A further cold restart. same error message after 96 seconds. [ 96.624816] omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX Here's the full dmesg: root@linaro:~# dmesg [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 2.6.38-1000-linaro-omap (buildd@crabapple) (gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-3ubuntu3) ) #1-Ubuntu SMP Thu F) [ 0.000000] CPU: ARMv7 Processor [411fc083] revision 3 (ARMv7), cr=10c53c7f [ 0.000000] CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache [ 0.000000] Machine: OMAP3 Beagle Board [ 0.000000] bootconsole [earlycon0] enabled [ 0.000000] Reserving 12582912 bytes SDRAM for VRAM [ 0.000000] Memory policy: ECC disabled, Data cache writeback [ 0.000000] OMAP3430/3530 ES3.1 (l2cache iva sgx neon isp ) [ 0.000000] SRAM: Mapped pa 0x40200000 to va 0xfe400000 size: 0x10000 [ 0.000000] On node 0 totalpages: 62464 [ 0.000000] free_area_init_node: node 0, pgdat c07ff740, node_mem_map c08c8000 [ 0.000000] Normal zone: 512 pages used for memmap [ 0.000000] Normal zone: 0 pages reserved [ 0.000000] Normal zone: 61952 pages, LIFO batch:15 [ 0.000000] PERCPU: Embedded 8 pages/cpu @c0acb000 s9760 r8192 d14816 u32768 [ 0.000000] pcpu-alloc: s9760 r8192 d14816 u32768 alloc=8*4096 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 61952 [ 0.000000] Kernel command line: console=tty0 console=ttyO2,115200n8 root=UUID=b8d95c91-422a-48a1-90d5-54fa509c9fd2 rootwait ro earlyprintk0 [ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes) [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) [ 0.000000] allocated 1310720 bytes of page_cgroup [ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups [ 0.000000] Memory: 244MB = 244MB total [ 0.000000] Memory: 232936k/232936k available, 29208k reserved, 0K highmem [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB) [ 0.000000] DMA : 0xffc00000 - 0xffe00000 ( 2 MB) [ 0.000000] vmalloc : 0xd0800000 - 0xf8000000 ( 632 MB) [ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB) [ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB) [ 0.000000] .init : 0xc0008000 - 0xc005b000 ( 332 kB) [ 0.000000] .text : 0xc005b000 - 0xc079bf58 (7428 kB) [ 0.000000] .data : 0xc079c000 - 0xc0801190 ( 405 kB) [ 0.000000] SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] RCU-based detection of stalled CPUs is disabled. [ 0.000000] NR_IRQS:402 [ 0.000000] Clocking rate (Crystal/Core/MPU): 26.0/332/500 MHz [ 0.000000] Reprogramming SDRC clock to 332000000 Hz [ 0.000000] GPMC revision 5.0 [ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 4.0) with 96 interrupts [ 0.000000] Total of 96 interrupts on 1 active controller [ 0.000000] OMAP clockevent source: GPTIMER12 at 32768 Hz [ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms [ 0.000000] Console: colour dummy device 80x30 [ 0.000000] console [tty0] enabled [ 0.288635] Calibrating delay loop... 522.02 BogoMIPS (lpj=2039808) [ 0.461273] pid_max: default: 32768 minimum: 301 [ 0.466339] Security Framework initialized [ 0.470764] AppArmor: AppArmor initialized [ 0.475097] Yama: becoming mindful. [ 0.479125] Mount-cache hash table entries: 512 [ 0.484802] Initializing cgroup subsys ns [ 0.489044] ns_cgroup deprecated: consider using the 'clone_children' flag without the ns_cgroup. [ 