Re: SIGSEGV on disable/delete a breakpoint for non-i386 sytems.

Because of some problem with my interdiff I am not able to generate it. 

I have added following few lines to arch/x86_64/kernel/kgdb.c

+int kgdb_skipexception(int exception, struct pt_regs *regs)
+{
+       if (exception == 3 && kgdb_isremovedbreak(regs->rip - 1)) {
+               regs->rip -= 1;
+               return 1;
+       }
+       return 0;
+}

So I think it will be more easy to manually patch it than using
interdiff. :-)

On Tue, 2006-01-03 at 09:57 -0700, Tom Rini wrote:
> On Mon, Dec 26, 2005 at 08:57:48PM +0530, Milind Dumbare wrote:
> 
> > If we disable or delete a breakpoint with present KGDB code, 
> > it results in a panic on smp systems for non-i386 systems. 
> > 
> > Previously we fixed this problem for i386. Patch attached 
> > below fixes it for x86_64.
> 
> Can you please put up the interdiff (ie just what actually fixed this) ?
> I'd be ppc64 will need this as well.  And possibly ia64.
> 
-- 
...Miline
LinSysSoft Technologies
Ask me about KGDB Pro
http://www.linsyssoft.com/Kgdbpro.html



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