kern/49148: usmsc0: warning: Failed to write register 0x14 on Raspberry Pi

[riz%NetBSD.org@localhost]

>Number:         49148
>Category:       kern
>Synopsis:       usmsc0: warning: Failed to write register 0x14 on Raspberry Pi
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Aug 24 23:30:00 +0000 2014
>Originator:     Jeff Rizzo
>Release:        NetBSD 7.99.1 (RPI.201408231230Z) #0: Sat Aug 23 13:49:19 UTC 
>2014         
>builds%b47.netbsd.org@localhost:/home/builds/ab/HEAD/evbarm-earmv6hf/201408231230Z-obj/home/source/ab/HEAD/src/sys/arch/evbarm/compile/RPI
>Organization:
>Environment:
NetBSD 7.99.1 (RPI.201408231230Z) #0: Sat Aug 23 13:49:19 UTC 2014
        
builds%b47.netbsd.org@localhost:/home/builds/ab/HEAD/evbarm-earmv6hf/201408231230Z-obj/home/source/ab/HEAD/src/sys/arch/evbarm/compile/RPI
>Description:
When doing a fair amount of NFS traffic, usmsc0 keeps locking up:

usmsc0: warning: Failed to write register 0x14
usmsc0: warning: Failed to read register 0x14
usmsc0: warning: timed-out waiting for reset to complete
usmsc0: error: smsc_chip_init failed (err=15)
ukphy0: detached
usmsc0: detached
usmsc0: at uhub1 port 1 (addr 3) disconnected
uhub1: detached
uhub1: at uhub0 port 1 (addr 2) disconnected

I was having trouble getting into DDB, but that's not a problem any more.  It's 
locked up 5 or 6 times today.

Here's the boot messages if it's helpful:


NetBSD/evbarm (rpi) booting ...
[ Kernel symbol table missing! ]
Loaded initial symtab at 0xc0491ecc, strtab at 0xc04d86fc, # entries 17129
pmap_postinit: Allocated 35 static L1 descriptor tables
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 7.99.1 (RPI.201408231230Z) #0: Sat Aug 23 13:49:19 UTC 2014
        
builds%b47.netbsd.org@localhost:/home/builds/ab/HEAD/evbarm-earmv6hf/201408231230Z-obj/home/source/ab/HEAD/src/sys/arch/evbarm/compile/RPI
total memory = 192 MB
avail memory = 183 MB
sysctl_createv: sysctl_create(machine_arch) returned 17
kern.module.path=/stand/evbarm/7.99.1/modules
mainbus0 (root)
cpu0 at mainbus0 core 0: 700 MHz ARM1176JZ-S r0p7 (ARM11J V6ZK core)
cpu0: DC enabled IC enabled WB enabled LABT
cpu0: 16KB/32B 4-way L1 VIPT Instruction cache
cpu0: 16KB/32B 4-way write-back-locking-C L1 VIPT Data cache
vfp0 at cpu0: VFP11, rounding, exceptions
obio0 at mainbus0
bcmicu0 at obio0
bcmmbox0 at obio0: VC mailbox
vcmbox0 at bcmmbox0
bcmtmr0 at obio0 intr 3: VC System Timer
vchiq0 at obio0 intr 66: BCM2835 VCHIQ
bcmpm0 at obio0: Power management, Reset and Watchdog controller
bcmrng0 at obio0: RNG
plcom0 at obio0 intr 57
plcom0: txfifo disabled
plcom0: console
genfb0 at obio0no data for est. mode 640x480x67

wsdisplay0 at genfb0 kbdmux 1
sdhc0 at obio0 intr 62: SDHC controller
sdhc0: interrupting on intr 62
sdhc0: SD Host Specification 3.0, rev.153
sdmmc0 at sdhc0 slot 0
dwctwo0 at obio0 intr 9: USB controller
bcmspi0 at obio0 intr 54: SPI
spi0 at bcmspi0: SPI bus
bsciic0 at obio0 intr 53: BSC0
iic0 at bsciic0: I2C bus
bsciic1 at obio0 intr 53: BSC1
iic1 at bsciic1: I2C bus
bcmgpio0 at obio0: GPIO [0...31]
gpio0 at bcmgpio0: 32 pins
bcmgpio1 at obio0: GPIO [32...53]
gpio1 at bcmgpio1: 22 pins
usb0 at dwctwo0: USB revision 2.0
WARNING: module error: vfs load failed for `usbverbose', error 45
uhub0 at usb0WARNING: module error: vfs load failed for `usbverbose', error 45
: vendor 0x0000 DWC2 root hub, class 9/0, rev 2.00/1.00, addr 1
ld0 at sdmmc0: <0x03:0x5344:SU08G:0x80:0xb14f1de0:0x0bc>
ld0: 7580 MB, 3850 cyl, 64 head, 63 sec, 512 bytes/sect x 15523840 sectors
ld0: 4-bit width, bus clock 50.000 MHz
WARNING: module error: vfs load failed for `usbverbose', error 45
WARNING: module error: vfs load failed for `usbverbose', error 45
uhub1 at uhub0 port 1WARNING: module error: vfs load failed for `usbverbose', 
error 45
WARNING: module error: vfs load failed for `usbverbose', error 45
: vendor 0x0424 product 0x9512, class 9/0, rev 2.00/2.00, addr 2
uhub1: multiple transaction translators
WARNING: module error: vfs load failed for `usbverbose', error 45
WARNING: module error: vfs load failed for `usbverbose', error 45
usmsc0 at uhub1 port 1
WARNING: module error: vfs load failed for `usbverbose', error 45
WARNING: module error: vfs load failed for `usbverbose', error 45
usmsc0: vendor 0x0424 product 0xec00, rev 2.00/2.00, addr 3
usmsc0:  Ethernet address b8:27:eb:48:2c:d7
ukphy0 at usmsc0 phy 1WARNING: module error: vfs load failed for `miiverbose', 
error 45
: OUI 0x00800f, model 0x000c, rev. 3
ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
boot device: ld0
root on ld0a dumps on ld0b
mountroot: trying nfs...
mountroot: trying msdos...
mountroot: trying ext2fs...
mountroot: trying ffs...
root file system type: ffs
vchiq: local ver 6 (min 3), remote ver 6.
vcaudio0 at vchiq0: AUDS
WARNING: no TOD clock present
WARNING: using filesystem time
WARNING: CHECK AND RESET THE DATE!
audio0 at vcaudio0: half duplex, playback, capture, independent
init: copying out path `/sbin/init' 11
Sun Aug 24 12:24:44 PDT 2014
>How-To-Repeat:
Boot latest kernel on raspberry pi, build perl over NFS.
>Fix: