2011-01-05 05:05:10 jffs2 error
Shyam sundar (INDIA)
Message: 97183
Hello world,
I do get following error "jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at..."
Below is the log
bfin> tftpboot 0x1000000 vmImage
Using Blackfin EMAC device
TFTP from server 10.7.143.58; our IP address is 10.7.143.99
Filename 'vmImage'.
Load address: 0x1000000
Loading: ###########################################################
done
Bytes transferred = 852383 (d019f hex)
bfin> sf write 0x1000000 0x40000 0xd019f
bfin> tftpboot 0x1000000 rootfs.jffs2
Using Blackfin EMAC device
TFTP from server 10.7.143.58; our IP address is 10.7.143.99
Filename 'rootfs.jffs2'.
Load address: 0x1000000
Loading: #################################################################
#################################################################
#################################################################
###################################################
done
Bytes transferred = 3604480 (370000 hex)
bfin> sf write 0x1000000 0x1C0000 0x370000
bfin> sfread read 0x1360000 0x1C0000 0x2
Unknown command 'sfread' - try 'help'
bfin> sf read 0x1360000 0x1C0000 0x2
bfin> md.b 0x1360000 0x02
01360000: 85 19 ..
bfin> setenv bootargs root=/dev/mtdblock2 rw rootfstype=jffs2
bfin> setenv sfboot 'sf probe 1; sf read 0x1000000 0x40000 0xd019f; bootm 0x1000000'
bfin> setenv bootcmd run sfboot
bfin> save
Saving Environment to SPI Flash...
Erasing SPI flash...Erase: 20 01 00 00
Erase: 20 01 10 00
Erase: 20 01 20 00
Erase: 20 01 30 00
Erase: 20 01 40 00
Erase: 20 01 50 00
Erase: 20 01 60 00
Erase: 20 01 70 00
Erase: 20 01 80 00
Erase: 20 01 90 00
Erase: 20 01 a0 00
Erase: 20 01 b0 00
Erase: 20 01 c0 00
Erase: 20 01 d0 00
Erase: 20 01 e0 00
Erase: 20 01 f0 00
Writing to SPI flash...done
bfin> print
bootdelay=5
baudrate=57600
loads_echo=1
autoload=no
rootpath=/romfs
hostname=bf537-VOIP
loadaddr=0x1000000
ubootfile=u-boot.ldr
update=tftp $(loadaddr) $(ubootfile);eeprom write $(loadaddr) 0x0 $(filesize)
addip=set bootargs $(bootargs) ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname):eth0:off
ramargs=set bootargs root=/dev/mtdblock0 rw clkin_hz=24576000 earlyprintk=serial,uart0,57600 console=ttyBF0,57600
ramboot=tftp $(loadaddr) uImage;run ramargs;run addip;bootm
nfsargs=set bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath),tcp,nfsvers=3
nfsboot=tftp $(loadaddr) vmImage;run nfsargs;run addip;bootm
flashboot=bootm 0x20100000
ethact=Blackfin EMAC
ethaddr=50:01:50:01:50:01
filesize=370000
fileaddr=1000000
gatewayip=10.200.1.1
netmask=255.255.255.0
ipaddr=10.7.143.99
serverip=10.7.143.58
bootargs=root=/dev/mtdblock2 rw rootfstype=jffs2
sfboot=sf probe 1; sf read 0x1000000 0x40000 0xd019f; bootm 0x1000000
bootcmd=run sfboot
stdin=serial
stdout=serial
stderr=serial
Environment size: 995/8188 bytes
bfin> run sfboot
SF: Got idcode ef 40 17
Entering wibond probe
8192 KiB W25Q64 at 0:1 is now current device
## Booting kernel from Legacy Image at 01000000 ...
Image Name: Linux-2.6.28.10-ADI-2009R1.1-svn
Created: 2011-01-05 7:41:39 UTC
Image Type: Blackfin Linux Kernel Image (gzip compressed)
Data Size: 852319 Bytes = 832.3 kB
Load Address: 00001000
Entry Point: 00181f50
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
Starting Kernel at = 00181f50
console [ttyBF0] enabled, bootconsole disabled
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory available: 29840k/32768k RAM, (124k init code, 1012k kernel code, 472k data, 1024k dma, 292k reserved)
Calibrating delay loop... 1175.55 BogoMIPS (lpj=2351104)
Security Framework initialized
Mount-cache hash table entries: 512
Blackfin Scratchpad data SRAM: 4 KB
Blackfin L1 Data A SRAM: 16 KB (15 KB free)
Blackfin L1 Data B SRAM: 16 KB (16 KB free)
Blackfin L1 Instruction SRAM: 48 KB (37 KB free)
net_namespace: 288 bytes
NET: Registered protocol family 16
Blackfin DMA Controller
stamp_init(): registering device resources
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
NET: Registered protocol family 1
JFFS2 version 2.2. (NAND) �ʩ 2001-2006 Red Hat, Inc.
