Deadlock between XFS and loop driver due to nfs_file_fsync by the loop
Issue
- Load increased due to the presence of hang command on
D
State. - Operation hang for some XFS filesystems.
- The issue is very similar with https://access.redhat.com/solutions/5038191 but different.
Environment
- Red Hat Enterprise Linux 9 (the same issue might occur on RHEL9)
- Red Hat Enterprise Linux 8
- XFS filesystem built on top of loop block devices
- loop devices backed on files residing on NFS filesystems
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