<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [sna suse] ddx assertion hits" href="https://bugs.freedesktop.org/show_bug.cgi?id=70461#c140">Comment # 140</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [sna suse] ddx assertion hits" href="https://bugs.freedesktop.org/show_bug.cgi?id=70461">bug 70461</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>Ok, I think I got it: commit b6f204b62bbf2d0918761bb7773d2f80fff985fd Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> Date: Tue Mar 15 21:24:20 2016 +0000 sna/dri2: Prevent starting a swap chain for a decoupled Pixmap When a Window is resized, a new Pixmap is attached to the Window and the DRI2 buffers invalidated. However, the client may have requested a swap before it is notified of the resize and so we have to discard the stale swap. In doing so, we do not want to start a swap chain as it references the wrong frontbuffer and causes dire confusion when we start swapping for real. Reported-by: Jiri Slaby <<a href="mailto:jirislaby@gmail.com">jirislaby@gmail.com</a>> Bugzilla: <a class="bz_bug_link bz_status_REOPENED " title="REOPENED - [sna suse] ddx assertion hits" href="show_bug.cgi?id=70461#c131">https://bugs.freedesktop.org/show_bug.cgi?id=70461#c131</a> Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> plus a silly assert(chain->front = info->front) royally breaking things instead of being the warning it was meant to be, which snuck into commit d1672806a5222f00dcc2eb24ccddd03f727f71bc Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> Date: Wed Feb 24 10:33:22 2016 +0000 sna/dri2: Add active-scanout tracking to single CRTC flips My task for today is to capture this resize race in tests/dri2-race.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>