Re: t0025 flaky on OSX

2017-04-26 Thread Lars Schneider

> On 26 Apr 2017, at 06:12, Torsten Bögershausen  wrote:
> 
> 
>>> 
>>> So all in all it seams as if there is a very old race condition here,
>>> which we "never" have seen yet.
>>> Moving the file to a different inode number fixes the test case,
>>> Git doesn't treat it as unchanged any more.
>> 
>> Thanks a lot for investigating this! Would you mind posting the
>> fix as patch?
> 
> That's ongoing.
> TC #3 and #4 are fixable, but #5 resists to be cured so far.
> I think we need a touch and sleep or so, more the next days (or weeks)

Cool! Actually #3 seems to cause most of the trouble.
Therefore I think a patch for #3 and #4 would already be valuable!

Thanks,
Lars

Re: t0025 flaky on OSX

2017-04-25 Thread Torsten Bögershausen




So all in all it seams as if there is a very old race condition here,
which we "never" have seen yet.
Moving the file to a different inode number fixes the test case,
Git doesn't treat it as unchanged any more.


Thanks a lot for investigating this! Would you mind posting the
fix as patch?


That's ongoing.
TC #3 and #4 are fixable, but #5 resists to be cured so far.
I think we need a touch and sleep or so, more the next days (or weeks)


Re: t0025 flaky on OSX

2017-04-25 Thread Lars Schneider

> On 24 Apr 2017, at 21:48, Torsten Bögershausen  wrote:
> 
> On 2017-04-24 19:00, Torsten Bögershausen wrote:
>> On 2017-04-24 18:45, Lars Schneider wrote:
>>> Hi,
>>> 
>>> "t0025.3 - crlf=true causes a CRLF file to be normalized" failed 
>>> sporadically on next and master recently: 
>>> https://travis-ci.org/git/git/jobs/225084459#L2382
>>> https://travis-ci.org/git/git/jobs/223830505#L2342
>>> 
>>> Are you aware of a race condition in the code
>>> or in the test?
>> Not yet - I'll have a look
>> 
> 
> So,
> The test failed under Linux & pu of the day, using Peff's
> stress script.
> 
> not ok 3 - crlf=true causes a CRLF file to be normalized
> 
> The good case (simplified):
> $ git status
>   modified:   CRLFonly
> 
> Untracked files:
>.gitattributes
> 
> 
> $ git diff | tr "\015" Q
> warning: CRLF will be replaced by LF in CRLFonly.
> The file will have its original line endings in your working directory.
> diff --git a/CRLFonly b/CRLFonly
> index 44fc21c..666dbf4 100644
> --- a/CRLFonly
> +++ b/CRLFonly
> @@ -1,7 +1,7 @@
> -IQ
> -amQ
> -veryQ
> -veryQ
> -fineQ
> -thankQ
> -youQ
> +I
> +am
> +very
> +very
> +fine
> +thank
> +you
> 
> 
> The failed case:
> $ git status
> Untracked files:
>.gitattributes
> 
> ---
> $ ls -al -i
> total 28
> 3430195 drwxr-xr-x 3 tb tb 4096 Apr 24 21:19 .
> 3427617 drwxr-xr-x 3 tb tb 4096 Apr 24 21:19 ..
> 3429958 -rw-r--r-- 1 tb tb   37 Apr 24 21:19 CRLFonly
> 3432574 drwxr-xr-x 8 tb tb 4096 Apr 24 21:27 .git
> 3425599 -rw-r--r-- 1 tb tb   14 Apr 24 21:19 .gitattributes
> 3430089 -rw-r--r-- 1 tb tb   24 Apr 24 21:19 LFonly
> 3430174 -rw-r--r-- 1 tb tb   36 Apr 24 21:19 LFwithNUL
> 
> -
> #After
> $ mv CRLFonly tmp
> $ cp tmp CRLFonly
> $ ls -al -i
> 3430195 drwxr-xr-x 3 tb tb 4096 Apr 24 21:36 .
> 3427617 drwxr-xr-x 3 tb tb 4096 Apr 24 21:19 ..
> 3401599 -rw-r--r-- 1 tb tb   37 Apr 24 21:36 CRLFonly
> 3432574 drwxr-xr-x 8 tb tb 4096 Apr 24 21:36 .git
> 3425599 -rw-r--r-- 1 tb tb   14 Apr 24 21:19 .gitattributes
> 3430089 -rw-r--r-- 1 tb tb   24 Apr 24 21:19 LFonly
> 3430174 -rw-r--r-- 1 tb tb   36 Apr 24 21:19 LFwithNUL
> 3429958 -rw-r--r-- 1 tb tb   37 Apr 24 21:19 tmp
> 
> $ git status
>   modified:   CRLFonly
> Untracked files:
>.gitattributes
>tmp
> 
> 
> So all in all it seams as if there is a very old race condition here,
> which we "never" have seen yet.
> Moving the file to a different inode number fixes the test case,
> Git doesn't treat it as unchanged any more.

