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Re: git-svn checksum mismatch importing large file

From
Avery Pennarun <apenwarr@gmail.com>
Date
Sep 17, 2008, 17:39 UTC
Message-ID
<32541b130809171039q22d3776aw45e6ec347c315248@mail.gmail.com>
In-Reply-To
<20080917082506.GA8849@atjola.homenet>
On Wed, Sep 17, 2008 at 4:25 AM, Björn Steinbrink <B.Steinbrink@gmx.de> wrote:
Show 19 quoted lines
> On 2008.09.17 09:53:34 +0200, Pascal Obry wrote:
>> I get this error:
>>
>> Checksum mismatch: trunk/data
>> expected: 7c59e4dd67b5a9fde6c61cada070537b
>>     got: 3fcd9d077a5aa51a784a452c9d78d6e0
>>
>> To reproduce launch run.sh in attached archive.
>>
>> I have had this problem since some time now and I finally got some time
>> to create a reproducer. I have reproduced this problem with yesterday
>> master Git version.
>
> Your /tmp is probably to small to hold the temporary file that git-svn
> creates. At least it doesn't fail for me unless I fill my /tmp first.
>
> This should be fixed since 29c70e0b3e3183f86f93500882177d0c74069988, at
> least it got me a useful error message when I tested it back then.
> Avery, any ideas?

It is possible that before my patch, you wouldn't have gotten that error message - instead you would have gotten a corrupt repository, which might have been caught later with an even more obscure-sounding error. It does appear that there's a write() call somewhere in git-svn that still isn't protected by an "or die", however, because we're getting an invalid checksum without getting a write error first.

In any case, if the problem is a giant file that won't fit in /tmp, the best we could do in git-svn is produce a better error message. /tmp is still the "right" place to put temp files. I agree with the suggestion to try pointing the TMPDIR environment variable somewhere else... or else make your /tmp bigger.

Have fun,
Avery
Previous: Björn Steinbrink
Message 5 of 5 in “git-svn checksum mismatch importing large file”
  1. Pascal ObrySep 17, 2008
  2. Björn SteinbrinkSep 17, 2008
  3. Pascal ObrySep 17, 2008
  4. Björn SteinbrinkSep 17, 2008
  5. Avery PennarunSep 17, 2008

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