Re: [BUG] PandaBoard hangs before starting init while booting v3.12

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Hi Ben,
On Monday 18 November 2013 08:44 PM, Ben Gamari wrote:
> I'm having difficulty getting a PandaBoard ES rev. B1 to boot v3.12 and
> linux-next (30121118). I'm booting with a brand new u-boot
> (c2e5e802ecb7ab668ce9911b210ed68c804b349f).
> 
> In both cases the device appears to hang shortly before one would expect
> init to start as seen in the boot output below. I'm booting with the
> omap4-panda-es devicetree. As far as I can tell, the machine is
> completely dead and will not respond to even sysrq. I have a PandaBoard
> A4 which apparently has no trouble with the same kernel image.
Which defconfig are you using ?
Can you see if CPU_IDLE is enabled in your defconfig?

I saw a similar failure on my panda es when CPU_IDLE is enabled.
If this is the case for you please apply this[1] patch and give a try.

Hope this helps. Let me know if you need more info.

[1] https://patchwork.kernel.org/patch/3084521/ 

Thanks and regards,
Lokesh

> 
> The only issues I can see in the output are,
> 
>   * pinctrl issues pertaining to wl12xx[1], these shouldn't cause the
>     machine not to boot
>   * Various missing vmmc regulators
>   * hw-breakpoint issues:
>       * Failed to enable monitor mode on CPU 0
>       * CPU 0 failed to disable vector catch
>     These sound serious and occur near the hang. Perhaps this is the culprit?
> 
> Any help would be greatly appreciated.
> 
> Cheers,
> 
> - Ben
> 
> 
> [1] http://www.spinics.net/lists/devicetree/msg07983.html
> 
> 
> reading uEnv-new.txt
> 1147 bytes read in 5 ms (223.6 KiB/s)
> Importing environment from mmc0 ...
> Running uenvcmd ...
> reading zImage-new
> 3738608 bytes read in 172 ms (20.7 MiB/s)
> reading uInitrd-new.img
> 3241151 bytes read in 157 ms (19.7 MiB/s)
> reading /dtbs-new/omap4-panda-es.dtb
> 20188 bytes read in 10 ms (1.9 MiB/s)
> Kernel image @ 0x80300000 [ 0x000000 - 0x390bf0 ]
> ## Loading init Ramdisk from Legacy Image at 81600000 ...
>    Image Name:   
>    Image Type:   ARM Linux RAMDisk Image (gzip compressed)
>    Data Size:    3241087 Bytes = 3.1 MiB
>    Load Address: 81600000
>    Entry Point:  81600000
>    Verifying Checksum ... OK
> ## Flattened Device Tree blob at 815f0000
>    Booting using the fdt blob at 0x815f0000
>    Loading Ramdisk to 8fce8000, end 8ffff47f ... OK
>    Using Device Tree in place at 815f0000, end 815f7edb
> 
> Starting kernel ...
> 
> [    0.000000] Booting Linux on physical CPU 0x0
> [    0.000000] Initializing cgroup subsys cpuset
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Initializing cgroup subsys cpuacct
> [    0.000000] Linux version 3.12.0-next-20131118 (ben@ben-server) (gcc version 4.7.3 (Ubuntu/Linaro 4.7.3-1ubuntu1) ) #11 SMP Mon Nov 18 02:24:43 EST 2013
> [    0.000000] CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
> [    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> [    0.000000] Machine model: TI OMAP4 PandaBoard
> [    0.000000] bootconsole [earlycon0] enabled
> [    0.000000] Memory policy: Data cache writealloc
> [    0.000000] OMAP4460 ES1.1
> [    0.000000] PERCPU: Embedded 9 pages/cpu @c13c8000 s13568 r8192 d15104 u36864
> [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 260368
> [    0.000000] Kernel command line: console=ttyO2,115200n8 earlyprintk initcall_debug vram=16M omapfb.mode=: omapdss.def_disp= root=/dev/mmcblk0p5 ro rootfstype=ext4 fixrtc
> [    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
> [    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
> [    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
> [    0.000000] allocated 2097152 bytes of page_cgroup
> [    0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
> [    0.000000] Memory: 1021188K/1047552K available (7108K kernel code, 620K rwdata, 2940K rodata, 457K init, 833K bss, 26364K reserved, 269312K highmem)
> [    0.000000] Virtual kernel memory layout:
> [    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
> [    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
> [    0.000000]     vmalloc : 0xf0000000 - 0xff000000   ( 240 MB)
> [    0.000000]     lowmem  : 0xc0000000 - 0xef800000   ( 760 MB)
> [    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
> [    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
> [    0.000000]       .text : 0xc0008000 - 0xc09d845c   (10050 kB)
> [    0.000000]       .init : 0xc09d9000 - 0xc0a4b500   ( 458 kB)
> [    0.000000]       .data : 0xc0a4c000 - 0xc0ae7350   ( 621 kB)
> [    0.000000]        .bss : 0xc0ae7350 - 0xc0bb79b8   ( 834 kB)
> [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
> [    0.000000] Hierarchical RCU implementation.
