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author | Stewart Smith <stewart@linux.ibm.com> | 2018-05-28 17:55:06 +1000 |
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committer | Stewart Smith <stewart@linux.ibm.com> | 2018-05-28 17:56:57 +1000 |
commit | d14909ecbd0dd1bf0aacd6b956d24a9ac6f11d55 (patch) | |
tree | bb45129895d033410d3466d197cbeb925c20ce30 /doc | |
parent | dc4e55316981c9fbfdfa2e9ac750d3fd95cb4276 (diff) | |
download | blackbird-skiboot-d14909ecbd0dd1bf0aacd6b956d24a9ac6f11d55.tar.gz blackbird-skiboot-d14909ecbd0dd1bf0aacd6b956d24a9ac6f11d55.zip |
skiboot 5.10.6 release notes
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
(cherry picked from commit 48e5e8be4612b4233b2e443c86fffa1997ab0799)
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
Diffstat (limited to 'doc')
-rw-r--r-- | doc/release-notes/skiboot-5.10.6.rst | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/doc/release-notes/skiboot-5.10.6.rst b/doc/release-notes/skiboot-5.10.6.rst new file mode 100644 index 00000000..be9ea4de --- /dev/null +++ b/doc/release-notes/skiboot-5.10.6.rst @@ -0,0 +1,48 @@ +.. _skiboot-5.10.6: + +============== +skiboot-5.10.6 +============== + +skiboot 5.10.6 was released on Monday May 28th, 2018. It replaces +:ref:`skiboot-5.10.5` as the current stable release in the 5.10.x series. + +It is recommended that 5.10.6 be used instead of any previous 5.10.x version, +especially due to the locking bug fixes. + +It is expected that this will be the final 5.10.x version, with 6.0.x taking +over as the main stable branch. + +Over :ref:`skiboot-5.10.5`, we have the following fixes: + +- opal-prd: Do not error out on first failure for soft/hard offline. + + The memory errors (CEs and UEs) that are detected as part of background + memory scrubbing are reported by PRD asynchronously to opal-prd along with + affected memory ranges. hservice_memory_error() converts these ranges into + page granularity before hooking up them to soft/hard offline-ing + infrastructure. + + But the current implementation of hservice_memory_error() does not hookup + all the pages to soft/hard offline-ing if any of the page offline action + fails. e.g hard offline can fail for: + + - Pages that are not part of buddy managed pool. + - Pages that are reserved by kernel using memblock_reserved() + - Pages that are in use by kernel. + + But for the pages that are in use by user space application, the hard + offline marks the page as hwpoison, sends SIGBUS signal to kill the + affected application as recovery action and returns success. + + Hence, It is possible that some of the pages in that memory range are in + use by application or free. By stopping on first error we loose the + opportunity to hwpoison the subsequent pages which may be free or in use by + application. This patch fixes this issue. +- xive: fix missing unlock in error path + + Found with sparse and some added lock annotations. +- OPAL_PCI_SET_POWER_STATE: fix locking in error paths + + Otherwise we could exit OPAL holding locks, potentially leading + to all sorts of problems later on. |