Subject: Re: parallel make locking up (on amd64)
To: Kurt Schreiner <>
From: Eric Haszlakiewicz <>
List: current-users
Date: 07/13/2006 12:44:03
On Thu, Jul 13, 2006 at 01:59:25PM +0200, Kurt Schreiner wrote:
> On Wed, Jul 12, 2006 at 09:35:50PM +0200, Martin Husemann wrote:
> > On Wed, Jul 12, 2006 at 04:49:44PM +0200, Kurt Schreiner wrote:
> > > Is there anything I can do to help debugging this? Sendpr?
> > 
> > Often a kernel with options LOCKDEBUG helps to debug this kind of problems.
> Hm, I'm running a kernel w/ "options LOCKDEBUG", what I can do now?
> The make's are hung again, but I get this hangs only when a union mount is
> part of the game - softdeps or not doesn't make a difference, putting in
> the union-mounted "local modifications" (which are empty, btw) reliably leads
> to hung make's. Hm! So softdeps (what christos suggested) seem not to be the
> culprit this time...

	yeah, I've noticed the same thing.  It used to happen only sporadically
for me, but then something changed and I started getting the hangs all the
time.  That was a while ago, but since then I haven't had time to figure out
what changed, or how to fix it.