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

    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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