From c0457a046d14c6df8253c9ab33f948da6d1893f7 Mon Sep 17 00:00:00 2001 From: Stephan Wiesand Date: Tue, 7 May 2013 20:46:47 +0200 Subject: [PATCH] Preliminary release notes for 1.6.3 Change-Id: Ie4a6a984cfd9b819b0a3170acce7817998307157 Reviewed-on: http://gerrit.openafs.org/9859 Reviewed-by: Ken Dreyer Tested-by: BuildBot Reviewed-by: Stephan Wiesand --- NEWS | 85 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) diff --git a/NEWS b/NEWS index bd053e416f..f3d94c74cc 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,90 @@ User-Visible OpenAFS Changes +OpenAFS 1.6.3 (in progress) + +All platforms + + * Obey the jumbo/nojumbo settings for ubik servers (the DB servers) + too. In previous releases, those servers may have used jumbograms + even if they were not configured to do so. This change corrects + the actual behaviour, and will improve performance and reliability + for sites where jumbograms are problematic. It could cause a decrease + in performance for sites where jumbograms work, but those can turn + them back on manually. + + * Dozens of fixes for common coding problems like use after free, + use of possibly uninitialised memory, reading or writing past the + end of arrays and potential NULL pointer derefences. Spotted by + code analysis tools or human inspection. + + * Documentation improvements. + + * Fixes and improvements to the diagnostic or log messages printed by + vos, the fileserver and others. + + * Build fixes, making parallel builds more reliable with certain + configuration options and helping various platforms including + recent releases of IRIX, Solaris and several flavours of Linux. + + * Avoid sending a small amount of data over the wire unencrypted + under certain conditions, and emit the correct error message in + this case. + +All server platforms + + * Avoid generating duplicate IDs for readonly and backup volumes, + which could happen under certain conditions. + + * Allow the fileserver to return volume data like quota or free space, + which is available publicly elsewhere, without the additional access + check for read permissions on a volume's root directory the fileserver + performed before. + + * The fileserver now emits a log message when it ran out of memory for + for callbacks. + + * Avoid several potential fileserver problems, including memory + corruption and segmentation faults, due to client bookkeeping. + + * Avoid known cases of silent data corruption due to background syncs + on the fileserver, especially during Copy on Write. + + * Make the fileserver sync behaviour runtime configurable. Up to 1.4.5, + we had synchronous syncs which were safe but really slow. Since 1.4.5, + we've had asynchronous syncs which are much faster but believed to + be the cause of rare data corruption issues, and while all known cases + of these happening are believed to be fixed in the 1.6.3 release, doubts + remain. This change allows choosing between those, and in addition allows + to turn syncs by the fileserver off altogether, thus relying on the vice + partition's backend filesystem and the operating system, or to just + execute them when a volume is detached. The default behaviour is + unchanged from releases since 1.4.5, but it's highly recommended to + consider the additional options this change provides. Future OpenAFS + releases will default to "-sync=none". + + * For dbservers, avoid a situation where misinterpreting transient + network errors causes long-term issues with achieving ubik quorum. + +All UNIX client platforms + + * Improvements to the detection of an aklog-specific krb5 configuration + file, for the purposes of turning on "weak crypto" for aklog. + + * Fixed a regression introduced in release 1.6.2 which caused the + supposedly persistent disk cache to be discarded upon client start. + (RT #131655) + +Linux + + * Support Linux kernels up to 3.9 + + * Fixed two bugs making it impossible to unmount a disk cache filesystem + after it has been used by the client. (RT #131613) + +OpenBSD + + * Improved support for OpenBSD 4.9 to 5.3 + OpenAFS 1.6.2.1 Linux clients