Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Real time embedded FreeRTOS mailing list 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem TCP & FAT Training




Loading

Data Abort in pvPortMalloc

Posted by saiberion on March 2, 2010
I hope you can point me in the right direction.
I'm in a situation where my AT91SAM7X512 gets stuck in a data abort while using pvPortMalloc. My program is based on the AT91SAm7S256 example with heap2.c with FreeRTOS 4.8.0
This happens at the end of pvPortMalloc where the found block is splitted and the rest is put into the free block list.
Strangely enough the code segment where I get stucked works fine except in one (and mybe one other) case so far. I already tried enlarging configTOTAL_HEAP_SIZE and the task's stack size but had no success.

RE: Data Abort in pvPortMalloc

Posted by MEdwards on March 2, 2010
This could be a memory definition problem in the linker script if it is trying to use RAM that does not exist. It could also be a memory alignment issue (possibly). Why are you using such an old version?

RE: Data Abort in pvPortMalloc

Posted by Konrad Heksel on March 3, 2010
Hi,
Doublecheck, whether using of the previously allocated regions is correct.
I faced similar situation when I used memset() function on lager region than I allocated before.

Regards,
Konrad

RE: Data Abort in pvPortMalloc

Posted by saiberion on March 15, 2010
So, because I needed to get forward I skipped using pvPortMalloc by now and use a big enough array to buffer my data. It might not be a good but working solution.
The reason I used 4.8.0: The project wasn't touched for a long time and I didn't feel the need to upgrade (but meanwhile did).


[ Back to the top ]    [ About FreeRTOS ]    [ Sitemap ]    [ ]




Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2016 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd.. See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.

Latest News:

FreeRTOS V9.0.0 is now available for download.


Free TCP/IP and file system demos for the RTOS


Sponsored Links

⇓ Now With No Code Size Limit! ⇓
⇑ Free Download Without Registering ⇑


FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Renesas Electronics Gold Alliance RTOS Partner.jpg

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Atmel RTOS partner supporting ARM Cortex-M3 and AVR32 microcontrollers

STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Xilinx Microblaze and Zynq partner

Silicon Labs low power RTOS partner

Altera RTOS partner for Nios II and Cortex-A9 SoC

Freescale Alliance RTOS Member supporting ARM and ColdFire microcontrollers

Infineon ARM Cortex-M microcontrollers

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

Cypress RTOS partner supporting ARM Cortex-M3

Fujitsu RTOS partner supporting ARM Cortex-M3 and FM3

Microsemi (previously Actel) RTOS partner supporting ARM Cortex-M3

Atollic Partner

IAR Partner

Keil ARM Partner

Embedded Artists