I have tried with kgdboe. The kernel doesn't wait at any point of time and boots completely.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 gave the following bootargs: console=ttyS0,115200 root=/dev/ram rw kgdboe=@xxxxxxxxxxxx/,@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=@xxxxxxxxxxxx/,@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 |
