<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [sna gen4 w/a] corrupt rendering (including wrong rendering of characters and flickering on redraw)" href="https://bugs.freedesktop.org/show_bug.cgi?id=55500#c161">Comment # 161</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [sna gen4 w/a] corrupt rendering (including wrong rendering of characters and flickering on redraw)" href="https://bugs.freedesktop.org/show_bug.cgi?id=55500">bug 55500</a> from <a class="email" href="mailto:zdenek.kabelac@gmail.com" title="Zdenek Kabelac <zdenek.kabelac@gmail.com>"> Zdenek Kabelac</a> <pre>(In reply to <a href="show_bug.cgi?id=55500#c160">comment #160</a>) > Typical, it appeared stable through my firefox testing, but if you try > reverting b7565a26401e283df94b68019e8093f8104428f4, I expect the corruptions > to disappear again. Yep - correct revert of this commit make MAX_VERTEX 1 again producing correct rendering - even thought it's again noticable slower - thus now it's clear why I've considered it usable with MAX 1 before (in my <a href="show_bug.cgi?id=55500#c155">comment 155</a>). So yep - revert & MAX 1 works again - but it's quite slow. Is it now any better to deduce which operation is make such bad memory interaction ? It seems like the 'synchronization' is really needed only at very certain moments - where the GPU is producing memory corruption error on the screen - but how to catch in which moment ? I'm still suspecting some memory layout of those memory object - since when I see corruption - it usually it specific places (i.e. edit of this firefox input widget and just only certain characters at certain positions are render with errors) How can I try to increasing memory alignment ? (i.e. each object only at 16KB boundary?)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>