Sparc: Kernel 2.6.13 to 2.6.15-rc2 bug when running X11

["J.O. Aho" <trizt@iname.com>]

I have been struggling with getting Xorg (6.8.2 and 7.0.0rc1) to work on 
a Sun Ultra10 (Sparc IIi), the 6.8.2 works under kernel 2.4.

Tested kernels:
 2.6.13
 2.6.14.2 (patch to a patch or what?)
 2.6.15-rc1
 2.6.15-rc2

The dmesg entry comes from 2.6.15-rc2, but is kind of the same, expect not 
all versions has the ugly and annoying face.

--- dmesg ---
program X is using MAP_PRIVATE, PROT_WRITE mmap of VM_RESERVED memory, 
which is
deprecated. Please report this to linux-kernel@vger.kernel.org
kernel BUG at arch/sparc64/mm/generic.c:68!
              \|/ ____ \|/
              "@'/ .. \`@"
              /_| \__/ |_\
                 \__U_/
X(6885): Kernel bad sw trap 5 [#1]
TSTATE: 0000000011009603 TPC: 0000000000434d58 TNPC: 0000000000434d5c Y: 
0000000
0    Not tainted
TPC: <io_remap_pfn_range+0x3b8/0x3e0>
g0: fffff800068ba200 g1: 0000000000668c00 g2: 0000000000000001 g3: 
0000000000001
f22
g4: fffff80004324360 g5: 0000000000000010 g6: fffff80000a90000 g7: 
0000000000000
000
o0: 000000000000002f o1: 000000000061e7c8 o2: 0000000000000044 o3: 
0000000012c12
000
o4: 800001fc00600f8a o5: 000001fc00610000 sp: fffff80000a9f271 ret_pc: 
000000000
0434d50
RPC: <io_remap_pfn_range+0x3b0/0x3e0>
l0: 0000000072c04000 l1: 000001fb8d9fe000 l2: 0000000072c04000 l3: 
000001fb8d9fe
000
l4: 000001fb8d9fe000 l5: e000000000000f8a l6: a000000000000f8a l7: 
c000000000000
f8a
i0: 0000000072c02000 i1: 0000000072c02000 i2: fffff80005630000 i3: 
0000000072c02
000
i4: 80000000000006b0 i5: fffff800019a000c i6: fffff80000a9f361 i7: 
000000000053b
7e4
I7: <sbusfb_mmap_helper+0x104/0x160>
Caller[000000000053b7e4]: sbusfb_mmap_helper+0x104/0x160
Caller[0000000000533b74]: fb_mmap+0x134/0x160
Caller[00000000004784a8]: do_mmap_pgoff+0x368/0x780
Caller[00000000004161d8]: sys_mmap+0xf8/0x160
Caller[0000000000406c94]: linux_sparc_syscall32+0x34/0x40
Caller[0000000000286378]: 0x286378
Instruction DUMP: 92102044  7fff6e14  901223c8 <91d02005> 7ffff781 
b13e2000  81
cfe008  01000000  30680005
---- eof ----


--
     //Aho

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  E-Mail: trizt@iname.com            URL: http://www.kotiaho.net/~trizt/
     ICQ: 13696780
  System: Linux System                        (PPC7447/1000 AMD K7A/2000)
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