msgmni has been set to 58
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler cfq registered
simple-gpio: now handling 48 GPIOs: 0 - 47
Serial: Blackfin serial driver
bfin-uart.1: ttyBF0 at MMIO 0xffc00400 (irq = 18) is a BFIN-UART
bfin-uart.1: ttyBF1 at MMIO 0xffc02000 (irq = 20) is a BFIN-UART
brd: module loaded
PPP generic driver version 2.4.2
bfin_mii_bus: probed
bfin_mac: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:10, irq=-1, mdc_clk=2500000Hz(mdc_div=18)@sclk=98MHz)
bfin_mac bfin_mac.0: Blackfin on-chip Ethernet MAC driver, Version 1.1
m25p80 spi0.1: w25q64 (8192 Kbytes)
Creating 3 MTD partitions on "m25p80":
0x00000000-0x00040000 : "bootloader(spi)"
0x00040000-0x001c0000 : "linux kernel(spi)"
0x001c0000-0x00800000 : "file system(spi)"
bfin-spi bfin-spi.0: chipselect 1 already in use
bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500, dma channel@7
bfin-wdt: initialized: timeout=20 sec (nowayout=0)
TCP cubic registered
NET: Registered protocol family 17
Node at 0x00000dc4 with length 0x000007b4 would run over the end of the erase block
Perhaps the file system was created with the wrong erase size?
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000dc8: 0x07b4 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000dcc: 0xfb3f instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000dd0: 0x0013 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000dd4: 0x0002 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000dd8: 0x81ed instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000de0: 0xd290 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000de4: 0x20be instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000de8: 0x20be instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000dec: 0x20be instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000df0: 0x1000 instead
Further such events for this erase block will not be printed
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00001000: 0x2096 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00001004: 0x01bf instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00001008: 0xed62 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000100c: 0xdbba instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00001010: 0x56bc instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00001014: 0xf095 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00001018: 0x86cc instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000101c: 0x6bcc instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00001020: 0xd159 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00001024: 0x10f7 instead
Further such events for this erase block will not be printed
Node at 0x00001d68 with length 0x00000831 would run over the end of the erase block
Perhaps the file system was created with the wrong erase size?
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00002000: 0x946d instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00002004: 0xbf9b instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00002008: 0x008f instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000200c: 0xfcff instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00002010: 0x0776 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00002014: 0x9d64 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00002018: 0x4fa9 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000201c: 0xff0d instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00002020: 0x1ff5 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00002024: 0xf409 instead
Further such events for this erase block will not be printed
Node at 0x00002cfc with length 0x000008dd would run over the end of the erase block
Perhaps the file system was created with the wrong erase size?
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00003000: 0x6398 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00003004: 0x0520 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00003008: 0xeb22 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000300c: 0x8b63 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00003010: 0xec77 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00003014: 0x82fb instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00003018: 0x7357 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000301c: 0xc319 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00003020: 0xb6da instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00003024: 0x6594 instead
Further such events for this erase block will not be printed
Node at 0x000035dc with length 0x00000a3f would run over the end of the erase block
Perhaps the file system was created with the wrong erase size?
Content of stamp.c
static struct mtd_partition bfin_spi_flash_partitions[] = {
{
.name = "bootloader(spi)",
.size = 0x00040000,
.offset = 0,
.mask_flags = MTD_CAP_ROM
}, {
.name = "linux kernel(spi)",
.size = 0x180000, //.size = 0x680000,
.offset = MTDPART_OFS_APPEND,
}, {
.name = "file system(spi)",
.size = MTDPART_SIZ_FULL,
.offset = MTDPART_OFS_APPEND,
}
};
Settings used in kernel build
Device Drivers --->
Memory Technology Devices (MTD) --->
<*> Memory Technology Device (MTD) support
[*] Direct char device access to MTD devices
[*] Caching block device access to MTD devices
Mapping drivers for chip access --->
[*] Support non-linear mappings of flash chips
< > Generic uClinux RAM/ROM filesystem support (disable this option)
Self-contained MTD device drivers --->
<*> Support most SPI Flash chips (AT26DF, M25P, W25X, ...)
