Hello,
I=92ve been using buildroot kernel on a AT91RM9200 board and it has been working well. Recently I applied kernel PREEMPT_RT patch to get better interrupt latency and rebuilt the kernel. The kernel halted at the very end of the booting up process:
=85=85. Looking up port of RPC 100003/2 on 192.168.0.80 Looking up port of RPC 100005/1 on 192.168.0.80 VFS: Mounted root (nfs filesystem) on device 0:11. Freeing init memory: 92K
I used statically linked =93hello world=94 application to replace /sbin/ init and it was not called. Anyone got the RT patch working on any other AT91 controllers? Does it need other patches? Any help is greatly appreciated.
--yhu