<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [BDW GT3]System hangs while running glxgear with SNA" href="https://bugs.freedesktop.org/show_bug.cgi?id=77263#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [BDW GT3]System hangs while running glxgear with SNA" href="https://bugs.freedesktop.org/show_bug.cgi?id=77263">bug 77263</a> from <a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> Chris Wilson</a> <pre>One thing to try is commit b12bc035fb8ee40bb382e66604e869b729270189 Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> Date: Tue Apr 22 12:30:29 2014 +0100 sna: Add a DBG aide to disable hardware execution Submit a dummy batch so that we still build, submit batches and perform relocations, but do not actually invoke the GPU. This can be useful when looking at mysterious hardware hangs. References: <a class="bz_bug_link bz_status_NEW " title="NEW --- - [BDW GT3]System hangs while running glxgear with SNA" href="show_bug.cgi?id=77263">https://bugs.freedesktop.org/show_bug.cgi?id=77263</a> Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> and diff --git a/src/sna/kgem.c b/src/sna/kgem.c index 82199a1..68b0917 100644 --- a/src/sna/kgem.c +++ b/src/sna/kgem.c @@ -61,7 +61,7 @@ static struct kgem_bo * search_snoop_cache(struct kgem *kgem, unsigned int num_pages, unsigned flags); #define DBG_NO_HW 0 -#define DBG_NO_EXEC 0 +#define DBG_NO_EXEC 1 #define DBG_NO_TILING 0 #define DBG_NO_CACHE 0 #define DBG_NO_CACHE_LEVEL 0 That will isolate the fault in either the driver or the hardware.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>