0.498352] Initializing cgroup subsys cpuacct [ 0.503112] Initializing cgroup subsys memory [ 0.507781] Initializing cgroup subsys devices [ 0.512451] Initializing cgroup subsys freezer [ 0.517272] CPU: Testing write buffer coherency: ok [ 0.522766] hw perfevents: enabled with ARMv7 Cortex-A8 PMU driver, 5 counters available [ 0.532379] Brought up 1 CPUs [ 0.535552] SMP: Total of 1 processors activated (522.02 BogoMIPS). [ 0.542724] devtmpfs: initialized [ 0.550781] print_constraints: dummy: [ 0.555084] NET: Registered protocol family 16 [ 0.561614] OMAP GPIO hardware version 2.5 [ 0.566040] omap_device: omap_gpio.1: new worst case activate latency 0: 30517 [ 0.573699] OMAP GPIO hardware version 2.5 [ 0.578155] OMAP GPIO hardware version 2.5 [ 0.582611] OMAP GPIO hardware version 2.5 [ 0.587036] OMAP GPIO hardware version 2.5 [ 0.591522] OMAP GPIO hardware version 2.5 [ 0.597564] omap_mux_init: Add partition: #1: core, flags: 0 [ 0.604675] OMAP3 Beagle Rev: C4 [ 0.609161] omap_device: omap_dss: clk_add_alias for tv_clk failed [ 0.615722] omap_device: omap_dss: clk_add_alias for video_clk failed [ 0.622497] omap_device: omap_dss: clk_add_alias for sys_clk failed [ 0.630065] omap_device: omap_uart.0: new worst case activate latency 0: 30517 [ 0.640991] Found NAND on CS0 [ 0.644165] Registering NAND on CS0 [ 0.648376] hw-breakpoint: debug architecture 0x4 unsupported. [ 0.659545] OMAP DMA hardware revision 4.0 [ 0.673004] bio: create slab at 0 [ 0.680114] SCSI subsystem initialized [ 0.684478] libata version 3.00 loaded. [ 0.685058] usbcore: registered new interface driver usbfs [ 0.691009] usbcore: registered new interface driver hub [ 0.696838] usbcore: registered new device driver usb [ 0.702514] omap_device: omap_i2c.1: new worst case activate latency 0: 30517 [ 0.710144] omap_i2c omap_i2c.1: bus 1 rev3.12 at 2600 kHz [ 0.719268] twl4030: PIH (irq 7) chaining IRQs 368..375 [ 0.724884] twl4030: power (irq 373) chaining IRQs 376..383 [ 0.731384] twl4030: gpio (irq 368) chaining IRQs 384..401 [ 0.740051] print_constraints: VUSB1V5: 1500 mV normal standby [ 0.746887] print_constraints: VUSB1V8: 1800 mV normal standby [ 0.753631] print_constraints: VUSB3V1: 3100 mV normal standby [ 0.761322] print_constraints: VMMC1: 1850 <--> 3150 mV at 3000 mV normal standby [ 0.769836] print_constraints: VDAC: 1800 mV normal standby [ 0.776336] print_constraints: VPLL2: 1800 mV normal standby [ 0.783050] print_constraints: VSIM: 1800 <--> 3000 mV at 1800 mV normal standby [ 0.791076] omap_device: omap_i2c.1: new worst case deactivate latency 0: 30517 [ 0.810211] omap_i2c omap_i2c.3: bus 3 rev3.12 at 100 kHz [ 0.817321] Advanced Linux Sound Architecture Driver Version 1.0.23. [ 0.824981] NetLabel: Initializing [ 0.828643] NetLabel: domain hash size = 128 [ 0.833251] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.838562] NetLabel: unlabeled traffic allowed by default [ 0.847564] DMA-API: preallocated 4096 debug entries [ 0.852874] DMA-API: debugging enabled by kernel config [ 0.858398] Switching to clocksource 32k_counter [ 0.867645] Switched to NOHz mode on CPU #0 [ 0.883880] AppArmor: AppArmor Filesystem Enabled [ 0.908905] NET: Registered protocol family 2 [ 0.914031] IP route cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.922576] TCP