second ubifs boot from nand kernel panic

Hello

I'm developing using DM8127 IPNC and I'm Having problem with nand boot.

I flashed the file system to nand uboot:

nand scrub 0x006C0000 0xB940000
mw.b 0x81000000 0xFF 0x3400000
tftp 0x81000000 DM812x/nand/ubifs_ipnc.bin
nand erase 0x006C0000 0xB940000
nand write 0x81000000 0x006C0000 0x33A0000 

Now the first boot from nand goes ok, BUT the second time I get kernel panic, here is the log:

U-Boot 2010.06 (Jun 19 2012 - 00:05:44) DM8127_IPNC_3.00.00

TI8148-GP rev 2.1

ARM clk: 600MHz
DDR clk: 400MHz
L3 clk: 200MHz
IVA clk: 450MHz
ISS clk: 400MHz
DSP Default OFF
DSS Default OFF

DRAM: 512 MiB
NAND: HW ECC BCH8 Selected
256 MiB
Using default environment

The 2nd stage U-Boot will now be auto-loaded
Please do not interrupt the countdown till TI8148_EVM prompt if 2nd stage is already flashed
Hit any key to stop autoboot: 2 1 0

NAND read: device 0 offset 0x20000, size 0x40000
262144 bytes read: OK
## Starting application at 0x81000000 ...

U-Boot 2010.06 (Aug 14 2012 - 13:47:25) DM8127_IPNC_3.00.00

TI8148-GP rev 2.1

ARM clk: 600MHz
DDR clk: 400MHz
L3 clk: 200MHz
IVA clk: 450MHz
ISS clk: 400MHz
DSP Default OFF
DSS Default OFF

I2C: ready
DRAM: 512 MiB
NAND: HW ECC BCH8 Selected
256 MiB
MMC: OMAP SD/MMC: 0, ON-BOARD SDIO: 1
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Date: 2011-03-17 (Thursday) Time: 19:00:32
Net: Detected MACID:0:c:c:a0:ff:fa
cpsw
Hit any key to stop autoboot: 2 1 0

