CIFS: Tasks hang in tranfering files larger than 2MB in mounts with seal

Solution In Progress - Updated -

Issue

  • When transfering files larger than 2MB on a CIFS mount mounted with the seal or sign options, cifsd fails to allocate memory and the copying program hangs.

Environment

  • Red Hat Enterprise Linux 8
    • Seen in kernel-4.18.0-193.el8 series

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