linux-kernel - Re: [PATCH 0/5] reiserfs lock inversion fixes on xattr

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: <alpine.DEB.2.01.0912301943020.3483@bogon.housecafe.de>
Date:	Wed, 30 Dec 2009 22:32:04 -0800 (PST)
From:	Christian Kujau <lists@...dbynature.de>
To:	Frederic Weisbecker <fweisbec@...il.com>
cc:	LKML <linux-kernel@...r.kernel.org>,
	Alexander Beregalov <a.beregalov@...il.com>,
	Chris Mason <chris.mason@...cle.com>,
	Ingo Molnar <mingo@...e.hu>, reiserfs-devel@...r.kernel.org
Subject: Re: [PATCH 0/5] reiserfs lock inversion fixes on xattr

On Wed, 30 Dec 2009 at 21:42, Frederic Weisbecker wrote:
> I hope you can give it a try (and/or review) before I send the whole
> to Linus.

Without your patches, "dbench -x" was pretty much instantly causing the 
threads to lock up, forcing me to reboot the box. With LOCKDEP enabled, 
warnings were printed. After applying your patches (and a reboot) I've run 
"dbench -x" for quite a while now with different runtimes and number of
clients and it's not locking up any more. I've tested with:

CONFIG_REISERFS_FS=y
CONFIG_REISERFS_CHECK=y
CONFIG_REISERFS_PROC_INFO=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
# CONFIG_REISERFS_FS_SECURITY is not set

...and a few "Kernel hacking" options set. Full config and dmesg:

   http://nerdbynature.de/bits/2.6.33-rc1/reiserfs/t3/

   (although I'm not really testing -rc1 but latest mainline -git
    and your changes pulled)

So, feel free to add:

  Tested-by: Christian Kujau <lists@...dbynature.de>

I can't help with the code review though :-\

Thanks!
Christian.
-- 
BOFH excuse #208:

Your mail is being routed through Germany ... and they're censoring us.
--
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/