ENGR00180099 IPU-[MX6DL]: ipu performance test cause kernel dump

ENGR00180099 IPU-[MX6DL]: ipu performance test cause kernel dump

1. under vte test environment, boot up and run  ipu_test.sh 7.
kernel dump occur

kernel BUG at drivers/mxc/ipu3/ipu_device.c:1153!

Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = 80004000
[00000000] *pgd=00000000
Internal error: Oops: 817 [#1] PREEMPT SMP
Modules linked in: ov3640_camera adv7180_tvin ov5640_camera_mipi
	camera_sensor_clock
CPU: 0    Not tainted  (3.0.15-daily-01339-gddc0ae9 #1)
PC is at __bug+0x1c/0x28
LR is at __bug+0x18/0x28
pc : [<80042210>]    lr : [<8004220c>]    psr: 60000013
sp : b41bfc80  ip : c0924000  fp : 00000000
r10: 00000000  r9 : 00000000  r8 : 00000000
r7 : 80a9e0f0  r6 : 80a9e10a  r5 : 00000001  r4 : b46f0800
r3 : 00000000  r2 : 80a4e57c  r1 : 60000093  r0 : 00000038
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c53c7d  Table: 4481404a  DAC: 00000015
Process ipu0_task (pid: 400, stack limit = 0xb41be2f0)
Stack: (0xb41bfc80 to 0xb41c0000)
fc80: 80a9a180 8036fe24 b46f0800 00000000 60000013 b41be000 b46f0800 80373750
fca0: b41bfcd4 80065104 b418aadc 80096598 b418a8ac 60000013 00000000 b418a7e0
fcc0: b41bfcdc b418a7e8 80a4e598 8006a814 b418a7e0 80065268 00000000 00000094
fce0: 00000000 60000013 b41be000 b46f0800 00000000 00000000 00000000 803742e8
fd00: 00000000 b41bfd04 b41bfd04 00000000 00000000 00000000 00000000 00000000
fd20: 00000000 b41be000 00000001 00000000 00000000 b41bfd34 b41bfd34 00000000
fd40: 00000000 00000000 00000001 00000000 00000000 b41bfd54 b41bfd54 00000000
fd60: b41bfd60 b41bfd60 00000000 b4198474 00000000 800f9a34 00000000 800f8f4c
fd80: 00000000 b2000170 b41bfe18 b2001088 80a3bcfc b2000194 b2010bfc b2010bb0
fda0: b41bfeb8 800f86d0 00000000 b41bfe24 b41bfe34 b41bfeb8 00000000 b2000194
fdc0: b2010bb0 00000000 b2001088 800f6e00 b400f0a0 b41bfe18 b2010bb0 b2001088
fde0: b41bfe36 b41bff17 ffffffff b41bff24 b41bfe36 b41bff17 ffffffff b41bff24
fe00: 0000002f b41bff24 00000002 00000003 0000000a ffffffff 00000000 00000000
fe20: 00000000 00000000 b2010bb0 b4114700 b400faa0 39316240 ffffff33 b41be000
fe40: b41be000 b41bff80 00000000 800e69fc 80a3bcc0 8005dc90 80a7b8ec ffffffff
fe60: b4050000 00000002 00000000 80087e2c 00003e80 00000000 b4189998 8c008f90
fe80: 28345a72 b41bfeac 00003e80 00000000 b4189960 8c008f90 b4189960 8c008f90
fea0: 80a7b8ec ffffffff b4126000 00000002 00000000 80087e2c 80a3bcc0 8005dc90
fec0: 0000091d 00000000 b418a818 8c008f90 299c8c15 b41bfefc b418a818 8c008f90
fee0: b418a820 8005c700 00000000 8c008f90 b418a818 b418a818 b41bff14 8005e1d8
ff00: 00000002 8c008f40 b418a7e0 b41be000 b41bffc4 804ba600 8c008f40 b4040000
ff20: b41bff44 8005f920 b4040000 8c008f40 80037f40 80037f40 800371b4 80037f40
ff40: 80037f40 80037f40 800371b4 80037f40 b4189960 b403fe38 80064f14 00000001
ff60: b403fe44 00000000 00000000 00000003 b41bffa4 8005bec0 ffffffff 00000000
ff80: b4040000 00000000 b418a7e0 80082ebc b41bff90 b41bff90 00000031 803741e5
ffa0: 00000013 b403fe28 80a9e138 803741e4 00000013 00000000 00000000 00000000
ffc0: 00000000 80082898 8003fa08 00000000 80a9e138 00000000 00000000 00000000
ffe0: b41bffe0 b41bffe0 b403fe28 80082818 8003fa08 8003fa08 00000000 00000000
[<80042210>] (__bug+0x1c/0x28) from [<8036fe24>] (_get_vdoa_ipu_res+0x23c/0x25c)
[<8036fe24>] (_get_vdoa_ipu_res+0x23c/0x25c) from [<80373750>]
	(get_res_do_task+0x10/0x458)
[<80373750>] (get_res_do_task+0x10/0x458) from [<803742e8>]
	(ipu_task_thread+0x104/0xa60)
[<803742e8>] (ipu_task_thread+0x104/0xa60) from [<80082898>] (kthread+0x80/0x88)
[<80082898>] (kthread+0x80/0x88) from [<8003fa08>] (kernel_thread_exit+0x0/0x8)
Code: e59f0010 e1a01003 eb11d231 e3a03000 (e5833000)

---[ end trace db719a475f81b6f8 ]---

Signed-off-by: Wayne Zou <b36644@freescale.com>