+++ This bug was initially created as a clone of Bug #512650 +++ Description of problem: [PATCH] Don't use '-fwrapv' compiler option: it's buggy in gcc-4.1.x This causes kernel images that don't run init to completion with certain broken gcc versions. This fixes kernel bugzilla entry: http://bugzilla.kernel.org/show_bug.cgi?id=13012 I suspect the gcc problem is this: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28230 Fix the problem by using the -fno-strict-overflow flag instead, which not only does not exist in the known-to-be-broken versions of gcc (it was introduced later than fwrapv), but seems to be much less disturbing to gcc too: the difference in the generated code by -fno-strict-overflow are smaller (compared to using neither flag) than when using -fwrapv. Upstream commit: http://git.kernel.org/linus/a137802ee839ace40079bebde24cfb416f73208a --- Additional comment from eteo on 2009-07-20 03:49:08 EDT --- Related to bug 491264.