Or take the address of the __log_buf symbol then after the crash, reboot and dump the buffer there, so you can see erly printk (before console is up).
Sylvain John F Davis wrote: > > Hello Lily, > > Maybe you could try to put in some printk's and see which line of code > generates an exception. > > JD > > > *"lily" <lichanjuan04 at st.lzu.edu.cn>* > Sent by: linuxppc-embedded-bounces at ozlabs.org > > 09/01/2005 05:55 AM > > > To > <linuxppc-embedded at ozlabs.org> > cc > > Subject > linux hangs after uncompress kernel image > > > > > > > > > i work on octobusHPPC405EP board . when I try to bring up the kernel i > meet the problem that linux hangs after uncompressing image: > > U-Boot 1.1.2 (Jun 3 2005 - 12:05:48) > > CPU: IBM PowerPC 405EP Rev. B at 133.333 MHz (PLB=133, OPB=66, EBC=33 MHz) > IIC Boot EEPROM disabled > PCI async ext clock used, internal PCI arbiter enabled > 16 kB I-Cache 16 kB D-Cache > OCTOBUS Board: ### No HW ID - assuming OCTOBUS HPPC405 > I2C: ready > DRAM: 32 MB > FLASH: 4 MB > =>iminfo 1000000 > ## Checking Image at 01000000 ... > Image Name: Linux-2.4.21-pre5 > Created: 2005-08-03 17:45:20 UTC > Image Type: PowerPC Linux Kernel Image (gzip compressed) > Data Size: 548345 Bytes = 535.5 kB > Load Address: 00000000 > Entry Point: 00000000 > Verifying Checksum ... OK > => bootm 1000000 > ## Booting image at 01000000 ... > Image Name: Linux-2.4.21-pre5 > Created: 2005-08-03 17:45:20 UTC > Image Type: PowerPC Linux Kernel Image (gzip compressed) > Data Size: 548345 Bytes = 535.5 kB > Load Address: 00000000 > Entry Point: 00000000 > Verifying Checksum ... OK > Uncompressing Kernel Image ... OK > > <hang> > what's the problem?? _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded at ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded > > > ------------------------------------------------------------------------ > > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded at ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded