level=info msg="Not using native diff for overlay, this may cause degraded

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level=info msg="Not using native diff for overlay, this may cause degraded performance for building images: kernel has CONFIG_OVERLAY_FS_REDIRECT_DIR enabled"
决议
( T% c4 b* x4 W1 P; bOn the bugzilla, the engineering team confirmed that it is safe to ignore this warning and it will not cause any issue for builds.
根源
+ O4 A' \3 R; v" f4 P* LIt appears that the CONFIG_OVERLAY_FS_REDIRECT_DIR kernel setting is enabled in RHCOS.
Bugzilla was created to investigate the root cause of this issue.
In the error message, more concern is about the below message.
Raw
5 q  \# o! k7 b, Otime="XXXX" level=info msg="Not using native diff for overlay, this may cause degraded performance for building images: kernel has CONFIG_OVERLAY_FS_REDIRECT_DIR enabled"