radix_tree_tag_set height is radix_tree_tag_set index is radix_tree_ta

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radix_tree_tag_set: height is 0
radix_tree_tag_set: index is 0
radix_tree_tag_set: radix_tree_maxindex(height) is 0
radix_tree_tag_set: height is 0
radix_tree_tag_set: index is 0
radix_tree_tag_set: radix_tree_maxindex(height) is 0
radix_tree_tag_set: height is 0
radix_tree_tag_set: index is 0
radix_tree_tag_set: radix_tree_maxindex(height) is 0
radix_tree_tag_set: height is 0
radix_tree_tag_set: index is 0
radix_tree_tag_set: radix_tree_maxindex(height) is 0
mmap address :0x40135000fb_deferred_io_fault, enter
fb_deferred_io_fault, leave
fb_deferred_io_mkwrite, enter
fb_deferred_io_mkwrite, leave
------------[ cut here ]------------
WARNING: at fs/buffer.c:711 __set_page_dirty+0xbc/0x18c()
Modules linked in: etrackfb_new sony_prs_505
[<c0024198>] (dump_stack+0x0/0x14) from [<c003bf40>] (warn_on_slowpath+0x4c/0x84)
[<c003bef4>] (warn_on_slowpath+0x0/0x84) from [<c00a403c>] (__set_page_dirty+0xbc/0x18c)
r6:c38114b0 r5:c0319b80 r4:c0272114
[<c00a3f80>] (__set_page_dirty+0x0/0x18c) from [<c00a433c>] (__set_page_dirty_buffers+0xbc/0xd0)
r6:c3d01738 r5:00000001 r4:c0319b80
[<c00a4280>] (__set_page_dirty_buffers+0x0/0xd0) from [<c0069dc4>] (set_page_dirty+0x54/0xdc)
[<c0069d70>] (set_page_dirty+0x0/0xdc) from [<c006a8a4>] (set_page_dirty_balance+0x18/0x64)
r5:00000001 r4:c0319b80
[<c006a88c>] (set_page_dirty_balance+0x0/0x64) from [<c0071524>] (__do_fault+0x3b8/0x3f0)
r5:c0319b80 r4:0bd5c0ff
[<c007116c>] (__do_fault+0x0/0x3f0) from [<c0072acc>] (handle_mm_fault+0x2a8/0x3bc)
[<c0072824>] (handle_mm_fault+0x0/0x3bc) from [<c0025be0>] (do_page_fault+0xe8/0x224)
[<c0025af8>] (do_page_fault+0x0/0x224) from [<c00201dc>] (do_DataAbort+0x3c/0xa0)
[<c00201a0>] (do_DataAbort+0x0/0xa0) from [<c00209c0>] (ret_from_exception+0x0/0x10)
Exception stack(0xc3edffb0 to 0xc3edfff8)
ffa0: 40135000 ffffffff 000752f8 40135000
ffc0: becdced4 000086b8 000086c4 00000001 00008520 00000000 4012f000 becdcea8
ffe0: 40089810 becdcd6c 00008670 40089838 20000010 ffffffff
r8:00008520 r7:00000001 r6:000086c4 r5:000086b8 r4:ffffffff
---[ end trace 7cf699b159b0c732 ]---
radix_tree_tag_set: height is 0
radix_tree_tag_set: index is 0
radix_tree_tag_set: radix_tree_maxindex(height) is 0
fb_deferred_io_fault, enter
fb_deferred_io_fault, leave
fb_deferred_io_mkwrite, enter
fb_deferred_io_mkwrite, leave
radix_tree_tag_set: height is 0
radix_tree_tag_set: index is 1
radix_tree_tag_set: radix_tree_maxindex(height) is 0
kernel BUG at lib/radix-tree.c:477!
