From: Ben Tebulin <tebulin@googlemail•com>
To: Junio C Hamano <gitster@pobox•com>
Cc: Ben Tebulin <tebulin@googlemail•com>,
Thomas Rast <trast@inf•ethz.ch>,
git@vger•kernel.org, Matthieu Moy <Matthieu.Moy@grenoble-inp•fr>,
Stefan Beller <stefanbeller@googlemail•com>
Subject: Re: Reproducible, corrupt packfile after fresh git-svn checkout message
Date: Fri, 09 Aug 2013 14:27:04 +0200 [thread overview]
Message-ID: <5204E018.4000808@gmail.com> (raw)
In-Reply-To: <7vsiyk9j6a.fsf@alter.siamese.dyndns.org>
Hello everybody!
I have some _very interesting_ news regarding this issue!
Here is the deal:
1. I was able to *reproduce the error on a machine of a coworker!*
2. I was able to rule out
- HDD: It's reproducible from /dev/shm
- Memory: Memory tests works fine
now the interesting part:
3. Occurs on Linux kernels 3.7.10, 3.8.x, 3.9.11, 3.10.5
_but not on:_ 3.6.11, 3.5.7 and 2.6.32
Both machines showing this problem are »Dell Latitude E6330« with an
»i5-3340M @ 2.70GHz« CPU. Mine running stock kernels, coworker using
plain Ubuntu 13.04.
Furthermore I need to stress, that we never had any issues with our
devices during daily _at all_.
So what to do best now?
- Ben
Am 08.08.2013 19:38, schrieb Junio C Hamano:
>>>> Can you try to reproduce with a version older than v1.8.3?
>>>> E.g. v1.8.2.3.
>>>
>>> It seems to run 'much better'
>>> v1.8.2.3 : 3/10 runs do fail
>>> fb56570 : 9/10 runs do fail
[..]
>>> They always fail on a big blob (39MB) as I wrote in my first e-mail:
>>>
>>> ben@n179 /tmp/project.git $ ~/projects/git.git/git-show 49cdd0b21a351f3366008615d2cf8d03ca943978 | wc -c
>>> error: sha1 mismatch 49cdd0b21a351f3366008615d2cf8d03ca943978
>>> fatal: bad object 49cdd0b21a351f3366008615d2cf8d03ca943978
>>> 0
>>> ben@n179 /tmp/project.git $ ~/projects/git.git/git-show 49cdd0b21a351f3366008615d2cf8d03ca943978 | wc -c
>>> 39517156
>
> Hmm, from this, and a later one ...
>
> ... I am reading that (1) the packfile and repository is basically
> OK, (2) reading that object sometimes fails, and (3) the symptom is
> not limited to fsck but anything that reads the object with
> parse_object(). And that symptom exists only on that single machine
> (I am assuming that the repository was bit-for-bit copied, not
> "cloned", for the purpose of testing it on the other machine). That
> makes me suspect something outside the control of Git (e.g. faulty
> memory or disk controller cable).
>
> Are there other big blobs in the repository, and would "show | wc" fail
> if you attempt to read it on that machine?
next prev parent reply other threads:[~2013-08-09 12:27 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <52037F47.5010302@exxcellent.de>
[not found] ` <52037F84.9060006@exxcellent.de>
2013-08-08 11:56 ` Reproducible, corrupt packfile after fresh gitml.jexpert
2013-08-08 12:13 ` Thomas Rast
2013-08-08 12:23 ` Reproducible, corrupt packfile after fresh git-svn checkout gitml.jexpert
2013-08-08 12:31 ` Thomas Rast
2013-08-08 13:12 ` Reproducible, corrupt packfile after fresh git-svn checkout message 3 of 20) gitml.jexpert
2013-08-08 13:18 ` Matthieu Moy
2013-08-08 13:27 ` Reproducible, corrupt packfile after fresh git-svn checkout message gitml.jexpert
2013-08-08 13:34 ` Matthieu Moy
2013-08-08 13:43 ` Reproducible, corrupt packfile after fresh git-svn checkout message (gitml: message 5 of 20) gitml.jexpert
2013-08-08 14:20 ` Thomas Rast
2013-08-08 14:53 ` Reproducible, corrupt packfile after fresh git-svn checkout message (gitml: message 5 of 20) (gitml: message 6 " Ben Tebulin
2013-08-08 15:28 ` Thomas Rast
2013-08-08 16:36 ` Reproducible, corrupt packfile after fresh git-svn checkout message Ben Tebulin
2013-08-08 16:48 ` Matthieu Moy
2013-08-08 17:38 ` Reproducible, corrupt packfile after fresh git-svn checkout message (gitml: message 5 of 20) (gitml: message 6 of 20) Junio C Hamano
2013-08-09 12:27 ` Ben Tebulin [this message]
2013-08-09 12:54 ` Reproducible, corrupt packfile after fresh git-svn checkout message Stefan Beller
2013-08-14 9:29 ` Reproducible, corrupt packfile after fresh git-svn checkouts - IDENTIFIED Ben Tebulin
2013-08-14 9:09 ` Reproducible, corrupt packfile after fresh git-svn checkout message Thomas Rast
2013-08-14 9:47 ` Ben Tebulin
2013-08-15 9:32 ` Ben Tebulin
2013-08-15 14:46 ` Junio C Hamano
2013-08-08 13:20 ` Reproducible, corrupt packfile after fresh git-svn checkout message 3 of 20) Thomas Rast
2013-08-08 12:38 ` Reproducible, corrupt packfile after fresh git-svn checkout Matthieu Moy
2013-08-08 12:41 ` Stefan Beller
2013-08-08 12:18 ` Reproducible, corrupt packfile after fresh Stefan Beller
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