RE: git on mounted CIFS is it Git or Cygwin

["Jason Pyeron" <jpyeron at pdinc dot us>]

It was working again for a moment, I am perplexed as there were no Cygwin/git updates. There have been windows updates. 

BLODA? Windows Defender?

-r--r--r-- 1 USER GROUP    1106509 Feb  5 17:50 pack-4d7f674008f52b936c8195a6d484d5e4d1a08e3c.pack
-r--r--r-- 1 USER GROUP         12 Feb  5 17:59 tmp_pack_qESkLc
drwxr-xr-x 1 USER GROUP          0 Feb  5 18:00 .
-r--r--r-- 1 USER GROUP         12 Feb  5 18:00 tmp_pack_5GRYNv

What is even more weird, is that it succeeded with a file mode of 0444/-r--r--r--

I have tried git for windows too, same issue. I think I should move this to the git mailing list.

-Jason 

> -----Original Message-----
> From: Jason Pyeron <jpyeron@pdinc.us>
> Sent: Sunday, January 26, 2020 4:56 PM
> To: 'cygwin@cygwin.com' <cygwin@cygwin.com>
> Subject: git on mounted CIFS is it Git or Cygwin
> 
> I have an issue with git in Cygwin on windows shares - this is recent (worked months ago).
> 
> I have narrowed it down to a component of git creating a file as 04xx instead of 06xx permissions.
> When I do the same with mktemp, I am able to write the file, but git gets a permission denied. I can
> chmod +w the temp file and then writing works, albeit too late.
> 
> Renaming the file works in either case.
> 
> What I need help in is determining if this is a bug or a special case of mounting a windows share? Is
> this a Cygwin issue or a git issue? Performing the fetch on the local file system has no issues.
> 
> I have updated Cygwin as of a few hours ago, no changes in behavior. What else can I provide to debug
> this better? Should this move over to the git mailing list?
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ GIT_TRACE=true git fetch REDACTED_REMOTENAME
> 13:31:59.678749 git.c:344               trace: built-in: git fetch REDACTED_REMOTENAME
> 13:32:03.393302 run-command.c:640       trace: run_command: unset GIT_DIR GIT_PREFIX; ssh
> REDACTED_USER2NAME@REDACTED_HOST2NAME 'git-upload-pack '\''REDACTED_REPO2PATH'\'''
> 13:32:18.448798 run-command.c:640       trace: run_command: git rev-list --objects --stdin --not --all
> --quiet
> remote: Counting objects: 315, done.
> 13:32:26.217550 run-command.c:640       trace: run_command: git index-pack --stdin -v --fix-thin '--
> keep=fetch-pack 2039 on REDACTED_HOSTNAME' --pack_header=2,315
> 13:32:31.645732 git.c:344               trace: built-in: git index-pack --stdin -v --fix-thin '--
> keep=fetch-pack 2039 on REDACTED_HOSTNAME' --pack_header=2,315
> fatal: write error: Permission denied
> fatal: index-pack failed
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ mktemp -p REDACTED_CWD/objects/pack/ tmp_test_XXXXX
> REDACTED_CWD/objects/pack/tmp_test_sdTdk
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ dir REDACTED_CWD/objects/pack/
> ...
> -r--r--r-- 1 REDACTED_USERNAME REDACTED_GROUPNAME         12 Jan 26 13:27 tmp_pack_dxknyW
> -r--r--r-- 1 REDACTED_USERNAME REDACTED_GROUPNAME         12 Jan 26 12:52 tmp_pack_FPEnsr
> -r--r--r-- 1 REDACTED_USERNAME REDACTED_GROUPNAME         12 Jan 26 13:32 tmp_pack_tpiIGW
> -rw-r--r-- 1 REDACTED_USERNAME REDACTED_GROUPNAME          0 Jan 26 13:29 tmp_test_sdTdk
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ mv REDACTED_CWD/objects/pack/tmp_pack_tpiIGW REDACTED_CWD/objects/pack/tmp_pack_tpiIGW.mv
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ mv REDACTED_CWD/objects/pack/tmp_pack_tpiIGW.mv REDACTED_CWD/objects/pack/tmp_pack_tpiIGW
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ hexdump.exe -C REDACTED_CWD/objects/pack/tmp_pack_tpiIGW
> 00000000  50 41 43 4b 00 00 00 02  00 00 01 3b              |PACK.......;|
> 0000000c
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ echo test >> REDACTED_CWD/objects/pack/tmp_pack_tpiIGW
> -bash: REDACTED_CWD/objects/pack/tmp_pack_tpiIGW: Permission denied
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ chmod +w REDACTED_CWD/objects/pack/tmp_pack_tpiIGW
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ echo test >> REDACTED_CWD/objects/pack/tmp_pack_tpiIGW
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ GIT_TRACE_PACK_ACCESS=true GIT_TRACE_PACKET=true GIT_TRACE_PERFORMANCE=true GIT_TRACE_SETUP=true
> GIT_TRACE=true git fetch REDACTED_REMOTENAME
> ...
> 15:00:00.303534 pkt-line.c:80           packet:        fetch> have
> 1997703e1a01d311e54c32ece1776795209e61e1
> 15:00:00.306043 pkt-line.c:80           packet:        fetch> 0000
> 15:00:00.312236 pkt-line.c:80           packet:        fetch< NAK
> 15:00:00.317800 pkt-line.c:80           packet:        fetch> done
> 15:00:00.550242 pkt-line.c:80           packet:        fetch< NAK
> 15:00:00.555607 pkt-line.c:80           packet:        fetch< ACK
> 3466429b2926acc6e9e2d3c4c1c9ef86d2c82860
> 15:00:04.088156 pkt-line.c:80           packet:     sideband< \2Counting objects: 321, done.
> remote: Counting objects: 321, done.
> 15:00:04.791067 pkt-line.c:80           packet:     sideband< PACK ...
