People depending on the UVM support as available with RTAI/fusion should apply
the following patch (against v0.9.1); it solves a serious bug which usually
bites at thread creation time. The bug affects Xenomai 2.0 as well, so this fix
will be part of Xenomai 2.0.1.
--- fusion-0.9.1/skins/uvm/syscall.c~ 2005-09-09 18:16:02.000000000 +0200
+++ fusion-0.9.1/skins/uvm/syscall.c 2005-10-30 11:22:35.000000000 +0100
@@ -315,8 +315,9 @@
if (!testbits(next->status,XNSTARTED))
{
+ /* First, make sure it won't preempt us. */
+ xnpod_suspend_thread(next,XNSUSP,XN_INFINITE,NULL);
err = xnpod_start_thread(next,0,0,XNPOD_ALL_CPUS,NULL,NULL);
- goto out;
}
xnpod_resume_thread(next,XNSUSP);
--
Philippe.
