9a5620ca6473969359f262802c76daf35cbcbb5d is the first bad commit
commit 9a5620ca6473969359f262802c76daf35cbcbb5d
Author: Bjoern Michaelsen <bjoern.michaelsen@canonical.com>
Date:   Tue Dec 11 01:59:31 2012 +0000

    source-hash-ae4e4a11d4300f7448cb6bd170fcb034542caddc
    
    commit ae4e4a11d4300f7448cb6bd170fcb034542caddc
    Author:     Rene Engelhard <rene@debian.org>
    AuthorDate: Tue Nov 6 21:24:32 2012 +0100
    Commit:     Rene Engelhard <rene@debian.org>
    CommitDate: Tue Nov 6 21:24:32 2012 +0100
    
        typo...
    
        Change-Id: I2c7968194afbcf74967cd16c639dce7de858a513

:100644 100644 c09b92a8ddf24b8738a7cd3a695ae1e4482d354c 6b13afd13f023cedac65a896318de4aa55dead27 M	autogen.log
:100644 100644 bcee1e11bd693642ca5a6330175b58082e5dcdd0 54d2377f5b3afd6ed668b3e24cb877c289119ec5 M	ccache.log
:100644 100644 75677cef16786d2cc95c0d8f301482278ca055c3 d18a6ebcd3b8537c3dd3dbc16e862fb6370ecb8a M	commitmsg
:100644 100644 83b4ecc0ecb3e031c804d49f45f854e95d5cc961 d482c00e5fff6081c6b87b637fd9ffaf3e1e2c6c M	dev-install.log
:100644 100644 91437b9974ffada7e049273419bb8c66c91c0539 abf45ab9609c77a5ab952aa310eafe8c2ffaf85c M	make.log
:040000 040000 45c0bab8b669778ab523c8f65a25e8c9afde604a f4bfa15b2f72d3df5675b07bcf32254a819b9d19 M	opt

git bisect start
# good: [65fd30f5cb4cdd37995a33420ed8273c0a29bf00] source-hash-d6cde02dbce8c28c6af836e2dc1120f8a6ef9932
git bisect good 65fd30f5cb4cdd37995a33420ed8273c0a29bf00
# bad: [5b4b36d87517a6ea96ff8c84c46b12f462fc9a1a] source-hash-8450a99c744e9005f19173e4df35d65640bcf5c4
git bisect bad 5b4b36d87517a6ea96ff8c84c46b12f462fc9a1a
# good: [16b0b88cbd4ef0f51816e97277e40c5cf78f7bf9] source-hash-099198a4224778fe6e43f5dc13b5b9b1b4dc828c
git bisect good 16b0b88cbd4ef0f51816e97277e40c5cf78f7bf9
# good: [f28b8f9a6c47fa59bf98fffe937a2f2db7a2445a] source-hash-a581d31b227623e09d2970a91214fda398f98eda
git bisect good f28b8f9a6c47fa59bf98fffe937a2f2db7a2445a
# good: [114fd3b76bcba890e6d702d00cef910f1493c262] source-hash-64ab96cd15e52da88781e720d6f031dbcd0ba902
git bisect good 114fd3b76bcba890e6d702d00cef910f1493c262
# bad: [47498a36f7af8f54e6e3dda89cd4708802a409e6] source-hash-19f4ebd8a54da0ae03b9cc8481613e5cd20ee1e7
git bisect bad 47498a36f7af8f54e6e3dda89cd4708802a409e6
# good: [f4e2d84db194943180f3e7ed4adce5f8e377d9bc] source-hash-806d18ae7b8c241fe90e49d3d370306769c50a10
git bisect good f4e2d84db194943180f3e7ed4adce5f8e377d9bc
# bad: [fb4214f9d134b556582a4a5280e5458de5f8eebd] source-hash-683758efb22d08a4cf211a6d985148f513da2a90
git bisect bad fb4214f9d134b556582a4a5280e5458de5f8eebd
# good: [e2e46267c18c2706de771a08472ebfce19f68520] source-hash-4316e643ef345b0f673b4a03a80a4b7cb3185588
git bisect good e2e46267c18c2706de771a08472ebfce19f68520
# bad: [9a5620ca6473969359f262802c76daf35cbcbb5d] source-hash-ae4e4a11d4300f7448cb6bd170fcb034542caddc
git bisect bad 9a5620ca6473969359f262802c76daf35cbcbb5d