Volumio 1.55 - System halts spontaneously

Volumio Development Bug reports
1

I am still troubleshooting this issue, but I thought people would like to know about a potential issue.

I have been running Volume 1.5 on a Raspberry Pi B+ and Hifiberry Digi+ with no real issues. The web page is slow but useable. The raspberry pi is powered of a USB 2.0 powered hub that provides 2A of current.

I upgraded yesterday to version 1.55 and replaced the B+ with a model 2. No issues initially. The speed increase is welcome. What I noticed is that the system will halt when idle. Unfortunately I haven’y been able to trap any of the error message. That is today’s job.

Has anyone else seen a similar problem?

cheers,

rob…

2

More info on the problem. I setup a ssh connection and let the following command run:

volumio@volumio:~$ sudo cat /proc/kmsg

When I got back from lunch, the following output was on the screen. (see attached file). It appears from first glance that the system is rebooting. However, the uptime command does not appear to reset the uptime parameter. The system shows that it has been up since 10pm last night.

volumio@volumio:~$ uptime
20:06:36 up 17:58, 3 users, load average: 0.02, 0.04, 0.05

If I believe the uptime the system never reboots. However, the screen output appears to say the contrary. Does anyone have some insight into this?

cheers…

3

It appears that this system does not like RTF tagged files. Here is the output of the debug file:

