[Bug 235257] snd_uaudio not getting loaded automatically after migration to devmatch

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235257

--- Comment #28 from Max <maxsteciuk at gmail.com> ---
Hi

devd seems to be the only process getting to sys/kern/subr_bus.c:devread() and
it is pretty active there.

>>>grep devread  /var/log/messages |grep -oe 'PID [0-9]*, comm [a-zA-Z0-9]*'|sort |uniq
>>>PID 86168, comm devd

Here is chronological sequence of my debug checkpoints:
>>>Feb  2 12:01:07  kernel: ugen0.6: <Dell DELL PROFESSIONAL SOUND BAR AE515> at usbus0
>>>...
>>>Feb  2 12:01:07  kernel: +++ 2 devctl_queue_data_f() data [? at bus=0 hubaddr=3 port=2 devaddr=6 interface=3 ugen=ugen0.6 vendor=0x413c product=0xa506 devclass=0x00 devsubclass=0x00 devproto=0x00 sernum="" release=0xe001 mode=host intclass=0x03 intsubclass=0x00 intprotocol=0x00 on uhub2
>>>...
>>>Feb  2 12:01:08  kernel: +++ 1 devread(): si_name devctl PID 86168, comm devd
>>>Feb  2 12:01:08  kernel: +++ 2 devread(): PID 86168, comm devd
>>>Feb  2 12:01:08  kernel: +++ 1 devread(): si_name devctl PID 86168, comm devd
>>>Feb  2 12:01:08  kernel: +++ 2 devread(): PID 86168, comm devd
>>>...
>>>...
>>>...
>>>Feb  2 12:01:09  kernel: +++ 1 devread(): si_name devctl PID 86168, comm devd
>>>Feb  2 12:01:09  kernel: +++ 2 devread(): PID 86168, comm devd
>>>Feb  2 12:01:09  kernel: +++ 1 devctl_queue_data_f() data [!system=IFNET subsystem=em0 type=LINK_UP
>>>Feb  2 12:01:09  kernel: ] flags 1, devctl_queue_length 1000
>>>Feb  2 12:01:09  kernel: +++ 2 devctl_queue_data_f() data [!system=IFNET subsystem=em0 type=LINK_UP
>>>Feb  2 12:01:09  kernel: ] flags 1, devctl_queue_length 1000, devsoftc.queued 382
>>>Feb  2 12:01:09  kernel: em0: link state changed to UP


Thanks,
Max

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