Loading from nand0, offset 0x280000
Image Name: Linux-2.6.37_DM8127_IPNC_3.00.00
Created: 2013-04-11 15:21:45 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2338832 Bytes = 2.2 MiB
Load Address: 80008000
Entry Point: 80008000
## Booting kernel from Legacy Image at 81000000 ...
Image Name: Linux-2.6.37_DM8127_IPNC_3.00.00
Created: 2013-04-11 15:21:45 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2338832 Bytes = 2.2 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Linux version 2.6.37_DM8127_IPNC_3.00.00 (smash@smash-host) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #1 Thu Apr 11 18:21:41 IDT 2013
CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: ti8148ipnc
vram size = 4194304 at 0x0
bootconsole [earlycon0] enabled
reserved size = 4194304 at 0x0
FB: Reserving 4194304 bytes SDRAM for VRAM
Memory policy: ECC disabled, Data cache writeback
OMAP chip is TI8148 2.0
SRAM: Mapped pa 0x402f1000 to va 0xfe400000 size: 0xf000
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 19296
Kernel command line: console=ttyO0,115200n8 rootwait=1 rw ubi.mtd=4,2048 rootfstype=ubifs root=ubi0:rootfs init=/init mem=80M vram=4M notifyk.vpssm3_sva=0xBFD00000 ip=dhcp eth=00:0C:0C:A0:FF:FA cmemk.phys_start=0x85000000 cmemk.phys_end=0x89000000 cmemk.allowOverlap=1 earlyprintk
cpsw: kernel boot params Ethernet address: 00:0C:0C:A0:FF:FA
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 76MB = 76MB total
Memory: 72024k/72024k available, 9896k reserved, 0K highmem
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
DMA : 0xffc00000 - 0xffe00000 ( 2 MB)
vmalloc : 0xc5800000 - 0xf8000000 ( 808 MB)
lowmem : 0xc0000000 - 0xc5000000 ( 80 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.init : 0xc0008000 - 0xc0038000 ( 192 kB)
.text : 0xc0038000 - 0xc046d000 (4308 kB)
.data : 0xc046e000 - 0xc04ab400 ( 245 kB)
SLUB: Genslabs=11, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:375
IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
Total of 128 interrupts on 1 active controller
GPMC revision 6.0
Trying to install interrupt handler for IRQ368
Trying to install interrupt handler for IRQ369
Trying to install interrupt handler for IRQ370
Trying to install interrupt handler for IRQ371
Trying to install interrupt handler for IRQ372
Trying to install interrupt handler for IRQ373
Trying to install interrupt handler for IRQ374
Trying to install type control for IRQ375
Trying to set irq flags for IRQ375
OMAP clockevent source: GPTIMER1 at 20000000 Hz
Console: colour dummy device 80x30
Calibrating delay loop... 598.01 BogoMIPS (lpj=2990080)
pid_max: default: 32768 minimum: 301
Security Framework initialized
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
devtmpfs: initialized
omap_voltage_early_init: voltage driver support not added
regulator: core version 0.5
regulator: dummy:
NET: Registered protocol family 16
omap_voltage_domain_lookup: Voltage driver init not yet happened.Faulting!
omap_voltage_add_dev: VDD specified does not exist!
OMAP GPIO hardware version 0.1
OMAP GPIO hardware version 0.1
OMAP GPIO hardware version 0.1
OMAP GPIO hardware version 0.1
omap_mux_init: Add partition: #1: core, flags: 4
_omap_mux_init_gpio: Could not set gpio79
_omap_mux_init_gpio: Could not set gpio80
Debugfs: Only enabling/disabling deep sleep and wakeup timer is supported now
registered ti81xx_vpss device
registered ti81xx_vidout device
registered ti81xx on-chip HDMI device
registered ti81xx_fb device
PWM0 init success.
PWM1 init success.
bio: create slab <bio-0> at 0
SCSI subsystem initialized
USBSS revision 4ea2080b
registerd cppi-dma Intr @ IRQ 17
Cppi41 Init Done
omap_i2c omap_i2c.1: bus 1 rev4.0 at 100 kHz
regulator: VRTC: 1800 mV
regulator: VIO: 1500 mV
regulator: VDD1: 600 <--> 1500 mV at 1100 mV
regulator: VDD2: 600 <--> 1500 mV at 1350 mV
regulator: VDDCTRL: 600 <--> 1400 mV at 1200 mV
regulator: LDO1: 1100 <--> 3300 mV at 1800 mV
regulator: LDO2: 1100 <--> 3300 mV at 1800 mV
regulator: LDO3: 1100 <--> 3300 mV at 3300 mV
regulator: LDO4: 1100 <--> 3300 mV at 1800 mV
regulator: LDO5: 1100 <--> 3300 mV at 3300 mV
regulator: LDO6: 1100 <--> 3300 mV at 3300 mV
regulator: LDO7: 1100 <--> 3300 mV at 3300 mV
regulator: LDO8: 1100 <--> 3300 mV at 1800 mV
tps65911-rtc tps65911-rtc: rtc core: registered tps65911-rtc as rtc0
tps65910 1-002d: No interrupt support, no core IRQ
Advanced Linux Sound Architecture Driver Version 1.0.23.
Switching to clocksource gp timer
musb-hdrc: version 6.0, peripheral, debug=0
musb-hdrc musb-hdrc.0: dma type: dma-cppi41
MUSB controller-0 revision 4ea20800
musb-hdrc musb-hdrc.0: USB Peripheral mode controller at c581e000 using DMA, IRQ 18
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
NetWinder Floating Point Emulator V0.97 (double precision)
PMU: registered new PMU device of type 0
omap-iommu omap-iommu.0: ducati registered
omap-iommu omap-iommu.1: sys registered
JFFS2 version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
msgmni has been set to 140
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
CMEMK module: built on Apr 11 2013 at 18:16:06
Reference Linux version 2.6.37
File /home/smash/appro_dev/Source/ti_tools/linuxutils_3_22_00_02/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c
allocated heap buffer 0xc7000000 of size 0x4000000
cmemk initialized
Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
omap_uart.0: ttyO0 at MMIO 0x48020000 (irq = 72) is a OMAP UART0
console [ttyO0] enabled, bootconsole disabled
console [ttyO0] enabled, bootconsole disabled
omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
omap_uart.3: ttyO3 at MMIO 0x481a6000 (irq = 44) is a OMAP UART3
omap_uart.4: ttyO4 at MMIO 0x481a8000 (irq = 45) is a OMAP UART4
omap_uart.5: ttyO5 at MMIO 0x481aa000 (irq = 46) is a OMAP UART5
brd: module loaded
loop: module loaded
omap2-nand driver initializing
NAND device: Manufacturer ID: 0x2c, Chip ID: 0xca (Micron )
Creating 7 MTD partitions on "omap2-nand.0":
0x000000000000-0x000000020000 : "U-Boot-min"
0x000000020000-0x000000260000 : "U-Boot"
0x000000260000-0x000000280000 : "U-Boot Env"
0x000000280000-0x0000006c0000 : "Kernel"
0x0000006c0000-0x00000c000000 : "File System"
0x00000c000000-0x00000cc00000 : "Data"
0x00000cc00000-0x000010000000 : "Reserved"
UBI: attaching mtd4 to ubi0
UBI: physical eraseblock size: 131072 bytes (128 KiB)
UBI: logical eraseblock size: 126976 bytes
UBI: smallest flash I/O unit: 2048
UBI: sub-page size: 512
UBI: VID header offset: 2048 (aligned 2048)
UBI: data offset: 4096
UBI: max. sequence number: 102
UBI warning: print_rsvd_warning: cannot reserve enough PEBs for bad PEB handling, reserved 13, need 14
UBI: attached mtd4 to ubi0
UBI: MTD device name: "File System"
UBI: MTD device size: 185 MiB
UBI: number of good PEBs: 1481
UBI: number of bad PEBs: 1
UBI: number of corrupted PEBs: 0
UBI: max. allowed volumes: 128
UBI: wear-leveling threshold: 4096
UBI: number of internal volumes: 1
UBI: number of user volumes: 1
UBI: available PEBs: 0
UBI: total number of reserved PEBs: 1481
UBI: number of PEBs reserved for bad PEB handling: 13
UBI: max/mean erase counter: 26/0
UBI: image sequence number: 1095189043
UBI: background thread "ubi_bgt0d" started, PID 39
davinci_mdio davinci_mdio.0: davinci mdio revision 1.6
davinci_mdio davinci_mdio.0: detected phy mask fffffffe
davinci_mdio.0: probed
davinci_mdio davinci_mdio.0: phy[0]: device 0:00, driver unknown
mice: PS/2 mouse device common for all mice
i2c /dev entries driver
Linux video capture interface: v2.00
OMAP Watchdog Timer Rev 0x00: initial timeout 60 sec
notify_init : notify drivercreated for remote proc id 2 at physical Address 0xbfd00000
asoc: tlv320aic3x-hifi <-> davinci-mcasp.2 mapping ok
asoc: HDMI-DAI-CODEC <-> hdmi-dai mapping ok
ALSA device list:
#0: TI8148 IPNC
TCP cubic registered
NET: Registered protocol family 17
Registering the dns_resolver key type
VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
omap_voltage_late_init: Voltage driver support not added
Power Management for TI81XX.
Detected MACID=0:c:c:a0:ff:fa
tps65911-rtc tps65911-rtc: setting system clock to 2011-03-17 19:00:42 UTC (1300388442)
UBI error: ubi_io_read: error -74 (ECC error) while reading 126976 bytes from PEB 338:4096, read 126976 bytes
UBI warning: ubi_eba_copy_leb: error -74 while reading data from PEB 338
UBI error: ubi_io_read: error -74 (ECC error) while reading 126976 bytes from PEB 339:4096, read 126976 bytes
UBI warning: ubi_eba_copy_leb: error -74 while reading data from PEB 339