volumio@volumio:/var/log$ sudo cat /proc/kmsg <6>[ 0.000000] Booting Linux on physical CPU 0xf00 <6>[ 0.000000] Initializing cgroup subsys cpu <6>[ 0.000000] Initializing cgroup subsys cpuacct <5>[ 0.000000] Linux version 3.18.5-v7+ (dc4@dc4-XPS13-9333) (gcc version 4.8.3 20140303 (prerelease) (crosstool-NG linaro-1.13.1+bzr2650 - Linaro GCC 2014.03) ) #748 SMP PREEMPT Wed Feb 4 21:33:52 GMT 2015 <6>[ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d <6>[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache <6>[ 0.000000] Machine model: Raspberry Pi 2 Model B <6>[ 0.000000] cma: Reserved 8 MiB at 0x3d800000 <6>[ 0.000000] Memory policy: Data cache writealloc <7>[ 0.000000] On node 0 totalpages: 253952 <7>[ 0.000000] free_area_init_node: node 0, pgdat 80820440, node_mem_map bd033000 <7>[ 0.000000] Normal zone: 1984 pages used for memmap <7>[ 0.000000] Normal zone: 0 pages reserved <7>[ 0.000000] Normal zone: 253952 pages, LIFO batch:31 <4>[ 0.000000] [bcm2709_smp_init_cpus] enter (8620->f3003010) <4>[ 0.000000] [bcm2709_smp_init_cpus] ncores=4 <6>[ 0.000000] PERCPU: Embedded 11 pages/cpu @bcffd000 s12864 r8192 d24000 u45056 <7>[ 0.000000] pcpu-alloc: s12864 r8192 d24000 u45056 alloc=11*4096 <7>[ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 <4>[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 251968 <5>[ 0.000000] Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=1824 bcm2708_fb.fbheight=984 bcm2709.boardrev=0xa21041 bcm2709.serial=0x19132d9c smsc95xx.macaddr=B8:27:EB:13:2D:9C bcm2708_fb.fbswap=1 bcm2709.disk_led_gpio=47 bcm2709.disk_led_active_low=0 sdhci-bcm2708.emmc_clock_freq=250000000 vc_mem.mem_base=0x3ea00000 vc_mem.mem_size=0x3f000000 force_turbo=1 dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p3 elevator=noop rootfstype=ext4 rootwait smsc95xx.turbo_mode=N <6>[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes) <6>[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) <6>[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) <4>[ 0.000000] Memory: 989508K/1015808K available (5785K kernel code, 377K rwdata, 1760K rodata, 396K init, 771K bss, 26300K reserved) <5>[ 0.000000] Virtual kernel memory layout: <5>[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) <5>[ 0.000000] fixmap : 0xffc00000 - 0xffe00000 (2048 kB) <5>[ 0.000000] vmalloc : 0xbe800000 - 0xff000000 (1032 MB) <5>[ 0.000000] lowmem : 0x80000000 - 0xbe000000 ( 992 MB) <5>[ 0.000000] modules : 0x7f000000 - 0x80000000 ( 16 MB) <5>[ 0.000000] .text : 0x80008000 - 0x8076670c (7546 kB) <5>[ 0.000000] .init : 0x80767000 - 0x807ca000 ( 396 kB) <5>[ 0.000000] .data : 0x807ca000 - 0x808287ac ( 378 kB) <5>[ 0.000000] .bss : 0x808287ac - 0x808e9694 ( 772 kB) <6>[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 <6>[ 0.000000] Preemptible hierarchical RCU implementation. <6>[ 0.000000] NR_IRQS:480 <6>[ 0.000000] Architected cp15 timer(s) running at 19.20MHz (virt). <6>[ 0.000013] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 3579139424256ns <6>[ 0.000038] Switching to timer-based delay loop, resolution 52ns <6>[ 0.000329] Console: colour dummy device 80x30 <6>[ 0.001782] console [tty1] enabled <6>[ 0.001835] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=192000) <6>[ 0.001917] pid_max: default: 32768 minimum: 301 <6>[ 0.002335] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes) <6>[ 0.002394] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes) <6>[ 0.003692] Initializing cgroup subsys memory <6>[ 0.003778] Initializing cgroup subsys devices <6>[ 0.003833] Initializing cgroup subsys freezer <6>[ 0.003884] Initializing cgroup subsys net_cls <6>[ 0.003950] Initializing cgroup subsys blkio <6>[ 0.004062] CPU: Testing write buffer coherency: ok <6>[ 0.004179] ftrace: allocating 19967 entries in 59 pages <6>[ 0.053513] CPU0: update cpu_capacity 1024 <6>[ 0.053591] CPU0: thread -1, cpu 0, socket 15, mpidr 80000f00 <4>[ 0.053628] [bcm2709_smp_prepare_cpus] enter <6>[ 0.053794] Setting up static identity map for 0x5368b8 - 0x536910 <4>[ 0.113458] [bcm2709_boot_secondary] cpu:1 started (0) 17 <4>[ 0.113761] CPU1: Booted secondary processor <4>[ 0.113770] [bcm2709_secondary_init] enter cpu:1 <6>[ 0.113824] CPU1: update cpu_capacity 1024 <6>[ 0.113833] CPU1: thread -1, cpu 1, socket 15, mpidr 80000f01 <4>[ 0.133425] [bcm2709_boot_secondary] cpu:2 started (0) 18 <4>[ 0.133669] CPU2: Booted