On Dec 7, 2011, at 21:08 , Connie Sieh wrote:

> On Wed, 7 Dec 2011, Stephan Wiesand wrote:
> 
>> Hi Developers,
>> 
>> openafs should be updated with 6.2. Unfortunately, it's not so easy to decide to what:
>> 
>> 1.6.1 may not be released in time for 6.2
>> 
>> 1.6.0 has a number of known problems (but none that aren't in our current build as well)
>> 
>> 
>> What we're currently testing here is 1.6.0 with two very simple patches:
>> 
>> 1) Disables idledead timeouts on clients. This change is what the developers propose for 1.6.1, see https://lists.openafs.org/pipermail/openafs-devel/2011-November/018583.html .
>> 2) Disables NAT Pings on clients. Those are a new feature with 1.6. The feature is useful, but currently it has a bug making the clients ping much more aggressively than they're supposed to. This becomes a problem when the number of 1.6 clients in a cell grows. See https://lists.openafs.org/pipermail/openafs-info/2011-December/037191.html .
>> 
>> This is what I'd propose for SL 6.2 right now.
>> 
>> In addition, we should - IMHO - add a few fixes for serious issues from the stable-1.6.x git tree. That's what I'll try here next. But Troy used to be rather conservative accepting such changes, and he was probably right.
> 
> Please list what you propose for these issues and their fixes.

These are the ones I think should really go in (excluding many that are relatively simple patches that fix real bugs, and trivial patches like documentation updates and corrected log messages):

2011-09-13 ihandle: Fix IH_REALLYCLOSE for positional I/O
affects: DAFS - possible data loss, seen in the wild
complexity: high
risk: normal
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=f4dd94edf7384dee912a09354f500d08421f94d4
http://gerrit.openafs.org/#change,5404
https://rt.central.org/rt/Ticket/Display.html?id=130215

2011-10-26 viced: Do not swallow errors on StoreData recovery
affects: fileserver - may miss errors storing data
complexity: low
risk: low
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=d1711efd73b8dea177672eeb477a23d4a83b95b7
http://gerrit.openafs.org/#change,5711

2011-10-26 LINUX: Revert group changes on keyring failure
affects: client - may accumulate PAGs over time, causing performance problems
complexity: normal
risk: normal
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=d6c5cde26e35498e7eb7cde02b30ed94d26b37e6
http://gerrit.openafs.org/#change,5712

2011-10-26 volser: Remove ExtractVolId
affects: volserver - may fail to handle large volume ids
complexity: low
risk: low
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=080e4a736ba95d4dcb4167a1a8f8accab8a928b0
http://gerrit.openafs.org/#change,5720

2011-11-02 libafs: Set tvcp->callback before BulkStatus
affects: client - may incorrectly assume it holds callbacks for certain files
complexity: normal
risk: normal
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=f6168a849cbb5bde34cec11e02df54481fc5d3ca
http://gerrit.openafs.org/#change,2548

2011-11-02 vol: Handle large volume IDs in VLockFile
affects: vol commands and server - may fail on large volume ids
complexity: moderate
risk: moderate
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=5823fda443115d3aae966d09141f5de4199f5741
http://gerrit.openafs.org/#change,5758

2011-11-02 afs: Avoid memory leak on recursive write flock
affects: client - memory leak when locking a file already locked
complexity: low
risk: normal
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=741bea05a3a5d170d47ca9df590f84ab02a7baad
http://gerrit.openafs.org/#change,5765

2011-11-02 afs: Retry unlock after afs_StoreAllSegments
affects: client - may panic when unlocking files
complexity: moderate
risk: normal
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=c096127f73348a470e0e478b31c3fe132304b009
http://gerrit.openafs.org/#change,5766
https://rt.central.org/rt/Ticket/Display.html?id=125446

2011-11-09 rx: Don't clear the receive queue when out of packets
affects: any - client-server connections may hang
complexity: low
risk: normal
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=4ff4ec8ac94a75385d919f9031abaec31aca9b26
http://gerrit.openafs.org/#change,5820

2011-11-20 viced: avoid bogus handle in rename
affects: fileserver - may crash
complexity: low
risk: normal
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=f718feb826926a67f428b482a580d03c788dfabf
http://gerrit.openafs.org/#change,6081
https://rt.central.org/rt/Ticket/Display.html?id=130215

2011-11-20 klog.krb5: enforce DES for rxkad
affects: klog.krb5 - fails with recent heimdal servers
complexity: high
risk: very low
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=8150bbbf0dbc6732860214180735ba509902f417
http://gerrit.openafs.org/#change,6087
https://rt.central.org/rt/Ticket/Display.html?id=130278

2011-11-22 Linux: make sure backing_dev_info is zeroed
affects: client - may oops the kernel
complexity: very low
risk: very low
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=032736bc052d3fb1a1d4f033a47e844d7f4ea05a
http://gerrit.openafs.org/#change,6104

2011-11-28 dafs: avoid null deref getting volume header
affects: DAFS - may segfault
complexity: low
risk: normal
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=9865698ee0d81d371b8846a1145a46f691de8388
http://gerrit.openafs.org/#change,6122

2011-11-28 Unix CM: Fix PutVolume in afs_BlackListOnce
affects: client - uses volume data after dropping the reference to it
complexity: very low
risk: low
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=a8160e462821d718df0bd00f1642dbc1bc9bc7a8
http://gerrit.openafs.org/#change,6124

2011-12-01 viced: disable accelerated copyonwrite
affects: fileserver - possible data loss, seen in the wild
complexity: normal
risk: normal
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=c73b66447cb84cf1f07775b9f93b745050e4972c
http://gerrit.openafs.org/#change,6160
https://rt.central.org/rt/Ticket/Display.html?id=130295

2011-12-01 remove CopyOnWrite2 and unused vars
affects: fileserver - removes a static function now unused due to 6160
complexity: trivial
risk: none
http://git.openafs.org/?p=openafs.git;a=commitdiff;h=4e05bc3b5cd50354bcade3c38c0ec97713b148c8
http://gerrit.openafs.org/#change,6161



-- 
Stephan Wiesand
DESY - DV -
Platanenallee 6
15738 Zeuthen, Germany