# git-svn checksum mismatch importing large file 5 messages from 2008-09-17 to 2008-09-17. Participants: Pascal Obry, Björn Steinbrink, Avery Pennarun. Thread: https://gitlist.dev/t/15563 ## Pascal Obry, 2008-09-17 07:53 Subject: git-svn checksum mismatch importing large file Message-ID: <48D0B77E.7010308@obry.net> URL: https://gitlist.dev/e/48D0B77E.7010308%40obry.net ``` 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. -- --|------------------------------------------------------ --| Pascal Obry Team-Ada Member --| 45, rue Gabriel Peri - 78114 Magny Les Hameaux FRANCE --|------------------------------------------------------ --| http://www.obry.net --| "The best way to travel is by means of imagination" --| --| gpg --keyserver wwwkeys.pgp.net --recv-key C1082595 ``` ## Björn Steinbrink, 2008-09-17 08:25 Subject: Re: git-svn checksum mismatch importing large file Message-ID: <20080917082506.GA8849@atjola.homenet> URL: https://gitlist.dev/e/20080917082506.GA8849%40atjola.homenet In-Reply-To: <48D0B77E.7010308@obry.net> ``` 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? Björn ``` ## Pascal Obry, 2008-09-17 09:39 Subject: Re: git-svn checksum mismatch importing large file Message-ID: <48D0D03B.4040108@obry.net> URL: https://gitlist.dev/e/48D0D03B.4040108%40obry.net In-Reply-To: <20080917082506.GA8849@atjola.homenet> ``` Björn, > 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. Hum probably, I did not thought about this given the error message! > This should be fixed since 29c70e0b3e3183f86f93500882177d0c74069988, at > least it got me a useful error message when I tested it back then. > Avery, any ideas? I'm using Git on master. This commit is there, the error message is not that useful on my side :) Anyway, what's the best option? Is there a way to specify another tmp directory to use with git-svn? -- --|------------------------------------------------------ --| Pascal Obry Team-Ada Member --| 45, rue Gabriel Peri - 78114 Magny Les Hameaux FRANCE --|------------------------------------------------------ --| http://www.obry.net --| "The best way to travel is by means of imagination" --| --| gpg --keyserver wwwkeys.pgp.net --recv-key C1082595 ``` ## Björn Steinbrink, 2008-09-17 10:07 Subject: Re: git-svn checksum mismatch importing large file Message-ID: <20080917100759.GA11718@atjola.homenet> URL: https://gitlist.dev/e/20080917100759.GA11718%40atjola.homenet In-Reply-To: <48D0D03B.4040108@obry.net> ``` On 2008.09.17 11:39:07 +0200, Pascal Obry wrote: > > 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. > > Hum probably, I did not thought about this given the error message! Yeah, I only came up with the idea because of the previous breakage, otherwise I'd not have guessed that either :-) > > This should be fixed since 29c70e0b3e3183f86f93500882177d0c74069988, at > > least it got me a useful error message when I tested it back then. > > Avery, any ideas? > > I'm using Git on master. This commit is there, the error message is not > that useful on my side :) Yeah, I tested with yesterday's master as well, thus I was asking Avery if he has any clue of what's going on. Should probably have mentioned that... > Anyway, what's the best option? Is there a way to specify another tmp > directory to use with git-svn? Looks like the code honors the TMPDIR environment variable, but I didn't actually try that. Björn ``` ## Avery Pennarun, 2008-09-17 17:39 Subject: Re: git-svn checksum mismatch importing large file Message-ID: <32541b130809171039q22d3776aw45e6ec347c315248@mail.gmail.com> URL: https://gitlist.dev/e/32541b130809171039q22d3776aw45e6ec347c315248%40mail.gmail.com In-Reply-To: <20080917082506.GA8849@atjola.homenet> ``` On Wed, Sep 17, 2008 at 4:25 AM, Björn Steinbrink wrote: > 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 ```