<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [Wayland] queue-test test failed on ppc64" href="https://bugs.freedesktop.org/show_bug.cgi?id=59001#c11">Comment # 11</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [Wayland] queue-test test failed on ppc64" href="https://bugs.freedesktop.org/show_bug.cgi?id=59001">bug 59001</a> from <a class="email" href="mailto:bugzilla@tecnocode.co.uk" title="Philip Withnall <bugzilla@tecnocode.co.uk>"> Philip Withnall</a> <pre>Most likely this: <a href="http://lists.freedesktop.org/archives/wayland-devel/2013-February/007275.html">http://lists.freedesktop.org/archives/wayland-devel/2013-February/007275.html</a>. Copied for posterity: Around line 740 of connection.c, demarshalling an object: id = (uint32_t **) extra; extra += sizeof *id; closure->args[i] = id; *id = p; On 64-bit MIPS, the assignment to *id gets turned into a store-double-word instruction (since pointer 'p' is 64 bits wide), which must be to a 8-byte-aligned address. It's possible for 'extra' to not be 8-byte aligned, and hence for the store to not be aligned. In the particular case I'm hitting, 'extra' is not 8-byte-aligned because the message size is 12, but it also looks like alignment could be changed in other ways; e.g. during handling a 'h'-type argument near the bottom of the function, where 'extra' is incremented by the size of an int.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>