Created attachment 119177 [details] Conservative fix for the problem I started out by fixing STACK_BOUNDARY, such that the compiler would emit code to preserve the correct stack alignment, but also assume such alignment. I decided this wasn't such a good idea, for binary compatibility, and instead modified the compiler such that it would preserve the additional alignment, but not rely on it. This will hopefully be enough to fix the problem, but I haven't been able to actually verify that the problem is fixed, other than by inspecting the generated assembly code and verifying that the generated code for the testcase is the same in both my original fix and the one I present here.
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-2006-0147.html