established hash table entries: 8192 (order: 4, 65536 bytes) [ 0.930236] TCP bind hash table entries: 8192 (order: 4, 65536 bytes) [ 0.937255] TCP: Hash tables configured (established 8192 bind 8192) [ 0.943939] TCP reno registered [ 0.947296] UDP hash table entries: 128 (order: 0, 4096 bytes) [ 0.953460] UDP-Lite hash table entries: 128 (order: 0, 4096 bytes) [ 0.960540] NET: Registered protocol family 1 [ 0.965270] NetWinder Floating Point Emulator V0.97 (double precision) [ 0.973419] PMU: registered new PMU device of type 0 [ 0.979278] audit: initializing netlink socket (disabled) [ 0.985473] Trying to unpack rootfs image as initramfs... [ 0.998168] type=2000 audit(0.703:1): initialized [ 1.444213] VFS: Disk quotas dquot_6.5.2 [ 1.448974] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [ 1.471862] fuse init (API version 7.16) [ 1.483825] Btrfs loaded [ 1.486602] msgmni has been set to 454 [ 1.507354] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253) [ 1.515228] io scheduler noop registered [ 1.519378] io scheduler deadline registered [ 1.528686] io scheduler cfq registered (default) [ 1.590606] OMAP DSS rev 2.0 [ 1.865112] Freeing initrd memory: 4352K [ 1.920684] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 1.929229] omap_uart.0: ttyO0 at MMIO 0x4806a000 (irq = 72) is a OMAP UART0 [ 1.937103] omap_uart.1: ttyO1 at MMIO 0x4806c000 (irq = 73) is a OMAP UART1 [ 1.944915] omap_uart.2: ttyO2 at MMIO 0x49020000 (irq = 74) is a OMAP UART2 [ 1.952392] console [ttyO2] enabled, bootconsole disabled [ 1.976440] brd: module loaded [ 1.985717] loop: module loaded [ 1.990509] i2c-core: driver [adp5520] using legacy suspend method [ 1.997131] i2c-core: driver [adp5520] using legacy resume method [ 2.005096] omap2-nand driver initializing [ 2.009826] ONFI flash detected [ 2.013732] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xba (Micron NAND 256MiB 1,8V 16-bit) [ 2.022888] Creating 5 MTD partitions on "omap2-nand.0": [ 2.028564] 0x000000000000-0x000000080000 : "X-Loader" [ 2.036254] 0x000000080000-0x000000260000 : "U-Boot" [ 2.044097] 0x000000260000-0x000000280000 : "U-Boot Env" [ 2.051544] 0x000000280000-0x000000680000 : "Kernel" [ 2.060394] 0x000000680000-0x000010000000 : "File System" [ 2.180084] PPP generic driver version 2.4.2 [ 2.185180] SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled). [ 2.195434] CSLIP: code copyright 1989 Regents of the University of California. [ 2.203186] SLIP linefill/keepalive option. [ 2.207916] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 4.223175] ehci-omap ehci-omap.0: OMAP-EHCI Host Controller [ 4.229370] ehci-omap ehci-omap.0: new USB bus registered, assigned bus number 1 [ 4.237487] ehci-omap ehci-omap.0: irq 77, io mem 0x48064800 [ 4.254486] ehci-omap ehci-omap.0: USB 2.0 started, EHCI 1.00 [ 4.261657] hub 1-0:1.0: USB hub found [ 4.265747] hub 1-0:1.0: 3 ports detected [ 4.301818] udc: OMAP UDC driver, version: 4 October 2004 (iso) (dma) [ 4.309509] mousedev: PS/2 mouse device common for all mice [ 4.316619] twl_rtc twl_rtc: rtc core: registered twl_rtc as rtc0 [ 4.324157] twl_rtc twl_rtc: Enabling TWL-RTC. [ 4.330139] device-mapper: uevent: version 1.0.3 [ 4.335876] device-mapper: ioctl: 4.19.1-ioctl (2011-01-07) initialised: