> > But looking at the code a better way should be: > > 1. Create new bo, wrap it in a kms fb. > > 2. Slap busy load onto that bo, e.g. reapeatedly fill it with the blitter. > > 3. Enable evil interruptor (igt_fork_signal_helper). > > 4. Submit pageflip > > > > -> Boom since the set_cache_level will block, get interrupted and exit > > early with -EINTR. > > > > Given sufficient overkill in 2. this should be 100% reliable to reproduce. As soon as I execbuffer to the bo, it gets a vma for the GGTT vm: vm = ctx->vm; if (!USES_FULL_PPGTT(dev)) vm = &dev_priv->gtt.base; ... /* Look up object handles */ ret = eb_lookup_vmas(eb, exec, args, vm, file); if (ret) goto err; And then it becomes impossible to reproduce the problem :( Is there any other trick to make set_cache_level fail? -- Oscar _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
