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Home/ Questions/Amazing solutions for the couldn't reserve space for cygwin's heap, win32 error 0 error
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Hailey O'Ryan
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Hailey O'Ryan
Asked: May 18, 20222022-05-18T21:28:40+00:00 2022-05-18T21:28:40+00:00In: git

Amazing solutions for the couldn’t reserve space for cygwin’s heap, win32 error 0 error

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Hi everyone, I’m learning about git. While working, I try pull some repositories using Git extensions. As a result, I get the message:

C:\Program Files\Git\bin\git.exe pull --progress "origin" 
 Done
  0 [main] us 0 init_cheap: VirtualAlloc pointer is null, Win32 error 487
 AllocationBase 0x0, BaseAddress 0x68560000, RegionSize 0x390000, State 0x10000
 C:\Program Files\Git\bin\sh.exe: *** Couldn't reserve space for cygwin's heap, Win32 error 0

What can I do about the “couldn’t reserve space for cygwin’s heap, win32 error 0” issue? Is there a better approach?

couldn't reserve space for cygwin's heap
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    hdtutoria Expert
    2022-06-25T06:55:45+00:00Added an answer on June 25, 2022 at 6:55 am

    The cause: This error occurs perhaps because the persistent shared memory regions that Cygwin employs are occasionally prone to corruption. Some Cygwin programs start to malfunction as a result, while other apps continue to function normally. Since these shared memory chunks are persistent, a system restart is frequently required to remove them before the issue can be fixed.

    Solution: To fix this error, you should go to the directory where git is installed, for example:

    C:\Program Files (x86)\Git\bin

    You ought should be able to launch a command prompt as administrator from the folder by right-clicking it while holding shift.

    Then run:

    rebase.exe -b 0x50000000 msys-1.0.dll
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  2. Raphaël Renaud
    2022-05-25T21:18:59+00:00Added an answer on May 25, 2022 at 9:18 pm

    The same problem was mine. I found solution here http://jakob.engbloms.se/archives/1403

    c:\msysgit\bin>rebase.exe -b 0x50000000 msys-1.0.dll

    My solution was slightly different. It was.

    C:\Program Files (x86)\Git\bin>rebase.exe -b 0x50000000 msys-1.0.dll

    Before you rebase DLLs, make sure that it isn’t in use.

    tasklist /m msys-1.0.dll

    is a backup:

    copy msys-1.0.dll msys-1.0.dll.bak

    If the rebase command fails, try this:

    ReBaseImage (msys-1.0.dll) failed with last error = 6

    These steps will be required:

    1. Copy the dll into another directory
    2. Use the commands to rebase the copy
    3. Replace the original dll file with the copied.

    For any issues, use the Administrator commands

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