Segment fault error == SIGSIVG error

[dldldlfma]

Hello! I have a question!

When i start the C simulation, error is occur at line number 94 in fpga_top.cpp

Error message is below.

CPU: Offload CONV Layer c10/p1: 8x8 x 736 > 512, CONV (1x1)/1 , IN @mem(13295616-13484032B), OUT @mem(13484032B), WEIGHTS @mem( 7096448- 8605824B) (split1) GLOBAL POOL FPGA: Computing .*stopped,reason="end-stepping-range",frame={addr="0x0000000000406d90",func="fpga_top",args=[{name="layer",value="..."},{name="SHARED_DRAM",value="0x38af040"},{name="weights_offset",value="0"},{name="num_weights",value="..."},{name="input_offset",value="2528800"}],file="../../../../fpga_top.cpp",fullname="C:\Users\ksg\Documents\GitHub\zynqnet_HLS_CODE\fpga_top.cpp",line="101"},thread-id="1",stopped-threads="all"

How can i solve it? I don't know how can i go to next step.

when i run the csim.exe in my project path which is below. C:\Users\ksg\Documents\GitHub\zynqnet_HLS_CODE\zynqnet_ksg\solution1\csim\build\csim.exe

the error is occur again like below

CPU: FPGA DRAM Memory Allocation: Bytes allocated: 0B (config) + 9878KB (weights) + 13296KB (data) CPU: Copy Config + Weights to FPGA DRAM: 0B (config) + 9878KB (weights) CPU: Loading Input from File ./indata.bin, 768 kBytes. CPU: Copy Input Data: 768KB (input image) CPU: Offload CONV Layer c1 : 256x256 x 3 > 64 , CONV (3x3)/2p + ReLU, IN @mem( 0- 786432B), OUT @mem( 786432B), WEIGHTS @mem( 0- 7168B) FPGA: Computing ................................................................................................................................................................................................................................................................ done. CPU: Offload CONV Layer f2/s3 : 128x128 x 64 > 16 , CONV (3x3)/2p + ReLU, IN @mem( 786432- 4980736B), OUT @mem( 4980736B), WEIGHTS @mem( 7168- 44096B) FPGA: Computing ................................................................................................................................ done. CPU: Offload CONV Layer f2/e1 : 64x64 x 16 > 64 , CONV (1x1)/1 + ReLU, IN @mem( 4980736- 5242880B), OUT @mem( 5242880B), WEIGHTS @mem( 44096- 48448B) (split1) FPGA: Computing ................................................................ done. CPU: Offload CONV Layer f2/e3 : 64x64 x 16 > 64 , CONV (3x3)/1p + ReLU, IN @mem( 4980736- 5242880B), OUT @mem( 5243136B), WEIGHTS @mem( 48448- 85568B) (split2) FPGA: Computing ................................................................ done. CPU: Offload CONV Layer f3/s1 : 64x64 x 128 > 16 , CONV (1x1)/1 + ReLU, IN @mem( 5242880- 7340032B), OUT @mem( 7340032B), WEIGHTS @mem( 85568- 93824B) FPGA: Computing ................................................................ done. CPU: Offload CONV Layer f3/e1 : 64x64 x 16 > 64 , CONV (1x1)/1 + ReLU, IN @mem( 7340032- 7602176B), OUT @mem( 7602176B), WEIGHTS @mem( 93824- 98176B) (split1) FPGA: Computing ................................................................ done. CPU: Offload CONV Layer f3/e3 : 64x64 x 16 > 64 , CONV (3x3)/1p + ReLU, IN @mem( 7340032- 7602176B), OUT @mem( 7602432B), WEIGHTS @mem( 98176- 135296B) (split2) FPGA: Computing ................................................................ done. CPU: Offload CONV Layer f4/s3 : 64x64 x 128 > 32 , CONV (3x3)/2p + ReLU, IN @mem( 7602176- 9699328B), OUT @mem( 9699328B), WEIGHTS @mem( 135296- 282880B) FPGA: Computing ................................................................ done. CPU: Offload CONV Layer f4/e1 : 32x32 x 32 > 128, CONV (1x1)/1 + ReLU, IN @mem( 9699328- 9830400B), OUT @mem( 9830400B), WEIGHTS @mem( 282880- 299776B) (split1) FPGA: Computing ................................ done. CPU: Offload CONV Layer f4/e3 : 32x32 x 32 > 128, CONV (3x3)/1p + ReLU, IN @mem( 9699328- 9830400B), OUT @mem( 9830912B), WEIGHTS @mem( 299776- 447744B) (split2) FPGA: Computing ................................ done. CPU: Offload CONV Layer f5/s1 : 32x32 x 256 > 32 , CONV (1x1)/1 + ReLU, IN @mem( 9830400-10878976B), OUT @mem(10878976B), WEIGHTS @mem( 447744- 480640B) FPGA: Computing ................................ done. CPU: Offload CONV Layer f5/e1 : 32x32 x 32 > 128, CONV (1x1)/1 + ReLU, IN @mem(10878976-11010048B), OUT @mem(11010048B), WEIGHTS @mem( 480640- 497536B) (split1) FPGA: Computing ................................ done. CPU: Offload CONV Layer f5/e3 : 32x32 x 32 > 128, CONV (3x3)/1p + ReLU, IN @mem(10878976-11010048B), OUT @mem(11010560B), WEIGHTS @mem( 497536- 645504B) (split2) FPGA: Computing ................................ done. CPU: Offload CONV Layer f6/s3 : 32x32 x 256 > 64 , CONV (3x3)/2p + ReLU, IN @mem(11010048-12058624B), OUT @mem(12058624B), WEIGHTS @mem( 645504- 1235584B) FPGA: Computing ................................ done. CPU: Offload CONV Layer f6/e1 : 16x16 x 64 > 256, CONV (1x1)/1 + ReLU, IN @mem(12058624-12124160B), OUT @mem(12124160B), WEIGHTS @mem( 1235584- 1302144B) (split1) FPGA: Computing ................ done. CPU: Offload CONV Layer f6/e3 : 16x16 x 64 > 256, CONV (3x3)/1p + ReLU, IN @mem(12058624-12124160B), OUT @mem(12125184B), WEIGHTS @mem( 1302144- 1892992B) (split2) FPGA: Computing ................ done. CPU: Offload CONV Layer f7/s1 : 16x16 x 512 > 64 , CONV (1x1)/1 + ReLU, IN @mem(12124160-12648448B), OUT @mem(12648448B), WEIGHTS @mem( 1892992- 2024320B) FPGA: Computing ................ done. CPU: Offload CONV Layer f7/e1 : 16x16 x 64 > 192, CONV (1x1)/1 + ReLU, IN @mem(12648448-12713984B), OUT @mem(12713984B), WEIGHTS @mem( 2024320- 2074240B) (split1) FPGA: Computing ................ done. CPU: Offload CONV Layer f7/e3 : 16x16 x 64 > 192, CONV (3x3)/1p + ReLU, IN @mem(12648448-12713984B), OUT @mem(12714752B), WEIGHTS @mem( 2074240- 2517376B) (split2) FPGA: Computing ................ done. CPU: Offload CONV Layer f8/s3 : 16x16 x 384 > 112, CONV (3x3)/2p + ReLU, IN @mem(12713984-13107200B), OUT @mem(13107200B), WEIGHTS @mem( 2517376- 4066112B) FPGA: Computing ................ done. CPU: Offload CONV Layer f8/e1 : 8x8 x 112 > 256, CONV (1x1)/1 + ReLU, IN @mem(13107200-13135872B), OUT @mem(13135872B), WEIGHTS @mem( 4066112- 4181824B) (split1) FPGA: Computing ........ done. CPU: Offload CONV Layer f8/e3 : 8x8 x 112 > 256, CONV (3x3)/1p + ReLU, IN @mem(13107200-13135872B), OUT @mem(13136896B), WEIGHTS @mem( 4181824- 5215040B) (split2) FPGA: Computing ........ done. CPU: Offload CONV Layer f9/s1 : 8x8 x 512 > 112, CONV (1x1)/1 + ReLU, IN @mem(13135872-13266944B), OUT @mem(13266944B), WEIGHTS @mem( 5215040- 5444864B) FPGA: Computing ........ done. CPU: Offload CONV Layer f9/e1 : 8x8 x 112 > 368, CONV (1x1)/1 + ReLU, IN @mem(13266944-13295616B), OUT @mem(13295616B), WEIGHTS @mem( 5444864- 5611200B) (split1) FPGA: Computing ........ done. CPU: Offload CONV Layer f9/e3 : 8x8 x 112 > 368, CONV (3x3)/1p + ReLU, IN @mem(13266944-13295616B), OUT @mem(13297088B), WEIGHTS @mem( 5611200- 7096448B) (split2) FPGA: Computing ........ done. CPU: Offload CONV Layer c10/p1: 8x8 x 736 > 512, CONV (1x1)/1 , IN @mem(13295616-13484032B), OUT @mem(13484032B), WEIGHTS @mem( 7096448- 8605824B) (split1) GLOBAL POOL FPGA: Computing .....Segmentation fault

How can i solve it?

I look forward to your comment.

Thank you!

[dgschwend]

Have you tried increasing the SHARED_DRAM size as suggested in https://github.com/dgschwend/zynqnet/issues/52?

[dldldlfma]

Thank you for your response.

i fixed SHARED_DRAM size in cpu_top.cpp file at line number 207.

SHARED_DRAM = (char )malloc(total_size); => SHARED_DRAM = (char )malloc(total_size * 2 ** );

and it's working!

Thank you so much!

[shawn-wwx]

hello, guys! I met the same problem and I tried to change SHARED_DRAM to twice as it was, but it doesn't work as I expected and there is still sigsegv error. is there any other possible reason or solution? Thanks a lot!

[ihaterecursion]

hello, guys! I met the same problem and I tried to change SHARED_DRAM to twice as it was, but it doesn't work as I expected and there is still sigsegv error. is there any other possible reason or solution? Thanks a lot!

you can try to delete “blobs/” in fpga_top.cpp