potential workaround: the work done my xfs_io -c "extsize 2m" <mount point> can also be done directly by the PMEM-CSI driver through the same ioctl calls that xfs_io uses. Using those from Go is possible through cgo.

@pohly pohly self-assigned this Jan 2, 2022
pohly added a commit to pohly/pmem-CSI that referenced this issue Jan 2, 2022
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XFS: fix creating volumes on OpenShift
975ef5a 
On OpenShift, the xfs_io command that was used while creating XFS volumes hangs
while getting loaded (kernel or container runtime bug?). This problem can be
avoided by making the same ioctl calls as in that binary directly from
the PMEM-CSI driver.

Fixes: intel#1058
@pohly pohly mentioned this issue Jan 2, 2022
Merged
pohly added a commit to pohly/pmem-CSI that referenced this issue Jan 3, 2022
@pohly
XFS: fix creating volumes on OpenShift
4f1a2d8 
On OpenShift, the xfs_io command that was used while creating XFS volumes hangs
while getting loaded (kernel or container runtime bug?). This problem can be
avoided by making the same ioctl calls as in that binary directly from
the PMEM-CSI driver.

Fixes: intel#1058
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pohly commented Jan 4, 2022

Corresponding upstream issue: https://bugzilla.redhat.com/show_bug.cgi?id=2034194

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pohly commented Jan 10, 2022

Reopening - we probably need to backport and do a v1.0.2.

@pohly pohly reopened this Jan 10, 2022
pohly added a commit to pohly/pmem-CSI that referenced this issue Jan 12, 2022
@pohly
XFS: fix creating volumes on OpenShift
fb0e4f6 
On OpenShift, the xfs_io command that was used while creating XFS volumes hangs
while getting loaded (kernel or container runtime bug?). This problem can be
avoided by making the same ioctl calls as in that binary directly from
the PMEM-CSI driver.

Fixes: intel#1058
(cherry picked from commit 4f1a2d8)
@pohly pohly mentioned this issue Jan 12, 2022
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pohly commented Feb 11, 2022

This is contained in 1.0.2.

@pohly pohly closed this as completed Feb 11, 2022
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XFS: fix creating volumes on OpenShift pohly/pmem-CSI
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