I get Vim: Caught deadly signal SEGV when saving an edited file.

[mrt181]

I am using cygwin vim and whenever I save a file through

:x

I get this error

Vim: Caught deadly signal SEGV
      0 [main] vim 5056 E:\cygwin64\bin\vim.exe: *** fatal error in forked process - fork: can't reserve memory for parent stack 0x20B0000 - 0x22B0000, (child has 0x30000 - 0x230000), Win32 error 487
 632 [main] vim 5056 cygwin_exception::open_stackdumpfile: Dumping stack trace to vim.exe.stackdump
      0 [WnetEnumResource] vim 3504 fork: child -1 - forked process 5056 died unexpectedly, retry 0, exit code 0x100, errno 11

Cannot fork

Vim: Finished.

$ cat vim.exe.stackdump
Stack trace:
Frame        Function    Args
00000000000  0018006F53E (001801EBF1C, 001801EBDC6, 00000030000, 0000022EDE0)
00000000000  00180046EC2 (0000022FE48, 000003B38C0, 00000000000, 00000002000)
00000000000  00180046F02 (000020B0000, 000022B0000, 00000030000, 00000230000)
00000000000  001800470F2 (00000000000, 0000022FEE0, 00000000000, 00000000000)
00000000000  0018004714A (00100401000, 00000000000, 00000000000, 00000000000)
00000000000  001800471FE (00000000000, 00000000000, 00000000000, 00000000000)
00000000000  00100596791 (00000000000, 00000000000, 00000000000, 00000000000)
00000000000  00100401010 (00000000000, 00000000000, 00000000000, 00000000000)
00000000000  000773E59ED (00000000000, 00000000000, 00000000000, 00000000000)
00000000000  0007751C541 (00000000000, 00000000000, 00000000000, 00000000000)
End of stack trace

When I save through

:w

I get the same error but my cygwin console becomes unresponsive and I can only close it.

Both errors only happen with *.hs files.