NetBSD Problem Report #57551

From www@netbsd.org  Sun Jul 30 07:38:35 2023
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Message-Id: <20230730073832.E98281A923A@mollari.NetBSD.org>
Date: Sun, 30 Jul 2023 07:38:32 +0000 (UTC)
From: chris@groessler.org
Reply-To: chris@groessler.org
To: gnats-bugs@NetBSD.org
Subject: panic on evbarm on 10.0_BETA
X-Send-Pr-Version: www-1.0

>Number:         57551
>Category:       port-evbarm
>Synopsis:       panic on evbarm on 10.0_BETA
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-evbarm-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jul 30 07:40:01 +0000 2023
>Last-Modified:  Wed Aug 02 10:10:01 +0000 2023
>Originator:     Christian Groessler
>Release:        10.0_BETA from around Jul-18-2023
>Organization:
>Environment:
NetBSD raspi3c 10.0_BETA NetBSD 10.0_BETA (CPGENERIC) #0: Wed Jul 19 22:47:30 CEST 2023  chris@raspi3c:/net/socke/tmp/netbsd/raspi3c/obj-10/net/socke/tmp/netbsd/raspi3c/src-10/sys/arch/evbarm/compile/CPGENERIC evbarm
>Description:
During night the system sometimes crashes and reboots. I guess during the daily or weekly scripts.


/var/log/messages shows:

Jul 29 23:00:00 raspi3c syslogd[698]: restart
Jul 30 02:28:08 raspi3c syslogd[698]: restart
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] panic: kernel diagnostic assertion "offset < dma->udma_block->size" failed: file "/net/s
ocke/tmp/netbsd/raspi3c/src-10/sys/dev/usb/usb_mem.c", line 389 offset 12288 vs 12288
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] cpu0: Begin traceback...
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1c5c: netbsd:db_panic+0x14
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1c7c: netbsd:vpanic+0x114
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1c94: netbsd:kern_assert+0x40
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1cd4: netbsd:usb_dmaaddr+0x128
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1d1c: netbsd:dwc2_assign_and_init_hc+0x2b8
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1d54: netbsd:dwc2_hcd_select_transactions+0x164
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1d74: netbsd:dwc2_release_channel+0x190
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1dcc: netbsd:dwc2_handle_hcd_intr+0xcec
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1df4: netbsd:dwc2_intr+0xe8
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1e0c: netbsd:bcm2835_icu_intr+0x28
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1e5c: netbsd:pic_dispatch+0x54
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1ee4: netbsd:pic_do_pending_ints+0x434
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1f4c: netbsd:irq_entry+0x94
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1fac: netbsd:idle_loop+0x1b8
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] cpu0: End traceback...
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] Mutex error: mutex_vector_enter,516: assertion failed: !cpu_intr_p()
Jul 30 02:28:08 raspi3c /netbsd: 
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] lock address : 917c407c
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] current cpu  :                  0
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] current lwp  : 0x00000000914ac040
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] owner field  : 000000000000000000 wait/spin:                0/0
Jul 30 02:28:08 raspi3c /netbsd: 
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] Skipping crash dump on recursive panic
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] panic: lock error: Mutex: mutex_vector_enter,516: assertion failed: !cpu_intr_p(): lock 
0x917c407c cpu 0 lwp 0x914ac040
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] cpu0: Begin traceback...
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb195c: netbsd:db_panic+0x14
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb197c: netbsd:vpanic+0x114
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1994: netbsd:panic+0x24
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1a5c: netbsd:lockdebug_abort+0xe8
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1a74: netbsd:mutex_abort+0x30
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1adc: netbsd:mutex_enter+0x48c
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1b14: netbsd:dk_open+0x3c
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1b44: netbsd:ldopen+0x78
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1b74: netbsd:dk_size+0x64
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1bb4: netbsd:bdev_size+0xac
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1bc4: netbsd:cpu_dumpconf+0x28
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1c14: netbsd:dodumpsys+0x1fc
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1c44: netbsd:dumpsys+0x18
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1c5c: netbsd:kern_reboot+0x80
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1c7c: netbsd:vpanic+0x120
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1c94: netbsd:kern_assert+0x40
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1cd4: netbsd:usb_dmaaddr+0x128
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1d1c: netbsd:dwc2_assign_and_init_hc+0x2b8
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1d54: netbsd:dwc2_hcd_select_transactions+0x164
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1d74: netbsd:dwc2_release_channel+0x190
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1dcc: netbsd:dwc2_handle_hcd_intr+0xcec
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1df4: netbsd:dwc2_intr+0xe8
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1e0c: netbsd:bcm2835_icu_intr+0x28
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1e5c: netbsd:pic_dispatch+0x54
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1ee4: netbsd:pic_do_pending_ints+0x434
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1f4c: netbsd:irq_entry+0x94
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] 0x80cb1fac: netbsd:idle_loop+0x1b8
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] cpu0: End traceback...
Jul 30 02:28:08 raspi3c /netbsd: [ 57094.3025208] rebooting...
Jul 30 02:28:08 raspi3c /netbsd: [   1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
Jul 30 02:28:08 raspi3c /netbsd: [   1.0000000]     2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
Jul 30 02:28:08 raspi3c /netbsd: [   1.0000000]     2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Jul 30 02:28:08 raspi3c /netbsd: [   1.0000000]     The NetBSD Foundation, Inc.  All rights reserved.


