[Buildroot] Linux kernel boot stops after NFS mount

[Klaus Schwarzkopf <schwarzkopf@sensortherm.de>]

Hi,

have you "Generic serial port config" enabled?

See FAQ:

http://buildroot.uclibc.org/downloads/buildroot.html#faq


Regards,

Klaus

Am 08.01.2011 14:02, schrieb Divick Kishore:
> Hi,
>      I am trying to build a custom root filesystem using build root, but
> the build process stops after nfs mount. It seems that init process is
> not launched. Could anyone please suggest how can I debug this problem?
> I have searched the list and tried googling it but couldn't find much help.
>
> The toolchain used for building rootfs is CodeSourcery G++
> Lite 2010.09-50 (arm-none-linux-gnueabi-gcc-4.5.1). My board is able to
> boot using the filesystem provided with the board. The uboot is the one
> that was provided by the h/w vendor and I have built the Linux kernel
> using the above mentioned toolchain.
>
> Version of buildroot used is buildroot-2010.11.
>
> The boot log is shown below and the config file for build root is
> attached with the mail.
>
> =============================================================
> Darrell's loader - Thanks to the u-boot project
> Version 1.0. Build Feb 22 2010 15:45:18
> 64MB?
> 32MB?
> Writing...
> Reading...
> RAM:32MB
>
> 1: Upload Darrell's loader to Dataflash
> 2: Upload u-boot to Dataflash
> 3: Upload Kernel to Dataflash
> 4: Start u-boot
> 5: Upload Filesystem image
> 6: Memory test
> DataFlash:AT45DB321
> Dataflash read successful: Starting U-boot
>
>
> U-Boot 1.1.6 (Oct 22 2007 - 10:35:14)
>
> DRAM:  32 MB
> Atmel: Flash:  0 kB
> DataFlash:AT45DB321
> Nb pages:   8192
> Page Size:    528
> Size= 4325376 bytes
> Logical address: 0xC0000000
> Area 0: C0000000 to C000317F (RO) Darrell loader
> Area 1: C0003180 to C001F73F (RO) U-boot
> Area 2: C001F740 to C002183F      Environment
> Area 3: C0021840 to C01ACFFF      Kernel
> Area 4: C01AD000 to C041FFFF (RO) Filesystem
> In:    serial
> Out:   serial
> Err:   serial
> I am checking if it is connected
> Hit any key to stop autoboot:  0
> I am checking if it is connected
> TFTP from server 192.168.1.4; our IP address is 192.168.1.7
> Filename 'newat91.img'.
> Load address: 0x20200000
> Loading: #################################################################
>           #################################################################
>           #################################################################
>           #################################################################
>           #################################################################
>           #########
> done
> Bytes transferred = 1709973 (1a1795 hex)
> ## Booting image at 20200000 ...
>     Image Name:   Linux Kernel Image
>     Image Type:   ARM Linux Kernel Image (gzip compressed)
>     Data Size:    1709909 Bytes =  1.6 MB
>     Load Address: 20008000
>     Entry Point:  20008000
>     Verifying Checksum ... OK
>     Uncompressing Kernel Image ... OK
>
> Starting kernel ...
>
> Linux version 2.6.21.6 (divkis01 at divkis01-pc) (gcc version 4.5.1
> (Sourcery G++ Lite 2010.09-50) ) #13 Sat Jan 8 18:06:30 IST 2011
> CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0003177
> Machine: emQbit's ECB_AT91 V1
> Memory policy: ECC disabled, Data cache writeback
> Clocks: CPU 179 MHz, master 59 MHz, main 18.432 MHz
> CPU0: D VIVT write-back cache
> CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
> CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
> Built 1 zonelists.  Total pages: 8128
> Kernel command line: mem=32M rootfstype=ext3 root=/dev/nfs
