Re: Monthly md check == hung machine; how do I debug?

2008-02-05 Thread Robin Lee Powell
On Wed, Feb 06, 2008 at 07:27:56AM +1100, Neil Brown wrote: > On Tuesday February 5, [EMAIL PROTECTED] wrote: > > > > I was able to solve the problem, however, like so: > > > > 132c133 > > < # CONFIG_PREEMPT_NONE is not set > > --- > > > CONFIG_PREEMPT_NONE=y > > 134,135c135,136 > > < CONFIG_PREE

Re: Monthly md check == hung machine; how do I debug?

2008-02-05 Thread Robin Lee Powell
On Tue, Feb 05, 2008 at 01:55:17PM -0500, Lennart Sorensen wrote: > I tend to adjust the max disk speed raid is allowed to use, since > the default of 200MB/s makes the system close to unusable while it > is taking place. Could having slow disk access be causing things > to lock up? I don't know

Re: Monthly md check == hung machine; how do I debug?

2008-02-05 Thread Robin Lee Powell
On Mon, Feb 04, 2008 at 09:40:55PM +1100, Nick Piggin wrote: > On Monday 04 February 2008 08:21, Robin Lee Powell wrote: > > I've got a machine with a 4 disk SATA raid10 configuration using > > md. The entire disk is loop-AES encrypted, but that shouldn't > > ma

Re: Monthly md check == hung machine; how do I debug?

2008-02-03 Thread Robin Lee Powell
On Mon, Feb 04, 2008 at 06:37:02PM +1300, martin f krafft wrote: > also sprach Robin Lee Powell <[EMAIL PROTECTED]> [2008.02.04.1021 +1300]: > > /usr/share/mdadm/checkarray --cron --all --quiet > > FYI: > http://git.debian.org/?p=pkg-mdadm/mdadm.git;a=blob;f=d

Monthly md check == hung machine; how do I debug?

2008-02-03 Thread Robin Lee Powell
I've got a machine with a 4 disk SATA raid10 configuration using md. The entire disk is loop-AES encrypted, but that shouldn't matter here. Once a month, Debian runs: /usr/share/mdadm/checkarray --cron --all --quiet and the machine hangs within 30 minutes of that starting. It seems that I

Re: NFS hang + umount -f: better behaviour requested.

2007-08-21 Thread Robin Lee Powell
On Tue, Aug 21, 2007 at 01:01:44PM -0400, Peter Staubach wrote: > John Stoffel wrote: > >Robin> I'm bringing this up again (I know it's been mentioned here > >Robin> before) because I had been told that NFS support had gotten > >Robin> better in Linux recently, so I have been (for my $dayjob) > >Ro

Re: NFS hang + umount -f: better behaviour requested.

2007-08-20 Thread Robin Lee Powell
On Tue, Aug 21, 2007 at 09:27:06AM +1000, Neil Brown wrote: > On Monday August 20, [EMAIL PROTECTED] wrote: > > (cc's to me appreciated) > > > > It would be really, really nice if "umount -f" against a hung > > NFS mount actually worked on Linux. As much as I hate Solaris, > > I consider it the g

NFS hang + umount -f: better behaviour requested.

2007-08-20 Thread Robin Lee Powell
(cc's to me appreciated) It would be really, really nice if "umount -f" against a hung NFS mount actually worked on Linux. As much as I hate Solaris, I consider it the gold standard in this case: If I say "umount -f /mount/that/is/hung" it just goes away, immediately, and anything still trying to