Commit d1af65d1 authored by David Miller's avatar David Miller Committed by Linus Torvalds

[PATCH] Bug in MM_RB debugging

The code is seemingly trying to make sure that rb_next() brings us to
successive increasing vma entries.

But the two variables, prev and pend, used to perform these checks, are
never advanced.
Signed-off-by: default avatarDavid S. Miller <>
Cc: Andrea Arcangeli <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 04a51e66
......@@ -299,6 +299,8 @@ static int browse_rb(struct rb_root *root)
printk("vm_end %lx < vm_start %lx\n", vma->vm_end, vma->vm_start);
pn = nd;
prev = vma->vm_start;
pend = vma->vm_end;
j = 0;
for (nd = pn; nd; nd = rb_prev(nd)) {
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