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Date: Sat, 2 Jun 2012 00:22:34 -0700 (PDT)
From: Hugh Dickins <hughd@google.com>
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To: Markus Trippelsdorf <markus@trippelsdorf.de>
cc: Linus Torvalds <torvalds@linux-foundation.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
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        Andrew Morton <akpm@linux-foundation.org>,
        Cong Wang <amwang@redhat.com>, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org
Subject: Re: WARNING: at mm/page-writeback.c:1990
 __set_page_dirty_nobuffers+0x13a/0x170()
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On Sat, 2 Jun 2012, Markus Trippelsdorf wrote:
> On 2012.06.01 at 21:40 -0700, Hugh Dickins wrote:
> > 
> > I'm guessing that the few people who see the warning are those running
> > new systemd distros, and that systemd is indeed now making use of the
> > fallocate support we added into tmpfs for it.)
> 
> At least in my case it's nothing that horrible. I'm just setting
> browser.cache.disk.parent_directory to /dev/shm in Firefox. And Firefox
> does indeed use fallocate on its "disk cache" items.

That fits, and it's very helpful to know - thank you.

Hugh
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