Re: port-i386/44078: port-i386 crash to BIOS on demand from user mode SIGTRAP

[David Laight <david%l8s.co.uk@localhost>]

The following reply was made to PR port-i386/44078; it has been noted by GNATS.

From: David Laight <david%l8s.co.uk@localhost>
To: 
Cc: gnats-bugs%NetBSD.org@localhost
Subject: Re: port-i386/44078: port-i386 crash to BIOS on demand from user mode 
SIGTRAP
Date: Wed, 10 Nov 2010 22:16:47 +0000

 On Wed, Nov 10, 2010 at 01:49:27PM -0800, John Reiser wrote:
 > On 11/10/2010 10:30 AM, David Laight wrote:
 > >  On Wed, Nov 10, 2010 at 04:35:00PM +0000, jreiser%BitWagon.com@localhost 
 > > wrote:
 > >  > >Number:         44078
 > >  > >Category:       port-i386
 > >  > >Synopsis:       i386 crash to BIOS on demand from user mode SIGTRAP
 > >  
 > >  Can you try this on 'current' ?
 > 
 > The test case executes correctly (does not crash the system) when run under:
 > NetBSD NetBSD32.local 5.1 NetBSD 5.1 (GENERIC) #0: Sun Nov  7 14:39:56 UTC 
 > 2010  
 > builds%b6.netbsd.org@localhost:/home/builds/ab/netbsd-5-1-RELEASE/i386/201011061943Z-obj/home/builds/ab/netbsd-5-1-RELEASE/src/sys/arch/i386/compile/GENERIC
 >  i386
 > which I obtained from  ftp://iso.netbsd.org/pub/NetBSD/iso/5.1/i386cd-5.1.iso
 > 
 > The output I see is:
 > -----
 > [1]   Trace/BPT trap (core dumped) ./nop
 > -----
 > and file 'nop.core' is created and is a relevant "core" file.
 > 
 > -- 
 
 In which case this was probably fixed by the changes done to fix
 faults in kernel during 'return to user'.
 
 I think the changes were pulled up to 5.1.
 Not sure whether it is worth applying them to the 5.0 branch.
 
        David
 
 -- 
 David Laight: david%l8s.co.uk@localhost