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c3d3c000
[00000000] *pgd=0bd53031, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [#1]
Modules linked in: etrackfb_new sony_prs_505
CPU: 0 Tainted: G W (2.6.26-00011-g15bc467-dirty #1)
PC is at __bug+0x20/0x2c
LR is at log_wait+0x0/0x8
pc : [<c002418c>] lr : [<c0259200>] psr: 60000093
sp : c3edfda8 ip : c0259200 fp : c3edfdb4
r10: 00000000 r9 : c3edb780 r8 : c38114b4
r7 : 00000001 r6 : c38114b0 r5 : 00000000 r4 : c027ac68
r3 : 00000000 r2 : 00000001 r1 : 00000001 r0 : 00000027
Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
Control: c000717f Table: 0bd3c000 DAC: 00000015
Process framebuff.ko (pid: 215, stack limit = 0xc3ede260)
Stack: (0xc3edfda8 to 0xc3ee0000)
fda0: c3edfde4 c3edfdb8 c010fce4 c002417c 00000000 00000000
fdc0: c0319b60 c38114b0 00000000 40136000 c3edb780 00000000 c3edfe00 c3edfde8
fde0: c00a40d8 c010fc1c c0319b60 00000001 c3d01738 c3edfe10 c3edfe04 c00a433c
fe00: c00a3f90 c3edfe28 c3edfe14 c0069dc4 c00a4290 c0319b60 00000001 c3edfe40
fe20: c3edfe2c c006a8a4 c0069d80 0bd5b0ff c0319b60 c3edfe88 c3edfe44 c0071524
fe40: c006a89c 00000001 c3d3d000 00000001 00000001 00000001 40136000 c0319b60
fe60: 00000000 00001000 00000800 c3d01738 40136000 000004d8 c3edb780 c3edfecc
fe80: c3edfe8c c0072acc c007117c 00000001 00000001 00000000 c3d3d000 c3d01738
fea0: c3c5f800 ffffffff c3d01738 c3c5f800 c3edb7b8 c3edb780 c3edffb0 40136000
fec0: c3edff04 c3edfed0 c0025be0 c0072834 c0151c64 c014c444 00000817 ffffffff
fee0: c0258638 00000817 c3edffb0 40136000 00000000 4012f000 c3edffac c3edff08
ff00: c00201dc c0025b08 00000083 00008520 00000083 4012f000 c3edff44 c025cb4c
ff20: 00000083 c3c12600 00000000 00008520 c3ede000 4012f000 c3edff60 c3edff48
ff40: c005fe38 c005ef6c 00000000 c025cb4c 00000084 c3edff7c c3edff64 c0028bb4
ff60: c005fd28 c025b17c 0000000d c027abb8 c3edff8c c3edff80 c0028c38 c0028b84
ff80: c3edffac c3edff90 c0020048 ffffffff 000086b8 000086c4 00000001 00008520
ffa0: 00000000 c3edffb0 c00209c0 c00201b0 40135000 ffffffff 000742f8 40136000
ffc0: becdced4 000086b8 000086c4 00000001 00008520 00000000 4012f000 becdcea8
ffe0: 40089810 becdcd6c 00008670 40089838 20000010 ffffffff ffffffff ffffffff
Backtrace:
[<c002416c>] (__bug+0x0/0x2c) from [<c010fce4>] (radix_tree_tag_set+0xd8/0x12c)
[<c010fc0c>] (radix_tree_tag_set+0x0/0x12c) from [<c00a40d8>] (__set_page_dirty+0x158/0x18c)
[<c00a3f80>] (__set_page_dirty+0x0/0x18c) from [<c00a433c>] (__set_page_dirty_buffers+0xbc/0xd0)
r6:c3d01738 r5:00000001 r4:c0319b60
[<c00a4280>] (__set_page_dirty_buffers+0x0/0xd0) from [<c0069dc4>] (set_page_dirty+0x54/0xdc)
[<c0069d70>] (set_page_dirty+0x0/0xdc) from [<c006a8a4>] (set_page_dirty_balance+0x18/0x64)
r5:00000001 r4:c0319b60
[<c006a88c>] (set_page_dirty_balance+0x0/0x64) from [<c0071524>] (__do_fault+0x3b8/0x3f0)
r5:c0319b60 r4:0bd5b0ff
[<c007116c>] (__do_fault+0x0/0x3f0) from [<c0072acc>] (handle_mm_fault+0x2a8/0x3bc)
[<c0072824>] (handle_mm_fault+0x0/0x3bc) from [<c0025be0>] (do_page_fault+0xe8/0x224)
[<c0025af8>] (do_page_fault+0x0/0x224) from [<c00201dc>] (do_DataAbort+0x3c/0xa0)
[<c00201a0>] (do_DataAbort+0x0/0xa0) from [<c00209c0>] (ret_from_exception+0x0/0x10)
Exception stack(0xc3edffb0 to 0xc3edfff8)
ffa0: 40135000 ffffffff 000742f8 40136000
ffc0: becdced4 000086b8 000086c4 00000001 00008520 00000000 4012f000 becdcea8
ffe0: 40089810 becdcd6c 00008670 40089838 20000010 ffffffff
r8:00008520 r7:00000001 r6:000086c4 r5:000086b8 r4:ffffffff
Code: e1a01000 e59f000c eb0061f3 e3a03000 (e5833000)
---[ end trace 7cf699b159b0c732 ]---