secondary processor <4>[ 0.133675] [bcm2709_secondary_init] enter cpu:2 <6>[ 0.133707] CPU2: update cpu_capacity 1024 <6>[ 0.133715] CPU2: thread -1, cpu 2, socket 15, mpidr 80000f02 <4>[ 0.153489] [bcm2709_boot_secondary] cpu:3 started (0) 17 <4>[ 0.153719] CPU3: Booted secondary processor <4>[ 0.153726] [bcm2709_secondary_init] enter cpu:3 <6>[ 0.153755] CPU3: update cpu_capacity 1024 <6>[ 0.153764] CPU3: thread -1, cpu 3, socket 15, mpidr 80000f03 <6>[ 0.153859] Brought up 4 CPUs <6>[ 0.153980] SMP: Total of 4 processors activated (153.60 BogoMIPS). <6>[ 0.154014] CPU: All CPU(s) started in SVC mode. <6>[ 0.155058] devtmpfs: initialized <6>[ 0.178319] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5 <6>[ 0.180498] pinctrl core: initialized pinctrl subsystem <6>[ 0.183563] NET: Registered protocol family 16 <6>[ 0.189259] DMA: preallocated 4096 KiB pool for atomic coherent allocations <6>[ 0.213273] cpuidle: using governor ladder <6>[ 0.243304] cpuidle: using governor menu <4>[ 0.243781] bcm2709.uart_clock = 3000000 <6>[ 0.247037] No ATAGs? <6>[ 0.247101] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers. <6>[ 0.247157] hw-breakpoint: maximum watchpoint size is 8 bytes. <6>[ 0.247220] mailbox: Broadcom VideoCore Mailbox driver <6>[ 0.247367] bcm2708_vcio: mailbox at f300b880 <6>[ 0.247481] bcm_power: Broadcom power driver <4>[ 0.247519] bcm_power_open() -> 0 <4>[ 0.247547] bcm_power_request(0, 8) <4>[ 0.748253] bcm_mailbox_read -> 00000080, 0 <4>[ 0.748286] bcm_power_request -> 0 <6>[ 0.748442] Serial: AMBA PL011 UART driver <6>[ 0.748587] dev:f1: ttyAMA0 at MMIO 0x3f201000 (irq = 83, base_baud = 0) is a PL011 rev3 <6>[ 1.271679] console [ttyAMA0] enabled <5>[ 1.346710] SCSI subsystem initialized <6>[ 1.350730] usbcore: registered new interface driver usbfs <6>[ 1.356400] usbcore: registered new interface driver hub <6>[ 1.361859] usbcore: registered new device driver usb <6>[ 1.368914] Switched to clocksource arch_sys_counter <5>[ 1.403482] FS-Cache: Loaded <6>[ 1.406734] CacheFiles: Loaded <6>[ 1.422236] NET: Registered protocol family 2 <6>[ 1.427863] TCP established hash table entries: 8192 (order: 3, 32768 bytes) <6>[ 1.435103] TCP bind hash table entries: 8192 (order: 4, 65536 bytes) <6>[ 1.441793] TCP: Hash tables configured (established 8192 bind 8192) <6>[ 1.448266] TCP: reno registered <6>[ 1.451534] UDP hash table entries: 512 (order: 2, 16384 bytes) <6>[ 1.457518] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) <6>[ 1.464268] NET: Registered protocol family 1 <6>[ 1.469106] RPC: Registered named UNIX socket transport module. <6>[ 1.475047] RPC: Registered udp transport module. <6>[ 1.479835] RPC: Registered tcp transport module. <6>[ 1.484554] RPC: Registered tcp NFSv4.1 backchannel transport module. <6>[ 1.492163] bcm2708_dma: DMA manager at f3007000 <6>[ 1.496969] vc-mem: phys_addr:0x00000000 mem_base=0x3ea00000 mem_size:0x3f000000(1008 MiB) <6>[ 1.506986] futex hash table entries: 1024 (order: 4, 65536 bytes) <6>[ 1.513494] audit: initializing netlink subsys (disabled) <5>[ 1.519036] audit: type=2000 audit(1.299:1): initialized <5>[ 1.540758] VFS: Disk quotas dquot_6.5.2 <4>[ 1.545079] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) <5>[ 1.554768] FS-Cache: Netfs 'nfs' registered for caching <5>[ 1.561101] NFS: Registering the id_resolver key type <5>[ 1.566232] Key type id_resolver registered <5>[ 1.570484] Key type id_legacy registered <6>[ 1.575564] msgmni has been set to 1948 <6>[ 1.581131] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252) <6>[ 1.588762] io scheduler noop registered (default) <6>[ 1.593610] io scheduler deadline registered <6>[ 1.598209] io scheduler cfq registered <6>[ 1.604718] BCM2708FB: allocated DMA memory fdc00000 <6>[ 1.609774] BCM2708FB: allocated DMA channel 0 @ f3007000 <6>[ 1.645107] Console: switching to colour frame buffer device 228x61 <6>[ 1.670364] bcm2708-dmaengine bcm2708-dmaengine: Load BCM2835 DMA engine driver <6>[ 1.678141] uart-pl011 dev:f1: no DMA platform data <6>[ 1.683202] kgdb: Registered I/O driver kgdboc. <6>[ 1.709469] vc-cma: Videocore CMA driver <6>[ 1.713478] vc-cma: vc_cma_base = 0x00000000 <6>[ 1.718267] vc-cma: vc_cma_size = 0x00000000 (0 MiB) <6>[ 1.723789] vc-cma: vc_cma_initial = 0x00000000 (0 MiB) <6>[ 1.741497] brd: module loaded <6>[ 1.750824] loop: module loaded <6>[ 1.754391] vchiq: vchiq_init_state: slot_zero = 0xbd800000, is_master = 0 <6>[ 1.762233] Loading iSCSI transport class v2.0-870. <6>[ 1.768136] usbcore: registered new interface driver smsc95xx <6>[ 1.774091] dwc_otg: version 3.00a 10-AUG-2012 (platform bus) <4>[ 1.980265] Core Release: 2.80a <4>[ 1.983485] Setting default values for core params <4>[ 1.988403] Finished setting default values for core params <4>[ 2.194515] Using Buffer DMA mode <4>[ 2.197900] Periodic Transfer Interrupt Enhancement - disabled <4>[ 2.203849] Multiprocessor Interrupt Enhancement - disabled <4>[ 2.209534] OTG VER PARAM: 0, OTG VER FLAG: 0 <4>[ 2.213979] Dedicated Tx FIFOs mode <4>[ 2.217915] WARN::dwc_otg_hcd_init:1047: FIQ DMA bounce buffers: virt = 0xbdc14000 dma = 0xfdc14000 len=9024 <4>[ 2.227964] FIQ FSM acceleration enabled for : <4>[ 2.227964] Non-periodic Split Transactions <4>[ 2.227964] Periodic Split Transactions <4>[ 2.227964] High-Speed Isochronous Endpoints <7>[ 2.249595] dwc_otg: Microframe scheduler enabled <4>[ 2.249669] WARN::hcd_init_fiq:412: FIQ on core 1 at 0x803e3ea8 <4>[ 2.260286] WARN::hcd_init_fiq:413: FIQ ASM at 0x803e4204 length 36 <4>[ 2.271215] WARN::hcd_init_fiq:438: MPHI regs_base at 0xbe806000 <6>[ 2.281892] dwc_otg bcm2708_usb: DWC OTG Controller <6>[ 2.291440] dwc_otg bcm2708_usb: new USB bus registered, assigned bus number 1 <6>[ 2.303383] dwc_otg bcm2708_usb: irq 32, io mem 0x00000000 <4>[ 2.313581] Init: Port Power? op_state=1 <4>[ 2.322195] Init: Power Port (0) <6>[ 2.330377] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 <6>[ 2.341899] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 <6>[ 2.353826] usb usb1: Product: DWC OTG Controller <6>[ 2.363186] usb usb1: Manufacturer: Linux 3.18.5-v7+ dwc_otg_hcd <6>[ 2.373822] usb usb1: SerialNumber: bcm2708_usb <6>[ 2.384010] hub 1-0:1.0: USB hub found <6>[ 2.392423] hub 1-0:1.0: 1 port detected <7>[ 2.401401] dwc_otg: FIQ enabled <7>[ 2.401414] dwc_otg: NAK holdoff enabled <7>[ 2.401425] dwc_otg: FIQ split-transaction FSM enabled <7>[ 2.401463] Module dwc_common_port init <6>[ 2.401860] usbcore: registered new interface driver usb-storage <6>[ 2.412799] mousedev: PS/2 mouse device common for all mice <6>[ 2.423667] bcm2835-cpufreq: min=600000 max=900000 <6>[ 2.433378] sdhci: Secure Digital Host Controller Interface driver <6>[ 2.444162] sdhci: Copyright(c) Pierre Ossman <6>[ 2.453336] DMA channels allocated for the MMC driver <6>[ 2.488948] Load BCM2835 MMC driver <6>[ 2.501916] sdhci-pltfm: SDHCI platform and OF driver helper <6>[ 2.513807] ledtrig-cpu: registered to indicate activity on CPUs <6>[ 2.527933] hidraw: raw HID events driver (C) Jiri Kosina <6>[ 2.538269] usbcore: registered new interface driver usbhid <6>[ 2.548574] usbhid: USB HID core driver <6>[ 2.560517] TCP: cubic registered <6>[ 2.570569] Initializing XFRM netlink socket <6>[ 2.579560] NET: Registered protocol family 17 <5>[ 2.592045] Key type dns_resolver registered <5>[ 2.601467] Registering SWP/SWPB emulation handler <4>[ 2.609050] Indeed it is in host mode hprt0 = 00021501 <6>[ 2.621572] registered taskstats version 1 <6>[ 2.630516] vc-sm: Videocore shared memory driver <6>[ 2.639886] [vc_sm_connected_init]: start <3>[ 2.648842] vc_vchi_sm_init: failed to open VCHI service (-1) <3>[ 2.654607] [vc_sm_connected_init]: failed to initialize shared memory service <6>[ 2.671391] [vc_sm_connected_init]: end - returning -1 <6>[ 2.682695] Waiting for root device /dev/mmcblk0p3... <4>[ 2.697129] mmc0: host does not support reading read-only switch, assuming write-enable <6>[ 2.713064] mmc0: new high speed SDHC card at address aaaa <6>[ 2.724059] mmcblk0: mmc0:aaaa SL16G 14.8 GiB <6>[ 2.736185] mmcblk0: p1 p3 <6>[ 2.779017] usb 1-1: new high-speed USB device number 2 using dwc_otg <4>[ 2.790449] Indeed it is in host mode hprt0 = 00001101 <6>[ 2.801471] EXT4-fs (mmcblk0p3): INFO: recovery required on readonly filesystem <6>[ 2.813603] EXT4-fs (mmcblk0p3): write access will be enabled during recovery <6>[ 2.999310] usb 1-1: New USB device found, idVendor=0424, idProduct=9514 <6>[ 3.010972] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 <6>[ 3.023988] hub 1-1:1.0: USB hub found <6>[ 3.032641] hub 1-1:1.0: 5 ports detected <6>[ 3.087516] EXT4-fs (mmcblk0p3): recovery complete <6>[ 3.102304] EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: (null) <6>[ 3.115228] VFS: Mounted root (ext4 filesystem) readonly on device 179:3. <6>[ 3.136226] devtmpfs: mounted <6>[ 3.144695] Freeing unused kernel memory: 396K (80767000 - 807ca000) <6>[ 3.329096] usb 1-1.1: new high-speed USB device number 3 using dwc_otg <6>[ 3.439408] usb 1-1.1: New USB device found, idVendor=0424, idProduct=ec00 <6>[ 3.451407] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 <6>[ 3.466757] smsc95xx v1.0.4 <6>[ 3.533086] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:13:2d:9c <6>[ 3.629162] usb 1-1.3: new high-speed USB device number 4 using dwc_otg <6>[ 3.759887] usb 1-1.3: New USB device found, idVendor=1a40, idProduct=0201 <6>[ 3.772124] usb 1-1.3: New USB device strings: Mfr=0, Product=1, SerialNumber=0 <6>[ 3.784715] usb 1-1.3: Product: USB 2.0 Hub [MTT] <6>[ 3.796872] hub 1-1.3:1.0: USB hub found <6>[ 3.807337] hub 1-1.3:1.0: 7 ports detected <6>[ 4.099299] usb 1-1.3.6: new high-speed USB device number 5 using dwc_otg <6>[ 4.210536] usb 1-1.3.6: New USB device found, idVendor=0bda, idProduct=8176 <6>[ 4.222971] usb 1-1.3.6: New USB device strings: Mfr=1, Product=2, SerialNumber=3 <6>[ 4.235719] usb 1-1.3.6: Manufacturer: Realtek <6>[ 4.245584] usb 1-1.3.6: SerialNumber: 00e04c000001 <6>[ 4.329281] usb 1-1.3.7: new high-speed USB device number 6 using dwc_otg <30>[ 4.381628] udevd[174]: starting version 175 <6>[ 4.481247] usb 1-1.3.7: New USB device found, idVendor=174c, idProduct=55aa <6>[ 4.494373] usb 1-1.3.7: New USB device strings: Mfr=2, Product=3, SerialNumber=1 <6>[ 4.508069] usb 1-1.3.7: Product: ASMT1053E <6>[ 4.508083] usb 1-1.3.7: Manufacturer: asmedia <6>[ 4.508094] usb 1-1.3.7: SerialNumber: 123456789384 <4>[ 4.509542] usb 1-1.3.7: UAS is blacklisted for this device, using usb-storage instead <6>[ 4.509560] usb-storage 1-1.3.7:1.0: USB Mass Storage device detected <6>[ 4.528077] usb-storage 1-1.3.7:1.0: Quirks match for vid 174c pid 55aa: 400000 <6>[ 4.528269] scsi host0: usb-storage 1-1.3.7:1.0 <6>[ 4.575869] usbcore: registered new interface driver uas <4>[ 5.110104] bcm2708_i2c_init_pinmode(1,2) <4>[ 5.128814] bcm2708_i2c_init_pinmode(1,3) <3>[ 5.251975] snd-hifiberry-digi sound: ASoC: CPU DAI (null) not registered <6>[ 5.252530] bcm2708_i2c 3f804000.i2c: BSC1 Controller at 0x3f804000 (irq 79) (baudrate 100000) <5>[ 5.278673] random: nonblocking pool is initialized <3>[ 5.291848] snd-hifiberry-digi sound: snd_soc_register_card() failed: -517 <6>[ 5.304927] platform sound: Driver snd-hifiberry-digi requests probe deferral <6>[ 5.320676] wm8804 1-003b: revision E <6>[ 5.341657] snd-hifiberry-digi sound: wm8804-spdif <-> 3f203000.i2s mapping ok <6>[ 5.431164] usbcore: registered new interface driver rtl8192cu <5>[ 5.520021] scsi 0:0:0:0: Direct-Access asmedia ASMT1053E 0 PQ: 0 ANSI: 6 <5>[ 5.548599] sd 0:0:0:0: [sda] 234441648 512-byte logical blocks: (120 GB/111 GiB) <5>[ 5.565888] sd 0:0:0:0: [sda] Write Protect is off <7>[ 5.577346] sd 0:0:0:0: [sda] Mode Sense: 43 00 00 00 <5>[ 5.578458] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA <6>[ 5.599001] sda: sda1 <5>[ 5.607591] sd 0:0:0:0: Attached scsi generic sg0 type 0 <5>[ 5.621384] sd 0:0:0:0: [sda] Attached SCSI disk <4>[ 6.071016] FAT-fs (sda1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. <6>[ 7.746236] EXT4-fs (mmcblk0p3): re-mounted. Opts: (null) <4>[ 7.975013] EXT4-fs (mmcblk0p3): Mount option "nouser_xattr" will be removed by 3.5 <4>[ 7.975013] Contact linux-ext4@vger.kernel.org if you think we should keep it. <4>[ 7.975013] <6>[ 8.015623] EXT4-fs (mmcblk0p3): re-mounted. Opts: nouser_xattr,errors=remount-ro <4>[ 10.868163] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. <6>[ 13.622540] NET: Registered protocol family 10 <6>[ 14.460708] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready <6>[ 14.671062] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready <4>[ 24.679226] rtw_wx_set_mlme <4>[ 24.687336] rtw_wx_set_mlme, cmd=1, reason=3 <6>[ 100.663097] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup <6>[ 100.675233] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready <6>[ 173.677408] Installing knfsd (copyright (C) 1996 okir@monad.swb.de). <5>[ 304.058921] EXT4-fs (mmcblk0p3): error count since last fsck: 3 <5>[ 304.091563] EXT4-fs (mmcblk0p3): initial error at time 1396987247: mb_free_blocks:1426: block 309248 <5>[ 304.128294] EXT4-fs (mmcblk0p3): last error at time 1396987322: ext4_remount:4680

