From: Chris Mason <clm@fb.com>
To: Marc MERLIN <marc@merlins.org>, <linux-btrfs@vger.kernel.org>
Subject: Re: btrfs-rmw-2: page allocation failure: order:1, mode:0x8020
Date: Wed, 19 Mar 2014 12:20:08 -0400 [thread overview]
Message-ID: <5329C3B8.8050204@fb.com> (raw)
In-Reply-To: <20140319154513.GQ6143@merlins.org>
On 03/19/2014 11:45 AM, Marc MERLIN wrote:
> My server died last night during a btrfs send/receive to a btrfs radi5 array
>
> Here are the logs. Is this anything known or with a possible workaround?
>
> Thanks,
> Marc
>
> btrfs-rmw-2: page allocation failure: order:1, mode:0x8020
This is an order 1 atomic allocation from the mvs driver, we really
should not be depending on that to get IO done. A quick search and it
looks like we're allocating MVS_SLOT_BUF_SZ (8192) bytes.
You could try bumping the lowmem reserves.
-chris
next prev parent reply other threads:[~2014-03-19 16:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-19 15:45 btrfs-rmw-2: page allocation failure: order:1, mode:0x8020 Marc MERLIN
2014-03-19 16:20 ` Chris Mason [this message]
2014-03-19 22:37 ` Marc MERLIN
2014-03-20 0:13 ` Chris Mason
2014-03-20 0:20 ` Marc MERLIN
2014-03-20 1:01 ` Chris Mason
2014-03-20 6:19 ` Duncan
2014-03-20 13:50 ` Chris Mason
[not found] <20140320054129.GS6143@merlins.org>
2014-03-30 4:26 ` Marc MERLIN
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