Re: [PATCH] ext4: fix BUG_ON() in ext4_ext_insert_extent()

[Greg KH <greg@kroah.com>]

On Fri, Oct 28, 2011 at 04:46:52PM +0800, Zheng Liu wrote:
> On Fri, Oct 28, 2011 at 07:24:06AM +0200, Greg KH wrote:
> > On Fri, Oct 28, 2011 at 10:36:08AM +0800, Zheng Liu wrote:
> > > On Thu, Oct 27, 2011 at 01:53:22PM +0200, Greg KH wrote:
> > > > On Thu, Oct 27, 2011 at 05:43:29AM -0400, Ted Ts'o wrote:
> > > > > On Wed, Sep 28, 2011 at 06:45:03PM +0800, Tao Ma wrote:
> > > > > > actually this bug does show up in 2.6.39 and I think stable tree still
> > > > > > needs this fix. After some careful test, my colleague has generated
> > > > > > the patch. Please considering ack it so that Greg can add it into the
> > > > > > stable tree.
> > > > > 
> > > > > Sorry for the delay, but yes.  This patch would be good for the stable
> > > > > tree for 2.6.39 (if Greg is still accepting patches for
> > > > > 2.6.39-stable).  It doesn't apply for upstream ext4 since the code has
> > > > > been changed/refactored since then, but it's a good fix.
> > > > 
> > > > No, .39 has not been maintained for quite some time now, sorry.
> > > Hi Greg,
> > > 
> > > Thank you for your attention. Actually this bug is between from .32 to
> > > .39. Please considering to apply this patch to other stable or longterm
> > > trees.
> > 
> > Ah, ok, that makes sense, can you provide me a patch that will apply to
> > the .32 and .33-longterm kernels?
> Hi Greg,
> 
> I couldn't download the .32 and .33-longterm kernels from kernel.org
> because the full sources were not found on that server. Thus this patch
> is generated from the .32-mainline kernel and can be applied to the .32
> and .33 kernels.

The .32 and .33 longterm kernels are part of the linux-stable tree on
git.kernel.org, they are in their own branch.  Please redo this against
those trees, as I'm pretty sure that there will be conflicts, due to all
of the different changes since the .0 releases.

thanks,

greg k-h