My changed config file CPGENERIC just adds "options INSECURE":

raspi3c# diff GENERIC CPGENERIC 
40a41
> options       INSECURE
raspi3c# 

>How-To-Repeat:

>Fix:

>Audit-Trail:
From: Christian Groessler <chris@groessler.org>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-evbarm/57551
Date: Tue, 1 Aug 2023 19:00:40 +0200

 System is a Raspberri Pi 3+

 dmesg:

 [     1.000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 
 2003,
 [     1.000000]     2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 
 2012, 2013,
 [     1.000000]     2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 
 2022, 2023
 [     1.000000]     The NetBSD Foundation, Inc.  All rights reserved.
 [     1.000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
 [     1.000000]     The Regents of the University of California.  All 
 rights reserved.

 [     1.000000] NetBSD 10.0_BETA (CPGENERIC) #0: Wed Jul 19 22:47:30 
 CEST 2023
 [     1.000000] 
 chris@raspi3c:/net/socke/tmp/netbsd/raspi3c/obj-10/net/socke/tmp/netbsd/raspi3c/src-10/sys/arch/evbarm/compile/CPGENERIC
 [     1.000000] total memory = 948 MB
 [     1.000000] avail memory = 912 MB
 [     1.000000] timecounter: Timecounters tick every 10.000 msec
 [     1.000000] Kernelized RAIDframe activated
 [     1.000000] armfdt0 (root)
 [     1.000000] simplebus0 at armfdt0: Raspberry Pi 3 Model B Plus Rev 1.3
 [     1.000000] simplebus1 at simplebus0
 [     1.000000] simplebus2 at simplebus0
 [     1.000000] cpus0 at simplebus0
 [     1.000000] simplebus3 at simplebus0
 [     1.000000] cpu0 at cpus0: 600 MHz Cortex-A53 r0p4 (Cortex V8A core)
 [     1.000000] cpu0: DC enabled IC enabled WB enabled EABT branch 
 prediction enabled
 [     1.000000] cpu0: L1 32KB/64B 2-way (256 set) VIPT Instruction cache
 [     1.000000] cpu0: L1 32KB/64B 4-way (128 set) write-back-locking-C 
 PIPT Data cache
 [     1.000000] cpu0: L2 512KB/64B 16-way (512 set) write-through PIPT 
 Unified cache
 [     1.000000] vfp0 at cpu0: NEON MPE (VFP 3.0+), rounding, NaN 
 propagation, denormals
 [     1.000000] cpu1 at cpus0: 600 MHz Cortex-A53 r0p4 (Cortex V8A core)
 [     1.000000] cpu1: DC enabled IC enabled WB enabled EABT branch 
 prediction enabled
 [     1.000000] cpu1: L1 32KB/64B 2-way (256 set) VIPT Instruction cache
 [     1.000000] cpu1: L1 32KB/64B 4-way (128 set) write-back-locking-C 
 PIPT Data cache
 [     1.000000] cpu1: L2 512KB/64B 16-way (512 set) write-through PIPT 
 Unified cache
 [     1.000000] vfp1 at cpu1: NEON MPE (VFP 3.0+), rounding, NaN 
 propagation, denormals
 [     1.000000] cpu2 at cpus0: 600 MHz Cortex-A53 r0p4 (Cortex V8A core)
 [     1.000000] cpu2: DC enabled IC enabled WB enabled EABT branch 
 prediction enabled
 [     1.000000] cpu2: L1 32KB/64B 2-way (256 set) VIPT Instruction cache
 [     1.000000] cpu2: L1 32KB/64B 4-way (128 set) write-back-locking-C 
 PIPT Data cache
 [     1.000000] cpu2: L2 512KB/64B 16-way (512 set) write-through PIPT 
 Unified cache
 [     1.000000] vfp2 at cpu2: NEON MPE (VFP 3.0+), rounding, NaN 
 propagation, denormals
