Hi all, I wrote a message to linux-mips mailing list for investigating on the assembly code generated in sr_cdrom_status() since adding the suggested printk() stopped the oops. I supposed there is a problem with the compiler, but people there are investigating about problem with cache coherency. You may follow the thread on public web archive, at http://www.linux-mips.org/archives/linux-mips/2008-03/msg00079.html I'll be back on this list after checking any problem with cache coherence and c compiler. Thanks, Giuseppe -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html