> [    0.000000] NR_IRQS:16 nr_irqs:16 16
> [    0.000000] OMAP clockevent source: timer1 at 32768 Hz
> [    0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 65536000000000ns
> [    0.000000] OMAP clocksource: 32k_counter at 32768 Hz
> [    0.000000] smp_twd: clock not found -2
> [    0.000000] Console: colour dummy device 80x30
> [    0.000000] Calibrating local timer... 349.20MHz.
> [    0.077056] Calibrating delay loop... 1391.00 BogoMIPS (lpj=6955008)
> [    0.119934] pid_max: default: 32768 minimum: 301
> [    0.124908] Security Framework initialized
> [    0.129272] AppArmor: AppArmor initialized
> [    0.133758] Mount-cache hash table entries: 512
> [    0.143310] Initializing cgroup subsys memory
> [    0.147979] Initializing cgroup subsys devices
> [    0.152618] Initializing cgroup subsys freezer
> [    0.157318] Initializing cgroup subsys blkio
> [    0.161773] Initializing cgroup subsys perf_event
> [    0.166809] CPU: Testing write buffer coherency: ok
> [    0.172271] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
> [    0.178375] Setting up static identity map for 0x806b5b60 - 0x806b5bb8
> [    0.185333] L310 cache controller enabled
> [    0.189575] l2x0: 16 ways, CACHE_ID 0x410000c7, AUX_CTRL 0x7e470000, Cache size: 1024 kB
> [    0.199951] CPU1: Booted secondary processor
> [    0.236694] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
> [    0.236816] Brought up 2 CPUs
> [    0.250305] SMP: Total of 2 processors activated.
> [    0.255218] CPU: All CPU(s) started in SVC mode.
> [    0.260803] devtmpfs: initialized
> [    0.268188] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
> [    0.338623] xor: measuring software checksum speed
> [    0.436248]    arm4regs  :   982.800 MB/sec
> [    0.536010]    8regs     :   762.400 MB/sec
> [    0.635803]    32regs    :   802.800 MB/sec
> [    0.640197] xor: using function: arm4regs (982.800 MB/sec)
> [    0.645965] pinctrl core: initialized pinctrl subsystem
> [    0.651733] regulator-dummy: no parameters
> [    0.656555] NET: Registered protocol family 16
> [    0.662567] DMA: preallocated 256 KiB pool for atomic coherent allocations
> [    0.670867] cpuidle: using governor ladder
> [    0.675170] cpuidle: using governor menu
> [    0.692718] OMAP GPIO hardware version 0.1
> [    0.701019] omap-gpmc 50000000.gpmc: GPMC revision 6.0
> [    0.712493] platform 4b501000.aes: Cannot lookup hwmod 'aes'
> [    0.718566] platform 480a5000.des: Cannot lookup hwmod 'des'
> [    0.726593] No ATAGs?
> [    0.729064] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
> [    0.737365] hw-breakpoint: maximum watchpoint size is 4 bytes.
