Re: index-pack died on pread

[Robin Rosenberg <robin.rosenberg.lists@dewire.com>]

måndag 23 juli 2007 skrev Linus Torvalds:
> 
> On Mon, 23 Jul 2007, Michal Rokos wrote:
> >
> > fatal: cannot pread pack file: No such file or directory (n=0,
> > errno=2, fd=3, ptr=40452958, len=428, rdy=0, off=123601)
> 
> Ok, that's bogus. When "n" is zero, the errno (and thus the error string) 
> is not changed by pread, so that's a very misleading error report.
> 
> So what seems to have happened is that the pack-file is too short, so we 
> got a return value of 0, and then reported it as if it had an errno.
> 
> The reason for returning zero from pread would be:
> 
>  - broken pread. I don't think HPUX should be a problem, so that's 
>    probably not it.
> 
>  - the pack-file got truncated
> 
>  - the offset is corrupt, and points to beyond the size of the packfile.
> 
> In this case, since the offset is just 123601, I suspect it's a truncation 
> issue, and your pack-file is simply corrupt. Either because of some 
> problem with receiving it, or because of problems on the remote side.
> 
> > fetch-pack from 'git://git.kernel.org/pub/scm/git/git' failed.
> 
> One thing to look out for is that the "git.kernel.org" machines aren't the 
> "primary" ones, and the data gets mirrored from other machines. If the 
> mirroring is incomplete, I could imagine that the remote side simply ended 
> up terminating the connection, and you ended up with a partial pack-file.
> 
> Some of the kernel.org machines ran out of disk space the other day, so 
> maybe you happened to hit it in an unlucky window. Does it still happen?

Does cygwin have the same pread problem then.. ? after make NO_PREAD=1 with 1.5.2.4
clone works.

Here is my output with pread. Note that I'm cloning from or.cz, not kernel.org .

$ git clone git://repo.or.cz/git.git GIT 
Initialized empty Git repository in /roro/GIT/.git/ 
remote: Generating pack... 
remote: Done counting 56038 objects. 
remote: Deltifying 56038 objects... 
remote:  100% (56038/56038) done 
Indexing 56038 objects... 
remote: Total 56038 (delta 39190), reused 52555 (delta 36164) 
 100% (56038/56038) done 
Resolving 39190 deltas... 
fatal: cannot pread pack file: No such file or directory 
fatal: index-pack died with error code 128 
fetch-pack from 'git://repo.or.cz/git.git' failed.

-- robin