INIT:
Patil, Pankaj P.
Pankaj.Patil at hp.com
Tue Mar 7 04:19:56 EST 2006
I'll look into those config settings. While we are talking about config settings, i noticed i had CONFIG_VT turned on. I do the make ARCH=ppc xconfig but i cannot find the setting where CONFIG_VT gets turned on. I don't want to use the virtual terminal & i believe since the kernel is getting configured with CONFIG_VT=y, it is trying to mount tty0 which is not part of my root file system. Does that make sense??
Is CONFIG_VT dependent on some other config setting?? How do i get CONFIG_VT set to n??
thanks
pankaj
-----Original Message-----
From: Paulinha [mailto:gnathita at gmail.com]
Sent: Monday, March 06, 2006 12:55 AM
To: Patil, Pankaj P.; linuxppc-embedded at ozlabs.org
Subject: Re: INIT:
... and TLB support!!
Paula
On 3/3/06, Patil, Pankaj P. < Pankaj.Patil at hp.com> wrote:
I do have /dev/console in my file system. In fact , i used ethereal on the host to see how far the INIT goes.
I saw all the usual NFS Lookup calls like /lib, /ld- <http://2.3.1.so> 2.3.1.so ..... /libc- <http://2.31.so> 2.31.so
The last NFS lookup call looks like DH:0xbea72a4a/tty0
There are bunch of read replys after that but no more NFS lookups. Is it normal to see a NFS Lookup that looks like 0xbea72a4a/tty0 ??
What should be the next NFS Lookup call?
I did some searching from previous posts but haven't found exactly what i am looking for. I am attaching a link to something that looks similar to my problem. Just in case, someone's having trouble understanding my issue.
http://ozlabs.org/pipermail/linuxppc-embedded/2004-August/015250.html <http://ozlabs.org/pipermail/linuxppc-embedded/2004-August/015250.html>
Thanks
pankaj
-----Original Message-----
From: atul.sabharwal at exgate.tek.com
[mailto: <mailto:atul.sabharwal at exgate.tek.com> atul.sabharwal at exgate.tek.com]
Sent: Tuesday, February 28, 2006 6:03 PM
To: Patil, Pankaj P.
Cc: linuxppc-embedded at ozlabs.org
Subject: RE: INIT:
Easy answer is do you have /dev/console in your file system. Glibc
opens
/dev/console and the kernel uses /dev/ttyS0 as specified on the command
line. There should not be any app calling uart_close as the console
deriver
should be opening it.
--
Atul
Hi,
I am running u-boot & linux2.6.12 on a custom ppc board(functional HW).
I can get to the point where u-boot loads the kernel, kernel does all
the initialization, loads the Root File System over NFS & calls the
Init process.
Next, i am expecting to see a shell prompt. I am not sure where in the
Init process i am failing. I have written my own serial driver(Philips
SC28L194 Quad UART--under development-possible culprit). The printks
work just fine.
All i see is the kernel calling the Init process & after a minute or so
i see uart_close call.
The kernel runs just fine & responds to ping.
What can trigger a uart_close??(tty_release calls release_dev calls
uart_close) I have a JTAG debugger. What's the best way to debug once
Init process is running??
I am attaching a dump of my console:
U-Boot 1.1.3 (Dec 16 2005 - 16:00:23), Build: 0.4.1
SysClock = 120Mhz , TClock = 120Mhz
CPU: MPC7447A v1.1 @ 960 MHz
CPU bus mode : 60x
DRAM: SPD Checksum ok!
-- DIMM1 has 2 banks
-- DIMM2 has 0 banks
ECC Initialization of Bank 0: Done
CAS Latency = 2 tRP = 3 tRAS = 6 tRCD=3
Total SDRAM memory is 1024 MB
Now running in RAM - U-Boot at: 00fc0000
Remapped Internal SRAM to 0xf2000000
Remapped Flash Card to 0xffc00000
FLASH: 4 MB
Addresses 32M - 0M are saved for the U-Boot usage.
Mem malloc Initialization (32M - 16M): Done
Internal SRAM ECC Initialization: Done
***Phy Reset***
Phy Auto-Negotiation Bit ReEnabled in SW
Net: , mv_enet1 [PRIME]
Hit any key to stop autoboot: 0
Ethernet status port 1: Link up, Full Duplex, Speed 100 Mbps
Using mv_enet1 device
TFTP from server 192.168.1.1; our IP address is 192.168.1.2
Filename 'uImage'.
Load address: 0x400000
Loading:
#################################################################
#################################################################
#################################################################
########################
done
Bytes transferred = 1119847 (111667 hex)
### Network statistics: ###
--------------------------
Packets received: 2192
Packets send: 2191
Received bytes: 2347583
Send bytes: 100803
## Booting image at 00400000 ...
Image Name: Linux-2.6.12
Created: 2006-02-14 0:37:17 UTC
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 1119783 Bytes = 1.1 MB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
## cmdline at 0x007FFF00 ... 0x007FFF98
memstart = 0x00000000
memsize = 0x40000000
flashstart = 0xFFC00000
flashsize = 0x00400000
flashoffset = 0x00000000
sramstart = 0xF8000000
sramsize = 0x00400000
bootflags = 0x00000001
intfreq = 960 MHz
busfreq = 120 MHz
ethaddr = 64:00:00:00:00:00
IP addr = 192.168.1.2
baudrate = 115200 bps
tclk = 0 MHz
uboot_ver = 0.4.1a
L3 was init = 0
Total memory = 768MB; using 2048kB for hash table (at c0400000)
Linux version 2.6.12 (root at RHEL40) (gcc version 3.3.3 (DENX ELDK 3.1.1
3.3.3-10)) #154 Mon Feb 13 17:36:35 MST 2006
System Identification:
Freescale 74XX port
Built 1 zonelists
Kernel command line: console=ttyS0,115200 root=/dev/nfs rw
nfsroot=192.168.1.1:/target/chestnut/rootfs
ip= 192.168.1.2:192.168.1.1: <http://192.168.1.1:255> 192.168.1.1:255.255.255.0:DB64xxx:eth0:non
e
PID hash table entries: 4096 (order: 12, 65536 bytes)
time_init: decrementer frequency = 30.000000 MHz
Console: colour dummy device 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 774400k available (1596k kernel code, 556k data, 344k init, 0k
highmem)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
PCI: Probing PCI hardware
JFFS2 version 2.2. (C) 2001-2003 Red Hat, Inc.
Generic RTC Driver v1.07
Serial: SC28L194 driver 4 ports
ttyS0 at MMIO 0x0 (irq = 17) is a PHILIPS SC28L194
ttyS1 at MMIO 0x0 (irq = 17) is a PHILIPS SC28L194
ttyS2 at MMIO 0x0 (irq = 17) is a PHILIPS SC28L194
ttyS3 at MMIO 0x0 (irq = 17) is a PHILIPS SC28L194
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
MV-643xx 10/100/1000 Ethernet Driver
eth0: port 1 with MAC address 00:11:85:da:0b:02
eth0: RX NAPI Enabled
physmap flash device: 400000 at ffc00000
mice: PS/2 mouse device common for all mice
NET: Registered protocol family 2
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 6, 262144 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 17
IP-Config: Complete:
device=eth0, addr= <http://192.168.1.2> 192.168.1.2 , mask= 255.255.255.0, gw= <http://192.168.1.1> 192.168.1.1,
host=DB64xxx, domain=, nis-domain=(none),
bootserver= 192.168.1.1 , rootserver= 192.168.1.1, rootpath=
Looking up port of RPC 100003/2 on 192.168.1.1
Looking up port of RPC 100005/1 on 192.168.1.1 <http://192.168.1.1>
VFS: Mounted root (nfs filesystem).
Freeing unused kernel memory: 344k init
Any help appreceated.
Thanks
pankaj
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