On Tue, Dec 23, 2014 at 10:14:15AM +0000, Zhang, Xiong Y wrote: > > -----Original Message----- > > From: Chris Wilson [mailto:ch...@chris-wilson.co.uk] > > Sent: Tuesday, December 23, 2014 5:53 PM > > To: Zhang, Xiong Y > > Cc: intel-gfx@lists.freedesktop.org > > Subject: Re: [Intel-gfx] [PATCH] igt: Correct the return value for drm > > short_buffer read > > > > On Tue, Dec 23, 2014 at 03:52:11PM +0800, Xiong Zhang wrote: > > > After i915 commit: > > > commit bd008e5b2953186fc0c6633a885ade95e7043800 > > > Author: Chris Wilson <ch...@chris-wilson.co.uk> > > > Date: Tue Oct 7 14:13:51 2014 +0100 > > > > > > drm: Implement O_NONBLOCK support on /dev/dri/cardN > > > > > > the return value for drm short_buffer read is -1 and errno is EAGAIN. > > > > No, it is not. > > -Chris > Without this patch, system fail in short-buffer-block and > short-buffer-nonblock subtest. > With this patch, these two subtest could pass.
That's the point of the test, the kernel behaviour is wrong. There is a patch to fix the kernel. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