 [     1.000000] cpu3 at cpus0: 600 MHz Cortex-A53 r0p4 (Cortex V8A core)
 [     1.000000] cpu3: DC enabled IC enabled WB enabled EABT branch 
 prediction enabled
 [     1.000000] cpu3: L1 32KB/64B 2-way (256 set) VIPT Instruction cache
 [     1.000000] cpu3: L1 32KB/64B 4-way (128 set) write-back-locking-C 
 PIPT Data cache
 [     1.000000] cpu3: L2 512KB/64B 16-way (512 set) write-through PIPT 
 Unified cache
 [     1.000000] vfp3 at cpu3: NEON MPE (VFP 3.0+), rounding, NaN 
 propagation, denormals
 [     1.000000] bcmicu0 at simplebus1
 [     1.000000] fclock0 at simplebus2: 19200000 Hz fixed clock (osc)
 [     1.000000] bcmcprman0 at simplebus1: BCM283x Clock Controller
 [     1.000000] syscon0 at simplebus1autoconfiguration error: : couldn't 
 get registers
 [     1.000000] bcmaux0 at simplebus1
 [     1.000000] fclock1 at simplebus2: 480000000 Hz fixed clock (otg)
 [     1.000000] bcmicu1 at simplebus1: Multiprocessor
 [     1.000000] gtmr0 at simplebus0: Generic Timer
 [     1.000000] gtmr0: interrupting on local_intc irq 3
 [     1.000000] armgtmr0 at gtmr0: Generic Timer (19200 kHz, virtual)
 [     1.000000] timecounter: Timecounter "armgtmr0" frequency 19200000 
 Hz quality 500
 [     1.000004] plcom0 at simplebus1: ARM PL011 UART
 [     1.000004] plcom0: txfifo disabled
 [     1.000004] plcom0: interrupting on icu irq 57
 [     1.000004] com0 at simplebus1: BCM AUX UART, 1-byte FIFO
 [     1.000004] com0: console
 [     1.000004] com0: interrupting on icu irq 29
 [     1.000004] usbnopphy0 at simplebus0: USB PHY
 [     1.000004] /soc/thermal@7e212000 at simplebus1 not configured
 [     1.000004] bcmgpio0 at simplebus1: GPIO controller 2835
 [     1.000004] bcmgpio0: pins 0..31 interrupting on icu irq 49
 [     1.000004] bcmgpio0: pins 32..54 interrupting on icu irq 50
 [     1.000004] gpio0 at bcmgpio0: 54 pins
 [     1.000004] bcmdmac0 at simplebus1: DMA0 DMA2 DMA4 DMA5 DMA8 DMA9 
 DMA10 DMA11
 [     1.000004] /soc/power at simplebus1 not configured
 [     1.000004] mmcpwrseq0 at simplebus0autoconfiguration error: : 
 couldn't get reset GPIOs
 [     1.000004] bsciic0 at simplebus1: Broadcom Serial Controller
 [     1.000004] bsciic0: interrupting on icu irq 53
 [     1.000004] iic0 at bsciic0: I2C bus
 [     1.000004] bcmmbox0 at simplebus1: VC mailbox
 [     1.000004] bcmmbox0: interrupting on icu irq 65
 [     1.000004] vcmbox0 at bcmmbox0
 [     1.000004] /soc/timer@7e003000 at simplebus1 not configured
 [     1.000004] /soc/txp@7e004000 at simplebus1 not configured
 [     1.000004] bcmsdhost0 at simplebus1: SD HOST controller
 [     1.000004] bcmsdhost0: interrupting on icu irq 56
 [     1.000004] bsciic1 at simplebus1: Broadcom Serial Controller
 [     1.000004] bsciic1: interrupting on icu irq 53
 [     1.000004] iic1 at bsciic1: I2C bus
 [     1.000004] /soc/pwm@7e20c000 at simplebus1 not configured
 [     1.000004] sdhc0 at simplebus1: SDHC controller
 [     1.000004] sdhc0: interrupting on icu irq 62
 [     1.000004] bsciic2 at simplebus1: Broadcom Serial Controller
 [     1.000004] bsciic2: interrupting on icu irq 53
