From: Takashi Iwai <tiwai@suse.de>
To: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Takashi Iwai <tiwai@suse.com>, Jaroslav Kysela <perex@perex.cz>,
alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
Xuefeng Li <lixuefeng@loongson.cn>, <stable@vger.kernel.org>
Subject: Re: [PATCH v2] Revert "ALSA: hda: Add support for Loongson 7A1000 controller"
Date: Tue, 25 Aug 2020 12:02:55 +0200 [thread overview]
Message-ID: <s5hsgcb59gw.wl-tiwai@suse.de> (raw)
In-Reply-To: <1598348388-2518-1-git-send-email-yangtiezhu@loongson.cn>
On Tue, 25 Aug 2020 11:39:48 +0200,
Tiezhu Yang wrote:
>
> This reverts commit 61eee4a7fc40 ("ALSA: hda: Add support for Loongson
> 7A1000 controller") to fix the following error on the Loongson LS7A
> platform:
>
> rcu: INFO: rcu_preempt self-detected stall on CPU
> <SNIP>
> NMI backtrace for cpu 0
> CPU: 0 PID: 68 Comm: kworker/0:2 Not tainted 5.8.0+ #3
> Hardware name: , BIOS
> Workqueue: events azx_probe_work [snd_hda_intel]
> <SNIP>
> Call Trace:
> [<ffffffff80211a64>] show_stack+0x9c/0x130
> [<ffffffff8065a740>] dump_stack+0xb0/0xf0
> [<ffffffff80665774>] nmi_cpu_backtrace+0x134/0x140
> [<ffffffff80665910>] nmi_trigger_cpumask_backtrace+0x190/0x200
> [<ffffffff802b1abc>] rcu_dump_cpu_stacks+0x12c/0x190
> [<ffffffff802b08cc>] rcu_sched_clock_irq+0xa2c/0xfc8
> [<ffffffff802b91d4>] update_process_times+0x2c/0xb8
> [<ffffffff802cad80>] tick_sched_timer+0x40/0xb8
> [<ffffffff802ba5f0>] __hrtimer_run_queues+0x118/0x1d0
> [<ffffffff802bab74>] hrtimer_interrupt+0x12c/0x2d8
> [<ffffffff8021547c>] c0_compare_interrupt+0x74/0xa0
> [<ffffffff80296bd0>] __handle_irq_event_percpu+0xa8/0x198
> [<ffffffff80296cf0>] handle_irq_event_percpu+0x30/0x90
> [<ffffffff8029d958>] handle_percpu_irq+0x88/0xb8
> [<ffffffff80296124>] generic_handle_irq+0x44/0x60
> [<ffffffff80b3cfd0>] do_IRQ+0x18/0x28
> [<ffffffff8067ace4>] plat_irq_dispatch+0x64/0x100
> [<ffffffff80209a20>] handle_int+0x140/0x14c
> [<ffffffff802402e8>] irq_exit+0xf8/0x100
>
> Because AZX_DRIVER_GENERIC can not work well for Loongson LS7A HDA
> controller, it needs some workarounds which are not merged into the
> upstream kernel at this time, so it should revert this patch now.
>
> Fixes: 61eee4a7fc40 ("ALSA: hda: Add support for Loongson 7A1000 controller")
> Cc: <stable@vger.kernel.org> # 5.9-rc1+
> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
> ---
>
> v2: update commit message
Applied now. Thanks.
Takashi
next prev parent reply other threads:[~2020-08-25 10:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-25 9:39 Tiezhu Yang
2020-08-25 10:02 ` Takashi Iwai [this message]
2020-09-08 0:37 ` Huacai Chen
2020-09-08 3:09 ` Tiezhu Yang
2020-09-08 11:55 ` Greg KH
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=s5hsgcb59gw.wl-tiwai@suse.de \
--to=tiwai@suse.de \
--cc=alsa-devel@alsa-project.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lixuefeng@loongson.cn \
--cc=perex@perex.cz \
--cc=stable@vger.kernel.org \
--cc=tiwai@suse.com \
--cc=yangtiezhu@loongson.cn \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®