diff --git a/configs/sama5d4-ek/README.txt b/configs/sama5d4-ek/README.txt index 1c612e1b3b..084c09e0b2 100644 --- a/configs/sama5d4-ek/README.txt +++ b/configs/sama5d4-ek/README.txt @@ -3930,23 +3930,10 @@ Configurations file system. A considerable amount of testing has been done and there are no known defects as of this writing. - 2014-9-13: Currently a program running as a process in the kernel build - mode cannot run other programs that reside on the file system. Why? - Because in order to run those other programs, the new program's - address environment must be instantiated in memory to load the .text - and .data and to allocate the initial user space components from the - new user heap. - - However, the previous program's stack currently resides in its heap. - So when a process tries to run another program, its heap is unmapped - and the system crashes. The fix is to add a separate stack in a - separate memory region that does not get unmapped when creating new - processes. There are hooks in place to do this; I just need to get - time to get that done. - - To see the bug in action: - - nsh> /bin/hello + 2014-9-16: After some substantial effort, I think I may have resolved + the last of the mainstream bugs that prevented from executing other + user processes from a user processes. Long story but I am glad to + haave that done. nsh: