Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Sat, 13 Jun 2020 12:25:22 -0400
From:   "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Subject: Re: next-0519 on thinkpad x60: sound related? window manager crash
To:     Takashi Iwai <tiwai@suse.de>
Cc:     alsa-devel@alsa-project.org, bp@alien8.de, hch@infradead.org,
        Christoph Hellwig <hch@lst.de>, hpa@zytor.com,
        linux-kernel@vger.kernel.org, mingo@redhat.com,
        Pavel Machek <pavel@ucw.cz>, perex@perex.cz,
        rientjes@google.com, tglx@linutronix.de, tiwai@suse.com,
        x86@kernel.org
References: <20200520111136.GA3802@amd>
        <1591545088.74ii116nf2.none@localhost> <20200608061950.GA17476@lst.de>
        <1591624340.z01ejtod28.none@localhost> <20200609114733.GA1621@lst.de>
        <s5hr1uogtna.wl-tiwai@suse.de> <s5h8sgtede5.wl-tiwai@suse.de>
In-Reply-To: <s5h8sgtede5.wl-tiwai@suse.de>
MIME-Version: 1.0
Message-Id: <1592065395.r5zwoblr15.none@localhost>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Content-Length: 735
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Excerpts from Takashi Iwai's message of June 11, 2020 1:11 pm:
> Thanks, so something still missing in the mmap handling, I guess.
>=20
> I've worked on two different branches for potential fixes of your
> problems.  Could you test topic/dma-fix and topic/dma-fix2 branches?
>   git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
> Just pull one of them onto Linus' git HEAD.
>=20
> I guess we'll go with David's new patch, but still it's interesting
> whether my changes do anything good actually.
>=20
>=20
> Takashi
>=20

On torvalds 623f6dc593, topic/dma-fix causes sound to be output as=20
alternating half-second bursts of noise and a few seconds of silence.=20
topic/dma-fix2 appears to work properly.

Thanks,
Alex.