IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
In azx_probe_codecs function, when bus->codec_mask is becomes to 0(no codecs),
execute azx_init_chip, bus->codec_mask will be initialized to a value again,
this causes snd_hda_codec_new function to run, the process is as follows:
-->snd_hda_codec_new
-->snd_hda_codec_device_init
-->snd_hdac_device_init---snd_hdac_read_parm(...AC_PAR_VENDOR_ID) 2s
---snd_hdac_read_parm(...AC_PAR_VENDOR_ID) 2s
---snd_hdac_read_parm(...AC_PAR_SUBSYSTEM_ID) 2s
---snd_hdac_read_parm(...AC_PAR_REV_ID) 2s
---snd_hdac_read_parm(...AC_PAR_NODE_COUNT) 2s
when no codecs, read communication is error, each command will be polled for
2 second, a total of 10s, it is easy to some problem.
like this:
2 [ 14.833404][ 6] [ T164] hda 0006:00: Codec #0 probe error; disabling it...
3 [ 14.844178][ 6] [ T164] hda 0006:00: codec_mask = 0x1
4 [ 14.880532][ 6] [ T164] hda 0006:00: too slow response, last cmd=0x0f0000
5 [ 15.891988][ 6] [ T164] hda 0006:00: too slow response, last cmd=0x0f0000
6 [ 16.978090][ 6] [ T164] hda 0006:00: too slow response, last cmd=0x0f0001
7 [ 18.140895][ 6] [ T164] hda 0006:00: too slow response, last cmd=0x0f0002
8 [ 19.135516][ 6] [ T164] hda 0006:00: too slow response, last cmd=0x0f0004
10 [ 19.900086][ 6] [ T164] hda 0006:00: no codecs initialized
11 [ 45.573398][ 2] [ C2] watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [kworker/2:0:25]
Here, when bus->codec_mask is 0, use a direct break to avoid execute snd_hda_codec_new function.
Signed-off-by: songxiebing <songxiebing@kylinos.cn>
Link: https://lore.kernel.org/r/20240301011841.7247-1-soxiebing@163.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
642b02b45d