From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Thu, 07 Aug 2003 02:37:03 +0000 Subject: Re: [lia64-sim] Simulator segfaults Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org >>>>> On Thu, 7 Aug 2003 09:51:44 +1000, Peter Chubb said: >>>>> "David" = David Mosberger writes: Peter> however, I'd expect that attempting to execute an IA32 Peter> instruction that wasn't implemented would generate an Peter> unimplemented instruction trap to the operating system, not Peter> cause a segfault. David> I agree the Ski behavior isn't pretty for this case, but I David> suspect we may have to just live with it. AFAIK, nobody David> seriously cares about x86 emulation on Ski, because it's David> woefully incomplete at any rate (well, it may be useful for David> DOS-area programs, but certainly not for x86 Linux programs). Peter> Yes, well, I was trying to use it to work out how to fix IA32 Peter> coredumps on the IA64 kernel --- curerntly an easy way to Peter> crash 2.6.0 is to run an IA32 program that segfaults. Hmmh, I think Arun has patches to make ia32 core-dumps work. Arun, can you confirm? --david