Re: Simplified Steps for Building a Loadable module on -CURRENT

On Thu, Aug 31, 2006 at 03:28:13PM -0400, John Baldwin wrote:
 > On Thursday 31 August 2006 06:22, Pyun YongHyeon wrote:
 > > On Thu, Aug 31, 2006 at 05:32:13PM +0800, LI Xin wrote:
 > >  > Pyun YongHyeon wrote:
 > >  > > On Wed, Aug 30, 2006 at 03:12:59PM -0700, David Christensen wrote:
 > >  > >  > I've been able to successfully build drivers in the past as
 > >  > >  > loadable modules but I'm getting some kernel panics with -CURRENT
 > >  > >  > when installing a module using kldload now where things used to 
 > >  > > 
 > >  > > I wonder you encountered the same panic I have been seeing on CURRENT.
 > >  > > I get "Fatal trap 30" message when I load em(4) module with kldload.
 > >  > 
 > >  > What does Fatal trap 30 mean in these places?  I get some strange fatal
 > >  > trap 30's in acpi_cpi_idle, but I can not imagine how can these 
 > happen :-(
 > >  > 
 > > 
 > > Don't know what's cause of the panic since it used to work ok.
 > > See 
 > http://lists.freebsd.org/pipermail/freebsd-current/2006-August/065243.html
 > 
 > Trap 30 means an IDT vector fired that we didn't expect.  In this case, I 
 > think it may only happen on SMP, and it maybe that the interrupt gets sent to 

Yes, it's SMP(i386).

 > a CPU that hasn't seen the update to the IDT yet.  Try this patch:
 > 

Sorry, it sill happens.

-- 
Regards,
Pyun YongHyeon