 [     1.000004] iic2 at bsciic2: I2C bus
 [     1.000004] dwctwo0 at simplebus1: USB controller
 [     1.000004] dwctwo0: interrupting on icu irq 9
 [     1.000004] bcmpmwdog0 at simplebus1: Power management, Reset and 
 Watchdog controller
 [     1.000004] /soc/vec@7e806000 at simplebus1 not configured
 [     1.000004] /soc/hdmi@7e902000 at simplebus1 not configured
 [     1.000004] /soc/gpu at simplebus1 not configured
 [     1.000004] genfb0 at simplebus1: switching to framebuffer console
 [     1.000004] genfb0: framebuffer at 0xfe876000, size 1280x720, depth 
 32, stride 5120
 [     1.000004] wsdisplay0 at genfb0 kbdmux 1: console (default, vt100 
 emulation)
 [     1.000004] wsmux1: connecting to wsdisplay0
 [     1.000004] wsdisplay0: screen 1-3 added (default, vt100 emulation)
 [     1.000004] vchiq0 at simplebus1: BCM2835 VCHIQ
 [     1.000004] armpmu0 at simplebus0: Performance Monitor Unit
 [     1.000004] gpioleds0 at simplebus0: ACT
 [     1.000004] bcmrng0 at simplebus1: RNG
 [     1.000004] entropy: ready
 [     1.000004] timecounter: Timecounter "clockinterrupt" frequency 100 
 Hz quality 0
 [     1.374715] sdmmc0 at bcmsdhost0
 [     1.384717] sdhc0: SDHC 3.0, rev 153, caps <01610000/00000000>, 
 platform DMA, 200000 kHz, HS 3.3V, re-tuning mode 1, 1024 byte blocks
 [     1.414720] sdmmc1 at sdhc0 slot 0
 [     1.424721] dwctwo0: Core Release: 2.80a (snpsid=4f54280a)
 [     1.424721] usb0 at dwctwo0: USB revision 2.0
 [     1.454724] armpmu0: interrupting on local_intc irq 9
 [     1.464729] uhub0 at usb0: NetBSD (0x0000) DWC2 root hub (0x0000), 
 class 9/0, rev 2.00/1.00, addr 1
 [     1.464729] uhub0: 1 port with 1 removable, self powered
 [     1.474729] IPsec: Initialized Security Association Processing.
 [     1.534737] sdmmc0: direct I/O error 5, r=6 p=0xbad77f14 write
 [     1.584746] sdmmc0: SD card status: 4-bit, C10
 [     1.594745] ld0 at sdmmc0: <0x03:0x5344:SL16G:0x80:0x62301d56:0x112>
 [     1.594745] ld0: 15193 MB, 7717 cyl, 64 head, 63 sec, 512 bytes/sect 
 x 31116288 sectors
 [     1.624752] ld0: 4-bit width, High-Speed/SDR25, 50.000 MHz
 [     1.674758] sdmmc1: 4-bit width, 50.000 MHz
 [     1.684758] sdmmc1: SDIO function
 [     1.684758] bwfm0 at sdmmc1 function 1
 [     1.704762] (manufacturer 0x2d0, product 0xa9a6) at sdmmc1 function 
 2 not configured
 [     1.714762] (manufacturer 0x2d0, product 0xa9a6, standard function 
 interface code 0x2) at sdmmc1 function 3 not configured
 [     2.094803] uhub1 at uhub0 port 1: vendor 0424 (0x0424) product 2514 
 (0x2514), class 9/0, rev 2.00/b.b3, addr 2
 [     2.104806] uhub1: multiple transaction translators
 [     2.104806] uhub1: 4 ports with 3 removable, self powered
 [     2.934890] uhub2 at uhub1 port 1: vendor 0424 (0x0424) product 2514 
 (0x2514), class 9/0, rev 2.00/b.b3, addr 3
 [     2.944893] uhub2: multiple transaction translators
 [     2.944893] uhub2: 3 ports with 2 removable, self powered
 [     3.824985] uhidev0 at uhub1 port 2 configuration 1 interface 0
