<pre>I am trying to take a working embedded linux system from kernel 2.4 to <br>2.6. The hardware is a custom board using a mpc8270vr processor.<br>The working system uses u-boot 1.1.4 with linux kernel 2.4.24.<br><br>I am using the same u-boot and I am trying to port linux kernel 2.6.18. <br>I believe I have done everything required to get the kernel booting. However, the kernel <br>seems to hang after being uncompressed. Here is what I see after running <br>bootm from u-boot:<br><br>OLT=> tftp 500000 uImage<br>Using FCC1 ETHERNET device<br>TFTP from server 192.168.2.45; our IP address is 192.168.2.109<br>Filename 'uImage'.<br>Load address: 0x500000<br>Loading: #################################################################<br> #################################################################<br> #################################################################<br>done<br>Bytes transferred = 995314 (f2ff2 hex)<br>OLT=> bootm 500000<br>## Booting
image at 00500000 ...<br> Image Name: Linux-2.6.18/Ocean BoradBand Ltd<br> Image Type: PowerPC Linux Kernel Image (gzip compressed)<br> Data Size: 995250 Bytes = 971.9 kB<br> Load Address: 00000000<br> Entry Point: 00000000<br> Verifying Checksum ... OK<br> Uncompressing Kernel Image ... OK<br><br>log_buf context is<br>OLT=> md 1b9d60 100<br>001b9d60: c020c0a4 00004000 00000000 ffffffff . ....@.........<br>001b9d70: 00000001 c01b9d74 c01b9d74 00000001 .......t...t....<br>001b9d80: c01b9d80 c01b9d80 ffffffff 61637175 ............acqu<br>001b9d90: 6972655f 636f6e73 6f6c655f 73656d00 ire_console_sem.<br>001b9da0: 63616c6c 5f636f6e 736f6c65 5f647269 call_console_dri<br>001b9db0: 76657273 00000000 ffffffff 00000001 vers............<br>001b9dc0: 00001388 00000000 00000000 c001571c ..............W.<br>001b9dd0: 00000000 c001589c 00000000 00000000 ......X.........<br>001b9de0: 00000000 00000000 00000000 00000000
................<br>001b9df0: 00000000 00000000 00000000 00000000 ................<br>001b9e00: 00000000 00000000 00000000 00000000 ................<br>001b9e10: 00000000 00000000 00000000 00000000 ................<br>001b9e20: 00000000 00000000 00000000 00000000 ................<br>001b9e30: 00000000 00000000 00000001 65786974 ............exit<br>001b9e40: 5f6d6d00 5f5f6578 69745f73 69676e61 _mm.__exit_signa<br>001b9e50: 6c000000 72656c65 6173655f 7461736b l...release_task<br>001b9e60: 00000000 63686f6f 73655f6e 65775f70 ....choose_new_p<br>001b9e70: 6172656e 74000000 666f7267 65745f6f arent...forget_o<br>001b9e80: 72696769 6e616c5f 70617265 6e740000 riginal_parent..<br>001b9e90: 65786974 5f6e6f74 69667900 646f5f65 exit_notify.do_e<br>001b9ea0: 78697400 646f5f67 726f7570 5f657869 xit.do_group_exi<br>001b9eb0: 74000000 77616974 5f746173 6b5f636f t...wait_task_co<br>001b9ec0: 6e74696e 75656400 77616974 5f746173
ntinued.wait_tas<br>001b9ed0: 6b5f7a6f 6d626965 00000000 77616974 k_zombie....wait<br>001b9ee0: 5f746173 6b5f7374 6f707065 64000000 _task_stopped...<br>001b9ef0: 646f5f77 61697400 0000000a 00000001 do_wait.........<br>001b9f00: c0019b50 00000000 00000000 6370755f ...P........cpu_<br>001b9f10: 63616c6c 6261636b 00000000 00000001 callback........<br>001b9f20: 00000001 5f5f6c6f 63616c5f 62685f65 ....__local_bh_e<br>001b9f30: 6e61626c 65000000 00000001 00000001 nable...........<br>001b9f40: 5f6c6f63 616c5f62 685f656e 61626c65 _local_bh_enable<br>001b9f50: 00000000 7461736b 6c65745f 61637469 ....tasklet_acti<br>001b9f60: 6f6e0000 7461736b 6c65745f 68695f61 on..tasklet_hi_a<br>001b9f70: 6374696f 6e000000 00000001 00000001 ction...........<br>001b9f80: 6c6f6361 6c5f6268 5f656e61 626c6500 local_bh_enable.<br>001b9f90: 00000001 6c6f6361 6c5f6268 5f656e61 ....local_bh_ena<br>001b9fa0: 626c655f 69700000 00000001 5f5f6c6f
ble_ip......__lo<br>001b9fb0: 63616c5f 62685f64 69736162 6c650000 cal_bh_disable..<br>001b9fc0: 00000000 ffffffff c018a9b0 00000200 ................<br>001b9fd0: 00000000 00000000 00000000 00000000 ................<br>001b9fe0: ffffffff c018a9b8 00000100 00000000 ................<br>001b9ff0: 00000000 00000000 00000000 c0075590 ..............U.<br>001ba000: c0075878 00000000 00000000 00000000 ..Xx............<br>001ba010: 00000000 00000000 00000000 00000000 ................<br>001ba020: 00000000 00000000 c001a53c 00000000 ...........<....<br>001ba030: c0075014 00000000 00000000 00000000 ..P.............<br>001ba040: 00000000 00000000 00000000 00000000 ................<br>001ba050: 00000000 00000000 00000000 00000000 ................<br>001ba060: 00000000 00000000 00000000 00000000 ................<br>001ba070: c0075590 c0075878 00000000 00000000 ..U...Xx........<br><br><br>Any ideas would be
appreciated.<br><br>Regards,<br><br>Jie<br><br><br><br></pre><p> 
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