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Diffstat (limited to 'roms/skiboot/doc/release-notes/skiboot-5.9.7.rst')
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diff --git a/roms/skiboot/doc/release-notes/skiboot-5.9.7.rst b/roms/skiboot/doc/release-notes/skiboot-5.9.7.rst new file mode 100644 index 000000000..398ad2d9f --- /dev/null +++ b/roms/skiboot/doc/release-notes/skiboot-5.9.7.rst @@ -0,0 +1,28 @@ +.. _skiboot-5.9.7: + +============= +skiboot-5.9.7 +============= + +skiboot 5.9.7 was released on Friday December 22nd, 2017. It replaces +:ref:`skiboot-5.9.6` as the current stable release in the 5.9.x series. + +Over :ref:`skiboot-5.9.6`, we have two bug fixes, they are: + +- phb4: Change PCI MMIO timers + + Currently we have a mismatch between the NCU and PCI timers for MMIO + accesses. The PCI timers must be lower than the NCU timers otherwise + it may cause checkstops. + + This changes PCI timeouts controlled by skiboot to 33-50ms. It should + be forwards and backwards compatible with expected hostboot changes to + the NCU timer. +- p8-i2c: Limit number of retry attempts + + Currently we will attempt to start an I2C transaction until it succeeds. + In the event that the OCC does not release the lock on an I2C bus this + results in an async token being held forever and the kernel thread that + started the transaction will block forever while waiting for an async + completion message. Fix this by limiting the number of attempts to + start the transaction. |