> [    0.743957] omap_init_mbox: hwmod doesn't have valid attrs
> [    0.750549] OMAP DMA hardware revision 0.0
> [    0.764617] bio: create slab <bio-0> at 0
> [    0.935180] raid6: int32x1     69 MB/s
> [    1.104766] raid6: int32x2    117 MB/s
> [    1.274810] raid6: int32x4    116 MB/s
> [    1.444244] raid6: int32x8    125 MB/s
> [    1.448211] raid6: using algorithm int32x8 (125 MB/s)
> [    1.453460] raid6: using intx1 recovery algorithm
> [    1.459045] edma-dma-engine edma-dma-engine.0: Can't allocate PaRAM dummy slot
> [    1.466552] edma-dma-engine: probe of edma-dma-engine.0 failed with error -5
> [    1.484497] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
> [    1.492340] hsusb1_vbus: 3300 mV 
> [    1.495910] reg-fixed-voltage wl12xx_vmmc.10: could not find pctldev for node /ocp/pinmux@4a31e040/pinmux_wl12xx_gpio, deferring probe
> [    1.508422] platform wl12xx_vmmc.10: Driver reg-fixed-voltage requests probe deferral
> [    1.519165] SCSI subsystem initialized
> [    1.523620] usbcore: registered new interface driver usbfs
> [    1.529418] usbcore: registered new interface driver hub
> [    1.535064] usbcore: registered new device driver usb
> [    1.541076] omap_i2c 48070000.i2c: could not find pctldev for node /ocp/pinmux@4a100040/pinmux_i2c1_pins, deferring probe
> [    1.552429] platform 48070000.i2c: Driver omap_i2c requests probe deferral
> [    1.559600] omap_i2c 48072000.i2c: could not find pctldev for node /ocp/pinmux@4a100040/pinmux_i2c2_pins, deferring probe
> [    1.570953] platform 48072000.i2c: Driver omap_i2c requests probe deferral
> [    1.578124] omap_i2c 48060000.i2c: could not find pctldev for node /ocp/pinmux@4a100040/pinmux_i2c3_pins, deferring probe
> [    1.589508] platform 48060000.i2c: Driver omap_i2c requests probe deferral
> [    1.596649] omap_i2c 48350000.i2c: could not find pctldev for node /ocp/pinmux@4a100040/pinmux_i2c4_pins, deferring probe
> [    1.608001] platform 48350000.i2c: Driver omap_i2c requests probe deferral
> [    1.615295] media: Linux media interface: v0.10
> [    1.620147] Linux video capture interface: v2.00
> [    1.626159] Advanced Linux Sound Architecture Driver Initialized.
> [    1.633270] NetLabel: Initializing
> [    1.636871] NetLabel:  domain hash size = 128
> [    1.641418] NetLabel:  protocols = UNLABELED CIPSOv4
> [    1.646636] NetLabel:  unlabeled traffic allowed by default
> [    1.652862] Switched to clocksource 32k_counter
> [    1.675933] AppArmor: AppArmor Filesystem Enabled
> [    1.691864] NET: Registered protocol family 2
> [    1.697143] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
> [    1.704559] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
> [    1.711425] TCP: Hash tables configured (established 8192 bind 8192)
> [    1.718109] TCP: reno registered
> [    1.721527] UDP hash table entries: 512 (order: 2, 16384 bytes)
> [    1.727752] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
> [    1.734802] NET: Registered protocol family 1
> [    1.739746] RPC: Registered named UNIX socket transport module.
> [    1.745941] RPC: Registered udp transport module.
> [    1.750854] RPC: Registered tcp transport module.
> [    1.755798] RPC: Registered tcp NFSv4.1 backchannel transport module.
> [    1.763793] Trying to unpack rootfs image as initramfs...
> [    2.031555] Freeing initrd memory: 3164K (cfce8000 - cffff000)
> [    2.038391] hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
> [    2.050140] audit: initializing netlink socket (disabled)
> [    2.055816] type=2000 audit(2.050:1): initialized
> [    2.279815] bounce pool size: 64 pages
> [    2.289947] VFS: Disk quotas dquot_6.5.2
> [    2.294403] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
> [    2.304626] NFS: Registering the id_resolver key type
> [    2.309936] Key type id_resolver registered
> [    2.314361] Key type id_legacy registered
> [    2.318603] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
> [    2.325744] fuse init (API version 7.22)
> [    2.330932] bio: create slab <bio-1> at 1
> [    2.336303] Btrfs loaded
> [    2.339019] msgmni has been set to 1474
> [    2.345367] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
> [    2.353118] io scheduler noop registered
> [    2.357269] io scheduler deadline registered
> [    2.362060] io scheduler cfq registered (default)
> [    2.371337] pinctrl-single 4a100040.pinmux: 203 pins at pa fc100040 size 406
> [    2.379180] pinctrl-single 4a31e040.pinmux: 28 pins at pa fc31e040 size 56
> [    2.388000] OMAP DSS rev 4.0
> [    2.392578] omapfb omapfb: no displays
> [    2.396636] omapfb omapfb: failed to setup omapfb
> [    2.401550] platform omapfb: Driver omapfb requests probe deferral
