On 23/06/2021 10:32, jan.som...@dlr.de wrote:
One of our applications for the Zedboard fails with fatal error after the setup of the network stack in libbsd. So far I traced it down to the point that the memory allocation for libbsd overwrites parts of the IMFS of rtems. When opening device files later this will lead to the crash. The backtrace looks like this for the bad allocation looks like this: _Heap_Block_split ../../../../../c/src/../../cpukit/score/src/heap.c:313 0x10dd58 _Heap_Block_allocate_from_begin ../../../../../c/src/../../cpukit/score/src/heap.c:378 0x10dfd6 _Heap_Block_allocate ../../../../../c/src/../../cpukit/score/src/heap.c:465 0x10dfd6 _Heap_Allocate_aligned_with_boundary ../../../../../c/src/../../cpukit/score/src/heapallocate.c:265 0x10e19c rtems_heap_allocate_aligned_with_boundary ../../../../../c/src/../../cpukit/libcsupport/src/malloc_deferred.c:92 0x10962e malloc ../../../../../c/src/../../cpukit/libcsupport/src/malloc.c:39 0x10950e _bsd_malloc ../../rtemsbsd/rtems/rtems-kernel-malloc.c:80 0x170048 [more libbsd] ifconfig ../../freebsd/sbin/ifconfig/ifconfig.c:1024 0x1724fa
You probably have a general memory corruption issue. As a first step I would enable RTEMS_DEBUG = True to enable the heap protection. This could help to debug the issue.
With 1 GiB of RAM, available memory shouldn't be a problem. At the moment we have configured the system with CONFIGURE_UNLIMITED_OBJECTS and CONFIGURE_UNIFIED_WORK_AREAS.
This is fine.
Maybe that is not right in this case. Are there any suggestions how to better configure the system? I found CONFIGURE_MEMORY_OVERHEAD in the docs, but I am not so sure how to use it or if it would help.
No, it would not help. -- embedded brains GmbH Herr Sebastian HUBER Dornierstr. 4 82178 Puchheim Germany email: sebastian.hu...@embedded-brains.de phone: +49-89-18 94 741 - 16 fax: +49-89-18 94 741 - 08 Registergericht: Amtsgericht München Registernummer: HRB 157899 Vertretungsberechtigte Geschäftsführer: Peter Rasmussen, Thomas Dörfler Unsere Datenschutzerklärung finden Sie hier: https://embedded-brains.de/datenschutzerklaerung/ _______________________________________________ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
