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Desktop barfs with cygheap base mismatch detected

See original GitHub issue

Description

During clone of a repo desktop barfs, complaining

      1 [main] sh (21312) C:\Users\bdorrans\AppData\Local\GitHubDesktop\app-1.0.4\resources\app\git\usr\bin\sh.exe: *** fatal error - cygheap base mismatch detected - 0x2FA7408/0x2D97408.
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.

There is no cygwin1.dll anywhere on any disk that I can find.

Git standalone, version 2.14.2.windows.3, 32bit is installed. It is higher in the path, however uninstalling it and rebooting made no difference.

Version

GitHub Desktop version: [1.04]

OS version: Microsoft Windows [Version 10.0.16299.19]

Steps to Reproduce

Start GitHub desktop
Click clone a repository
Choose repository
Click Clone
Watch the spinnies
Get the error screen
Cry

Expected behavior: Clone to work

Actual behavior: Clone barfs

Reproduces how often: Every time

Logs

2017-10-18.desktop.production.log

Additional Information

Running the bundled shell C:\Users\bdorrans\AppData\Local\GitHubDesktop\app-1.0.4\resources\app\git\usr\bin\sh.exe and then trying git gives the same error.

Issue Analytics

State:
Created 6 years ago
Comments:42 (19 by maintainers)

Top GitHub Comments

9reactions

blowdartcommented, Oct 25, 2017

Oh god, this will make @shiftkey happy. It was me. Kind of.

So Fall Edition added some protections that came from EMET, and it has one to force ASLR onto binaries that don’t have it. Which is a good idea, because ASLR is a nice exploit protection. So I turn that on. And guess what started working when I turned it off again …

snip_20171025101340

Force randomization is the setting in question.

7reactions

sylveoncommented, Oct 25, 2017

I found a “fix”. Add an exclusion for each program that crashes with that message until it works as desired. Example for git add -p with perl excluded: with sh and perl excluded:

Just add more until it works 😄

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