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author | Stewart Smith <stewart@linux.vnet.ibm.com> | 2016-04-29 13:29:47 +1000 |
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committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2016-04-29 13:29:47 +1000 |
commit | 057eca8c732c82ffdd2caaf524a35ac0c66a6fbb (patch) | |
tree | 20afd374bacb45bb0c3d7e637309d8939ac2a6c5 /doc | |
parent | 7d6fc9ee0610ba38f2cab0b60aa5e2f7143a0834 (diff) | |
parent | d8f080c635364a36fd0dcb251c3237284630cadf (diff) | |
download | skiboot-057eca8c732c82ffdd2caaf524a35ac0c66a6fbb.zip skiboot-057eca8c732c82ffdd2caaf524a35ac0c66a6fbb.tar.gz skiboot-057eca8c732c82ffdd2caaf524a35ac0c66a6fbb.tar.bz2 |
Merge branch 'skiboot-5.1.x' into skiboot-5.2.x - 5.1.16 release notes
Diffstat (limited to 'doc')
-rw-r--r-- | doc/release-notes/skiboot-5.1.16.txt | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/doc/release-notes/skiboot-5.1.16.txt b/doc/release-notes/skiboot-5.1.16.txt new file mode 100644 index 0000000..b33a42e --- /dev/null +++ b/doc/release-notes/skiboot-5.1.16.txt @@ -0,0 +1,52 @@ +skiboot-5.1.16 +-------------- + +skiboot-5.1.16 was released on Friday April 29th, 2016. + +skiboot-5.1.16 is the 17th stable release of 5.1, it follows skiboot-5.1.15 +(which was released March 16th, 2016). + +This release contains a few bug fixes and is a recommended upgrade. + +Changes are: + +PHB3 (all POWER8 platforms): +- hw/phb3: Ensure PQ bits are cleared in the IVC when masking IRQ + When we mask an interrupt, we may race with another interrupt coming + in from the hardware. If this occurs, the P and/or Q bit may end up + being set but we never EOI/clear them. This could result in a lost + interrupt or the next interrupt that comes in after re-enabling never + being presented. + + This fixes a bug seen with some CAPI workloads which have lots of + interrupt masking at the same time as high interrupt load. The fix is + not specific to CAPI though. +- hw/phb3: Fix potential race in EOI + When we EOI we need to clear the present (P) bit in the Interrupt + Vector Cache (IVC). We must clear P ensuring that any additional + interrupts that come in aren't lost while also maintaining coherency + with the Interrupt Vector Table (IVT). + + To do this, the hardware provides a conditional update bit in the + IVC. This bit ensures that generation counts between the IVT and the + IVC updates are synchronised. + + Unfortunately we never set this the bit to conditionally update the P + bit in the IVC based on the generation count. Also, we didn't set + what we wanted the new generation count to be if the update was + successful. + +FSP platforms: +- OPAL:Handle mbox response with bad status:0x24 during FSP termination + OPAL committed a predictive log with SRC BB822411 in some situations. + +Generic: +- hmi: Fix a bug where partial hmi event was reported to host. + This bug fix ensures the CPU PIR is reported correctly: + [ 305.628283] Fatal Hypervisor Maintenance interrupt [Not recovered] + [ 305.628341] Error detail: Malfunction Alert + [ 305.628388] HMER: 8040000000000000 + - [ 305.628423] CPU PIR: 00000000 + + [ 200.123021] CPU PIR: 000008e8 + [ 305.628458] [Unit: VSU] Logic core check stop + |