> Yeah, this is because trinity destroys the UML stub code.
> Please test the attached patch, it should fix the root cause of the
> problem.
@@ -124,6 +125,9 @@ static int add_munmap(unsigned long addr, unsigned
long len,
struct host_vm_op *last;
int ret = 0;
+ if ((addr >= STUB_START) && (addr < STUB_END))
+ return -EINVAL;
+
if (hvc->index != 0) {
last = &hvc->ops[hvc->index - 1];
if ((last->type == MUNMAP) &&
I do not know how add_munmap is called, so this is more of a question.
What happens in the use cases where the mmap spans multiple pages, and
the stub is in the middle and other variations?
Should it not check that
a) The start of the MMAP is not within the STUB.
b) The end of the MMAP is within the STUB
c) That the start of the MMAP is not before the STUB and the END is not
after the STUB
Stian Skjelstad
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