Hello, On commit 8005c49d9aea74d382f474ce11afbbc7d7130bec (Nov 15). The program is: // autogenerated by syzkaller (http://github.com/google/syzkaller) #define _GNU_SOURCE #include <unistd.h> #include <sys/syscall.h> #include <sys/eventfd.h> #include <sys/sendfile.h> #include <fcntl.h> #define SYS_memfd_create 319 int main() { int r1 = eventfd(0, 0); int r2 = syscall(SYS_memfd_create, "", 0); unsigned long n = 1<<30; fallocate(r2, 0, 0, n); sendfile(r1, r2, 0, n); return 0; } It can be executed under non-privileged user and creates an unkillable process. It probably will terminate eventually, but it can take days/weeks. Note that "mm: make sendfile(2) killable" 296291cdd1629c308114504b850dc343eabc2782 is merged, so it is something different. Though, probably similar. Thank you. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
