linux-kernel - azx_probe() called twice

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Date:   Wed, 25 Apr 2018 13:48:27 +0200
From:   Paul Menzel <pmenzel+alsa-devel@...gen.mpg.de>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: azx_probe() called twice

Dear Linux folks,


With the attached debug patch, `azx_probe()` seems to have been called 
twice on the ASRock E350M1. Is that expected? It also differs, that it’s 
only called once during some boots, and twice during others.

[    0.000000] Linux version 4.17.0-rc2+ (root@...89178f57d) (gcc 
version 7.3.0 (Debian 7.3.0-15)) #12 SMP Mon Apr 23 06:57:55 UTC 2018
[…]
[    2.746962] calling  azx_driver_init+0x0/0xfe4 [snd_hda_intel] @ 214
[    2.777881] random: get_random_u32 called from 
arch_rnd.part.2+0x18/0x40 with crng_init=1
[    2.777900] random: get_random_u32 called from 
load_elf_binary+0x76a/0x1d20 with crng_init=1
[    2.777907] random: get_random_u32 called from 
arch_align_stack+0x45/0x70 with crng_init=1
[    2.777938] random: get_random_u32 called from 
arch_rnd.part.2+0x18/0x40 with crng_init=1
[    2.778822] random: get_random_u32 called from 
arch_align_stack+0x45/0x70 with crng_init=1
[    2.778846] random: get_random_u32 called from 
randomize_page+0x42/0x57 with crng_init=1
[    2.781026] calling  shpcd_init+0x0/0x1000 [shpchp] @ 219
[    2.781154] random: get_random_u32 called from 
cache_alloc_refill+0x5bb/0x13d0 with crng_init=1
[    2.781477] calling  k10temp_driver_init+0x0/0x1000 [k10temp] @ 215
[    2.796426] usb usb3: New USB device found, idVendor=1d6b, 
idProduct=0001, bcdDevice= 4.17
[    2.796434] usb usb3: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[    2.796438] usb usb3: Product: OHCI PCI host controller
[    2.796441] usb usb3: Manufacturer: Linux 4.17.0-rc2+ ohci_hcd
[    2.796445] usb usb3: SerialNumber: 0000:00:12.0
[    2.796922] hub 3-0:1.0: USB hub found
[    2.796968] hub 3-0:1.0: 5 ports detected
[    2.798039] ohci-pci 0000:00:13.0: OHCI PCI host controller
[    2.798056] ohci-pci 0000:00:13.0: new USB bus registered, assigned 
bus number 4
[    2.798123] ohci-pci 0000:00:13.0: irq 18, io mem 0xf0149000
[    2.804555] random: get_random_u32 called from 
cache_random_seq_create+0xa3/0x1f0 with crng_init=1
[    2.804604] random: get_random_u32 called from 
copy_process.part.33+0x186/0x2100 with crng_init=1
[    2.804625] random: get_random_u32 called from 
cache_random_seq_create+0xa3/0x1f0 with crng_init=1
[    2.804669] random: get_random_u32 called from 
cache_alloc_refill+0x5bb/0x13d0 with crng_init=1
[    2.860446] usb usb4: New USB device found, idVendor=1d6b, 
idProduct=0001, bcdDevice= 4.17
[    2.860455] usb usb4: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[    2.860459] usb usb4: Product: OHCI PCI host controller
[    2.860463] usb usb4: Manufacturer: Linux 4.17.0-rc2+ ohci_hcd
[    2.860466] usb usb4: SerialNumber: 0000:00:13.0
[    2.860899] hub 4-0:1.0: USB hub found
[    2.860941] hub 4-0:1.0: 5 ports detected
[    2.861606] 1
[    2.861632] 2
[    2.861991] 3
[    2.861992] 4
[    2.861993] 5
[    2.861995] 6
[    2.861996] 7
[    2.862004] 8
[    2.862005] 9
[    2.862290] 1
[    2.862307] 2
[    2.862642] 3
[    2.862643] 4
[    2.862645] 5
[    2.862646] 6
[    2.862647] 7
[    2.862654] 8
[    2.862655] 9
[    2.862934] initcall azx_driver_init+0x0/0xfe4 [snd_hda_intel] 
returned 0 after 79525 usecs

Please find the full log attached.


Kind regards,

Paul

View attachment "0001-ALSA-Add-debug-statements.patch" of type "text/x-patch" (2084 bytes)

View attachment "20180424–linux_4.17-rc2–dmesg.txt" of type "text/plain" (284324 bytes)

Download attachment "smime.p7s" of type "application/pkcs7-signature" (5174 bytes)