[lkml]   [2001]   [May]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectMemory Access Problem
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 ?

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:53    [W:2.196 / U:0.000 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site