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List: git
Subject: Re: git fsck segmentation fault
From: Simon Hausmann <simon () lst ! de>
Date: 2008-11-28 8:19:09
Message-ID: 200811280919.10685.simon () lst ! de
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On Thursday 27 November 2008 Nicolas Pitre, wrote:
> On Thu, 27 Nov 2008, Simon Hausmann wrote:
> > On Thursday 27 November 2008 20:10:20 Simon Hausmann wrote:
> > > On Thursday 27 November 2008 18:47:41 Nicolas Pitre wrote:
> > > > On Thu, 27 Nov 2008, Simon Hausmann wrote:
> > > > > Hi,
> > > > >
> > > > > when running git fsck --full -v (version 1.6.0.4.26.g7c30c) on a
> > > > > medium sized
> > > >
> > > > That version doesn't exist in the git repo.
> > >
> > > Ah, oops, it was a merge commit, corresponding to maint as of 5aa3bd.
> > >
> > > > > (930M) repository I get a segfault.
> > > > >
> > > > > The backtrace indicates an infinite recursion. Here's the output
> > > > > from the last few lines:
> > > >
> > > > [...]
> > > >
> > > > Could you try with latest master branch please? It is more robust
> > > > against some kind of pack corruptions that could send the code into
> > > > infinite loops.
> > >
> > > Same problem with git version 1.6.0.4.790.gaa14a
> >
> > Forgot to paste the changed line numbers of the recursion:
>
> [...]
>
> Well... Your initial backtrace showed recursion in unpack_entry() which
> was rather odd in the first place. Your latest backtrace shows a loop
> in make_object() which has nothing to do what so ever with
> unpack_entry(). So the backtrace might not be really useful.
>
> I suspect you'll have to bisect git to find the issue, given that some
> old version can be found to be good. For example, does it work with
> v1.5.2.5?
Ah yes, v1.5.2.5 works! (phew, and it verified that the repo is fine)
Ok, I bisected and "git bisect run" identified the following commit as first bad
commit:
commit 271b8d25b25e49b367087440e093e755e5f35aa9
Author: Martin Koegler <mkoegler@auto.tuwien.ac.at>
Date: Mon Feb 25 22:46:05 2008 +0100
builtin-fsck: move away from object-refs to fsck_walk
Simon
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