Dear all<br><br>Now I try to add some functions and data structures in Fiasco.<br><br>I had added several data structures into &quot;class Context&quot; and implement some functions to manipulate these data structures.<br>
My goal is to add multiple ready queues in Fiasco. So I add the corresponding enqueue function in ready_enqueue() to add the Context into my own ready queue.<br>(But I don&#39;t change the way to choose highest Context, I only add the queue and try the functionality of these queue.)<br>
<br>It seems to be valid for simple environment. But when I load L4Linux and I want to group all threads owned by L4Linux into my ready queue, it got some unpredictable page fault error.<br><br>-------------------------------------------------------------------------------<br>
...<br>mice: PS/2 mouse device common for all mice<br>TCP cubic registered<br>NET: Registered protocol family 17<br>Freeing init memory: 128K<br>init started: BusyBox v1.13.2 (2009-05-13 02:16:43 CST)<br>starting pid 13, tty &#39;/dev/console&#39;: &#39;-/etc/init.d/rcS&#39;<br>
Fiasco BUG: pfa=c0440084 err=400017 pc=f001f14c<br>  --Fiasco BUG: Invalid TCB access (locked)------------------PC: f00080a8<br>[rcS] (10.00) jdb:<br>-------------------------------------------------------------------------------<br>
<br>The error is caused from the enqueue function which changes the data structures in class Context. But the error sometimes happened before l4x.idler0 thread creation, sometimes I can get into shell correctly and error happened when I use unix commands (which creates new thread for this unix commands). The error is unpredictable. <br>
<br>Because the other threads can work correctly, I guest that there are some issues in L4Linux to cause this error from the modification of class Context.<br><br>Can anyone give me any idea? Thanks very much!!<br><br>Best Regards,<br>
Sean<br> <br><br>