linux-kernel - Re: XFS internal error xfs_da_do_buf(1) at line 2015 of file fs/xfs/xfs_da

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

Message-ID: <20090104114425.241f6630@lxorguk.ukuu.org.uk>
Date:	Sun, 4 Jan 2009 11:44:25 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Adam Nielsen <a.nielsen@...kadi.net>,
	Christoph Hellwig <hch@...radead.org>,
	LKML Mailinglist <linux-kernel@...r.kernel.org>
Subject: Re: XFS internal error xfs_da_do_buf(1) at line 2015 of file
 fs/xfs/xfs_da_btree.c

> On Debian based systems you can add -W0 to /etc/default/hdparm and
> it gets executed before the root filesystem is remounted read-write,
> I'm not sure how other distributions handle it.

Generally they avoid setting -W0 because it ruins performance and can be
very bad for disk lifetime. The barriers code is there for a reason.

Of course certain distributions default to using LVM for all their file
systems which is completely and mindbogglingly bogus. That both messes up
barriers in some cases and takes a good 10-20% off performance when I've
benched it.

LVM is cool - if you need it, most people don't.

Alan
--
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/