Re: AW: [Xenomai-help] resubmission : memset of heap crashes Xenomai-Task

[Jan Kiszka <jan.kiszka@domain.hid>]

[-- Attachment #1: Type: text/plain, Size: 905 bytes --]

Wolfgang Grandegger wrote:
> ...
> I was able to reproduce the problem on my MPC5200 system some time ago
> and I have checked the index "i" as well. "i" was not out-of-range,
> IIRC. The problem only shows up on PowerPC., at least Jan was unable
> to reproduce it on a x86 system. How could we debug the seg fault. Do
> you have a good idea? Would the IPIPE tracer help?

First of all, do we know where the demo precisely faults? In which
heap's memset? We could then analyse how this heap is being set up in
the kernel, if all mappings are done as expected, if reasonable address
are passed to the user, etc.

I may have my hands on a 405 board on Friday, but I'm not sure if I can
do much more testing than a simple run of the program. Of course,
testing will primarily take place over latest Xenomai...

Roderik, you said you tested under Qemu as well? For PPC or x86 arch?

Jan


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 250 bytes --]