----- Forwarded message from Eric <eric.4.deb...@grabatoulnz.fr> -----
Hi,
new bisect done !
On 24/09/2024 21:05, Salvatore Bonaccorso wrote:
> Hi,
>
> On Tue, Sep 24, 2024 at 08:17:34PM +0200, Eric wrote:
> > > On 22/09/2024 21:22, Eric wrote:
> > > The bisect is complete and yields this result
> > >
> > > 15115033f056cbd7649b8e1806287f71bdb7ce5c is the first bad commit
> > > commit 15115033f056cbd7649b8e1806287f71bdb7ce5c
> > > Author: Maciej Fijalkowski <maciej.fijalkow...@intel.com>
> > > Date: Fri Jul 26 20:17:10 2024 +0200
> > >
> > > ice: don't busy wait for Rx queue disable in ice_qp_dis()
> > >
> > >
> > > I posted too early ... looking back I found that nonsensical. Turns out
> > > on that last commit I had made a mistake. I suspect I booted on the wrong
> > > kernel that time.
> > > I'll redo the last few rounds and post only after checking that the
> > > "first bad commit" indeed is bad.
> > > Sorry for the noise
> No problem, and thanks for the update. Yes I was confused once I saw
> your mail and did not saw a relation of this to your HDMI sound issue.
Now, that one make a lot more sense (even though I wouldn't know how to handle
this, it is clearly related) :
92afcc310038ebe5d66c689bb0bf418f5451201c is the first bad commit
commit 92afcc310038ebe5d66c689bb0bf418f5451201c
Author: Takashi Iwai <ti...@suse.de>
Date: Wed Jul 31 19:05:15 2024 +0200
ALSA: hda: Conditionally use snooping for AMD HDMI
[ Upstream commit 478689b5990deb626a0b3f1ebf165979914d6be4 ]
The recent regression report revealed that the use of WC pages for AMD
HDMI device together with AMD IOMMU leads to unexpected truncation or
noises. The issue seems triggered by the change in the kernel core
memory allocation that enables IOMMU driver to use always S/G
buffers. Meanwhile, the use of WC pages has been a workaround for the
similar issue with standard pages in the past. So, now we need to
apply the workaround conditionally, namely, only when IOMMU isn't in
place.
This patch modifies the workaround code to check the DMA ops at first
and apply the snoop-off only when needed.
Fixes: f5ff79fddf0e ("dma-mapping: remove CONFIG_DMA_REMAP")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219087
Link: https://patch.msgid.link/20240731170521.31714-1-ti...@suse.de
Signed-off-by: Takashi Iwai <ti...@suse.de>
Signed-off-by: Sasha Levin <sas...@kernel.org>
sound/pci/hda/hda_controller.h | 2 +-
sound/pci/hda/hda_intel.c | 10 +++++++++-
2 files changed, 10 insertions(+), 2 deletions(-)
Regards
Eric