> [    2.408966] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
> [    2.416992] 4806a000.serial: ttyO0 at MMIO 0x4806a000 (irq = 104, base_baud = 3000000) is a OMAP UART0
> [    2.427246] 4806c000.serial: ttyO1 at MMIO 0x4806c000 (irq = 105, base_baud = 3000000) is a OMAP UART1
> [    2.437316] 48020000.serial: ttyO2 at MMIO 0x48020000 (irq = 106, base_baud = 3000000) is a OMAP UART2
> [    2.447021] console [ttyO2] enabled
> [    2.447021] console [ttyO2] enabled
> [    2.454376] bootconsole [earlycon0] disabled
> [    2.454376] bootconsole [earlycon0] disabled
> [    2.463806] 4806e000.serial: ttyO3 at MMIO 0x4806e000 (irq = 102, base_baud = 3000000) is a OMAP UART3
> [    2.480438] brd: module loaded
> [    2.486755] loop: module loaded
> [    2.494689] usbcore: registered new interface driver ax88179_178a
> [    2.501159] usbcore: registered new interface driver cdc_ether
> [    2.507415] usbcore: registered new interface driver r815x
> [    2.513244] usbcore: registered new interface driver rndis_host
> [    2.519592] usbcore: registered new interface driver cdc_ncm
> [    2.526092] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [    2.532989] ehci-omap: OMAP-EHCI Host Controller driver
> [    2.558654] ehci-omap 4a064c00.ehci: EHCI Host Controller
> [    2.564544] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
> [    2.572601] ehci-omap 4a064c00.ehci: irq 109, io mem 0x4a064c00
> [    2.592864] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
> [    2.599304] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
> [    2.606475] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
> [    2.614074] usb usb1: Product: EHCI Host Controller
> [    2.619171] usb usb1: Manufacturer: Linux 3.12.0-next-20131118 ehci_hcd
> [    2.626129] usb usb1: SerialNumber: 4a064c00.ehci
> [    2.631652] hub 1-0:1.0: USB hub found
> [    2.635650] hub 1-0:1.0: 3 ports detected
> [    2.640441] usbcore: registered new interface driver usb-storage
> [    2.647338] mousedev: PS/2 mouse device common for all mice
> [    2.654205] i2c /dev entries driver
> [    2.658081] lirc_dev: IR Remote Control driver registered, major 246 
> [    2.665069] smssdio: Siano SMS1xxx SDIO driver
> [    2.669738] smssdio: Copyright Pierre Ossman
> [    2.674285] Driver for 1-wire Dallas network protocol.
> [    2.680847] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
> [    2.688842] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30) initialised: dm-devel@xxxxxxxxxx
> [    2.698333] sdhci: Secure Digital Host Controller Interface driver
> [    2.704833] sdhci: Copyright(c) Pierre Ossman
> [    2.709838] omap-dma-engine 4a056000.dma-controller: allocating channel for 62
> [    2.717468] omap-dma-engine 4a056000.dma-controller: allocating channel for 61
> [    2.725097] omap_hsmmc 4809c000.mmc: vmmc regulator missing
> [    2.730957] omap-dma-engine 4a056000.dma-controller: freeing channel for 61
> [    2.738311] omap-dma-engine 4a056000.dma-controller: freeing channel for 62
> [    2.745666] platform 4809c000.mmc: Driver omap_hsmmc requests probe deferral
> [    2.753082] pinctrl-single 4a31e040.pinmux: mux offset out of range: 0x38 (0x38)
> [    2.760864] pinctrl-single 4a31e040.pinmux: could not add functions for pinmux_wl12xx_pins 56x
> [    2.770111] omap-dma-engine 4a056000.dma-controller: allocating channel for 60
> [    2.777740] omap-dma-engine 4a056000.dma-controller: allocating channel for 59
> [    2.785369] omap_hsmmc 480d5000.mmc: vmmc regulator missing
> [    2.791229] omap-dma-engine 4a056000.dma-controller: freeing channel for 59
> [    2.798553] omap-dma-engine 4a056000.dma-controller: freeing channel for 60
> [    2.805938] platform 480d5000.mmc: Driver omap_hsmmc requests probe deferral
> [    2.814300] ledtrig-cpu: registered to indicate activity on CPUs
> [    2.820739] hidraw: raw HID events driver (C) Jiri Kosina
> [    2.826812] usbcore: registered new interface driver usbhid
> [    2.832641] usbhid: USB HID core driver
> [    2.837249] ashmem: initialized
> d
> [    2.883728] omap-hdmi-audio omap-hdmi-audio: snd_soc_register_card failed (-517)
> [    2.891510] platform omap-hdmi-audio: Driver omap-hdmi-audio requests probe deferral
> [    2.899932] oprofile: using arm/armv7-ca9
> [    2.904724] TCP: cubic registered
> [    2.908874] NET: Registered protocol family 10
> [    2.914245] NET: Registered protocol family 17
> [    2.919281] Key type dns_resolver registered
> [    2.924224] cpu cpu0: dummy supplies not allowed
> [    2.929077] cpufreq_cpu0: failed to get cpu0 regulator: -19
> [    2.934967] cpufreq_cpu0: failed to get cpu0 clock: -2
> [    2.940368] cpufreq-cpu0: probe of cpufreq-cpu0.0 failed with error -2
> [    2.947326] Power Management for TI OMAP4+ devices.
