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Date:	Fri, 27 Mar 2009 14:10:59 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Problem with git on Cygiwn 1.7
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On Mar 26 21:19, Andy Moreton wrote:
>     git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git/
> 
> Produces this output:
> 
> Initialized empty Git repository in /usr/local/src/kernel.org/linux-2.6/.git/
> remote: Counting objects: 1080230, done.
> remote: Compressing objects: 100% (175739/175739), done.
> fatal: read error on input: Bad address328.00 KiB | 33 KiB/s
> fatal: index-pack failed
> 
> The relevant portion of the strace output is:
> --------------------------------------------------------------------------------
>   847 506042200 [main] git-index-pack 2084 readv: readv (0, 0x22C844, 1) blocking, sigcatchers 1
> 29196 506071396 [main] git-index-pack 2084 seterrno_from_win_error: /ext/build/netrel/src/cygwin-1.7.0-44/winsup/cygwin/fhandler.cc:1747 windows error 998
>    77 506071473 [main] git-index-pack 2084 geterrno_from_win_error: windows error 998 == errno 14
>   134 506071607 [main] git-index-pack 2084 readv: -1 = readv (0, 0x22C844, 1), errno 14
> --------------------------------------------------------------------------------

This needs help by the git maintainer.  Eric?

As far as I could debug this, what happens is that read() is called
by git with the parameters address = 0x4051d0 and len = 4096.

The len is not the problem, but the address is:

  $ objdump -h /bin/git

  /bin/git:     file format pei-i386

  Sections:
  Idx Name          Size      VMA       LMA       File off  Algn
    0 .text         00052a58  00401000  00401000  00000400  2**4
		    CONTENTS, ALLOC, LOAD, CODE
    1 .data         000145ec  00454000  00454000  00053000  2**5
		    CONTENTS, ALLOC, LOAD, DATA
    2 .rdata        00000330  00469000  00469000  00067600  2**2
		    CONTENTS, ALLOC, LOAD, READONLY, DATA
    3 .bss          0000aa90  0046a000  0046a000  00000000  2**3
		    ALLOC
    4 .idata        00008748  00475000  00475000  00067a00  2**2
		    CONTENTS, ALLOC, LOAD, DATA

So the buffer address for the read, 0x4051d0, is well within the text
segment.  That can't be right.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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