On Mon, 10 Jul 2006 13:05:35 +0400
Kirill Korotaev <[email protected]> wrote:
> Hello!
>
> Andrew, this is a patch from Alexey Kuznetsov for 2.6.16.
> I believe 2.6.17 still has this leak.
>
> -------------------------------------------------------------
>
> 2.6.16 leaks like hell. While testing, I found massive leakage
> (reproduced in openvz) in:
>
> *filp
> *size-4096
>
> And 1 object leaks in
> *size-32
> *size-64
> *size-128
>
>
> It is the fix for the first one. filp leaks in the bowels
> of namei.c.
>
> Seems, size-4096 is file table leaking in expand_fdtables.
I suspect that's been there for a long time.
> I have no idea what are the rest and why they show only
> accompaniing another leaks. Some debugging structs?
I don't understand this. Are you implying that there are other bugs.
> Signed-Off-By: Alexey Kuznetsov <[email protected]>
> CC: Kirill Korotaev <[email protected]>
>
> --- linux-2.6.16-w/fs/namei.c 2006-07-10 11:43:11.000000000 +0400
> +++ linux-2.6.16/fs/namei.c 2006-07-10 11:53:36.000000000 +0400
> @@ -1774,8 +1774,15 @@ do_link:
> if (error)
> goto exit_dput;
> error = __do_follow_link(&path, nd);
> - if (error)
> + if (error) {
> + /* Does someone understand code flow here? Or it is only
> + * me so stupid? Anathema to whoever designed this non-sense
> + * with "intent.open".
> + */
> + if (!IS_ERR(nd->intent.open.file))
> + release_open_intent(nd);
> return error;
> + }
> nd->flags &= ~LOOKUP_PARENT;
> if (nd->last_type == LAST_BIND)
> goto ok;
>
It's good to have some more Alexeycomments in the tree.
I wonder if we're also needing a path_release() here. And if not, whether
it is still safe to run release_open_intent() against this nameidata?
Hopefully Trond can recall what's going on in there...
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
