Hi,
I am using MVL 4.0.1 to boot on ML403 board. I have created the
xparameters.h file using EDK 10.1 and I was able to boot the kernel with
32 MB of memory and UART set as std 16550 uart.
Since this board came without sysace flash card I am using ramdisk
technique to boot linux. I created a small ramdisk with my test program
which sleeps for 10 seconds and prints a hello
world using printf. I modified kernel init/main.c to execute /bin/test
(my test program) from the RAMDISK. I created the ramdisk and appended
with zImage using make zImage.initrd command
I used dow method from xmd to download the zImage.initrd.elf on the
board and I was able to boot the board till the point of executing my
/bin/test. However I see that the print statements
from my test program are not coming on the serial port. I see that the
printf calls tty_io write and it goes to uart_write routine in
serial_core.c, however I am not able to see my prints on
the hyperterminal. I can see all the kernel printks except for this
printf statement from my user program. Also all the kernel printks seem
to call serial_8250_console write routine but the
user application seems to call the uart_write routine. Does someone have
any idea about what might be going wrong here? Is it something to do
with serial console settings ?
Any help is greatly appreciated as I am really struggling with this
problem for the past 3 days. Given below is the output from serial port.
I do not have FB support or VT or VT console
Support enabled. Only SERIAL console support is enabled i.e
SERIAL_CORE_CONSOLE/SERIAL_8250_CONSOLE support is enabled
......
......
Serial: 8250/16550 driver $Revision: 1.90 $ 5 ports, IRQ sharing
disabled
Registering platform device 'serial8250'. Parent at platform
ttyS0 at MMIO 0x0 (irq = 9) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
NET: Registered protocol family 24
xemac 0: using fifo mode.
eth0: Xilinx EMAC #0 at 81000000 mapped to 0xC30C0000, irq=0
i2c /dev entries driver
xilinx_iic.0 #0 at 0x81600000 mapped to 0xC30E0000, irq=6
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 4096)
NET: Registered protocol family 1
NET: Registered protocol family 17
interrupts enabled
TX interrupts enabled. register baseaddr c30c0000 offset 7fc is 8
TX interrupts enabled. register baseaddr c30c0000 offset ffc is 0
RX interrupts enabled. register baseaddr c30c0000 offset 17fc is 9
RX interrupts enabled. register baseaddr c30c0000 offset 1ffc is 0
GIER interrupts enabled. register baseaddr c30c0000 offset 7f8 is
80000000
Sending DHCP requests .,... OK
IP-Config: Got DHCP answer from 0.0.0.0, my address is 10.100.12.132
IP-Config: Complete:
device=eth0, addr=10.100.12.132, mask=255.255.255.0,
gw=10.100.12.1,
host=10.100.12.132, domain=hclt.corp.hcl.in, nis-domain=(none),
bootserver=0.0.0.0, rootserver=0.0.0.0, rootpath=
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory: 124k init
done freeing memory. creating console
console created
running process /bin/test
in tty_write
before calling write. buf contents h e l
core write
core write
core write
Kernel panic - not syncing: Attempted to kill init!
<0>Rebooting in 180 seconds..<NULL>
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Hi,
I don't have a clear idea about this, but it seems to me that there's
probably something in your root filesystem that is causing output to be
directed to a different console that the serial console. Maybe it's
using the wrong getty program.
- John
On Thu, 2008-07-03 at 15:42 +0530, Anand Kumar S wrote:
Hi,
I am using MVL 4.0.1 to boot on ML403 board. I have created the
xparameters.h file using EDK 10.1 and I was able to boot the kernel
with 32 MB of memory and UART set as std 16550 uart.
Since this board came without sysace flash card I am using ramdisk
technique to boot linux. I created a small ramdisk with my test
program which sleeps for 10 seconds and prints a hello
world using printf. I modified kernel init/main.c to execute /bin/test
(my test program) from the RAMDISK. I created the ramdisk and appended
with zImage using make zImage.initrd command
I used dow method from xmd to download the zImage.initrd.elf on the
board and I was able to boot the board till the point of executing
my /bin/test. However I see that the print statements
from my test program are not coming on the serial port. I see that the
printf calls tty_io write and it goes to uart_write routine in
serial_core.c, however I am not able to see my prints on
the hyperterminal. I can see all the kernel printks except for this
printf statement from my user program. Also all the kernel printks
seem to call serial_8250_console write routine but the
user application seems to call the uart_write routine. Does someone
have any idea about what might be going wrong here? Is it something to
do with serial console settings ?
