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Re: Strange behavior on the 2.4.18 XFS tree?

To: Keith Owens <kaos@xxxxxxx>
Subject: Re: Strange behavior on the 2.4.18 XFS tree?
From: Steve Lord <lord@xxxxxxx>
Date: 15 May 2002 08:39:00 -0500
Cc: Michael Sinz <msinz@xxxxxxxxx>, linux-xfs@xxxxxxxxxxx
In-reply-to: <22203.1021466116@xxxxxxxxxxxxxxxxxxxxx>
References: <22203.1021466116@xxxxxxxxxxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
On Wed, 2002-05-15 at 07:35, Keith Owens wrote:
> On Wed, 15 May 2002 07:30:09 -0400, 
> Michael Sinz <msinz@xxxxxxxxx> wrote:
> >I have only been able to see this behavior on my system running the
> >kernel from the 2.4 XFS CVS tree.  It is somewhat reproduceable.
> >
> >The problem is that I started up a number of "rxvt" sessions and they
> >took well over a minute to start up.  During that time, the cpu
> >utilization was almost nil.  (Less than 1%)
> >
> >There was a background find operation happening, and this seems to be
> >the key item.
> 
> When the problem occurs, does typing sync get everything running again?
> I have been seeing an intermittent lock problem with XFS where
> everything stops until some other disk activity kicks in and the lock
> is released.

I wish people would tell us things like this when they happen.

For the record, there is no use of the BKL in xfs at all. Michael's
problem sounds more like memory getting chewed up by the dcache and
icache.


Steve


-- 

Steve Lord                                      voice: +1-651-683-3511
Principal Engineer, Filesystem Software         email: lord@xxxxxxx


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