Re: Carefully crafted BTRFS-image causes kernel to crash

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On 2015-04-21 05:38, Russell Coker wrote:
On Tue, 21 Apr 2015, Qu Wenruo <quwenruo@xxxxxxxxxxxxxx> 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.

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