Any help is greatly appreciated as I am really struggling with this
problem for the past 3 days. Given below is the output from serial
port. I do not have FB support or VT or VT console
Support enabled. Only SERIAL console support is enabled i.e
SERIAL_CORE_CONSOLE/SERIAL_8250_CONSOLE support is enabled
…..
…..
Serial: 8250/16550 driver $Revision: 1.90 $ 5 ports, IRQ sharing
disabled
Registering platform device 'serial8250'. Parent at platform
ttyS0 at MMIO 0x0 (irq = 9) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
NET: Registered protocol family 24
xemac 0: using fifo mode.
eth0: Xilinx EMAC #0 at 81000000 mapped to 0xC30C0000, irq=0
i2c /dev entries driver
xilinx_iic.0 #0 at 0x81600000 mapped to 0xC30E0000, irq=6
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 4096)
NET: Registered protocol family 1
NET: Registered protocol family 17
interrupts enabled
TX interrupts enabled. register baseaddr c30c0000 offset 7fc is 8
TX interrupts enabled. register baseaddr c30c0000 offset ffc is 0
RX interrupts enabled. register baseaddr c30c0000 offset 17fc is 9
RX interrupts enabled. register baseaddr c30c0000 offset 1ffc is 0
GIER interrupts enabled. register baseaddr c30c0000 offset 7f8 is
80000000
Sending DHCP requests .,... OK
IP-Config: Got DHCP answer from 0.0.0.0, my address is 10.100.12.132
IP-Config: Complete:
device=eth0, addr=10.100.12.132, mask=255.255.255.0,
gw=10.100.12.1,
host=10.100.12.132, domain=hclt.corp.hcl.in, nis-domain=(none),
bootserver=0.0.0.0, rootserver=0.0.0.0, rootpath=
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory: 124k init
done freeing memory. creating console
console created
running process /bin/test
in tty_write
before calling write. buf contents h e l
core write
core write
core write
Kernel panic - not syncing: Attempted to kill init!
<0>Rebooting in 180 seconds..<NULL>
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-----------------------------------------------------------------------------------------------------------------------
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________________________________________________________________________
John Bonesio
Commercial Linux Solutions
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On Thu, Jul 03, 2008 at 03:42:21PM +0530, Anand Kumar S wrote:
Any help is greatly appreciated as I am really struggling with this
problem for the past 3 days. Given below is the output from serial port.
I do not have FB support or VT or VT console
Support enabled. Only SERIAL console support is enabled i.e
SERIAL_CORE_CONSOLE/SERIAL_8250_CONSOLE support is enabled
You kernel output log is incomplete. Please repost the entire output
from the serial port. (I'm expecting to see the kernel command line).
g.
......
......
Serial: 8250/16550 driver $Revision: 1.90 $ 5 ports, IRQ sharing
disabled
Registering platform device 'serial8250'. Parent at platform
ttyS0 at MMIO 0x0 (irq = 9) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
NET: Registered protocol family 24
xemac 0: using fifo mode.
eth0: Xilinx EMAC #0 at 81000000 mapped to 0xC30C0000, irq=0
i2c /dev entries driver
xilinx_iic.0 #0 at 0x81600000 mapped to 0xC30E0000, irq=6
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 4096)
NET: Registered protocol family 1
NET: Registered protocol family 17
interrupts enabled
TX interrupts enabled. register baseaddr c30c0000 offset 7fc is 8
TX interrupts enabled. register baseaddr c30c0000 offset ffc is 0
RX interrupts enabled. register baseaddr c30c0000 offset 17fc is 9
RX interrupts enabled. register baseaddr c30c0000 offset 1ffc is 0
GIER interrupts enabled. register baseaddr c30c0000 offset 7f8 is
80000000
Sending DHCP requests .,... OK
IP-Config: Got DHCP answer from 0.0.0.0, my address is 10.100.12.132
IP-Config: Complete:
device=eth0, addr=10.100.12.132, mask=255.255.255.0,
gw=10.100.12.1,
host=10.100.12.132, domain=hclt.corp.hcl.in, nis-domain=(none),
bootserver=0.0.0.0, rootserver=0.0.0.0, rootpath=
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory: 124k init
done freeing memory. creating console
console created
running process /bin/test
in tty_write
before calling write. buf contents h e l
core write
core write
core write
Kernel panic - not syncing: Attempted to kill init!
<0>Rebooting in 180 seconds..<NULL>
DISCLAIMER:
-----------------------------------------------------------------------------------------------------------------------
The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have
received this email in error please delete it and notify the sender immediately. Before opening any mail and
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