> [    2.952484] Power Management for TI OMAP4.
> [    2.956787] OMAP4 PM: u-boot >= v2012.07 is required for full PM support
> [    2.964233] ThumbEE CPU extension supported.
> [    2.968749] Registering SWP/SWPB emulation handler
> [    2.973815] SmartReflex Class3 initialized
> [    2.978912] registered taskstats version 1
> [    2.983459] AppArmor: AppArmor sha1 policy hashing enabled
> [    2.989776] vwl1271: 1800 mV 
> [    3.000091] Skipping twl internal clock init and using bootloader value (unknown osc rate)
> [    3.009490] twl 0-0048: PIH (irq 39) nested IRQs
> [    3.015655] twl_rtc rtc.11: Enabling TWL-RTC
> [    3.022827] twl_rtc rtc.11: rtc core: registered rtc.11 as rtc0
> [    3.029571] VAUX1_6030: 1000 <--> 3000 mV at 2800 mV 
> [    3.035583] VAUX2_6030: 1200 <--> 2800 mV at 1800 mV 
> [    3.041534] VAUX3_6030: 1000 <--> 3000 mV at 1200 mV 
> [    3.047515] VMMC: 1200 <--> 3000 mV at 3000 mV 
> [    3.052978] VPP: 1800 <--> 2500 mV at 1900 mV 
> [    3.053070] usb 1-1: new high-speed USB device number 2 using ehci-omap
> [    3.065307] VUSIM: 1200 <--> 2900 mV at 1800 mV 
> [    3.070312] VDAC: 1800 mV 
> [    3.073852] VANA: 2100 mV 
> [    3.077301] VCXIO: 1800 mV 
> [    3.077301] VUSB: 3300 mV 
> [    3.084075] V1V8: 1800 mV 
> [    3.087554] V2V1: 2100 mV 
> [    3.098846] omap_i2c 48070000.i2c: bus 0 rev0.11 at 400 kHz
> [    3.105468] omap_i2c 48072000.i2c: bus 1 rev0.11 at 400 kHz
> [    3.116485] omap_i2c 48060000.i2c: bus 2 rev0.11 at 100 kHz
> [    3.122955] omap_i2c 48350000.i2c: bus 3 rev0.11 at 400 kHz
> [    3.129394] omapfb omapfb: no displays
> [    3.133453] omapfb omapfb: failed to setup omapfb
> [    3.133483] platform omapfb: Driver omapfb requests probe deferral
> [    3.145141] omap-dma-engine 4a056000.dma-controller: allocating channel for 62
> [    3.152893] omap-dma-engine 4a056000.dma-controller: allocating channel for 61
> [    3.160583] 4809c000.mmc supply vmmc_aux not found, using dummy regulator
> [    3.168365] hw-breakpoint: Failed to enable monitor mode on CPU 0.
> [    3.175292] hw-breakpoint: CPU 0 failed to disable vector catch
> [    3.183135] omap_hsmmc 4809c000.mmc: pins are not configured from the driver
> [    3.216278] usb 1-1: New USB device found, idVendor=0424, idProduct=9514
> [    3.223419] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
> [    3.231506] hub 1-1:1.0: USB hub found
> [    3.235626] hub 1-1:1.0: 5 ports detected
> [    3.240020] pinctrl-single 4a31e040.pinmux: mux offset out of range: 0x38 (0x38)
> [    3.247894] pinctrl-single 4a31e040.pinmux: could not add functions for pinmux_wl12xx_pins 56x
> [    3.257324] omap-dma-engine 4a056000.dma-controller: allocating channel for 60
> [    3.264953] omap-dma-engine 4a056000.dma-controller: allocating channel for 59
> [    3.272705] 480d5000.mmc supply vmmc_aux not found, using dummy regulator
> 

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