On 2015-04-21 05:38, Russell Coker wrote:
> On Tue, 21 Apr 2015, Qu Wenruo <quwenruo@cn.fujitsu.com> wrote:
>> Although we may add extra check for such problem to improve robustness,
>> but IMHO it's not a real world problem.
>
> Some of the ReiserFS developers gave a similar reaction to some of my bug
> reports.  ReiserFS wasn't the most robust filesystem.
>
> I think that it should be EXECTED that a kernel will have to occasionally deal
> with filesystem images that are created by hostile parties.  Userspace crash
> and kernel freeze is not a suitable way of dealing with it.
>
And that kind of reaction is why ReiserFS isn't taken very seriously in 
an enterprise environment.

Just because something shouldn't be possible in a 'real world' 
environment, doesn't mean it won't happen; never underestimate the 
ability of hardware to fail in new and unexpected ways, or the ability 
of administrators to make stupid mistakes.