From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.3) Gecko/20041020 Firefox/0.10.1 Description of problem: Dynamic libraries are initialized with a stack pointer that is not aligned to a 16 bytes boundary. This is unfortunate for those who are using SSE2 instructions. Version-Release number of selected component (if applicable): glibc-2.3.4-2.fc3 How reproducible: Always Steps to Reproduce: 1. untar the attached PR.tar and run make 2. set LD_LIBRARY_PATH=<PR directory> 3. Actual Results: ./main gives "Memory fault" while ./s-main completes with no error. Expected Results: Both executables should run Ok. Additional info: The test case requires SSE2 CPUs, ie Pentium 4 or x86_64 in 32 bits compatibility mode. The problem doesn't occur in x86_64 in 64 bits mode.
Created attachment 110022 [details] Test case using SSE2
Created attachment 110023 [details] Proposed glibc patch
The glibc patch solved the problem for me, but I'm not a glibc expert so there might be better ways to solve the problem.
http://sources.redhat.com/ml/libc-hacker/2005-01/msg00049.html
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2005-096.html