> 15:00:04.829401 run-command.c:643       trace: run_command: git index-pack --stdin -v --fix-thin '--
> keep=fetch-pack 1706 on REDACTED_HOSTNAME' --pack_header=2,321
> 15:00:17.109869 trace.c:377             setup: git_dir: .
> 15:00:17.112705 trace.c:378             setup: git_common_dir: .
> 15:00:17.114454 trace.c:379             setup: worktree: (null)
> 15:00:17.116820 trace.c:380             setup: cwd: REDACTED_CWD
> 15:00:17.118969 trace.c:381             setup: prefix: (null)
> 15:00:17.123794 git.c:419               trace: built-in: git index-pack --stdin -v --fix-thin '--
> keep=fetch-pack 1706 on REDACTED_HOSTNAME' --pack_header=2,321
> 15:00:19.063715 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 22055
> 15:00:19.147310 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 22214
> 15:00:19.160865 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 22375
> 15:00:19.264012 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 22578
> 15:00:19.268455 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 23505
> 15:00:19.318936 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 23706
> 15:00:19.326812 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 24045
> 15:00:19.335579 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 149489
> 15:00:19.447526 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 182724
> 15:00:19.452150 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 182883
> 15:00:19.456088 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 183044
> 15:00:19.571515 packfile.c:1592         ./objects/pack/pack-
> 1ed0c0228d9db2201f0445b87af08494b0b29465.pack 183202
> fatal: write error: Permission denied
> 15:00:19.595784 trace.c:477             performance: 2.565797600 s: git command: /usr/libexec/git-
> core/git index-pack --stdin -v --fix-thin '--keep=fetch-pack 1706 on REDACTED_HOSTNAME' --
> pack_header=2,321
> fatal: index-pack failed
> 15:00:19.617599 trace.c:477             performance: 78.536082300 s: git command: git fetch
> REDACTED_REMOTENAME
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ mount
> REDACTED_SHARENAME/REDACTED_REPOPATH on /tmp/foo3 type hgfs (binary,notexec,noacl,user)
> REDACTED_SHARENAME/REDACTED_REPOPATH on /tmp/foo2 type hgfs (binary,notexec,user)
> REDACTED_SHARENAME/REDACTED_REPOPATH on /tmp/foo1 type hgfs (binary,notexec,user)
> REDACTED_SHARENAME on /mnt/REDACTED_SHAREMNT type hgfs (binary,notexec,noacl,user)
> C:/cygwin64/bin on /usr/bin type ntfs (binary,auto)
> C:/cygwin64/lib on /usr/lib type ntfs (binary,auto)
> C:/cygwin64 on / type ntfs (binary,auto)
> C: on /cygdrive/c type ntfs (binary,posix=0,user,noumount,auto)
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME REDACTED_CWD
> $ cygcheck.exe -s (paired down results)
> 
> Cygwin Configuration Diagnostics
> Current System Time: Sun Jan 26 20:14:43 2020
> 
> Windows 10 Professional Ver 10.0 Build 17763
> 
> ...
>  3508k 2019/12/21 C:\cygwin64\bin\cygwin1.dll
>     Cygwin DLL version info:
>         DLL version: 3.1.2
>         DLL epoch: 19
>         DLL old termios: 5
>         DLL malloc env: 28
>         Cygwin conv: 181
>         API major: 0
>         API minor: 340
>         Shared data: 5
>         DLL identifier: cygwin1
>         Mount registry: 3
>         Cygwin registry name: Cygwin
>         Installations name: Installations
>         Cygdrive default prefix:
>         Build date:
>         Shared id: cygwin1S5
> 
> ...
> No Cygwin services found.
> 
> 
> Cygwin Package Information
> Package                 Version            Status
> _autorebase             001007-1           OK
> base-cygwin             3.8-1              OK
> base-files              4.3-2              OK
> bash                    4.4.12-3           OK
> cygrunsrv               1.62-1             OK
> cygutils                1.4.16-2           OK
> cygwin                  3.1.2-1            OK
> git                     2.21.0-1           OK
> 
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME /tmp/foo4
> $ git clone REDACTED_CWD --bare ./
> Cloning into bare repository '.'...
> done.
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME /tmp/foo4
> $ git remote add REDACTED_REMOTENAME REDACTED_USER2NAME@REDACTED_HOST2NAME:REDACTED_REPO2PATH
> 
> REDACTED_USERNAME@REDACTED_HOSTNAME /tmp/foo4
> $ git fetch REDACTED_REMOTENAME autocommit-20191028-1148-from-master
> remote: Counting objects: 33, done.
> remote: Total 33 (delta 0), reused 2 (delta 0)
> Unpacking objects: 100% (33/33), done.
> From REDACTED_HOST2NAME:REDACTED_REPO2PATH
>  * branch                  autocommit-20191028-1148-from-master -> FETCH_HEAD
>  * [new branch]            autocommit-20191028-1148-from-master -> REDACTED_REMOTENAME/autocommit-
> 20191028-1148-from-master
> 
> 
> 
> --
> Jason Pyeron  | Architect
> PD Inc        |
> 10 w 24th St  |
> Baltimore, MD |
> 
> .mil: jason.j.pyeron.ctr@mail.mil
> .com: jpyeron@pdinc.us
> tel : 202-741-9397
> 



--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple