1.7.1: self test failures on Cygwin #6655

fd00 · 2023-11-11T07:52:16Z

Reproduction steps

$ wget https://github.com/libgit2/libgit2/archive/refs/tags/v1.7.1.tar.gz
$ tar xf v1.7.1.tar.gz
$ cd libgit2-1.7.1
$ cmake -G Ninja -DBUILD_CLI:BOOL=OFF -DBUILD_EXAMPLES:BOOL=ON -DREGEX_BACKEND:STRING=pcre2 -DUSE_SSH:BOOL=ON .
$ ninja
$ ninja test

https://github.com/cygwin/scallywag/actions/runs/6831370933/job/18580898875

Expected behavior

All test pass

Actual behavior

Test project /cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/build
      Start  1: offline
 1/12 Test  #1: offline ..........................***Failed  453.91 sec
      Start  2: invasive
 2/12 Test  #2: invasive .........................***Failed    1.52 sec
      Start  3: online
 3/12 Test  #3: online ...........................   Passed   39.53 sec
      Start  4: online_customcert
 4/12 Test  #4: online_customcert ................   Passed    2.41 sec
      Start  5: gitdaemon
 5/12 Test  #5: gitdaemon ........................   Passed    6.19 sec
      Start  6: gitdaemon_namespace
 6/12 Test  #6: gitdaemon_namespace ..............   Passed    0.11 sec
      Start  7: gitdaemon_sha256
 7/12 Test  #7: gitdaemon_sha256 .................   Passed    0.11 sec
      Start  8: ssh
 8/12 Test  #8: ssh ..............................   Passed    7.01 sec
      Start  9: proxy
 9/12 Test  #9: proxy ............................   Passed    5.20 sec
      Start 10: auth_clone
10/12 Test #10: auth_clone .......................   Passed    1.76 sec
      Start 11: auth_clone_and_push
11/12 Test #11: auth_clone_and_push ..............   Passed    6.11 sec
      Start 12: util
12/12 Test #12: util .............................***Failed    1.05 sec

75% tests passed, 3 tests failed out of 12

Total Test time (real) = 524.93 sec

The following tests FAILED:
          1 - offline (Failed)
          2 - invasive (Failed)
         12 - util (Failed)
Errors while running CTest
Output from these tests are in: /cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/build/Testing/Temporary/LastTest.log

1/12 Test: offline

  1) Failure:
checkout::conflict::name_mangled_file_exists_in_workdir [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/checkout/conflict.c:160]
  OID mismatch: &expected != &actual
  "b42712cfe99a1a500b2a51fe984e0b8a7702ba11" != "a3102456e459e506a2e51646d2ffdbe5785fb5ca"

  2) Failure:
iterator::index::case_folding [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/iterator/index.c:51]
  String mismatch: expected_names[count] != entry->path
  'B' != 'a' (at byte 0)

  3) Failure:
iterator::workdir::skips_unreadable_dirs [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/iterator/workdir.c:704]
  String mismatch: "c/foo" != e->path
  'c/foo' != 'b/problem' (at byte 0)

  4) Failure:
repo::init::unwriteable_directory [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/repo/init.c:688]
  Function call succeeded: git_repository_init(&repo, "unwriteable/repo", 0)
  no error, expected non-zero return

  5) Failure:
status::worktree::whole_repository [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/status/worktree.c:41]
  counts.expected_entry_count != counts.entry_count
  16 != 21

  6) Failure:
status::worktree::show_index_and_workdir [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/status/worktree.c:69]
  counts.expected_entry_count != counts.entry_count
  16 != 21

  7) Failure:
status::worktree::show_workdir_only [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/status/worktree.c:71]
  0 != counts.wrong_sorted_path
  0 != 13

  8) Failure:
status::worktree::swap_subdir_and_file [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/status/worktree.c:182]
  counts.expected_entry_count != counts.entry_count
  22 != 27

  9) Failure:
status::worktree::swap_subdir_with_recurse_and_pathspec [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/status/worktree.c:216]
  counts.expected_entry_count != counts.entry_count
  23 != 28

  10) Failure:
status::worktree::conflict_has_no_oid [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/status/worktree.c:764]
  16 != git_status_list_entrycount(statuslist)
  16 != 22

  11) Failure:
status::worktree::update_stat_cache_0 [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/status/worktree.c:1034]
  entry_count0 != max_i
  16 != 21

  12) Failure:
status::worktree::unreadable [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/status/worktree.c:1118]
  0 != counts.wrong_status_flags_count
  0 != 1

2/12 Test: invasive

  1) Failure:
repo::init::unwriteable_directory [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/libgit2/repo/init.c:688]
  Function call succeeded: git_repository_init(&repo, "unwriteable/repo", 0)
  no error, expected non-zero return

12/12 Test: util

  1) Failure:
path::validate_current_user_ownership [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/util/path.c:764]
  is_cur != (geteuid() == 0)
  1 != 0

  2) Failure:
string::strcasecmp [/cygdrive/d/a/scallywag/playground/libgit2-1.7.1-1.x86_64/src/libgit2-1.7.1/tests/util/string.c:114]
  Expression is not true: strcasecmp("rt\303\202of", "rt dev\302\266h") > 0

Version of libgit2 (release number or SHA1)

1.7.1

Operating system(s) tested

Cygwin (x86-64)

The text was updated successfully, but these errors were encountered:

ethomson · 2023-11-11T17:56:59Z

Interesting. Did prior versions work? Can you give some more details about your environment? I'm not very familiar with the state of the art with Cygwin.

boretrk · 2023-11-14T18:41:31Z

There is a bunch of warning: array subscript has type ‘char’ from the character classification calls.
That may cause any character with a value over 127 to be misclassified.
We should probably cast them explicitly to unsigned char before passing them on to isspace/isalnum/isdigit to make sure that they don't get sign-extended.

It could explain the last failure in strcasecmp.

fd00 · 2023-11-18T12:41:56Z

Did prior versions work?

Sorry, I have not checked with other versions.

Can you give some more details about your environment?

The test is done with job.build.runs-on: windows-latest in GitHub Actions.

gcc version

$ gcc -v --version
Using built-in specs.
COLLECT_AS_OPTIONS='--version'
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-cygwin/11/lto-wrapper.exe
gcc (GCC) 11.4.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


Target: x86_64-pc-cygwin
Configured with: /mnt/share/cygpkgs/gcc/gcc.x86_64/src/gcc-11.4.0/configure --srcdir=/mnt/share/cygpkgs/gcc/gcc.x86_64/src/gcc-11.4.0 --prefix=/usr --exec-prefix=/usr --localstatedir=/var --sysconfdir=/etc --docdir=/usr/share/doc/gcc --htmldir=/usr/share/doc/gcc/html -C --build=x86_64-pc-cygwin --host=x86_64-pc-cygwin --target=x86_64-pc-cygwin --without-libiconv-prefix --without-libintl-prefix --libexecdir=/usr/lib --with-gcc-major-version-only --enable-shared --enable-shared-libgcc --enable-static --enable-version-specific-runtime-libs --enable-bootstrap --enable-__cxa_atexit --with-dwarf2 --with-tune=generic --enable-languages=ada,c,c++,d,fortran,lto,objc,obj-c++,jit --enable-graphite --enable-threads=posix --enable-libatomic --enable-libgomp --enable-libquadmath --enable-libquadmath-support --disable-libssp --enable-libada --disable-symvers --disable-multilib --with-gnu-ld --with-gnu-as --with-cloog-include=/usr/include/cloog-isl --without-libiconv-prefix --without-libintl-prefix --with-system-zlib --enable-linker-build-id --with-default-libstdcxx-abi=gcc4-compatible --enable-libstdcxx-filesystem-ts
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 11.4.0 (GCC) 
COLLECT_GCC_OPTIONS='-v' '--version' '-mtune=generic' '-march=x86-64' '-dumpdir' 'a-'
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GNU C17 (GCC) version 11.4.0 (x86_64-pc-cygwin)
	compiled by GNU C version 11.4.0, GMP version 6.2.1, MPFR version 4.2.0-p9, MPC version 1.3.1, isl version isl-0.26-GMP

warning: GMP header version 6.2.1 differs from library version 6.3.0.
warning: MPFR header version 4.2.0-p9 differs from library version 4.2.1.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
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 /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/as.exe -v --version -o /tmp/ccFWirEy.o /tmp/ccvC1eR6.s
GNU assembler version 2.41 (x86_64-pc-cygwin) using BFD version (GNU Binutils) 2.41
GNU assembler (GNU Binutils) 2.41
Copyright (C) 2023 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or later.
This program has absolutely no warranty.
This assembler was configured for a target of `x86_64-pc-cygwin'.
COMPILER_PATH=/usr/lib/gcc/x86_64-pc-cygwin/11/:/usr/lib/gcc/x86_64-pc-cygwin/11/:/usr/lib/gcc/x86_64-pc-cygwin/:/usr/lib/gcc/x86_64-pc-cygwin/11/:/usr/lib/gcc/x86_64-pc-cygwin/:/usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/
LIBRARY_PATH=/usr/lib/gcc/x86_64-pc-cygwin/11/:/usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/lib/../lib/:/usr/lib/gcc/x86_64-pc-cygwin/11/../../../../lib/:/lib/../lib/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/lib/:/usr/lib/gcc/x86_64-pc-cygwin/11/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v' '--version' '-mtune=generic' '-march=x86-64' '-dumpdir' 'a.'
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collect2 version 11.4.0
/usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/ld -plugin /usr/lib/gcc/x86_64-pc-cygwin/11/cyglto_plugin.dll -plugin-opt=/usr/lib/gcc/x86_64-pc-cygwin/11/lto-wrapper.exe -plugin-opt=-fresolution=/tmp/ccdEMf4m.res -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lcygwin -plugin-opt=-pass-through=-ladvapi32 -plugin-opt=-pass-through=-lshell32 -plugin-opt=-pass-through=-luser32 -plugin-opt=-pass-through=-lkernel32 -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc --build-id -m i386pep --wrap _Znwm --wrap _Znam --wrap _ZdlPv --wrap _ZdaPv --wrap _ZnwmRKSt9nothrow_t --wrap _ZnamRKSt9nothrow_t --wrap _ZdlPvRKSt9nothrow_t --wrap _ZdaPvRKSt9nothrow_t -Bdynamic --dll-search-prefix=cyg --tsaware --version /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../lib/crt0.o /usr/lib/gcc/x86_64-pc-cygwin/11/crtbegin.o -L/usr/lib/gcc/x86_64-pc-cygwin/11 -L/usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/lib/../lib -L/usr/lib/gcc/x86_64-pc-cygwin/11/../../../../lib -L/lib/../lib -L/usr/lib/../lib -L/usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/lib -L/usr/lib/gcc/x86_64-pc-cygwin/11/../../.. /tmp/ccFWirEy.o -lgcc_s -lgcc -lcygwin -ladvapi32 -lshell32 -luser32 -lkernel32 -lgcc_s -lgcc /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../lib/default-manifest.o /usr/lib/gcc/x86_64-pc-cygwin/11/crtend.o
GNU ld (GNU Binutils) 2.41
Copyright (C) 2023 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later version.
This program has absolutely no warranty.
COLLECT_GCC_OPTIONS='-v' '--version' '-mtune=generic' '-march=x86-64' '-dumpdir' 'a.'

boretrk · 2023-12-14T18:46:03Z

Could you compile with #6679 and see if any of the tests passes?

fd00 · 2023-12-15T23:06:43Z

Version of libgit2 (release number or SHA1)

CI result

https://github.com/cygwin/scallywag/actions/runs/7227721959/job/19696000973

Actual Behavior

1/12 Test: offline

  1) Failure:
filter::systemattrs::reads_system_attributes [/cygdrive/d/a/scallywag/playground/libgit2-1.8.0-1.x86_64/src/libgit2/tests/libgit2/filter/systemattrs.c:13]
  Function call failed: unlink("crlf/.gitattributes")

  2) Failure:
filter::systemattrs::reads_system_attributes [/cygdrive/d/a/scallywag/playground/libgit2-1.8.0-1.x86_64/src/libgit2/tests/libgit2/filter/systemattrs.c:31]
  Function call failed: unlink(system_attr_path.ptr)

2/12 Test: invasive

  1) Failure:
repo::init::unwriteable_directory [/cygdrive/d/a/scallywag/playground/libgit2-1.8.0-1.x86_64/src/libgit2/tests/libgit2/repo/init.c:688]
  Function call succeeded: git_repository_init(&repo, "unwriteable/repo", 0)
  error 0 - no error

12/12 Test: util

  1) Failure:
path::validate_current_user_ownership [/cygdrive/d/a/scallywag/playground/libgit2-1.8.0-1.x86_64/src/libgit2/tests/util/path.c:764]
  is_cur != (geteuid() == 0)
  1 != 0

  2) Failure:
string::strcasecmp [/cygdrive/d/a/scallywag/playground/libgit2-1.8.0-1.x86_64/src/libgit2/tests/util/string.c:114]
  Expression is not true: strcasecmp("rt\303\202of", "rt dev\302\266h") > 0

boretrk · 2023-12-17T00:02:42Z

OK, I missed one isprint() in the pr, but I don't see that it would be cause any of the remaining failures.

I don't really know why we are testing for sign in strcasecmp since its a posix-function that we don't overload. (There is a p_strcasecmp define that we don't use.)
From https://pubs.opengroup.org/onlinepubs/9699919799/

When the LC_CTYPE category of the locale being used is from the POSIX locale, these functions shall behave as if the strings had been converted to lowercase and then a byte comparison performed. Otherwise, the results are unspecified.

But I don't see anything that requires the byte to be signed/unsigned.
IMO that test is wrong here.

Functions that cares about signedness of strcasecmp with non-ascii characters will behave differently on systems where char is signed I suppose, but for that we have git__strcasecmp() that does unsigned compare.

The rest of the fails feels a lot like Windows filesystem not behaving as one one expect from a POSIX system.
We have p_unlink() in src/util/win_32/posix_w32.c that makes repeated attempts for some reason.
But since you are using cygwin I assume that the posix functions are being used and the cygwin implementation of unlink might not do that.

I noticed that one of the cmakelists have a if(WIN32 AND NOT CYGWIN)
I didn't see if those were set for you but they probably should be.
So maybe try with cmake -DWIN32 -DCYGWIN just in case those aren't automatically detected?

fd00 · 2023-12-25T01:03:41Z

cmake built for cygwin has the following settings

$ cat CMakeLists.txt
project(EXAMPLE)
get_cmake_property(_variableNames VARIABLES)
list (SORT _variableNames)
foreach (_variableName CYGWIN WIN32)
    message(STATUS "${_variableName}=${${_variableName}}")
endforeach()

$ cmake -Wno-dev .
CMake Warning at /usr/share/cmake-3.25.3/Modules/Platform/CYGWIN.cmake:15 (message):
  CMake no longer defines WIN32 on Cygwin!

  (1) If you are just trying to build this project, ignore this warning or
  quiet it by setting CMAKE_LEGACY_CYGWIN_WIN32=0 in your environment or in
  the CMake cache.  If later configuration or build errors occur then this
  project may have been written under the assumption that Cygwin is WIN32.
  In that case, set CMAKE_LEGACY_CYGWIN_WIN32=1 instead.

  (2) If you are developing this project, add the line

    set(CMAKE_LEGACY_CYGWIN_WIN32 0) # Remove when CMake >= 2.8.4 is required

  at the top of your top-level CMakeLists.txt file or set the minimum
  required version of CMake to 2.8.4 or higher.  Then teach your project to
  build on Cygwin without WIN32.
Call Stack (most recent call first):
  /usr/share/cmake-3.25.3/Modules/CMakeSystemSpecificInformation.cmake:45 (include)
  CMakeLists.txt:1 (project)


-- CYGWIN=1
-- WIN32=0
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/cmake
$

-DWIN32, which causes a conflict with w32api and makes it difficult to compile.

/usr/include/w32api/winsock2.h:1035:34: error: conflicting types for ‘setsockopt’; have ‘int(SOCKET,  int,  int,  const char *, int)’ {aka ‘int(long long unsigned int,  int,  int,  const char *, int)’}
 1035 |   WINSOCK_API_LINKAGE int WSAAPI setsockopt(SOCKET s,int level,int optname,const char *optval,int optlen);
      |                                  ^~~~~~~~~~

fd00 · 2024-02-16T12:33:14Z

As some time has passed since the last report, HEAD was tested again.

Version of libgit2 (release number or SHA1)

8535fdb

Actual Behavior

1/12 Test: offline

  1) Failure:
checkout::conflict::name_mangled_file_exists_in_workdir [/tmp/libgit2/tests/libgit2/checkout/conflict.c:160]
  OID mismatch: &expected != &actual
  "b42712cfe99a1a500b2a51fe984e0b8a7702ba11" != "a3102456e459e506a2e51646d2ffdbe5785fb5ca"

  2) Failure:
status::worktree::whole_repository [/tmp/libgit2/tests/libgit2/status/worktree.c:41]
  counts.expected_entry_count != counts.entry_count
  16 != 21

  3) Failure:
status::worktree::show_index_and_workdir [/tmp/libgit2/tests/libgit2/status/worktree.c:69]
  counts.expected_entry_count != counts.entry_count
  16 != 21

  4) Failure:
status::worktree::show_workdir_only [/tmp/libgit2/tests/libgit2/status/worktree.c:71]
  0 != counts.wrong_sorted_path
  0 != 13

  5) Failure:
status::worktree::swap_subdir_and_file [/tmp/libgit2/tests/libgit2/status/worktree.c:182]
  counts.expected_entry_count != counts.entry_count
  22 != 27

  6) Failure:
status::worktree::swap_subdir_with_recurse_and_pathspec [/tmp/libgit2/tests/libgit2/status/worktree.c:216]
  counts.expected_entry_count != counts.entry_count
  23 != 28

  7) Failure:
status::worktree::filemode_non755 [/tmp/libgit2/tests/libgit2/status/worktree.c:645]
  0 != counts.wrong_status_flags_count
  0 != 1

  8) Failure:
status::worktree::conflict_has_no_oid [/tmp/libgit2/tests/libgit2/status/worktree.c:764]
  16 != git_status_list_entrycount(statuslist)
  16 != 22

  9) Failure:
status::worktree::update_stat_cache_0 [/tmp/libgit2/tests/libgit2/status/worktree.c:1034]
  entry_count0 != max_i
  16 != 21

  10) Failure:
status::worktree::unreadable [/tmp/libgit2/tests/libgit2/status/worktree.c:1118]
  0 != counts.wrong_status_flags_count
  0 != 1

12/12 Testing: util

  1) Failure:
path::validate_current_user_ownership [/tmp/libgit2/tests/util/path.c:764]
  is_cur != (geteuid() == 0)
  1 != 0

boretrk mentioned this issue Nov 17, 2023

util: suppress some uninitialized variable warnings #6659

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boretrk mentioned this issue Dec 11, 2023

ctest -V has two failing tests out of twelve on Cygwin #6667

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1.7.1: self test failures on Cygwin #6655

1.7.1: self test failures on Cygwin #6655

fd00 commented Nov 11, 2023

ethomson commented Nov 11, 2023

boretrk commented Nov 14, 2023

fd00 commented Nov 18, 2023

boretrk commented Dec 14, 2023

fd00 commented Dec 15, 2023

boretrk commented Dec 17, 2023

fd00 commented Dec 25, 2023

fd00 commented Feb 16, 2024

1.7.1: self test failures on Cygwin #6655

1.7.1: self test failures on Cygwin #6655

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fd00 commented Nov 11, 2023

Reproduction steps

Expected behavior

Actual behavior

Version of libgit2 (release number or SHA1)

Operating system(s) tested

ethomson commented Nov 11, 2023

boretrk commented Nov 14, 2023

fd00 commented Nov 18, 2023

boretrk commented Dec 14, 2023

fd00 commented Dec 15, 2023

Version of libgit2 (release number or SHA1)

CI result

Actual Behavior

boretrk commented Dec 17, 2023

fd00 commented Dec 25, 2023

fd00 commented Feb 16, 2024

Version of libgit2 (release number or SHA1)

Actual Behavior