linux-kernel - Re: deleting a btrfs subvolume shut up a server

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Message-ID: <20150610102728.GC3561@localhost.localdomain>
Date:	Wed, 10 Jun 2015 18:27:29 +0800
From:	Liu Bo <bo.li.liu@...cle.com>
To:	Toralf Förster <toralf.foerster@....de>
Cc:	linux-btrfs@...r.kernel.org,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: deleting a btrfs subvolume shut up a server

On Thu, May 14, 2015 at 02:16:58PM +0200, Toralf Förster wrote:
> I created at a 3 TB btrfs formatted disk a btrfs subvolume, unpacked a minimal Gentoo Linux in it, created in addition few files within it under ./tmp and bind mount from the host few files onto those files. If I now delete in another terminal the subvolume - then the server dies immediately
> 
> It is a headless server, I had to request a manually reset to get it back.
> Nothing in the syslog (syslog-ng 3.6.2) - the server was just shot in he head.
> 
> This happened 2 times in a row. Host is a stable hardened Gentoo with 4.0.2 kernel.

Hmm, is it possible to get some information from netconsole?

Thanks,

-liubo
> 
> :-/
> 
> -- 
> Toralf
> pgp key: 7B1A 07F4 EC82 0F90 D4C2  8936 872A E508 0076 E94E
> --
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