<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - llvmpipe crashes using kms_swrast_dri.so" href="https://bugs.freedesktop.org/show_bug.cgi?id=108581#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - llvmpipe crashes using kms_swrast_dri.so" href="https://bugs.freedesktop.org/show_bug.cgi?id=108581">bug 108581</a> from <a class="email" href="mailto:sroland@vmware.com" title="Roland Scheidegger <sroland@vmware.com>"> Roland Scheidegger</a> <pre>Looks like the buffer disappeared when it still had pending rendering commands to it (in this case, a clear command). I think this happens because these (kms) surfaces aren't allocated within llvmpipe itself, so there's no refcounting there and if those externally allocated surfaces are freed (externally) subsequent access will result in segfaults (valgrind possibly could shed some more light on it, if it still triggers with that). I'm not quite sure though where the root cause actually is, I think "something" needs to make sure that before the surfaces are destroyed that the renderer is really done with it.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>