From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gdatech.co.in (mail.gdatech.co.in [202.144.30.226]) by ozlabs.org (Postfix) with ESMTP id A3BACDDEE7 for ; Wed, 24 Jan 2007 01:47:26 +1100 (EST) Received: from [192.168.0.2] (localhost.localdomain [127.0.0.1]) by predator.gdatech.co.in (Postfix-out) with ESMTP id 246D38780D9 for ; Tue, 23 Jan 2007 06:47:15 -0800 (PST) Received: from mail.gdatech.co.in (unknown [192.168.0.1]) by predator.gdatech.co.in (Postfix-out) with ESMTP id E098F8780BE for ; Tue, 23 Jan 2007 06:47:14 -0800 (PST) Message-ID: <45B61FF2.6070706@gmail.com> Date: Tue, 23 Jan 2007 20:17:14 +0530 From: sudheer MIME-Version: 1.0 To: Vitaly Bordug Subject: Re: regarding kgdb in ppc References: <12c9fc1a0611280820h748cd520pd5546e2803dbab82@mail.gmail.com> <12c9fc1a0611302029h36f29943s119f8ad70b95f2c4@mail.gmail.com> <12c9fc1a0612010331p2c33c048j1af6006deda14abb@mail.gmail.com> <12c9fc1a0612040805p64f23a7bj42fd27891294dfc2@mail.gmail.com> <458E384A.108@gmail.com> <198592450612281634l3e71834i5915139a73e8f5d1@mail.gmail.com> <758a2bbf0612281702u3a4f383bi14e418410bd4f912@mail.gmail.com> <45964D27.6020708@gmail.com> <758a2bbf0612301753q27727b01w92681214a6296434@mail.gmail.com> <45B5A499.4060401@gmail.com> <20070123114917.5668a578@localhost.localdomain> In-Reply-To: <20070123114917.5668a578@localhost.localdomain> Content-Type: multipart/alternative; boundary="------------040605000007080507010209" Cc: kernelnewbies@nl.linux.org, linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is a multi-part message in MIME format. --------------040605000007080507010209 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit >> In my setup i have one serial port on the target(MPC8540) and one on >> host(x86). The document(kgdb_docu_full-2.4.pdf) by default considers >> having two serial ports(two on target and two on host). > To be correct, usually one serial is for serial console, the other-for kgdb. Yet you can either disable serial console, or > have its output into kgdb. host requires only one serial to be tied on ppc_85xx-gdb. > > >> Can anyone plz guide me how to proceed when i have only one serial >> port . ? > having one serial is not a comfy case for serial kgdb. > > >> I want to know the initilization steps for estrablishing the serial >> communication between kgdb(in target) and gdb on host. I tried one or >> two ways but couldnot succeed. >> > > I'd consider kgdboe - it works pretty well with 8540 gianfar (or at least used to work for me so tinkering might be trivial). > I have tried with kgdboe. The kernel doesn't wait at any point of time and boots completely. I gave the following bootargs: console=ttyS0,115200 root=/dev/ram rw kgdboe=@192.168.3.80/,@192.168.3.14/00:08:A1:84:EF:CA kgdbwait My Host IP is 192.168.3.14 and that of target's is 80 I could see the following failure comments while kernel booting. kgdboe: eth0 doesn't support polling, aborting. kgdboe: netpoll_setup failed kgdboe failed NET: Registered protocol family 17 kgdb: Waiting for connection from remote gdb... KGDB cannot initialize I/O yet. RAMDISK: Compressed image found at block 0 Please help me in sorting out this issue and pl let if am wrong in giving the bootargs. The whole dump of boot process is as below: mpc8540ads_init(): exit id mach(): done MMU:enter MMU:hw init MMU:mapin MMU:setio MMU:exit setup_arch: enter setup_arch: bootmem mpc8540ads_setup_arch() arch: exit openpic: enter openpic: timer openpic: external openpic: spurious