I’m trying to prototype a camera server in Python and GStreamer (0.10, I know) that displays multiple cameras with both a local stream, as well as pushing out an h264 stream for remote viewing. However, I’m experiencing an issue where my Jetson dev kit will sometimes hang the entire system (requiring a power cycle). To make the issue more fun, it seems to render the serial port unavailable for debugging. In addition, until recently, I’ve been unable to find anything in the logs I’ve scoured to suggest what might be the cause. Once I started pushing the syslog to a syslog server, I started to get a bit of information (perhaps it wasn’t yet written to disk when push wasn’t setup).
I’m trying to replicate the issue with a script, but so far am not having much luck. So, I thought I’d check here to see if anyone might have any possible ideas as to what could be going on. Also, I should mention I’m new to working with the GPU, so I may be doing something foolish (I use the GPU in multiple Python threads, which I am unsure if that’s safe). From the logs, it looks like the hw encoder is getting stuck, but not entirely certain. And if that’s the case, I’m not certain why.
Below is an example of the GStreamer pipeline, along with the only clue I’ve found in the log. All thoughts, ideas and advice are extremely welcome.
L4T 19.3
CUDA 6 (cuda-repo-l4t-r19.2_6.0-42_armhf.deb)
OpenCV4Tegra v2.4.8.2 (libopencv4tegra_2.4.8.2_armhf.deb, libopencv4tegra-dev_2.4.8.2_armhf.deb)
Python 2.7.6
GStreamer 0.10
Example pipeline:
gst-launch v4l2src device=/dev/video0 queue-size=8 decimate=2
! videorate max-rate=15
! image/jpeg,width=1024,height=768
! jpegdec
! ‘video/x-raw-yuv,format=(fourcc)I420,width=1024,height=768’
! tee name=rawdattee
! queue max-size-buffers=5
! appsink max-buffers=1 emit-signals=true rawdattee.
! queue max-size-buffers=15 leaky=2
! nv_omx_h264enc temporal-tradeoff=0 bit-packetization=true bitrate=300000 rc-mode=0
! video/x-h264,stream-format=byte-stream
! h264parse
! flvmux streamable=true
! rtmpsink max-lateness=3000000000 location=rtmp://TARGET_IP:TARGET_PORT/STREAM
Kernel log:
INFO | ps_stats = {‘pid’: 1057, ‘cpu’: 146, ‘mem’: 28.1, ‘vsz’: 756880, ‘rss’: 503084, ‘stat’: Sl, ‘time’: 2051:45}
kernel:[83979.090984] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147481647
kernel:[83979.091015] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[83979.091034] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[83979.091058] host1x host1x: id 18 (vic) min 12 max 12
kernel:[83979.091074] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[83979.091090] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[83979.091104] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[83979.091119] host1x host1x: id 26 (vblank0) min 5030735 max 0
kernel:[83979.091133] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[83979.091149] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[83981.090952] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147479647
kernel:[83981.090983] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[83981.091001] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[83981.091025] host1x host1x: id 18 (vic) min 12 max 12
kernel:[83981.091041] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[83981.091057] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[83981.091071] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[83981.091087] host1x host1x: id 26 (vblank0) min 5030855 max 0
kernel:[83981.091544] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[83981.091562] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[83983.090951] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147477647
kernel:[83983.090982] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[83983.091001] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[83983.091025] host1x host1x: id 18 (vic) min 12 max 12
