日志报错 报错信息 [166973.065674] XFS: runc:[1:CHILD](13230) possible memory allocation deadlock in kmem_zone_alloc (mode:0x8250) [166974.848634] XFS: runc:[1:CHILD](13230) possible memory allocation deadlock in kmem_zone_alloc (mode:0x8250) [166976.857584] XFS: runc:[1:CHILD](13230) possible memory allocation deadlock in kmem_zone_alloc (mode:0x8250) [166978.697604] XFS: runc:[1:CHILD](13230) possible memory allocation deadlock in kmem_zone_alloc (mode:0x8250) [166980.524526] XFS: runc:[1:CHILD](13230) possible memory allocation deadlock in kmem_zone_alloc (mode:0x8250) [166982.529419] XFS: runc:[1:CHILD](13230) possible memory allocation deadlock in kmem_zone_alloc (mode:0x8250) [166984.534372] XFS: runc:[1:CHILD](13230) possible memory allocation deadlock in kmem_zone_alloc (mode:0x8250) 排查问题 排查 https://access.redhat.com/solutions/532663 决议 This is a long standing issue with xfs and highly fragmented files. Our engineering team is working on a long term resolution for this issue. Workarounds There are several solutions that can be used to avoid high file fragmentation: Preallocate the space to be used by the file with unwritten extents. This gives……

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