Example:
Command Prompt 1
C:> scp file1 user@host.com
...
Command Prompt 2
C:> scp file2 user@host.com
C:\Program Files (x86)\OpenSSH\bin\scp.exe (4672): couldn't allocate cygwin heap, Win32 error 0, base 0x600000, top 0x603000, reserve_size 12288, allocsize
12288, page_const 4096
C:\Program Files (x86)\OpenSSH\bin\scp.exe (4672): couldn't allocate cygwin heap, Win32 error 0, base 0x600000, top 0x603000, reserve_size 12288, allocsize
12288, page_const 4096
4 [main] scp 3744 sync_with_child: child 4672(0x1BC) died before initialization with status code 0x1
7884 [main] scp 3744 sync_with_child: *** child state waiting for longjmp
fork: Resource temporarily unavailable
Anonymous
I get similar messages when using ssh/scp for only a single connection.