linux-kernel - Re: pdflush stuck in D state with v2.6.24-rc1-192-gef49c32

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]

Date:	Mon, 29 Oct 2007 10:01:55 -0500
From:	Florin Iucha <florin@...ha.net>
To:	Trond Myklebust <trond.myklebust@....uio.no>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: pdflush stuck in D state with v2.6.24-rc1-192-gef49c32

On Mon, Oct 29, 2007 at 09:46:59AM -0400, Trond Myklebust wrote:
> > What could cause this?  I use NFS4 to automount the home directories
> > from a Solaris10 server, and this box found a few bugs in the NFS4
> > code (fixed in the 2.6.22 kernel).
> > 
> > I'll try running with 2.6.23 again for a few days, to see if I get the
> > pdflush stuck.  Any other ideas?
> 
> One of them appears to be waiting for i/o congestion to clear up. If the
> filesystem is NFS, then that means that some other thread is busy
> writing data out to the server. You'll need to look at the rest of the
> thread dump to figure out which thread is writing the data out, and
> where it is getting stuck.

Trond,

The full dmesg is at http://iucha.net/2.6.24-rc1/dmesg.stuck_pdflush.gz

Cheers,
florin

-- 
Bruce Schneier expects the Spanish Inquisition.
      http://geekz.co.uk/schneierfacts/fact/163

Download attachment "signature.asc" of type "application/pgp-signature" (190 bytes)