Re: PR/47648 CVS commit: src/sys/arch/x86

[Chuck Silvers <chuq%chuq.com@localhost>]

On Thu, Mar 28, 2013 at 10:29:12PM +0100, Lars Heidieker wrote:
> Since these changes I see an interrupt storm in int 9 for !DIAGNOSTICS
> and !DEBUG or DIAGNOSTICS & DEBUG kernels.
> It goes away if I put the ioapic_reenable back into mpacpi_find_interrupts.
> 
> I think the problem has been there before as well but the
> ioapic_reenable fixes it.
> 
> I've attached two dmesg print (same config but one with DIAGNOSTICS
> enabled and the other one with DIAGNOISTICS & DEBUG)
> 
> In case of no interrupt storm
> ioapic0: int9 0x8060<vector=0x60,delmode=0x0,level,dest=0x0> 0x0<target=0x0>
> 
> In case of interrupt storm
> ioapic0: int9
> 0xb060<vector=0x60,delmode=0x0,pending,actlo,level,dest=0x0> 0x0<target=0x0>


ok, apparently my new code in acpi_md_OsInstallInterruptHandler() gets the 
polarity wrong,
but mpacpi_nonpci_intr() which is called later gets it right, and call to 
ioapic_reenable()
pushes the corrected info into the hardware.  could you add some printfs to 
both of these
to see why they are coming to different conclusions about what "redir" should 
be?

-Chuck