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Old 01-22-2007, 05:00 AM   #1
Registered: Aug 2005
Location: Sofia
Distribution: SuSE, ELinOS
Posts: 100

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<BAD> regions in /proc/iomem??


When I load a driver managing an external bus, and then look up in the /proc/iomem file i get this:
-sh-3.00# more iomem
00000000-001cd753 : Kernel code
001cd754-0023d0bf : Kernel data
c0000000-dfffffff : PCI hose 0 MEM Space 0
  c0000000-c0ffffff : <BAD>
  c1000000-c11fffff : <BAD>
  c1200000-c13fffff : <BAD>
  c1400000-c15fffff : <BAD>
  c1600000-c17fffff : <BAD>
  c1800000-c19fffff : <BAD>
  c1a00000-c1bfffff : <BAD>
  c1c00000-c1dfffff : <BAD>
  dfd00000-dfdfffff : PCI Bus #01
  dfe00000-dfefffff : PCI Bus #01
  dffff000-dfffffff : 0000:00:05.0
e0000000-efffffff : PCI hose 1 MEM Space 0
  e1100000-e11003ff : 0001:02:04.0
    e1100000-e11003ff : sym53c8xx
  e1102000-e1103fff : 0001:02:04.0
    e1102000-e1103fff : sym53c8xx
f1002000-f1003fff : ethernet shared base
What does that <BAD> means? That the allocated memory space is unavailable? Or the memory is damaged? Please give me some clue...
I'm using the 2.6.12 kernel for PPC.

Thanks in advance.
Old 01-22-2007, 11:01 AM   #2
Registered: Aug 2005
Location: Sofia
Distribution: SuSE, ELinOS
Posts: 100

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