From: David Chinner <dgc@sgi.com>
To: Alessandro Bono <alessandro.bono@gmail.com>
Cc: linux-xfs@oss.sgi.com
Subject: Re: 2.6.23-rc9-git1 hang with XFS
Date: Thu, 4 Oct 2007 10:39:35 +1000 [thread overview]
Message-ID: <20071004003935.GC23367404@sgi.com> (raw)
In-Reply-To: <fe1032$3mi$1@sea.gmane.org>
On Wed, Oct 03, 2007 at 11:03:29PM +0200, Alessandro Bono wrote:
> Hi all
>
> I'm testing 2.6.23-rc9-git1 on my old home server
> Trying to reorganizer my xfs filesystem with xfs_fsr cause a sort of system
> hang
xfs_fsr is waiting for a direct I/O to complete.
Other processes are waiting for the superblock I/O to compete
(which is why writes are hanging), an dothers are waiting
for iclog space to be freed up. I think something is holding
off I/O completion, and this:
> possible SYN flooding on port 4664. Sending cookies.
> possible SYN flooding on port 4664. Sending cookies.
> possible SYN flooding on port 4664. Sending cookies.
> possible SYN flooding on port 4664. Sending cookies.
> possible SYN flooding on port 4664. Sending cookies.
indicates someone trying a DOS on your box. Perhaps it's
succeeding by denying interrupt service to you disks?
If you pull the network cable, does the system start to respond
properly again?
Cheers,
Dave.
--
Dave Chinner
Principal Engineer
SGI Australian Software Group
next prev parent reply other threads:[~2007-10-04 0:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-03 21:03 2.6.23-rc9-git1 hang with XFS Alessandro Bono
2007-10-04 0:39 ` David Chinner [this message]
2007-10-04 7:39 ` Alessandro Bono
2007-10-04 19:38 ` Alessandro Bono
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