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TI8168 always print logs:PVR_K: User requested SGX debug info

Hello, I encountered a problem when I try to reboot system.

TI8168 always prints the following log, so the system can't reboot successfully, SurfaceFlinger starts timed out and  other services are blocked. Why does it happen? I really need your help. Thanks a lot!

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K: User requested SGX debug info

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K: SGX debug (blaze_android_sgx_ogles1_ogles2_GPL sgxddk 18 1.8@789263)

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K: Flip Command Complete Data 0 for display device 1:

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               SRC 0: ROC DevVAddr:0xD800054 ROP:0x4 ROC:0x0, WOC DevVAddr:0xD800044 WOP:0x3 WOC:0x1

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K: SGX Host control:

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (HC-0) 0x00000001 0x0000000C 0x00000000 0x00000001

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (HC-10) 0x00000000 0x00000000 0x0000000A 0x00030D40

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (HC-20) 0x00000065 0x00000004 0x00000000 0x00000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (HC-30) 0x00000006 0x000002DC 0xF269BA80 0x00000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (HC-40) 0x00000000 0x00000000 0x00000000 0x00000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K: SGX TA/3D control:

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-0) 0x0F003000 0x0F003120 0x0F002000 0x00000000

2015-12-09 05:51:18 DEBUG    logcat: hd[0]: libEGL(771): loaded /system/lib/egl/libGLES_android.so

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-10) 0x0F0C0FC0 0x00000001 0x00000002 0x00000001

2015-12-09 05:51:18 DEBUG    logcat: hd[0]: libEGL(771): loaded /system/lib/egl/libEGL_POWERVR_SGX530_125.so

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-20) 0x0F0AE100 0x00000000 0x00000000 0x00000000

2015-12-09 05:51:18 DEBUG    logcat: hd[0]: libEGL(771): loaded /system/lib/egl/libGLESv1_CM_POWERVR_SGX530_125.so

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-30) 0x00000000 0x00000000 0x00000000 0x0F0AE100

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-40) 0x00000000 0x00000000 0x0F0AE100 0x00000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-50) 0x0F00AE80 0x0F0AD4E0 0x00000000 0x0F00AE80

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-60) 0x0F0AD4E0 0x00000000 0x0F00AE80 0x00000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-70) 0x00000000 0x0F00AE80 0x00000000 0x00000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-80) 0x00000000 0x00000000 0x00000000 0x0F000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-90) 0xE41F7000 0x0F0AF300 0x00000000 0x0F08BB40

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-A0) 0x0F0AD4E0 0x00000000 0x0F08BB40 0x00000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-B0) 0x00000000 0x00000000 0x00000000 0x00000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-C0) 0x00000000 0x00000000 0x00000000 0x00000001

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-D0) 0x00000000 0x0F000000 0x8000B000 0x8004B000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-E0) 0x0F004000 0x0F00A420 0x0F00A740 0x00000000

2015-12-09 05:51:18 DEBUG    logcat: hd[0]: libEGL(771): loaded /system/lib/egl/libGLESv2_POWERVR_SGX530_125.so

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-F0) 0x00000000 0x00000000 0x000001BC 0x000001BC

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-100) 0x00000000 0x00000003 0x00000001 0x00000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K:               (T3C-110) 0x00000000 0x00000000 0x00000000 0x00000000

2015-12-09 05:51:18 INFO     klogd: hd[0]: PVR_K: SGX Kernel CCB WO:0x1A RO:0x1A

 

This problem happens not always and I don't know how to reproduce it. Does anyone know how to reproduce it? Any information will be appreciated.

Thanks a lot.

Huigai