- Prior to this update, the strace utility extracted arguments for the "semtimedop" system call from the wrong location on the IBM System z platforms. As a consequence, arguments for the "semtimedop" system call were incorrectly displayed. This update modifies strace to extract the arguments from the correct memory location so that the arguments for the "semtimedop" system call are displayed as expected.
- Prior to this update, the strace utility used special breakpoints to trace fork/vfork/clone system calls. As a consequence, sometimes strace could cause applications to crash when following fork/vfork/clone system calls. This update modifies strace to use PTRACE_SETOPTIONS to set the behavior at fork/vfork/clone system calls and applications no longer crash.
- Prior to this update, strace incorrectly decoded system calls when tracing a 32-bit process on a 64-bit machine, because strace on IBM System z platforms is not multi-arch aware. This update provides an additional strace executable (strace32) which can be used to trace 32-bit processes on 64-bit machines.