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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m working on getting a MPC885 to interface with an
onboard CPLD. I’ve successfully talked to the CPLD from our
diagnostic application and I know that it works at the locations that I
specified in the IMMR. I know that when linux loads that the IMMR still has the
settings. However, when I try to do a read from the address I get the following
error:</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Oops: kernel access of bad area, sig: 11</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>NIP: C00BDED8 XER: 8000FF40 LR: C00BDCE0 SP: C1C81E30 REGS:
c1c81d80 TRAP: 0300</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>DAR: F4000002, DSISR: 00000129</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>TASK = c1c80000[19] 'acc2test' Last syscall: 54</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>last math 00000000 last altivec 00000000</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>GPR00: 00000001 C1C81E30 C1C80000 FFFFFFFA C1C81E38 20004C0A
7FFFFE6C 3000B8A8</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>GPR08: 10000560 F4000002 00000001 00000000 538D6C93 10018688
00000000 40000000</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>GPR16: 00000000 00000000 00000001 00000000 00009032 01C81E80
00000000 C0002838</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>GPR24: C0002560 10000560 30024E9C 00000003 C015C198 C015C1C4
7FFFFE6C 20004C0A</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Call backtrace:</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>C003D81C C0042AA4 C00025BC 100106E8 10000494 0FECED14
00000000</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>SIGSEGV</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>It appears it is dying in the memory manager because of a
bad page fault. </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Does anyone have any suggestion as how to fix this?</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanx, </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>-Chris</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
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