linux-kernel - Re: bcache: order 7 allocation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Mon, 24 Jun 2013 13:05:18 -0700
From:	Kent Overstreet <koverstreet@...gle.com>
To:	Pavel Machek <pavel@....cz>
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	linux-bcache@...r.kernel.org
Subject: Re: bcache: order 7 allocation

On Sat, Jun 22, 2013 at 01:47:46PM +0200, Pavel Machek wrote:
> Hi!
> 
> I'm trying to play with bcache, but first surprise was oom in syslog:
> 
> Order 7 alocation is pretty big, no?

That's a btree node - and after it allocates the reserve at startup,
allocation failures don't matter.

I would just flip on CONFIG_COMPACTION - CONFIG_BCACHE used to select
that but someone complained (probably I just shouldn't have listened).
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/