historical/m0-applesillicon.git/xnu-qemu-arm64-5.1.0/roms/skiboot/doc/release-notes/skiboot-5.9.3.rst
2024-01-16 11:20:27 -06:00

24 lines
846 B
ReStructuredText

.. _skiboot-5.9.3:
=============
skiboot-5.9.3
=============
skiboot 5.9.3 was released on Wednesday November 22nd, 2017. It replaces
:ref:`skiboot-5.9.2` as the current stable release in the 5.9.x series.
Over :ref:`skiboot-5.9.2`, we have one NPU2/NVLink2 fix that causes the
machine to crash hard in the event of hardware error rather than crash
mysteriously later on whenever the NVLink2 links are used.
That fix is:
- npu2: hw-procedures: Add check_credits procedure
As an immediate mitigator for a current hardware glitch, add a procedure
that can be used to validate NTL credit values. This will be called as a
safeguard to check that link training succeeded.
Assert that things are exactly as we expect, because if they aren't, the
system will experience a catastrophic failure shortly after the start of
link traffic.