Messages in this thread |  | | From | Rich.Liu@ite ... | Subject | Memory Access Problem | Date | Tue, 15 May 2001 14:36:51 +0800 |
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I have a problem in kernel 2.4.4
I use readw to access memory below 1MB , report "Segmentation fault" and stall in memory
simple code below (this will get paraller port) == int init_module(void){ unsigned int *BIOS_Data=(unsigned int *)0x400; u32 test; test = readw(BIOS_Data);
printk(KERN_CRIT "0x400:%x\n",test); } == but those can work in kernel 2.2.19 , no problem .
can anyone help me ? -- Richliu
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