with the attached patch applied i get:
[root@moon /root]# ldd core
not a dynamic executable
[root@moon /root]#
just as expected. The reason why we crash and why it made the kernel
reboot in such a nasty way was that munmap() did just a tad more work than
necessary and we zapped 0xc0000000's page table entry ... that is a pretty
vital piece of 4M virtual space on Linux ;) (erm, just dont ask me how i
managed to debug this ;)
-- mingo, running a hopefully much safer kernel now ;)
--- linux/mm/mmap.c.orig Wed Jan 27 14:09:31 1999
+++ linux/mm/mmap.c Wed Jan 27 14:06:09 1999
@@ -558,7 +558,7 @@
unsigned long start, unsigned long end)
{
unsigned long first = start & PGDIR_MASK;
- unsigned long last = (end & PGDIR_MASK) + PGDIR_SIZE;
+ unsigned long last = ((end-1) & PGDIR_MASK) + PGDIR_SIZE;
if (!prev) {
prev = mm->mmap;
-
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