search for: armsoc

On Sat, Apr 7, 2018 at 3:02 AM, syzbot <syzbot+65a84dde0214b0387ccd at syzkaller.appspotmail.com> wrote: > syzbot hit the following crash on upstream commit > 38c23685b273cfb4ccf31a199feccce3bdcb5d83 (Fri Apr 6 04:29:35 2018 +0000) > Merge tag 'armsoc-drivers' of > git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc > syzbot dashboard link: > https://syzkaller.appspot.com/bug?extid=65a84dde0214b0387ccd To prevent duplicated work: I am working on this one. Stefan > > So far this crash happened 4 times on upstream. >...

On Sat, Apr 7, 2018 at 3:02 AM, syzbot <syzbot+65a84dde0214b0387ccd at syzkaller.appspotmail.com> wrote: > syzbot hit the following crash on upstream commit > 38c23685b273cfb4ccf31a199feccce3bdcb5d83 (Fri Apr 6 04:29:35 2018 +0000) > Merge tag 'armsoc-drivers' of > git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc > syzbot dashboard link: > https://syzkaller.appspot.com/bug?extid=65a84dde0214b0387ccd To prevent duplicated work: I am working on this one. Stefan > > So far this crash happened 4 times on upstream. >...

...at, Apr 7, 2018 at 3:02 AM, syzbot > > <syzbot+65a84dde0214b0387ccd at syzkaller.appspotmail.com> wrote: > > > syzbot hit the following crash on upstream commit > > > 38c23685b273cfb4ccf31a199feccce3bdcb5d83 (Fri Apr 6 04:29:35 2018 +0000) > > > Merge tag 'armsoc-drivers' of > > > git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc > > > syzbot dashboard link: > > > https://syzkaller.appspot.com/bug?extid=65a84dde0214b0387ccd > > > > To prevent duplicated work: I am working on this one. > > > >...

...czi wrote: > On Sat, Apr 7, 2018 at 3:02 AM, syzbot > <syzbot+65a84dde0214b0387ccd at syzkaller.appspotmail.com> wrote: > > syzbot hit the following crash on upstream commit > > 38c23685b273cfb4ccf31a199feccce3bdcb5d83 (Fri Apr 6 04:29:35 2018 +0000) > > Merge tag 'armsoc-drivers' of > > git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc > > syzbot dashboard link: > > https://syzkaller.appspot.com/bug?extid=65a84dde0214b0387ccd > > To prevent duplicated work: I am working on this one. > > Stefan Do you want to try this pat...

...nality. The Pi3 with neon is just struggling with the AEC routines as its audibly better on a Pi4 but its not the garble that a Pi0 produces. Without the neon on the Pi3 the 1.2 – 1.85 perf boost of neon with FFT is lost and it really effects AEC effectiveness. There are quite a number of low cost ArmSocs now all approx. Pi3 level and above that really benefit from neon support with FFT. Arm have specific Libs for this https://projectne10.github.io/Ne10/doc/modules.html But since Version 3.3.1 FFTW http://www.fftw.org/ is supported Neon. Probably the biggest applicable use of speexdsp is going t...

...a serious rabbit hole between nouveau and rpm. It looks like nouveau tries to use rpm as the outermost lock, surrounding every other drm lock there is. That doesn't really work, and means you'll keep fighting drm core locking forever. All other rpm supporting drivers (i915, and the pile of armsoc ones) push their rpm_get/put dance way down into the low-level callbacks. That then allows you to fix all the trouble with probing, i2x, dp_aux and stuff abitrarily nesting (since rpm itself is refcounted). But I'm not really sure why nouveau is different here. -Daniel > > [ 246.66962...

...ween > nouveau and rpm. It looks like nouveau tries to use rpm as the outermost > lock, surrounding every other drm lock there is. That doesn't really work, > and means you'll keep fighting drm core locking forever. > > All other rpm supporting drivers (i915, and the pile of armsoc ones) push > their rpm_get/put dance way down into the low-level callbacks. That then > allows you to fix all the trouble with probing, i2x, dp_aux and stuff > abitrarily nesting (since rpm itself is refcounted). > > But I'm not really sure why nouveau is different here. A quick...

This is the next version of https://patchwork.freedesktop.org/series/46815/ With a lot more thought put into it so as to avoid the potential deadlock scenarios I missed. This also required fixing some bogus DRM helper usage. Try and deadlock me now, nouveau. I dare you!!! Lyude Paul (8): drm/nouveau: Fix bogus drm_kms_helper_poll_enable() placement drm/nouveau: Enable polling even if we