Robuta

https://sourceware.org/legacy-ml/cygwin/2003-04/msg02000.html
illegal instructiongregmathesonfcntldll
https://mail-archive.com/search?l=qemu-devel@nongnu.org&q=subject:%22%5C%5BBug+2133188%5C%5D+Re%5C%3A+Illegal+instruction+in+memset+under+qemu%5C-user+for+riscv64%22&o=newest&f=1
illegal instructionsubjectbugmemsetqemu
https://sourceware.org/legacy-ml/cygwin/2003-04/msg02028.html
illegal instructiongregmathesonfcntldll
https://openwall.com/lists/john-users/2015/10/23/3
illegal instructionjohnuserserror