openpic: exit Memory CAM mapping: CAM0=256Mb, CAM1=0Mb, CAM2=0Mb residual: 0Mb Linux version 2.6.15.5 (root@Sudheer) (gcc version 3.4.4) #43 Tue Jan 23 15:50:57 IST 2007 KGDB cannot initialize I/O yet. Built 1 zonelists Kernel command line: console=ttyS0,115200 root=/dev/ram rw kgdboe=@192.168.3.80/,@192.168.3.14/00:08:A1:84:EF:CA kgdbwait kgdboe: local port 6443 kgdboe: local IP 192.168.3.80 kgdboe: interface eth0 kgdboe: remote port 6442 kgdboe: remote IP 192.168.3.14 kgdboe: remote ethernet address 00:08:a1:84:ef:ca OpenPIC Version 1.2 (1 CPUs and 60 IRQ sources) at fcfbb000 PID hash table entries: 2048 (order: 11, 32768 bytes) Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) Memory: 255744k available (1596k kernel code, 376k data, 120k init, 0k highmem) Mount-cache hash table entries: 512 checking if image is initramfs...it isn't (no cpio magic); looks like an initrd Freeing initrd memory: 1686k freed NET: Registered protocol family 16 PCI: Probing PCI hardware Generic PHY: Registered new driver io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered Generic RTC Driver v1.07 Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled serial8250.0: ttyS0 at MMIO map 0xfdf04500 mem 0xfcffc500 (irq = 26) is a 16550A serial8250.0: ttyS1 at MMIO map 0xfdf04600 mem 0xfcffb600 (irq = 26) is a 16550A RAMDISK driver initialized: 16 RAM disks of 32768K size 1024 blocksize loop: loaded (max 8 devices) Gianfar MII Bus: probed eth0: Gianfar Ethernet Controller Version 1.2, 00:01:af:07:9b:8a eth0: Running with NAPI enabled eth0: 256/256 RX/TX BD ring size eth1: Gianfar Ethernet Controller Version 1.2, 00:01:af:07:9b:8b eth1: Running with NAPI enabled eth1: 256/256 RX/TX BD ring size eth2: Gianfar Ethernet Controller Version 1.2, ff:f8:fe:ff:fb:ff eth2: Running with NAPI enabled eth2: 256/256 RX/TX BD ring size kgdboe: local port 6443 kgdboe: local IP 192.168.3.80 kgdboe: interface eth0 kgdboe: remote port 6442 kgdboe: remote IP 192.168.3.14 kgdboe: remote ethernet address 00:08:a1:84:ef:ca kgdboe: eth0 doesn't support polling, aborting. kgdboe: netpoll_setup failed kgdboe failed i2c /dev entries driver NET: Registered protocol family 2 IP route cache hash table entries: 4096 (order: 2, 16384 bytes) TCP established hash table entries: 16384 (order: 4, 65536 bytes) TCP bind hash table entries: 16384 (order: 4, 65536 bytes) TCP: Hash tables configured (established 16384 bind 16384) TCP reno registered TCP bic registered NET: Registered protocol family 1 NET: Registered protocol family 17 kgdb: Waiting for connection from remote gdb... KGDB cannot initialize I/O yet. RAMDISK: Compressed image found at block 0 VFS: Mounted root (ext2 filesystem). Freeing unused kernel memory: 120k init /usr/sbin/xinetd: error while loading shared libraries: libcrypt.so.1: canno### Application running ... BusyBox v0.60.5 (2005.06.07-01:01+0000) Built-in shell (msh) Enter 'help' for a list of built-in commands. # phy0:7: Link is Up - 100/Full # Thanks Sudheer --------------040605000007080507010209 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit 
In my setup i have one serial port on the target(MPC8540) and one on 
host(x86). The document(kgdb_docu_full-2.4.pdf) by default considers 
having two serial ports(two on target and two on host).
To be correct, usually one serial is for serial console, the other-for kgdb. Yet you can either disable serial console, or 
have its output into kgdb. host requires only one serial to be tied on ppc_85xx-gdb.

