<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [SKL bisected] texsubimage pbo intermittent failures" href="https://bugs.freedesktop.org/show_bug.cgi?id=91926#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [SKL bisected] texsubimage pbo intermittent failures" href="https://bugs.freedesktop.org/show_bug.cgi?id=91926">bug 91926</a> from <a class="email" href="mailto:topi.pohjolainen@intel.com" title="Topi Pohjolainen <topi.pohjolainen@intel.com>"> Topi Pohjolainen</a> <pre>I was able to narrow down the combination of _mesa_update_state() and brw_emit_mi_flush(). I got it simplified to a call _mesa_update_texture() followed by part of the logic in brw_context.c:intel_update_state() - namely calling brw_render_cache_set_check_flush() at least once. That call in turn is simple check for existence of the underlying buffer object of the texture and then a call to brw_emit_mi_flush(). So, after more simplification, I found out that if I'm calling brw_emit_mi_flush() _twice_ after the call for _mesa_meta_pbo_TexSubImage() in intelTexSubImage() I'm not able to reproduce the error. Recall that calling brw_emit_mi_flush() isn't enough. This is turn means that I'm mostly likely in square one - I'm simple changing the dynamics enough to hide the real bug.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>