Thanks a lot for investigating this! Would you mind posting the
fix as patch?

Thanks,
Lars

Re: t0025 flaky on OSX

2017-04-24 Thread Torsten Bögershausen
On 2017-04-24 19:00, Torsten Bögershausen wrote:
> On 2017-04-24 18:45, Lars Schneider wrote:
>> Hi,
>>
>> "t0025.3 - crlf=true causes a CRLF file to be normalized" failed 
>> sporadically on next and master recently: 
>> https://travis-ci.org/git/git/jobs/225084459#L2382
>> https://travis-ci.org/git/git/jobs/223830505#L2342
>>
>> Are you aware of a race condition in the code
>> or in the test?
> Not yet - I'll have a look
> 

So,
The test failed under Linux & pu of the day, using Peff's
stress script.

not ok 3 - crlf=true causes a CRLF file to be normalized

The good case (simplified):
$ git status
   modified:   CRLFonly

Untracked files:
.gitattributes


$ git diff | tr "\015" Q
warning: CRLF will be replaced by LF in CRLFonly.
The file will have its original line endings in your working directory.
diff --git a/CRLFonly b/CRLFonly
index 44fc21c..666dbf4 100644
--- a/CRLFonly
+++ b/CRLFonly
@@ -1,7 +1,7 @@
-IQ
-amQ
-veryQ
-veryQ
-fineQ
-thankQ
-youQ
+I
+am
+very
+very
+fine
+thank
+you


The failed case:
$ git status
Untracked files:
.gitattributes

---
$ ls -al -i
total 28
3430195 drwxr-xr-x 3 tb tb 4096 Apr 24 21:19 .
3427617 drwxr-xr-x 3 tb tb 4096 Apr 24 21:19 ..
3429958 -rw-r--r-- 1 tb tb   37 Apr 24 21:19 CRLFonly
3432574 drwxr-xr-x 8 tb tb 4096 Apr 24 21:27 .git
3425599 -rw-r--r-- 1 tb tb   14 Apr 24 21:19 .gitattributes
3430089 -rw-r--r-- 1 tb tb   24 Apr 24 21:19 LFonly
3430174 -rw-r--r-- 1 tb tb   36 Apr 24 21:19 LFwithNUL

-
#After
$ mv CRLFonly tmp
$ cp tmp CRLFonly
$ ls -al -i
3430195 drwxr-xr-x 3 tb tb 4096 Apr 24 21:36 .
3427617 drwxr-xr-x 3 tb tb 4096 Apr 24 21:19 ..
3401599 -rw-r--r-- 1 tb tb   37 Apr 24 21:36 CRLFonly
3432574 drwxr-xr-x 8 tb tb 4096 Apr 24 21:36 .git
3425599 -rw-r--r-- 1 tb tb   14 Apr 24 21:19 .gitattributes
3430089 -rw-r--r-- 1 tb tb   24 Apr 24 21:19 LFonly
3430174 -rw-r--r-- 1 tb tb   36 Apr 24 21:19 LFwithNUL
3429958 -rw-r--r-- 1 tb tb   37 Apr 24 21:19 tmp

$ git status
modified:   CRLFonly
Untracked files:
.gitattributes
tmp


So all in all it seams as if there is a very old race condition here,
which we "never" have seen yet.
Moving the file to a different inode number fixes the test case,
Git doesn't treat it as unchanged any more.






Re: t0025 flaky on OSX

2017-04-24 Thread Torsten Bögershausen
On 2017-04-24 18:45, Lars Schneider wrote:
> Hi,
> 
> "t0025.3 - crlf=true causes a CRLF file to be normalized" failed 
> sporadically on next and master recently: 
> https://travis-ci.org/git/git/jobs/225084459#L2382
> https://travis-ci.org/git/git/jobs/223830505#L2342
> 
> Are you aware of a race condition in the code
> or in the test?
Not yet - I'll have a look