 [     3.824985] uhidev0: Logitech (0x046d) USB Keyboard (0xc31c), rev 
 1.10/64.00, addr 4, iclass 3/1
 [     3.874990] ukbd0 at uhidev0
 [     3.874990] wskbd0 at ukbd0: console keyboard, using wsdisplay0
 [     3.874990] uhidev1 at uhub1 port 2 configuration 1 interface 1
 [     3.884993] uhidev1: Logitech (0x046d) USB Keyboard (0xc31c), rev 
 1.10/64.00, addr 4, iclass 3/0
 [     3.995004] uhidev1: 3 report ids
 [     3.995004] uhid0 at uhidev1 reportid 1: input=1, output=0, feature=0
 [     4.005005] uhid1 at uhidev1 reportid 2: input=1, output=0, feature=0
 [     4.005005] uhid2 at uhidev1 reportid 3: input=3, output=0, feature=0
 [     4.015006] uhub0: autoconfiguration error: illegal enable change, 
 port 1
 [     4.505059] mue0 at uhub2 port 1
 [     4.505059] mue0: vendor 0424 (0x0424) product 7800 (0x7800), rev 
 2.10/3.00, addr 5
 [     4.805091] mue0: LAN7800 id 0x7800 rev 0x2
 [     4.815093] ukphy0 at mue0 phy 1: OUI 0x00800f, model 0x0013, rev. 2
 [     4.835097] ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 
 1000baseT, 1000baseT-FDX, auto
 [     4.845098] mue0: Ethernet address b8:27:eb:f7:b5:fd
 [     4.845098] swwdog0: software watchdog initialized
 [     4.875101] WARNING: 3 errors while detecting hardware; check system 
 log.
 [     4.875101] boot device: ld0
 [     4.885102] root on ld0a dumps on ld0b
 [     4.895102] root file system type: ffs
 [     4.895102] kern.module.path=/stand/evbarm/10.0/modules
 [     4.905104] WARNING: no TOD clock present
 [     4.905104] WARNING: using filesystem time
 [     4.916032] WARNING: CHECK AND RESET THE DATE!
 [     4.916032] vchiq0: interrupting on icu irq 66
 [     4.925106] vchiq: vchiq_init_state: slot_zero = 0xbb1e0000, 
 is_master = 0
 [     4.925106] vchiq: local ver 8 (min 3), remote ver 8.
 [     4.925106] vcaudio0 at vchiq0: auds
 [     4.925106] bwfm0: Firmware file default:    brcmfmac43455-sdio.bin
 [     4.925106] bwfm0: Firmware file model-spec: 
 brcmfmac43455-sdio.raspberrypi,3-model-b-plus.bin
 [     4.935114] audio0 at vcaudio0: playback
 [     4.935114] audio0: slinear_le:16 -> slinear_le:16 2ch 48000Hz, blk 
 7680 bytes (40ms) for playback
 [     4.955111] spkr0 at audio0: PC Speaker (synthesized)
 [     4.955111] wsbell at spkr0 not configured
 [     4.975113] bwfm0: Found Firmware file: brcmfmac43455-sdio.bin
 [     5.015117] bwfm0: NVRAM file default:    brcmfmac43455-sdio.txt
 [     5.015117] bwfm0: NVRAM file model-spec: 
 brcmfmac43455-sdio.raspberrypi,3-model-b-plus.txt
 [     5.015117] bwfm0: Found NVRAM file: 
 brcmfmac43455-sdio.raspberrypi,3-model-b-plus.txt
 [     5.015117] bwfm0: CLM file default:    brcmfmac43455-sdio.clm_blob
 [     5.015117] bwfm0: CLM file model-spec: 
 brcmfmac43455-sdio.raspberrypi,3-model-b-plus.clm_blob
 [     6.825346] bwfm0: CHIPACTIVE
 [     6.925359] bwfm0: address b8:27:eb:a2:e0:a8
 [     6.925359] bwfm0: wl0: Mar  1 2015 07:29:38 version 7.45.18 
 (r538002) FWID 01-6a2c8ad4
 [    91.156615] wsdisplay0: screen 4 added (default, vt100 emulation)

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