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Date: Sat, 28 Feb 2004 19:30:08 -0500 (EST)
From: Robert Watson <rwatson@freebsd.org>
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To: Poul-Henning Kamp <phk@phk.freebsd.dk>
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cc: current@freebsd.org
Subject: Re: failed to set signal flags properly for ast()
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On Sat, 28 Feb 2004, Robert Watson wrote:

> 
> On Sat, 28 Feb 2004, Poul-Henning Kamp wrote:
> 
> > On a -current kernel from this morning, I ran a "make -j 12 -s
> > buildworld". 
> > 
> > At some point I pressed ctrl-Z and it started spitting tons of
> > 	failed to set signal flags properly for ast()  out on the serial
> > console, but after about a minute it stopped and the system continued. 
> 
> I just experienced something identical.  I set up an NFS root box to try
> to reproduce what Alan Cox reported, and hit Ctrl-Z to check which
> version of the kernel I was running during the build.  Immediatly got a
> lot of the following: 
> 
> failed to set signal flags properly for ast()
> failed to set signal flags properly for ast()
> failed to set signal flags properly for ast()
> failed to set signal flags properly for ast()
> failed to set signal flags properly for ast()
> failed to set signal flags properly for ast()
> failed to set signal flags properly for ast()
> failed to set signal flags properly for ast()
> 
> It hasn't finished that here yet, but if it's going to stop it might
> take a bit as the serial console is 9600bps.  This box was basically
> running a buildworld -j 6 with /usr/src in NFS, and /usr/obj in
> swap-backed md.  No threaded applications running, etc. 

As a follow-up, it kept spinning printing that message until I
foregrounded the build again, at which point it went away.

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert@fledge.watson.org      Senior Research Scientist, McAfee Research