Conemu: Git Bash Not Working After Update

[connerbw]

Versions

ConEmu build: 180206 [64] {Alpha}
OS version: Windows Windows 10 x64
Used shell version (git-bash, cmd, powershell)

Problem description

After ConEmu update over the weekend, I can no longer launch Git Bash.

I can run Git Bash, without ConEmu, just fine.

Steps to reproduce

1. Launch ConEmu
2. Git Bash

Actual results

ConEmuC: Root process was alive less than 10 sec, ExitCode=0.
Press Enter or Esc to close console...

Expected results

Git Bash

Additional files

Setup: https://conemu.github.io/en/SshAgent.html#step-by-step

[pdirksen]

Same here. Running the latest version of git for windows, (Git-2.16.1.4-64-bit).

[Maximus5]

ConEmu64.exe -basic -run {git bash} 

[connerbw]

ConEmu64.exe -basic -run {git bash}

More context please? If i run this command from either a ConEmu CMD prompt, or just a regular CMD after doing a cd into the ConEmu dir, I get a popup terminal with Git Bash starting then it exits with the same error message.

ConEmuC: Root process was alive less than 10 sec, ExitCode=0.
Press Enter or Esc to close console...

[devbeard]

I uninstalled 180206 (alpha) and installed 161206 (downgrade to stable) and Git Bash is now working again for me. Did not touch the Git install.

[Maximus5]

161206 worked without connector, which was implement to fix bunch of msys/cygwin issues.

[Maximus5]

The version 2.16.0.windows.2 of Git is working properly. I consider there was some braking changes in recent updates of Git for Windows.

[biaks]

May be it because you have two different versions of msys-2.0.dll?
For example now I have two different versions:
C:\Program Files\Git\usr\bin\msys-2.0.dll 2.9.0 2017-10-05 15:05
and
C:\Program Files\ConEmu\ConEmu\msys-2.0.dll 2.8.2 2017-07-12 15:35
conemu-msys2-64.exe uses the patched version of msys-2.0.dll from ConEmu folder and then exit with segmentation fault.
My system is:
Windows 7 x64
ConEmu 170807 [64]
Git for Windows v2.15.0 x64

[biaks]

Now I try to understand why this task not work:
set "PATH=%ConEmuDir%..\Git\usr\bin;%PATH%" & "%ConEmuDir%..\Git\git-cmd.exe" --no-cd --command=%ConEmuBaseDirShort%\conemu-msys2-64.exe /usr/bin/bash.exe -l -i -new_console:p
I found:

1)
set "PATH=%ConEmuDir%..\Git\usr\bin;%PATH%" & "%ConEmuDir%..\Git\git-cmd.exe" --no-cd --command=%ConEmuBaseDirShort%\conemu-msys2-64.exe
result:
error launching git: .

2)
set "PATH=%ConEmuDir%..\Git\usr\bin;%PATH%" & "%ConEmuDir%..\Git\git-cmd.exe" --no-cd --command=/usr/bin/bash.exe -l -i
$ ./wsl/256colors2.pl
result:
bash is working, but 256 colors are not displayed

3)
set "PATH=%ConEmuDir%..\Git\usr\bin;%PATH%" & "%ConEmuDir%..\Git\git-cmd.exe" --no-cd --command=/usr/bin/bash.exe -l -i
$ ./conemu-msys2-64.exe /bin/bash.exe
result:
1 [main] conemu-msys2-64 (520) C:\Program Files\ConEmu\ConEmu\conemu-msys2-64.exe: * fatal error - cygheap base mismatch detected - 0x1802F7408/0x1802F4408.
This problem is probably due to using incompatible versions of the cygwin DLL.
Search for cygwin1.dll using the Windows Start->Find/Search facility
and delete all but the most recent version. The most recent version should
reside in x:\cygwin\bin, where 'x' is the drive on which you have
installed the cygwin distribution. Rebooting is also suggested if you
are unable to find another cygwin DLL.
Segmentation fault

4)
copy C:\Program Files\ConEmu\ConEmu\msys-2.0.dll C:\Program Files\Git\usr\bin\msys-2.0.dll
set "PATH=%ConEmuDir%..\Git\usr\bin;%PATH%" & "%ConEmuDir%..\Git\git-cmd.exe" --no-cd --command=/usr/bin/bash.exe -l -i
$ ./conemu-msys2-64.exe /bin/bash.exe
$ ./wsl/256colors2.pl
$ ssh --help
result:
bash is working, 256 colors are displayed perfectly, but ssh from mingw64 utils not working, because try to use msys-2.0.dll with different version.

5)
copy C:\Program Files\ConEmu\ConEmu\msys-2.0.dll C:\Program Files\Git\usr\bin\msys-2.0.dll
set "PATH=%ConEmuDir%..\Git\usr\bin;%PATH%" & "%ConEmuDir%..\Git\git-cmd.exe" --no-cd --command=%ConEmuBaseDirShort%/conemu-msys2-64.exe /bin/bash.exe -l -i
result:
error launching git: .
I still can't understand why this option does not work.

[Maximus5]

ConEmu distro doesn't provide any msys2 dlls. If was your decision to place it there. Remove it.

[Maximus5]

Also, conemu-msys2-64 doesn't use cygwin1.dll! It's msys2 binary and the name depicts that.

[Maximus5]

It's the question for @git-for-windows what happened in latest msys updates which leads to impossibility to run bash in the interactive mode.

[connerbw]

Related?

https://github.com/git-for-windows/git/issues/1473#issuecomment-365056424

[Maximus5]

Definitely. It's a Git-for-Windows problem. For example, if you change your Task by adding -t xterm bash stops exiting on start.

set "PATH=%ProgramFiles%\Git\usr\bin;%PATH%" & "%ProgramFiles%\Git\git-cmd.exe" --no-cd --command=%ConEmuBaseDirShort%\conemu-msys2-64.exe -t xterm /usr/bin/bash.exe -l -i -new_console:p

[ray007]

It's not a git-for-windows problem, it's a problem with MSYS bash.
When I upgrade from latest stable, it stops working in ConEmu.

[Maximus5]

Git-for-windows is a bundle of MSYS, git and things.
It's definitely a problem of git-for-windows, especially because it doesn't work even without ConEmu (git-bash.exe fails too).
JFI, the bug is already fixed in latest git-for-windows.

[ExplicitlyImplicit]

Fixed by downgrading ConEmu to previous version 190217. Not sure I have the same problem though (Nothing happens when I start a Git Bash console in ConEmu, stopped working after latest update of ConEmu).

[okainov]

Issue is still here with the latest Git for Windows (2.22.0) and latest ConEmu (190623).

Git bash works by itself perfectly. Adding -t xterm does not help