4

Well, after a couple of days of soaking the system, I can definitely say that the system is not rebooting. Also, I have been unable to duplicate the boot output to the ssh log. That may have been a one time fluke.

The problem appears to be that the system drops off the network from time to time. You will be unable to communicate with it and then after a bit of time, everything will come back.

I have re-installed the digi+ on a raspberry pi b+ so that I can get back to listening to my music. I will setup a test system on my old hdmi monitor. Hopefully, I can use it to run some tests to see if I can duplicate the problem.

The rasperry pi model 2 definitely has the speed and memory to make an excellent music player. It probably needs a few o/s updates to make it more consistent.

cheers…

5

Hi…

Me too! Can’t yet get a handle on the problem. Seems likely 3.18.5 kernel issue, my guess. I do not yet have proof.
System:
Raspberry pi2 model B
IQAudio Pi-Dac+
Edimax ew-7811un

Sometimes it is impossible to ssh into the pi, but Airplay works when I can’t ping the pi. No understanding yet!

Workng…

6

I am making some progress on this.

The interface file contains the following for wlan0:
auto wlan0
iface wlan0 inet dhcp
wireless-power off
wpa-ssid Second Network
wpa-psk xxxxxxxxxx

Manually bringing the interface up gives the following message:
sudo ifup wlan0
Error for wireless request “Set Power Management” (8B2C) :
SET failed on device wlan0 ; Operation not permitted.
ioctl[SIOCSIWAP]: Operation not permitted
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument

So I am assuming that usb power management can’t be set for this particular wifi dongle (Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter).

My current assumption is that usb power management is on and that the system is powering down the adapter when it appears to be not in use, i.e. when the player is idle.

Next, I am going to look at two approaches:

#1) find a workaround to trick the system into thinking that the interface is active. Maybe sending a PING to the router once a minute can force the network interface to stay up.

#2) Find a way of turning power management off at the kernel level for the entire usb system. There are some clues on the net, but I am unable to verify that I have turned of power management.

A couple more days of testing should close off my problem.

cheers…

7

Hi…
Many of the WiFi dongles using the Realtek 8192cu driver for the Raspberry Pi have the power saving mode turned on by default, which causes dropped connections.

Solution:

Create a new configuration file: sudo nano /etc/modprobe.d/8192cu.conf
Add the following line inside the 8192cu.conf file:

options 8192cu rtw_power_mgnt=0 rtw_enusbss=0

Reboot your Raspberry Pi

Once rebooted, the WiFi connection will be stable. No additional work is needed.

Note: Many WiFi dongles do not respond to turning off wireless power management from /etc/network/interfaces file by inserting the line wireless-power off. It does nothing for the low cost WiFi dongles. Even though iwconfig will report Power Management: off it is not true. The problem is with the Realtek8192cu driver.