kernel:[83983.091041] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[83983.091058] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[83983.091072] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[83983.091087] host1x host1x: id 26 (vblank0) min 5030975 max 0
kernel:[83983.091101] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[83983.091118] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[83985.091006] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147475647
kernel:[83985.091038] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[83985.091284] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[83985.091309] host1x host1x: id 18 (vic) min 12 max 12
kernel:[83985.091325] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[83985.091341] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[83985.091356] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[83985.091370] host1x host1x: id 26 (vblank0) min 5031094 max 0
kernel:[83985.091384] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[83985.091400] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[83987.090969] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147473647
kernel:[83987.091000] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[83987.091019] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[83987.091043] host1x host1x: id 18 (vic) min 12 max 12
kernel:[83987.091059] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[83987.091075] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[83987.091089] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[83987.091104] host1x host1x: id 26 (vblank0) min 5031214 max 0
kernel:[83987.091118] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[83987.091135] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[83987.113963] ---- mlocks ----
kernel:[83987.113987] 0: unlocked
kernel:[83987.114001] 1: unlocked
kernel:[83987.114012] 2: unlocked
kernel:[83987.114024] 3: unlocked
kernel:[83987.114035] 4: unlocked
kernel:[83987.114045] 5: unlocked
kernel:[83987.114056] 6: unlocked
kernel:[83987.114066] 7: unlocked
kernel:[83987.114077] 8: unlocked
kernel:[83987.114087] 9: unlocked
kernel:[83987.114099] 10: unlocked
kernel:[83987.114109] 11: unlocked
kernel:[83987.114121] 12: unlocked
kernel:[83987.114131] 13: unlocked
kernel:[83987.114143] 14: unlocked
kernel:[83987.114153] 15: unlocked
kernel:[83987.114163]
kernel:[83987.114176] ---- syncpts ----
kernel:[83987.114196] id 5 (disp0d) min 1 max 0
kernel:[83987.114213] id 8 (disp0) min 1 max 0
kernel:[83987.114241] id 18 (vic) min 12 max 12
kernel:[83987.114257] id 20 (disp0b) min 1 max 0
kernel:[83987.114274] id 23 (mpe) min 1018987 max 1018988
kernel:[83987.114287] id 24 (disp0c) min 1 max 0
kernel:[83987.114302] id 26 (vblank0) min 5031216 max 0
kernel:[83987.114315] id 27 (vblank1) min 8 max 0
kernel:[83987.114333] id 31 (dsi) min 3 max 0
kernel:[83987.114680]
kernel:[83987.114691] ---- channels ----
kernel:[83987.114706] 4: fifo:
kernel:[83987.114719] FIFOSTAT 80100840
kernel:[83987.114719] [empty]
kernel:[83987.114738] 4-msenc (1): active class 21, offset 0000, val 00000117
kernel:[83987.114762] DMAPUT 80000a20, DMAGET 80000a20, DMACTL 00000000
kernel:[83987.114774] CBREAD 00000117, CBSTAT 00210000
kernel:[83987.114795]
kernel:[83987.114795] f18c0000: JOB, syncpt_id=23, syncpt_val=1018988, first_get=80000a08, timeout=10000, ctx= (null), num_slots=3, num_handles=12
kernel:[83987.114838] GATHER at 800e4000+0638, 57 words
kernel:[83987.114850] 00000840 100b0001 00000013 10100002 000001c0 12001103 10100002 000001c1 000f8c6b 10100002 00000080 00000001 10100002 000001c4 00800ad0 10100002 000001c6 00821000 10100002 000001c9 00800bd0 10100002 000001c7 00827000 10100002 000001cd 00815000 10100002 000001d0 00815e00 10100002 000001d1 00816200 10100002 000001cb 00804c00 10100002 000001cc 0082a000 10100002 000001c5 00803480 10100002 000001ce 00800f40 10100002 000001cf 00800ec0 10100002 00000100 0081f000 10100002 00000101 0082a000 10100002 000000c0 00000100
kernel:[83987.115413] GATHER at 800e4000+071c, 2 words
kernel:[83987.115424] 20000001 00000117
kernel:[83987.115445]
kernel:[83987.118305] 5: fifo:
kernel:[83987.118325] FIFOSTAT 80100840
kernel:[83987.118325] [empty]
kernel:[83987.118346] 5-tsec (0): inactive
kernel:[83987.118346]
kernel:[83987.118633] 0: fifo:
kernel:[83987.118649] FIFOSTAT 80100840
kernel:[83987.118649] [empty]
kernel:[83987.118667] 0-isp.0 (0): inactive
kernel:[83987.118667]
kernel:[83987.118717] 1: fifo:
kernel:[83987.118730] FIFOSTAT 80100840
kernel:[83987.118730] [empty]
kernel:[83987.118748] 1-isp.1 (0): inactive
kernel:[83987.118748]
kernel:[83987.118782] 7: fifo:
kernel:[83987.118795] FIFOSTAT 80100840
kernel:[83987.118795] [empty]
kernel:[83987.118812] 7-vic03.0 (0): inactive
kernel:[83987.118812]
kernel:[83987.120665] tegra_simon_gpu_grading_cb: graded gpu: v = 800, t = 39000, grade = 0
kernel:[83987.140008] gk20a.0 pbdma 0: id: 0 (channel), next_id: 56 (channel) status: invalid
kernel:[83987.140052] PUT: 000000deb56feefc GET: 000000fdffeffffc FETCH: 8311b4e5 HEADER: e1d73fda
kernel:[83987.140067]
kernel:[83987.140080] gk20a.0 eng 0: id: 0 (channel), next_id: 0 (channel), ctx: invalid
kernel:[83987.140106] gk20a.0 eng 1: id: 0 (channel), next_id: 0 (channel), ctx: invalid
kernel:[83987.140130]
kernel:[83987.140319] 2: fifo:
kernel:[83987.140334] FIFOSTAT 80100840
kernel:[83987.140334] [empty]
kernel:[83987.140352] 2-vi.0 (0): inactive
kernel:[83987.140352]
kernel:[83987.140538] 3: fifo:
kernel:[83987.140552] FIFOSTAT 80100840
kernel:[83987.140552] [empty]
kernel:[83987.140569] 3-vi (0): inactive
kernel:[83987.140569]
kernel:[83989.090981] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147471647
kernel:[83989.091012] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[83989.091030] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[83989.091054] host1x host1x: id 18 (vic) min 12 max 12
kernel:[83989.091069] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[83989.091086] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[83989.091100] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[83989.091116] host1x host1x: id 26 (vblank0) min 5031334 max 0
kernel:[83989.091129] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[83989.091146] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[83991.091210] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147469647
kernel:[83991.091242] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[83991.091260] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[83991.091284] host1x host1x: id 18 (vic) min 12 max 12
kernel:[83991.091526] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[83991.091544] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[83991.091558] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[83991.091574] host1x host1x: id 26 (vblank0) min 5031454 max 0
kernel:[83991.091588] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[83991.091604] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[83993.090990] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147467647
kernel:[83993.091021] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[83993.091039] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[83993.091064] host1x host1x: id 18 (vic) min 12 max 12
kernel:[83993.091080] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[83993.091096] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[83993.091110] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[83993.091125] host1x host1x: id 26 (vblank0) min 5031574 max 0
