Data Aborts, unexpected results, crashes!
Posted by Janaka
on January 12, 2006
First of all let me say that FreeRTOS is a Great project!
Problem: I was doing some USB stuff on a AT91SAM7S64 when I was getting Data Aborts (dabtvec), Prefech Aborts (pabtvec) and other unexpected results and eventual crashes (hangups).
Lack of task stack space. I was setting the task stacks to 100 (in SAM7 it is 100x4 bytes). My estimations of local variable calculations were correct BUT the GOTCHA was the functional depth. I totally ignored the stack usage when functions are called. As you get deeper it uses more stack to store your parameters etc.
Increased the stack size. Its working like a charm since then!
RE: Data Aborts, unexpected results, crashes!
Posted by Nobody/Anonymous
on January 13, 2006
Thanks for the feedback.
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.