Re: t1450-fsck (sometimes/often) failes on Mac OS X

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Am 16.07.2012 um 09:57 schrieb Thomas Rast:

> Torsten Bögershausen <tboegi@xxxxxx> writes:
> 
>> Now it appeared on next as well, so it's time to look a little bit deeper.
>> 
>> This test case of t1450 fails:
>> test_expect_success 'tag pointing to something else than its type' '
>> 
>> To debug more, I added an exit 0 here to inspect the file named out:
>> diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
>> index 5b79c51..f1f45c9 100755
>> --- a/t/t1450-fsck.sh
>> +++ b/t/t1450-fsck.sh
>> @@ -179,6 +179,7 @@ test_expect_success 'tag pointing to something else than its type' '
>>        test_when_finished "git update-ref -d refs/tags/wrong" &&
>>        test_must_fail git fsck --tags 2>out &&
>>        cat out &&
>> +       exit 0
>>        grep "error in tag.*broken links" out
>> '
>> 
>> Linux:
>> error: Object 63499e4ea8e096b831515ceb1d5a7593e4d87ae5 is a blob, not a commit
>> error in tag 66f6581d549f70e05ca586bc2df5c15a95662c36: broken links
>> error in tag 66f6581d549f70e05ca586bc2df5c15a95662c36: could not load tagged object
>> 
>> Mac OS X:
>> error: Object 63499e4ea8e096b831515ceb1d5a7593e4d87ae5 is a commit, not a blob
>> error: 63499e4ea8e096b831515ceb1d5a7593e4d87ae5: object corrupt or missing
> 
> What OS X are you running?  I started a loop
> 
>  while : ; do ./t1450-fsck.sh || break; done
> 
> and it hasn't failed yet.  It is
> 
>  $ uname -a
>  Darwin mackeller.inf.ethz.ch 11.4.0 Darwin Kernel Version 11.4.0: Mon Apr  9 19:32:15 PDT 2012; root:xnu-1699.26.8~1/RELEASE_X86_64 x86_64
> 
 uname -a
Darwin birne.lan 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun  7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 i386
> 
> You can run 'git ls-files --debug' which should give you all the data in
> the index, and then perhaps run diff over that to determine the
> differences...
> 

That lloks like this:

fileA
  ctime: 1342453768:0
  mtime: 1342453768:0
  dev: 234881026        ino: 92698027
  uid: 1500     gid: 20
  size: 4       flags: 5
fileB
  ctime: 1342453768:0
  mtime: 1342453768:0
  dev: 234881026        ino: 92698053
  uid: 1500     gid: 20
  size: 4       flags: 5

==================
But what is interesting, is that 
a) When I clone a fresh copy from git.git, it works OK. After some activity with the working dir,
  suddenly t1450 fails. Switching back to e.g. v1.7.11 makes t1450  pass again.
  Switching to origin/next , running make brings back the problem, t1450 fails

b) The failure seems to be time critical. When I run the test yesterday evening,
   being logged in via ssh makes the test pass.
   Sitting at the machine makes it fail.

c) It seems as if there is a problem when writing to disk.
   Could be the index file
   (git ls-files --debug does not dump the whole index, does it?)

d) As Peff pointed out, the fsck itself is not time critical.
  
Thanks for looking into it




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