Re: port-i386/40143: Crash in i386:doreti_checkast()

[Greg Oster <oster%cs.usask.ca@localhost>]

The following reply was made to PR port-i386/40143; it has been noted by GNATS.

From: Greg Oster <oster%cs.usask.ca@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: drochner%netbsd.org@localhost
Subject: Re: port-i386/40143: Crash in i386:doreti_checkast() 
Date: Sat, 28 Feb 2009 13:33:36 -0600

 scw%netbsd.org@localhost writes:
 > >Number:         40143
 > >Category:       port-i386
 > >Synopsis:       Viewing an mpeg transport stream with mplayer causes crash
 > >Confidential:   no
 > >Severity:       serious
 > >Priority:       medium
 > >Responsible:    port-i386-maintainer
 > >State:          open
 > >Class:          sw-bug
 > >Submitter-Id:   net
 > >Arrival-Date:   Tue Dec 09 13:35:00 +0000 2008
 > >Originator:     Steve Woodford
 > >Release:        NetBSD 5.0_BETA
 > >Organization:
 > >Environment:
 > System: NetBSD joe.mctavish.co.uk 5.0_BETA NetBSD 5.0_BETA (JOE) #0: Tue Dec 
 > 9 12:43:27 GMT 2008 
 > steve%mctavish.co.uk@localhost:/usr/src/sys/arch/i386/compile/JOE i
 > 386
 > Architecture: i386
 > Machine: i386
 > >Description:
 > I have a DVB-T card installed in an Ubuntu box which I use for occasional
 > streaming of broadcast video to my NetBSD workstation. The stream is
 > viewed using mplayer on NetBSD.
 > 
 > I last used this set up some time before the netbsd-5 branch was cut and
 > it worked well. Now, however, shortly after starting mplayer the NetBSD
 > box panics. Due to having no desire to deliberately crash my NetBSD
 > workstation (raid parity rebuild takes forever), I've only tried to
 > reproduce this problem twice. On both occasions the panic occurred within
 > a few minutes of starting mplayer.
 
 I have been able to reliably reproduce this with: 
  
 while (1)
  mplayer -ao null -vo null somefile.avi
 end
 
 and the box would keel over in a few minutes.  However: after updating 
 my -current kernel to have this fix:
 
   cvs rdiff -r1.142 -r1.143 src/sys/uvm/uvm_page.c
 
 I have been unable to reproduce the panic!!!  (it's been 2 hours of 
 pounding now, where before it only needed about 5 minutes...)
 
 Later...
 
 Greg Oster