<*> Journalling Flash File System v2 (JFFS2) support
(0) JFFS2 debugging verbosity (0 = quiet, 2 = noisy)
[*] JFFS2 write-buffering support
Added the following line in path uclinuxdist-2009R1/linux-2.6.x/drivers/mtd/devices/m25p80.c
static struct flash_info __devinitdata m25p_data [] = {
{ "w25q64", 0xef4017, 0, 64 * 1024, 128, SECT_4K, },
};
When I tried
bfin> tftpboot 0x1000000 uImage.initramfs
bfin> bootm 0x1000000
and gave the following command
root:~> mount -t jffs2 /dev/mtdblock2 /mnt
I got the same error
QuoteReplyEditDelete
2011-01-05 05:25:59 Re: jffs2 error
Aaron Wu (CHINA)
Message: 97185
In the SPI Flash case, have you tried to compare if the whole jffs2 image read back from the SPI flash is the same as the original one located in the RAM?
QuoteReplyEditDelete
2011-01-05 05:42:57 Re: jffs2 error
Shyam sundar (INDIA)
Message: 97186
Hi Aaron,
This the result of comparison
bfin> tftpboot 0x1000000 rootfs.jffs2
Using Blackfin EMAC device
TFTP from server 10.7.143.58; our IP address is 10.7.143.99
Filename 'rootfs.jffs2'.
Load address: 0x1000000
Loading: #################################################################
#################################################################
#################################################################
###################################################
done
Bytes transferred = 3604480 (370000 hex)
bfin> sf write 0x1000000 0x1C0000 0x370000
bfin> sf read 0x1a00000 0x1C0000 0x370000
bfin> cmp.b 0x1000000 0x1a00000 0x370000
Total of 3604480 bytes were the same
QuoteReplyEditDelete
2011-01-05 06:21:33 Re: jffs2 error
Mike Frysinger (UNITED STATES)
Message: 97187
please read the documentation:
www.linux-mtd.infradead.org/faq/jffs2.html#L_magicnfound
further, your own output already tells you:
Perhaps the file system was created with the wrong erase size?
QuoteReplyEditDelete
2011-01-07 01:29:12 Re: jffs2 error
Shyam sundar (INDIA)
Message: 97240
Hello mike,
I am not getting any clue!!
How can I specify the erase size? Do i need to build the rootfs.jffs2 manually?
In the path uclinuxdist-2009R1/linux-2.6.x/drivers/mtd/devices/m25p80.c, I do have specified the correct block and sector size of the flash.
When I booted the kernel using uImage.initramfs and gave the following command
root:/> cat /proc/mtd
dev: size erasesize name
mtd0: 00040000 00001000 "bootloader(spi)"
mtd1: 00180000 00001000 "linux kernel(spi)"
mtd2: 00640000 00001000 "file system(spi)"
I do see the erasesize as 0x1000. Do i need to change this erase size?
QuoteReplyEditDelete
2011-01-07 08:21:49 Re: jffs2 error
Shyam sundar (INDIA)
Message: 97252
I went to file path uclinuxdist-2009R1/user/mtd-utils and executed the following command to create a jffs2 image.
mkfs.jffs2 -l -e 0x10000 -p -d /uclinuxdist-2009R1/romfs -o /tftpboot/rootfs
The block size for my serial flash is 64KB.Even after ensuring the flash erasure before the filesystem image is burnt into the flash, I do face the same "Magic bitmask 0x1985 not found" error
When the flash is erased and when I boot the kernel using uImage.initramfs, executions of following commands dont lead to kernel crash
mount -t jffs2 /dev/mtdblock2 /mnt/
flash_eraseall /dev/mtd2
When the content of mnt was listed,it didnt show up anything as the flash was erased before the kernel was loaded.
When I just burn the jffs2 image into the flash and load the kernel (without burning the kernel image into the flash)
I do get the following messages
bfin> tftpboot 0x1000000 rootfs
Using Blackfin EMAC device
TFTP from server 10.7.143.58; our IP address is 10.7.143.99
Filename 'rootfs'.
Load address: 0x1000000
Loading: #################################################################
#################################################################
#################################################################
################################################################
done
Bytes transferred = 3801088 (3a0000 hex)
bfin> sf write 0x1000000 0x1C0000 0x3a0000
bfin> tftpboot 0x1000000 vmImage
Using Blackfin EMAC device
TFTP from server 10.7.143.58; our IP address is 10.7.143.99
Filename 'vmImage'.
