<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [KMS][Cayman] Garbled screen and oops with 6950 with linus git from 20121006 (3.7-rc0)" href="https://bugs.freedesktop.org/show_bug.cgi?id=55692#c26">Comment # 26</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [KMS][Cayman] Garbled screen and oops with 6950 with linus git from 20121006 (3.7-rc0)" href="https://bugs.freedesktop.org/show_bug.cgi?id=55692">bug 55692</a> from <a class="email" href="mailto:alexandre.f.demers@gmail.com" title="Alexandre Demers <alexandre.f.demers@gmail.com>"> Alexandre Demers</a> <pre>(In reply to <a href="show_bug.cgi?id=55692#c23">comment #23</a>) > Created <a href="attachment.cgi?id=68623" name="attach_68623" title="Test patch.">attachment 68623</a> <a href="attachment.cgi?id=68623&action=edit" title="Test patch.">[details]</a> <a href='page.cgi?id=splinter.html&bug=55692&attachment=68623'>[review]</a> [review] > Test patch. > > VM is definitely enabled, otherwise you won't got that error in the first > place. > > Ok let's try to narrow down that bug a bit more, please apply the attached > test patch and see what happens. > > If the GPU hang vanished we indeed have a syncing issue, but not the PFP > sync. It is and it is not. What I mean is concerning <a href="show_bug.cgi?id=55692#c17">comment 17</a> "So i did a git log --graph --oneline --all and started to git checkout between those two commits, starting from 2d2f1fd to de92b7a are bad and with commit "ef557ea winsys/radeon: disable virtual memory on Cayman" it started working." If the variable "RADEON_VA" is not set or doesn't exist, from the point commit "ef557ea" kicks in, VM gets disabled. Before that commit, VM is always enabled; from that point, we must be careful. If we want to test after commit "ef557ea" with VM enabled, "RADEON_VA" MUST be set, otherwise it will be disable and will hide the bug.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>