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



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: 
Subject: Re: port-i386/40143: Crash in i386:doreti_checkast() 
Date: Sat, 28 Feb 2009 13:39:11 -0600

 Greg Oster writes:
 > The following reply was made to PR port-i386/40143; it has been noted by GNAT
 > S.
 > 
 > 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 cras
 > h
 >  > >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 D
 > ec 
 >  > 9 12:43:27 GMT 2008 
 > steve%mctavish.co.uk@localhost:/usr/src/sys/arch/i386/compile/JO
 > E 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...)
 
 I'm reminded that I'm actually running with this one too:
 
  cvs rdiff -r1.143 -r1.144 src/sys/uvm/uvm_page.c
 
 (both of these should get pulled up to netbsd-5)
 
 Later...
 
 Greg Oster
 
 


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