kernel:[83993.091139] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[83993.091155] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[83995.091217] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147465647
kernel:[83995.091249] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[83995.091267] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[83995.091291] host1x host1x: id 18 (vic) min 12 max 12
kernel:[83995.091307] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[83995.091324] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[83995.091338] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[83995.091353] host1x host1x: id 26 (vblank0) min 5031694 max 0
kernel:[83995.091366] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[83995.091383] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[83997.091019] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147463647
kernel:[83997.091050] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[83997.091068] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[83997.091092] host1x host1x: id 18 (vic) min 12 max 12
kernel:[83997.091109] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[83997.091125] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[83997.091139] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[83997.091155] host1x host1x: id 26 (vblank0) min 5031813 max 0
kernel:[83997.091168] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[83997.091185] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[83997.162052] ---- mlocks ----
kernel:[83997.162076] 0: unlocked
kernel:[83997.162089] 1: unlocked
kernel:[83997.162101] 2: unlocked
kernel:[83997.162113] 3: unlocked
kernel:[83997.162124] 4: unlocked
kernel:[83997.162134] 5: unlocked
kernel:[83997.162146] 6: unlocked
kernel:[83997.162157] 7: unlocked
kernel:[83997.162167] 8: unlocked
kernel:[83997.162180] 9: unlocked
kernel:[83997.162190] 10: unlocked
kernel:[83997.162200] 11: unlocked
kernel:[83997.162210] 12: unlocked
kernel:[83997.162222] 13: unlocked
kernel:[83997.162234] 14: unlocked
kernel:[83997.162244] 15: unlocked
kernel:[83997.162255]
kernel:[83997.162265] ---- syncpts ----
kernel:[83997.162289] id 5 (disp0d) min 1 max 0
kernel:[83997.162307] id 8 (disp0) min 1 max 0
kernel:[83997.162335] id 18 (vic) min 12 max 12
kernel:[83997.162351] id 20 (disp0b) min 1 max 0
kernel:[83997.162369] id 23 (mpe) min 1018987 max 1018988
kernel:[83997.162384] id 24 (disp0c) min 1 max 0
kernel:[83997.162398] id 26 (vblank0) min 5031818 max 0
kernel:[83997.162412] id 27 (vblank1) min 8 max 0
kernel:[83997.162429] id 31 (dsi) min 3 max 0
kernel:[83997.162792]
kernel:[83997.162803] ---- channels ----
kernel:[83997.162818] 4: fifo:
kernel:[83997.162832] FIFOSTAT 80100840
kernel:[83997.162832] [empty]
kernel:[83997.162852] 4-msenc (1): active class 21, offset 0000, val 00000117
kernel:[83997.162875] DMAPUT 80000a20, DMAGET 80000a20, DMACTL 00000000
kernel:[83997.162889] CBREAD 00000117, CBSTAT 00210000
kernel:[83997.162910]
kernel:[83997.162910] f18c0000: JOB, syncpt_id=23, syncpt_val=1018988, first_get=80000a08, timeout=10000, ctx= (null), num_slots=3, num_handles=12
kernel:[83997.162971] GATHER at 800e4000+0638, 57 words
kernel:[83997.162982] 00000840 100b0001 00000013 10100002 000001c0 12001103 10100002 000001c1 000f8c6b 10100002 00000080 00000001 10100002 000001c4 00800ad0 10100002 000001c6 00821000 10100002 000001c9 00800bd0 10100002 000001c7 00827000 10100002 000001cd 00815000 10100002 000001d0 00815e00 10100002 000001d1 00816200 10100002 000001cb 00804c00 10100002 000001cc 0082a000 10100002 000001c5 00803480 10100002 000001ce 00800f40 10100002 000001cf 00800ec0 10100002 00000100 0081f000 10100002 00000101 0082a000 10100002 000000c0 00000100
kernel:[83997.163477] GATHER at 800e4000+071c, 2 words
kernel:[83997.163487] 20000001 00000117
