| .. _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. |