linux-kernel - Re: 3.6.0 ext4 dump/filemap

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Message-ID: <CAO9zADx=DHHDcj3by9RSMatN4RFOQLzWwPJCZzs=NemQ4_sOUQ@mail.gmail.com>
Date:	Mon, 29 Oct 2012 17:51:37 -0400
From:	Justin Piszcz <jpiszcz@...idpixels.com>
To:	"Theodore Ts'o" <tytso@....edu>,
	Justin Piszcz <jpiszcz@...idpixels.com>,
	linux-kernel@...r.kernel.org
Subject: Re: 3.6.0 ext4 dump/filemap_fault?

On Sun, Oct 28, 2012 at 6:51 PM, Theodore Ts'o <tytso@....edu> wrote:
> On Sun, Oct 28, 2012 at 05:02:17PM -0400, Justin Piszcz wrote:
>> Hello,
>>
>> Any idea what happened here (during a backup)?
>
> A sync system call took longer than two mintues.  Why that happened,
> it's harder to say.  It's a warning, though, and not a fatal panic or
> kernel oops.
Ah, got it.

>
> How much memory do you have in your system?
32GB memory/32GB swap

> What happened afterwards?
It did eventually complete.

> Did the system continue, and did the sync command (I presume you ran
> "sync" from the command line?)  finally return to the command prompt?
In this case I did not run sync, I waited for the processes/dump/etc
to complete.

Thanks.

Justin.
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