Load address: 0x1000000
Loading: ###########################################################
done
Bytes transferred = 861300 (d2474 hex)
bfin> bootm
## Booting kernel from Legacy Image at 01000000 ...
Image Name: Linux-2.6.28.10-ADI-2009R1.1-svn
Created: 2011-01-07 12:34:47 UTC
Image Type: Blackfin Linux Kernel Image (gzip compressed)
Data Size: 861236 Bytes = 841.1 kB
Load Address: 00001000
Entry Point: 00185f50
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
Starting Kernel at = 00185f50
Linux version 2.6.28.10-ADI-2009R1.1-svn9124 (root@tcoe-desktop) (gcc version 4.1.2 (ADI svn)) #524 Fri Jan 7 18:04:44 IST 2011
bootconsole [early_shadow0] enabled
bootconsole [early_BFuart0] enabled
early printk enabled on early_BFuart0
Board Memory: 32MB
Kernel Managed Memory: 32MB
Memory map:
fixedcode = 0x00000400-0x00000490
text = 0x00001000-0x00100c20
rodata = 0x00100c20-0x00155888
bss = 0x00156000-0x001680b0
data = 0x001680b0-0x00178000
stack = 0x00176000-0x00178000
init = 0x00178000-0x00197000
available = 0x00197000-0x01eff000
DMA Zone = 0x01f00000-0x02000000
Hardware Trace Active and Enabled
Boot Mode: 3
Blackfin support (C) 2004-2009 Analog Devices, Inc.
Compiled for ADSP-BF537 Rev 0.3
Blackfin Linux support by blackfin.uclinux.org/
Processor Speed: 589 MHz core clock and 98 MHz System Clock
NOMPU: setting up cplb tables
Instruction Cache Enabled for CPU0
Data Cache Enabled for CPU0 (write-back)
Built 1 zonelists in Zone order, mobility grouping off. Total pages: 7873
Kernel command line: root=/dev/mtdblock2 rw rootfstype=jffs2 clkin_hz=24576000 earlyprintk=serial,uart0,57600 console=ttyBF0,57600
Configuring Blackfin Priority Driven Interrupts
PID hash table entries: 128 (order: 7, 512 bytes)
console [ttyBF0] enabled, bootconsole disabled
console [ttyBF0] enabled, bootconsole disabled
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory available: 29824k/32768k RAM, (124k init code, 1023k kernel code, 477k data, 1024k dma, 292k reserved)
Calibrating delay loop... 1175.55 BogoMIPS (lpj=2351104)
Security Framework initialized
Mount-cache hash table entries: 512
Blackfin Scratchpad data SRAM: 4 KB
Blackfin L1 Data A SRAM: 16 KB (15 KB free)
Blackfin L1 Data B SRAM: 16 KB (16 KB free)
Blackfin L1 Instruction SRAM: 48 KB (37 KB free)
net_namespace: 288 bytes
NET: Registered protocol family 16
Blackfin DMA Controller
stamp_init(): registering device resources
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
NET: Registered protocol family 1
JFFS2 version 2.2. (NAND) 
2001-2006 Red Hat, Inc.
msgmni has been set to 58
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler cfq registered
simple-gpio: now handling 48 GPIOs: 0 - 47
Serial: Blackfin serial driver
bfin-uart.1: ttyBF0 at MMIO 0xffc00400 (irq = 18) is a BFIN-UART
bfin-uart.1: ttyBF1 at MMIO 0xffc02000 (irq = 20) is a BFIN-UART
brd: module loaded
PPP generic driver version 2.4.2
bfin_mii_bus: probed
bfin_mac: attached PHY driver [Generic PHY] (mii_bus:phy_addr=0:10, irq=-1, mdc_clk=2500000Hz(mdc_div=18)@sclk=98MHz)
bfin_mac bfin_mac.0: Blackfin on-chip Ethernet MAC driver, Version 1.1
m25p80 spi0.1: w25q64 (8192 Kbytes)
Creating 3 MTD partitions on "m25p80":
0x00000000-0x00040000 : "bootloader(spi)"
0x00040000-0x001c0000 : "linux kernel(spi)"
0x001c0000-0x00800000 : "file system(spi)"
bfin-spi bfin-spi.0: chipselect 1 already in use
bfin-spi bfin-spi.0: Blackfin on-chip SPI Controller Driver, Version 1.0, regs_base@ffc00500, dma channel@7
bfin-wdt: initialized: timeout=20 sec (nowayout=0)
TCP cubic registered
NET: Registered protocol family 17
VFS: Mounted root (jffs2 filesystem).
Freeing unused kernel memory: 124k freed
Warning: unable to open an initial console.
Kernel panic - not syncing: No init found. Try passing init= option to kernel.
Can anybody tell me where am I going wrong?
QuoteReplyEditDelete
2011-01-07 11:50:35 Re: jffs2 error
Mike Frysinger (UNITED STATES)
Message: 97254
do not touch the driver code
QuoteReplyEditDelete
2011-01-07 11:51:13 Re: jffs2 error
Mike Frysinger (UNITED STATES)
Message: 97255
use MKFS_JFFS2_FLAGS in your board's uclinux-dist Makefile and let the build system do the rest. if you try to build the image yourself, you're on your own.