I have the same problem just below:
Info: Creating test_hello.objdump
nios2-elf-objdump --disassemble --syms --all-header --source test_hello.elf >test_hello.objdump
2 [main] ? (13844)
C:\altera\11.1sp1\quartus\bin\cygwin\bin\sh.exe: *** fatal error - couldn't allocate heap, Win32 error 487, base 0x810000, top 0x820000, reserve_size 61440, allocsize 65536, page_const 4096
1 [main] sh 13576 fork: child -1 - died waiting for longjmp before initialization, retry 0, exit code 0x100, errno 11
/usr/bin/sh: fork: Resource temporarily unavailable
make: *** [test_hello.objdump] Error 128
and I have my classroom next wednesday and would like this working
Best Regards
Richard