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Date: Wed, 07 Apr 2010 22:43:08 -0400
From: Mark Levedahl <mlevedahl AT gmail DOT com>
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Subject: Re: git on cygwin 1.7.2/1.7.4
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On 03/31/2010 09:36 PM, Mark Levedahl wrote:
> On 03/31/2010 12:25 AM, Christopher Faylor wrote:
>> On Tue, Mar 30, 2010 at 08:08:37PM -0400, Mark Levedahl wrote:
>>> All of the above connections and i/o processing are done using
>>> bog-standard fork, pipe, open, read, write, and associated file
>>> commands. Git has no trouble opening all of the processes and pipes
>>> under Cygwin 1.7.2. However, in general before the data transfer is
>>> complete the demux process issues an error upon getting an incomplete
>>> packet (fewer bytes transmitted than declared in the header), and
>>> debugging shows the error code of the read() is ENOENT, indicating the
>>> pipe or socket has been terminated early. The index-pack process also
>>> issues an error due to receipt of an incomplete pack.
Given the above, it seems logical the problem is with pipes, and as 
1.7.4-1 is has fixes for pipes I tried it out and found a significant 
improvement: using 1.7.2-1 I got 16 failures out of 20 attempts to clone 
a 17 MByte repo on localhost, using 1.7.4-1 this is down to 3 failures 
out of 20 attempts. (1.7.3-1 was not an improvement).

The failures I do get are identical to what I described before: the 
demux thread is getting a 0 (= EOF) return from read(stdin, ...), while 
the server process is still trying to upload data via ssh.

So, 1.7.4-1 is better, but still has at least one issue remaining.

Mark

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