diff options
| author | David Miller <davem@davemloft.net> | 2007-02-28 20:13:13 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-03-01 14:53:38 -0800 |
| commit | d1af65d13f3625543916a85c86d02826df910fcf (patch) | |
| tree | 6f04906a3837bd92d89751925e2b4937439e74c0 /mm/mmap.c | |
| parent | 04a51e66adcdc0de6ffaa488934ce3ffb3818ecf (diff) | |
| download | lwn-d1af65d13f3625543916a85c86d02826df910fcf.tar.gz lwn-d1af65d13f3625543916a85c86d02826df910fcf.zip | |
[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: David S. Miller <davem@davemloft.net>
Cc: Andrea Arcangeli <andrea@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index eb509ae76553..84f997da78d7 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -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); i++; pn = nd; + prev = vma->vm_start; + pend = vma->vm_end; } j = 0; for (nd = pn; nd; nd = rb_prev(nd)) { |