10.0, csh history merge broken?

[Marat N.Afanasyev]

John Baldwin wrote:
> On Wednesday, January 29, 2014 3:06:24 am Yamagi Burmeister wrote:
>> On Tue, 28 Jan 2014 11:47:15 -0500
>> John Baldwin <jhb at freebsd.org> wrote:
>>
>>> On Monday, January 27, 2014 3:55:53 am Alexander Yerenkow wrote:
>>>>   >Maybe it would be a good idea to cherry pick those two revisions and
>>>>   >merge then into FreeBSD, until a new tcsh version is released.
>>>>
>>>> I think this is must, since currently any regular shutdown can break
> login
>>>> ability (if server is high loaded + history file is broken and big
> enough).
>>>> I have now locked history file with chflags until fix will come.
>>>
>>> These changes are already present in HEAD (FreeBSD 11) and will probably
>>> be merged by the next 10 release.
>>
>> Really? As far as I can see the last commit to head/contrib/tcsh was
>> the update to 6.18.01 one 22/02/2012 by mp at . While 6.18.01 featured a
>> new, much faster history merge logic which minimized the race window,
>> the root cause wasn't solve. Only the two upstream commits (from
>> 08/12/2013 and 11/12/2013) linked above brought real locking to the
>> merge process, serializing it between several tcsh instances.
>
> Bah, somehow I had thought I had seen the 'lock' keyword in tcsh on my
> HEAD box, but I don't see it there now.
>
So, can we hope to have these patches appear in HEAD and MFC to, at 
least, -stable soon? ;)

-- 
SY, Marat

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