On Wed, Mar 25, 2015 at 3:34 PM, Takashi Iwai <ti...@suse.de> wrote: > At Wed, 25 Mar 2015 14:26:50 +0100, > Daniel Vetter wrote: >> >> On Tue, Mar 24, 2015 at 07:09:03PM +0100, Sedat Dilek wrote: >> > On Mon, Mar 23, 2015 at 9:25 AM, Daniel Vetter <dan...@ffwll.ch> wrote: >> > > On Mon, Mar 23, 2015 at 07:25:27AM +0100, Sedat Dilek wrote: >> > >> Hi, >> > >> >> > >> I did my weekly update of the Linux RC (here: v4.0-rc5) and fell over >> > >> some warning in the drm area. >> > >> >> > >> Please have a look... >> > > >> > >> > Hi Daniel, >> > >> > > Just to confirm: Both are new in -rc5 and haven't been around in -rc4? >> > > >> > >> > Yeah, rc4 was OK but with rc5 I have seen these warnings. >> > >> > > Also can you pls give -nightly a spin and see what happens there? >> > > >> > >> > drm-intel-nightly (2015y-03m-24d-09h-19m-43s UTC) pulled on top of rc5 >> > does not show any warnings in the drm | i915 area. >> >> drm-fixes has 2 cherry-picks from -next to address the worst offenders, >> there's one more which is waiting for confirmation: >> >> commit fb9981aa675eb7b398849915364916fd98833cfa >> Author: Damien Lespiau <damien.lesp...@intel.com> >> Date: Thu Feb 5 19:24:25 2015 +0000 >> >> drm/i915: Fix atomic state when reusing the firmware fb >> >> Please apply that commit from -next on top of drm-fixes and retest. > > The problem is introduced by the commit > 319c1d420a0b62d9dbb88104afebaabc968cdbfa > drm/i915: Ensure plane->state->fb stays in sync with plane->fb > > Obviously it accesses the uninitialized kref in > get_initial_plane_config(). > > The commit in next > f55548b5af87ebfc586ca75748947f1c1b1a4a52 > drm/i915: Don't try to reference the fb in get_initial_plane_config() > > fixes the bug itself, but it leads to another similar warnings. For > avoiding this, yet another cherry-picks (including the commit you > mentioned above): > > fb9981aa675eb7b398849915364916fd98833cfa > drm/i915: Fix atomic state when reusing the firmware fb > 2d14030b1a9d0e89cfdca6f16851e2eac8cb4de0 > drm/i915: Store the initial framebuffer in initial_plane_config > > then warnings are finally gone. > > But, the second one can't be applied cleanly, so I had to adjust many > codes manually by replacing primary fb references. > > > Takashi
Hi Takashi, hi Daniel, first of all thank you for your replies. The last days I did not use my notebook and will try "drm-intel-fixes-2015-03-26". Takashi, is that Git branch on top of rc5 OK for you? Regards, - Sedat - -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
