From: Jakub Kicinski <kuba@kernel.org>
To: Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org, linux-usb@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
regressions@lists.linux.dev
Subject: USB sound card freezes USB after resume from suspend
Date: Tue, 25 Apr 2023 11:19:24 -0700 [thread overview]
Message-ID: <20230425111924.05cf8b13@kernel.org> (raw)
Hi!
For a few weeks now I can't use any USB devices if I suspend my laptop
with my USB sound card active and resuming it without it connected.
USB worker threads seems to be sitting in:
[<0>] snd_pcm_dev_disconnect+0x1e8/0x280 [snd_pcm]
[<0>] snd_device_disconnect_all+0x42/0x80 [snd]
[<0>] snd_card_disconnect+0x128/0x290 [snd]
[<0>] usb_audio_disconnect+0x11a/0x2c0 [snd_usb_audio]
[<0>] usb_unbind_interface+0x8c/0x270
[<0>] device_release_driver_internal+0x1b2/0x230
[<0>] bus_remove_device+0xd8/0x150
[<0>] device_del+0x18b/0x410
[<0>] usb_disable_device+0xc6/0x1e0
[<0>] usb_disconnect+0xda/0x2c0
[<0>] usb_disconnect+0xbf/0x2c0
[<0>] usb_disconnect+0xbf/0x2c0
[<0>] usb_disconnect+0xbf/0x2c0
[<0>] hub_event+0xf01/0x1cd0
[<0>] process_one_work+0x1c4/0x3d0
[<0>] worker_thread+0x4d/0x380
[<0>] kthread+0xe6/0x110
[<0>] ret_from_fork+0x29/0x50
Which is:
snd_pcm_dev_disconnect (/usr/src/debug/kernel-6.2.12/linux-6.2.12-300.fc38.x86_64/sound/core/pcm.c:818 /usr/src/debug/kernel-6.2.12/linux-6.2.12-300.fc38.x86_64/sound/core/pcm.c:812 /usr/src/debug/kernel-6.2.12/linux-6.2.12-300.fc38.x86_64/sound/core/pcm.c:1129) snd_pcm
It happens on Fedora 37 and Fedora 38, it seems to have coincided with
the 6.2 kernel but I'm not 100% sure.
The USB devices come back after half an hour or so, silently.
There's nothing of note in dmesg.
next reply other threads:[~2023-04-25 18:20 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-25 18:19 Jakub Kicinski [this message]
2023-04-26 5:24 ` USB sound card freezes USB after resume from suspend Takashi Iwai
2023-04-26 5:24 ` Takashi Iwai
2023-04-26 5:46 ` Geraldo Nascimento
2023-04-26 6:02 ` Takashi Iwai
2023-04-26 6:05 ` Geraldo Nascimento
2023-04-26 8:01 ` Jaroslav Kysela
2023-04-26 8:14 ` Takashi Iwai
2023-04-26 11:04 ` Jaroslav Kysela
2023-04-26 13:59 ` Jakub Kicinski
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