kernel:[83997.163512]
kernel:[83997.164837] 5: fifo:
kernel:[83997.164854] FIFOSTAT 80100840
kernel:[83997.164854] [empty]
kernel:[83997.164876] 5-tsec (0): inactive
kernel:[83997.164876]
kernel:[83997.165018] 0: fifo:
kernel:[83997.165032] FIFOSTAT 80100840
kernel:[83997.165032] [empty]
kernel:[83997.165049] 0-isp.0 (0): inactive
kernel:[83997.165049]
kernel:[83997.165097] 1: fifo:
kernel:[83997.165118] FIFOSTAT 80100840
kernel:[83997.165118] [empty]
kernel:[83997.165135] 1-isp.1 (0): inactive
kernel:[83997.165135]
kernel:[83997.165166] 7: fifo:
kernel:[83997.165196] FIFOSTAT 80100840
kernel:[83997.165196] [empty]
kernel:[83997.165212] 7-vic03.0 (0): inactive
kernel:[83997.165212]
kernel:[83997.173595] gk20a.0 pbdma 0: id: 0 (channel), next_id: 56 (channel) status: invalid
kernel:[83997.173636] PUT: 000000deb5efeefc GET: 000000fdffeffffc FETCH: 8311b4e5 HEADER: e1d73fda
kernel:[83997.173649]
kernel:[83997.173661] gk20a.0 eng 0: id: 0 (channel), next_id: 0 (channel), ctx: invalid
kernel:[83997.173686] gk20a.0 eng 1: id: 0 (channel), next_id: 0 (channel), ctx: invalid
kernel:[83997.173711]
kernel:[83997.174019] 2: fifo:
kernel:[83997.174041] FIFOSTAT 80100840
kernel:[83997.174041] [empty]
kernel:[83997.174063] 2-vi.0 (0): inactive
kernel:[83997.174063]
kernel:[83997.174313] 3: fifo:
kernel:[83997.174328] FIFOSTAT 80100840
kernel:[83997.174328] [empty]
kernel:[83997.174347] 3-vi (0): inactive
kernel:[83997.174347]
kernel:[83997.174467] host1x host1x: cdma_timeout_handler: timeout: 23 (mpe) ctx 0x (null), HW thresh 1018987, done 1018988
kernel:[83999.687232] [sched_delayed] sched: RT throttling activated
kernel:[84003.208880] Host read timeout at address 544c1118
kernel:[84003.718187] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147461647
kernel:[84003.718213] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[84003.718226] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[84003.718257] host1x host1x: id 18 (vic) min 12 max 12
kernel:[84003.718267] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[84003.718279] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[84003.718288] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[84003.718298] host1x host1x: id 26 (vblank0) min 5032211 max 0
kernel:[84003.718307] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[84003.718319] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[84003.720251] Host read timeout at address 544c104c
kernel:[84006.236783] host1x host1x: python: syncpoint id 23 (mpe) stuck waiting 1018988, timeout=2147459647
kernel:[84006.236806] host1x host1x: id 5 (disp0d) min 1 max 0
kernel:[84006.236820] host1x host1x: id 8 (disp0) min 1 max 0
kernel:[84006.236843] host1x host1x: id 18 (vic) min 12 max 12
kernel:[84006.236854] host1x host1x: id 20 (disp0b) min 1 max 0
kernel:[84006.236882] host1x host1x: id 23 (mpe) min 1018987 max 1018988
kernel:[84006.236892] host1x host1x: id 24 (disp0c) min 1 max 0
kernel:[84006.236907] host1x host1x: id 26 (vblank0) min 5032361 max 0
kernel:[84006.236916] host1x host1x: id 27 (vblank1) min 8 max 0
kernel:[84006.236927] host1x host1x: id 31 (dsi) min 3 max 0
kernel:[84006.237226] tegra-i2c tegra12-i2c.0: — register dump for debugging ----
kernel:[84006.238907] uvcvideo: Non-zero status (-75) in status completion handler.
kernel:[84006.239041] Host read timeout at address 544c104c
kernel:[84006.243287] uvcvideo: Non-zero status (-75) in status completion handler.
kernel:[84006.751383] tegra-i2c tegra12-i2c.0: I2C_CNFG - 0x2c00
kernel:[84006.751388] tegra-i2c tegra12-i2c.0: I2C_PACKET_TRANSFER_STATUS - 0xff0001
kernel:[84006.751392] tegra-i2c tegra12-i2c.0: I2C_FIFO_CONTROL - 0xe0
kernel:[84006.751397] tegra-i2c tegra12-i2c.0: I2C_FIFO_STATUS - 0x800080
kernel:[84006.751401] tegra-i2c tegra12-i2c.0: I2C_INT_MASK - 0xec