Compiler/TDA2PXEVM: HLOS link segmentation fault

Gayatri Dhore

Part Number: TDA2PXEVM

Tool/software: TI C/C++ Compiler

Hello,

I have a link running on a15 core, I am getting following error:

****** Segmentation fault caught ....
Faulty address is 0xc1880000, called from 0x2f277
Totally Obtained 0 stack frames. signal number =11
Signal number = 11, Signal errno = 0
SI code = 1 (Address not mapped to object)
Fault addr = 0xc1880000
[bt] Execution path:

I am not able to figure out the actual memory location or function, is there any memory map available for a15 where to find it?

Also I have observed that when i pass floating point argument to functions from one function to another (2 different files) the values get modified. what might be the reason?

Kindly provide the input on the same!

Regards,

Gayatri

over 5 years ago

0 Gaviraju Doddabettahalli Bettegowda over 5 years ago

TI__Genius 14305 points

Hi,

Build the application in the debug mode then try run with GDB command to know where code is getting a segmentation fault.

Can I know what is the floating point value is passed in the function arguemet & what is the modified value? if possible share the function prototype.

Thanks

Gaviraju

0 Gayatri Dhore over 5 years ago in reply to Gaviraju Doddabettahalli Bettegowda

Intellectual 260 points

Hi Gaviraju,

I built the application in debug mode following is the error:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x9151c450 (LWP 809)]
0xb6cacc38 in __memcpy_neon () at ../sysdeps/arm/armv7/multiarch/memcpy_impl.S:332
332 ../sysdeps/arm/armv7/multiarch/memcpy_impl.S: No such file or directory.
(gdb) [ 49.216549] random: nonblocking pool is initialized

Without debug normal application run gives error:

****** Segmentation fault caught *********

SI code = 1 (Address not mapped to object)

Fault addr = (nil)

[bt] Execution path:

Function argument's incorrect value print issue got resolved as print statements were placed incorrectly.

Regards,

Gayatri

0 Gaviraju Doddabettahalli Bettegowda over 5 years ago in reply to Gayatri Dhore

TI__Genius 14305 points

Thanks for the update!

0 Gayatri Dhore over 5 years ago in reply to Gaviraju Doddabettahalli Bettegowda

Intellectual 260 points

Hi Gaviraju,

The segmentation fault I am getting is still persist, Can you share thoughts about what might be probable issue. It is always giving segmentation fault at location 0xb6e48eef

Faulty address is (nil), called from 0xb6e48eef
Totally Obtained 0 stack frames. signal number =11
Signal number = 11, Signal errno = 0
SI code = 1 (Address not mapped to object)
Fault addr = (nil)
[bt] Execution path:

The a15 llinux kernel ranges from 8000000 to 8400000, 512MB memory is configured for an EVM. Attaching System.map and EVM map file

/cfs-file/__key/communityserver-discussions-components-files/791/6170.EVM_5F00_map.txt

/cfs-file/__key/communityserver-discussions-components-files/791/System_5F00_map.txt

Thank you!

Regards,

Gayatri

0 Gaviraju Doddabettahalli Bettegowda over 4 years ago in reply to Gayatri Dhore

TI__Genius 14305 points

Hi,

>> 0xb6cacc38 in __memcpy_neon () at ../sysdeps/arm/armv7/multiarch/memcpy_impl.S:332

The above line is indicating the error has arrived from the memcpy function. Please make sure the argument passing to the memcpy function is valid or not.

Wherever the memcpy function called in code add the debug prints before & after the memcpy function, to know which memcpy function is causing the issue.

Thanks

Gaviraju

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Compiler/TDA2PXEVM: HLOS link segmentation fault