            OpenAFS Release Notes - Version 1.6.0pre3
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All systems: Minor bugfixes.
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ADDITIONAL CHANGES IN 1.6.0PRE3

All platforms:

- Revert UUID support in vos.

- pt_util fixed to properly create new databases.

- Rx busy call channel error handling improved.

- MTU discovery now properly shut down on call reset.

- FUSE client support fixed for non-/afs mounts.

All server platforms:

- A deleted volume can now be recreated properly.

- Callbacks are again not broken during whole partition salvages.

- Positional vectored IO fixed for largefile (>2GB) capable systems.

- Fileserver per-client thread usage again properly enforced.

- Anonymous dropbox support improved and drawbacks documented.

Demand Attach Fileserver platforms:

- Ensure vnodes are not reallocated while in use due to volume
  bitmap errors.

Linux:

- Perform vcache eviction via a fast path before visiting vcaches
  where sleep is needed.

MacOS:

- aklog AuthorizationPlugin now provided.

Solaris:

- Corrected Solaris 11 startup script.

- vcache mappings freed on shutdown to avoid panic.

Windows:

- icon tray state now conditionally set (128591)

PREVIOUS CHANGES IN 1.6.0PRE2

All platforms:

- Documentation updates.

- Don't stop Rx keepalives after an ackall is received, avoiding
  spurious connection timeouts. (128848)

- Don't retry Rx calls on channels returning busy errors. (128671)

- vos will not die with a double free error at command completion.

- Properly enable Rx connection hard timeouts.

- Initialize rx_multi lock before use.

- Avoid spurious crashes when initializing in "backup" client.

All unix platforms:

- Check for /afs existance before starting, unless -nomount is specified.

- Avoid a potential panic when using /afs/.:mount syntax.

- Avoid a panic in memcache mode due to missing CellItems file.

All server platforms:

- Attempt to recovery more quickly from timed out volume release
  transactions.

- Auditing now properly byte order swaps IP addresses when printing.

- vos split now has improved error handling.

- Many changes to again support Windows fileservers.

- During volume removal, data removal speed improved.

- Improve CPU utilization during volume attaching by DAFS.

- In salvager check-only mode, avoid potentially fixing a vnode.

- Fix support for large (greater than 2gb) volume special files.

- Salvager will not crash if multiple or bad volume link tables
  are encountered.

- Avoid erroneous full dump by remembering which sites were out of date
  at the start of the release.

FreeBSD:

- Remove support for "Giant" lock as we no longer need to use it.

- Don't sleep with AFS GLOCK.

- Properly enable 64 bit long long support.

- Restore support for FreeBSD 7 (128612)

- Fix locking issues at shutdown.

Linux:

- support through kernel 2.6.38.

- RedHat packaging now properly supports RHEL6.

- Use rx_Readv in cache bypass to improve performance.

- Properly handle 0-length replies during cache bypass operations.

- Properly handle non-contiguous readpage cache bypass operations.

- Do proper locking when transitioning to or from cache bypass.

- Avoid extra runs of vcache freeing routine. (128756)

MacOS:

- Check for unloaded kernel extensions when decoding AFS panics.

- Properly handle setpag errors. PAGs are not supported.

- Disable "get tokens at login" in prefs pane if AD authentication
  plugin is configured.

OpenBSD:

- support through OpenBSD 4.8.

Solaris:

- Fix support for Solaris pre-10.

Windows:

- afs_config will not longer set the Tray Icon State
  in the registry if the checkbox is not present in
  the dialog. (128591)

- AFS Explorer Shell Extension now works from folder
  backgrounds.  Overlays for mount points and symlinks
  are present in the dll, but are not registered at present
  by the installers.

- Do not use RankServerInterval registry value as the value for
  PerformanceTuningInterval.

- When the data version of a mountpoint or symlink changes,
  the target string in the cm_scache_t object must be cleared.

- "fs checkservers" now includes vldb servers in the output
  and only lists multi-homed servers once.  A multi-homed
  server that has at least one up interface is no longer
  considered to be down.

- When asynchronously storing dirty data buffers to the
  file server ensure that (a) the cm_scache_t object and
  the cm_buf_t object are for the same File ID so that
  locking and signalling work properly; and (b) if the
  FID no longer exists on the file server, do not panic,
  just discard the buffer.

- When processing VNOVOL, VMOVED and VOFFLINE errors perform
  server comparisons by UUID or address and not simply by
  cm_server_t pointer.  Otherwise, server failover may not
  succeed.

- Do not preserve status information for cm_scache_t objects
  when the issuing server is multi-homed.

- Giving up all callbacks when shutting down or suspending
  the machine is now significantly faster due to the use
  of an rx_multi implementation.  (This functionality is
  still off by default and must be activated by a registry
  value.)

- Race conditions were possible when updating the state
  of the cm_volume_t flags and when moving the volumes
  within the least recently used list.

- Ensure that the lanahelper library does not perform a
  NCBRESET of each lan adapter when enumerating the
  current network bindings.  Correcting this permits OpenAFS
  to work on Windows 7 when the network adapter settings
  change.

- Fix creation of mount points and symlinks as \\AFS\xxxx

PREVIOUS CHANGES:

All platforms:

- vos now properly deals with matching sites when servers are multihomed.

All Unix platforms:

- Servers now marked down when GetCapabilities returns error.

- In-use vcache count is now properly tracked.

All server platforms:

- Fix ptserver supergroups support on 64 bit platforms.

- Demand attach salvaging doesn't use freed volume pointers.

- Properly hold host lock during host enumeration in fileserver.

FreeBSD:

- Fix socket termination on shutdown.

- Support for 7.2, 7.3, 7.4 and 8.2 included.

- References to vcaches are no longer leaked during root or reclaim.

Linux:

- Define llseek handler to avoid ESPIPE error in 2.6.37.

- Mount interface replaces get_sb (new for 2.6.37, not yet required).

- RedHat init script allows deferring for a new binary restart.

- DEFINE_MUTEX replaces DECLARE_MUTEX for 2.6.37.

MacOS:

- Correct return value from setpag syscall.

OpenBSD:

- Bug fixes for issues introduced previously in 1.5 series.

Solaris:

- Switch to ioctl() syscall replacement for Solaris 11 since syscall 65
  is not safe.
