SUSE Linux Enterprise Server (SLES) 15 SP4 Inbox Driver Documentation

Known Inbox-Related Issues

The following table describes known issues in this release and possible workarounds.

Internal Ref.

Description

1751408

Description: Bandwidth degradations due to Intel's Page Table Isolation (PTI) CPU security fix.

Workaround:

  • Disable the PTI at run time by writing 0 to /sys/kernel/debug/x86/pti_enabled.

  • Add "nopti" or "pti=off" to grub.conf

Keywords: Performance

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