Big problem with linux-2.0.33, gcc-2.8.0 and iopl()

Rodrigo Ventura (yoda@isr.ist.utl.pt)
Mon, 6 Apr 1998 13:13:59 +0100 (GMT+0100)

Need URGENT help!
I upgraded to gcc 2.8.0 and after a kernel recompilation,
the X refused to startup -- Xserver core dumped! I traced the problem
up to an outb() call. The problem is related with the iopl()
call. After an iopl(3), any inb() causes a seg fault! The same inb()
preceeded by an appropriate ioperm() works fine. I don't have a clue
what is happening. Any help is greatly appreciated.

Thanks,

--


*** Rodrigo Martins de Matos Ventura, alias <Yoda>
***  yoda@isr.ist.utl.pt, http://www.isr.ist.utl.pt/~yoda
***   Instituto de Sistemas e Robotica, Polo de Lisboa
***    Instituto Superior Tecnico, Lisboa, Portugal
***     PGP Public Key available on my homepage
*** Key fingerprint = 0C 0A 25 58 46 CF 14 99  CF 9C AF 9E 10 02 BB 2A




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