> nfsroot=192.168.1.4:/nfs ip=dhcp console=ttyS0
> AT91: 96 gpio irqs in 3 banks
> PID hash table entries: 128 (order: 7, 512 bytes)
> Console: colour dummy device 80x30
> Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
> Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
> Memory: 32MB = 32MB total
> Memory: 29140KB available (2968K code, 228K data, 104K init)
> Security Framework v1.0.0 initialized
> Capability LSM initialized
> Failure registering Root Plug module with the kernel
> Failure registering Root Plug  module with primary security module.
> Mount-cache hash table entries: 512
> CPU: Testing write buffer coherency: ok
> NET: Registered protocol family 16
> Generic PHY: Registered new driver
> SCSI subsystem initialized
> usbcore: registered new interface driver usbfs
> usbcore: registered new interface driver hub
> usbcore: registered new device driver usb
> 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
> NetWinder Floating Point Emulator V0.97 (double precision)
> fuse init (API version 7.8)
> JFS: nTxBlock = 227, nTxLock = 1821
> io scheduler noop registered
> io scheduler anticipatory registered (default)
> atmel_usart.0: ttyS0 at MMIO 0xfefff200 (irq = 1) is a ATMEL_SERIAL
> atmel_usart.1: ttyS1 at MMIO 0xfffc0000 (irq = 6) is a ATMEL_SERIAL
> loop: loaded (max 8 devices)
> at91_ether: phy_id1=0x0000ffff phy_id2=0x0000ffff
> at91_ether: phy_id=0xffffffff
> at91_ether: phy_id1=0x00000022 phy_id2=0x00001619
> at91_ether: phy_id=0x00221619
> eth0: Link now 100-FullDuplex
> eth0: AT91 ethernet at 0xfefbc000 int=24 100-FullDuplex (00:00:00:00:00:5b)
> eth0: Micrel KS8721 PHY
> usbcore: registered new interface driver zd1201
> st: Version 20070203, fixed bufsize 32768, s/g segs 256
> SCSI Media Changer driver v0.25
> at91_ohci at91_ohci: AT91 OHCI
> at91_ohci at91_ohci: new USB bus registered, assigned bus number 1
> at91_ohci at91_ohci: irq 23, io mem 0x00300000
> usb usb1: configuration #1 chosen from 1 choice
> hub 1-0:1.0: USB hub found
> hub 1-0:1.0: 1 port detected
> Initializing USB Mass Storage driver...
> usbcore: registered new interface driver usb-storage
> USB Mass Storage support registered.
> usbcore: registered new interface driver usbserial
> drivers/usb/serial/usb-serial.c: USB Serial support registered for generic
> usbcore: registered new interface driver usbserial_generic
> drivers/usb/serial/usb-serial.c: USB Serial Driver core
> mice: PS/2 mouse device common for all mice
> i2c /dev entries driver
> AT91 MMC: 4 wire bus mode not supported by this driver - using 1 wire
> TCP cubic registered
> NET: Registered protocol family 1
> NET: Registered protocol family 17
> ieee80211: 802.11 data/management/control stack, git-1.1.13
> ieee80211: Copyright (C) 2004-2005 Intel Corporation
> <jketreno at linux.intel.com <mailto:jketreno@linux.intel.com>>
> eth0: Link now 100-FullDuplex
> eth0: Link now 100-FullDuplex
> Sending DHCP requests ., OK
> IP-Config: Got DHCP answer from 192.168.1.1, my address is 192.168.1.8
> IP-Config: Complete:
>        device=eth0, addr=192.168.1.8, mask=255.255.255.0, gw=192.168.1.1,
>       host=unknown00000000005b, domain=local.lan, nis-domain=(none),
>       bootserver=192.168.1.1, rootserver=192.168.1.4, rootpath=
> Looking up port of RPC 100003/2 on 192.168.1.4
> Looking up port of RPC 100005/1 on 192.168.1.4
> VFS: Mounted root (nfs filesystem).
> Freeing init memory: 104K
>
> =============================================================
>
> ... No output is seen after this.
>
>
> Thanks in advance,
> DivKis
>
>
>
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