CPSW phy found : id is : 0x4dd074
PHY 0:01 not found
Sending DHCP requests .
PHY: 0:00 - Link is Up - 1000/Full
., OK
IP-Config: Got DHCP answer from 192.168.50.3, my address is 192.168.50.9
IP-Config: Complete:
device=eth0, addr=192.168.50.9, mask=255.255.255.0, gw=255.255.255.255,
host=192.168.50.9, domain=example.org, nis-domain=(none),
bootserver=192.168.50.3, rootserver=192.168.50.3, rootpath=/tftpboot
UBI error: ubi_io_read: error -74 (ECC error) while reading 126976 bytes from PEB 1479:4096, read 126976 bytes
UBI warning: ubi_eba_copy_leb: error -74 while reading data from PEB 1479
UBI error: ubi_io_read: error -74 (ECC error) while reading 126976 bytes from PEB 595:4096, read 126976 bytes
UBI error: ubi_io_read: error -74 (ECC error) while reading 126976 bytes from PEB 596:4096, read 126976 bytes
UBIFS: recovery needed
UBI error: ubi_io_read: error -74 (ECC error) while reading 2048 bytes from PEB 507:77824, read 2048 bytes
UBIFS error (pid 1): ubifs_leb_read: reading 2048 bytes from LEB 335:73728 failed, error -74
UBI error: ubi_io_read: error -74 (ECC error) while reading 2048 bytes from PEB 508:6144, read 2048 bytes
UBIFS error (pid 1): ubifs_leb_read: reading 2048 bytes from LEB 8:2048 failed, error -74
UBI error: ubi_io_read: error -74 (ECC error) while reading 126976 bytes from PEB 0:4096, read 126976 bytes
UBIFS error (pid 1): replay_log_leb: log error detected while replaying the log at LEB 3:0
List of all partitions:
1f00 128 mtdblock0 (driver?)
1f01 2304 mtdblock1 (driver?)
1f02 128 mtdblock2 (driver?)
1f03 4352 mtdblock3 (driver?)
1f04 189696 mtdblock4 (driver?)
1f05 12288 mtdblock5 (driver?)
1f06 53248 mtdblock6 (driver?)
No filesystem could mount root, tried: ubifs
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
Backtrace:
[<c0046ba0>] (dump_backtrace+0x0/0x110) from [<c0356468>] (dump_stack+0x18/0x1c)
r7:c4414000 r6:c006c550 r5:c002c754 r4:c04abbd0
[<c0356450>] (dump_stack+0x0/0x1c) from [<c03564cc>] (panic+0x60/0x17c)
[<c035646c>] (panic+0x0/0x17c) from [<c00092b4>] (mount_block_root+0x1e0/0x220)
r3:00000000 r2:00000020 r1:c4425f78 r0:c0400e3c
[<c00090d4>] (mount_block_root+0x0/0x220) from [<c0009454>] (prepare_namespace+0x94/0x1d4)
[<c00093c0>] (prepare_namespace+0x0/0x1d4) from [<c00087c4>] (kernel_init+0x114/0x154)
r5:c00086b0 r4:c04ab400
[<c00086b0>] (kernel_init+0x0/0x154) from [<c006c550>] (do_exit+0x0/0x5e4)
r5:c00086b0 r4:00000000

What went wrong?

Tal