linux-kernel - Re: [GIT PULL] Btrfs

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Message-ID: <CA+55aFzkbk=EVjqp6cx+OQXPadFGfFvaHHV59+CZFStFB8gGvQ@mail.gmail.com>
Date:	Mon, 21 Mar 2016 18:16:54 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Chris Mason <clm@...com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-btrfs <linux-btrfs@...r.kernel.org>
Subject: Re: [GIT PULL] Btrfs

On Mon, Mar 21, 2016 at 5:24 PM, Chris Mason <clm@...com> wrote:
>
> I waited an extra day to send this one out because I hit a crash late
> last week with CONFIG_DEBUG_PAGEALLOC enabled (fixed in the top commit).

Hmm. If that commit helps, it will spit out a warning.

So is it actually fixed, or just hacked around to the point where you
don't get a page fault?

That WARN_ON_ONCE kind of implies it's a "this happens, but we don't know why".

                  Linus