From: Takashi Iwai <tiwai@suse.de>
To: Arun Raghavan <arunr@valvesoftware.com>
Cc: Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
<linux-sound@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Arun Raghavan <arun@arunraghavan.net>
Subject: Re: [PATCH] ALSA: hda/core: Log stream DMA errors on interrupt
Date: Tue, 04 Aug 2026 13:21:14 +0200 [thread overview]
Message-ID: <87tspai11y.wl-tiwai@suse.de> (raw)
In-Reply-To: <20260803-master-v1-1-9bcedb736978@valvesoftware.com>
On Tue, 04 Aug 2026 00:07:52 +0200,
Arun Raghavan wrote:
>
> The stream descriptor status register reports FIFO and descriptor
> errors, but these are currently cleared silently along with the rest
> of the interrupt status. Log them, rate-limited, so DMA problems are
> visible instead of only manifesting as audible glitches.
>
> Observed on some AMD GPU HDMI audio controllers under specific low power
> circumstances.
>
> Signed-off-by: Arun Raghavan <arunr@valvesoftware.com>
> Cc: Arun Raghavan <arun@arunraghavan.net>
Applied now to for-next branch.
It's interesting at which situation you get the error bit and which
one. If it can be used *reliably* for catching a streaming error, the
driver could notify XRUN or error appropriately, too.
thanks,
Takashi
prev parent reply other threads:[~2026-08-04 11:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-03 22:07 [PATCH] ALSA: hda/core: Log stream DMA errors on interrupt Arun Raghavan
2026-08-04 11:21 ` Takashi Iwai [this message]
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