Re: torrent hash failures since 3.9.0-rc1

From: Zheng Liu
Date: Tue Mar 12 2013 - 02:29:37 EST


On Tue, Mar 12, 2013 at 07:16:24AM +0100, Markus Trippelsdorf wrote:
> On 2013.03.11 at 23:30 -0400, Theodore Ts'o wrote:
> > On Tue, Mar 12, 2013 at 11:00:58AM +0800, Zheng Liu wrote:
> > >
> > > Thanks for reporting this problem. My deepest apologies.
> > >
> > > As Ted suggested, could you please try to use ext4 git tree? I want to
> > > make sure whether this bug has been fixed by my lastest patch series or
> > > not.
> >
> > It's definitely worth a try to compile the master branch of the ext4
> > tree and see if it reproduces or not.
>
> I cannot reproduce the issue on top of "ext4.git dev", so fortunately
> the problem seems to be already fixed there.
> Thanks.

Great! Thanks for the confirmation.

>
> Do you guys have a hunch which commit is the actual fix?
> (Maybe I will "bisect" it later today.)

I think maybe this two commits can fix it, but I am not sure which one
is the actual fix (I guess it is the former one, ;-) ). Please try it
if you could bisect it. Thanks in advance.

* 079d7667af20876a59a1d9b0d4d1e15dcf17fa34
ext4: fix wrong the number of the allocated blocks in
ext4_split_extent()

* cdee78433c138c2f2018a6884673739af2634787
ext4: fix wrong m_len value after unwritten extent conversion

Regards,
- Zheng
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