  
Can anyone plz guide me how to proceed when i have only one serial
port . ?
having one serial is not a comfy case for serial kgdb.

  
I want to know the initilization steps for estrablishing the serial 
communication between kgdb(in target) and gdb on host. I tried one or 
two ways but couldnot succeed.
    

I'd consider kgdboe - it works pretty well with 8540 gianfar (or at least used to work for me so tinkering might be trivial).
I have tried with kgdboe. The kernel doesn't wait at any point of time and boots completely.
I gave the following bootargs:
console=ttyS0,115200 root=/dev/ram rw kgdboe=@192.168.3.80/,@192.168.3.14/00:08:A1:84:EF:CA kgdbwait

My Host IP is 192.168.3.14 and that of target's is 80

I could see the following failure comments while kernel booting.

kgdboe: eth0 doesn't support polling, aborting.
kgdboe: netpoll_setup failed kgdboe failed

NET: Registered protocol family 17
kgdb: Waiting for connection from remote gdb...
KGDB cannot initialize I/O yet.
RAMDISK: Compressed image found at block 0

Please help me in sorting out this issue and pl let if am wrong in giving the bootargs.

The whole dump of boot process is as below:

mpc8540ads_init(): exit
id mach(): done
MMU:enter
MMU:hw init
MMU:mapin
MMU:setio
MMU:exit
setup_arch: enter
setup_arch: bootmem
mpc8540ads_setup_arch()
arch: exit
openpic: enter
openpic: timer
openpic: external
openpic: spurious
openpic: exit

Memory CAM mapping: CAM0=256Mb, CAM1=0Mb, CAM2=0Mb residual: 0Mb
Linux version 2.6.15.5 (root@Sudheer) (gcc version 3.4.4) #43 Tue Jan 23 15:50:57
IST 2007
KGDB cannot initialize I/O yet.
Built 1 zonelists
Kernel command line: console=ttyS0,115200 root=/dev/ram rw
kgdboe=@192.168.3.80/,@192.168.3.14/00:08:A1:84:EF:CA kgdbwait
kgdboe: local port 6443
kgdboe: local IP 192.168.3.80
kgdboe: interface eth0
kgdboe: remote port 6442
kgdboe: remote IP 192.168.3.14
kgdboe: remote ethernet address 00:08:a1:84:ef:ca
OpenPIC Version 1.2 (1 CPUs and 60 IRQ sources) at fcfbb000
PID hash table entries: 2048 (order: 11, 32768 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 255744k available (1596k kernel code, 376k data, 120k init, 0k highmem)
Mount-cache hash table entries: 512
checking if image is initramfs...it isn't (no cpio magic); looks like an initrd
Freeing initrd memory: 1686k freed
NET: Registered protocol family 16
PCI: Probing PCI hardware
Generic PHY: Registered new driver
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
Generic RTC Driver v1.07
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
serial8250.0: ttyS0 at MMIO map 0xfdf04500 mem 0xfcffc500 (irq = 26) is a 16550A
serial8250.0: ttyS1 at MMIO map 0xfdf04600 mem 0xfcffb600 (irq = 26) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 32768K size 1024 blocksize
loop: loaded (max 8 devices)
Gianfar MII Bus: probed
eth0: Gianfar Ethernet Controller Version 1.2, 00:01:af:07:9b:8a
eth0: Running with NAPI enabled
eth0: 256/256 RX/TX BD ring size
eth1: Gianfar Ethernet Controller Version 1.2, 00:01:af:07:9b:8b
eth1: Running with NAPI enabled
eth1: 256/256 RX/TX BD ring size
eth2: Gianfar Ethernet Controller Version 1.2, ff:f8:fe:ff:fb:ff
eth2: Running with NAPI enabled
eth2: 256/256 RX/TX BD ring size
kgdboe: local port 6443
kgdboe: local IP 192.168.3.80
kgdboe: interface eth0
kgdboe: remote port 6442
kgdboe: remote IP 192.168.3.14
kgdboe: remote ethernet address 00:08:a1:84:ef:ca
kgdboe: eth0 doesn't support polling, aborting.
kgdboe: netpoll_setup failed kgdboe failed
i2c /dev entries driver
NET: Registered protocol family 2
IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
TCP established hash table entries: 16384 (order: 4, 65536 bytes)
TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
kgdb: Waiting for connection from remote gdb...
KGDB cannot initialize I/O yet.
RAMDISK: Compressed image found at block 0
VFS: Mounted root (ext2 filesystem).
Freeing unused kernel memory: 120k init
/usr/sbin/xinetd: error while loading shared libraries: libcrypt.so.1: canno###
Application running ...


BusyBox v0.60.5 (2005.06.07-01:01+0000) Built-in shell (msh)
Enter 'help' for a list of built-in commands.

# phy0:7: Link is Up - 100/Full

#

Thanks
Sudheer
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