linux-kernel - Re: 2.6.24-rc2 XFS nfsd hang / smbd too

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: <20071116003410.GA16797@puku.stupidest.org>
Date:	Thu, 15 Nov 2007 16:34:10 -0800
From:	Chris Wedgwood <cw@...f.org>
To:	Christian Kujau <lists@...dbynature.de>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	Benny Halevy <bhalevy@...asas.com>, linux-xfs@....sgi.com
Subject: Re: 2.6.24-rc2 XFS nfsd hang / smbd too

On Thu, Nov 15, 2007 at 08:51:36AM +0100, Christian Kujau wrote:

> [<c040914c>] mutex_lock_nested+0xcc/0x2c0
> [<c016dc64>] do_lookup+0xa4/0x190
> [<c016f6f9>] __link_path_walk+0x749/0xd10
> [<c016fd04>] link_path_walk+0x44/0xc0
> [<c016fd98>] path_walk+0x18/0x20
> [<c016ff98>] do_path_lookup+0x78/0x1c0
> [<c0170998>] __user_walk_fd+0x38/0x60
> [<c0169bd1>] vfs_stat_fd+0x21/0x50
> [<c0169ca1>] vfs_stat+0x11/0x20
> [<c0169cc4>] sys_stat64+0x14/0x30
> [<c01028d6>] sysenter_past_esp+0x5f/0xa5

nfsd already wedged up and holds a lock, this is expected.


I'm not sure what you're doing here, but a viable work-around for now
might be to use nfsv2 mounts, something like

  mount -o vers=2 ...

or to keep v3 and disable readdirplus doing something like:

  mount -o vers=3,nordirplus ...

The later I didn't test but was suggested on #linuxfs.
-
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/