Date: Wed, 30 Oct 1996 13:33:36 -0800 (PST) From: Veggy Vinny <richardc@CSUA.Berkeley.EDU> To: Steve Passe <smp@csn.net> Cc: smp@FreeBSD.ORG Subject: Re: SMP Kernel problems Message-ID: <Pine.PTX.3.95.961030133159.6567R-100000@soda.CSUA.Berkeley.EDU> In-Reply-To: <199610302125.OAA00873@clem.systemsix.com>
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On Wed, 30 Oct 1996, Steve Passe wrote:
Hi Steve and everyone,
> > On Wed, 30 Oct 1996, Steve Passe wrote:
> >
> > > > It seems as of October 24, 1996's -current , compiling a SMP
> > > > kernel with CONFIG_LINUX now works but there seems to be a problem which
> > > > is experience with the SMP kernel and not the -current kernel:
> > > >
> > > > When the machine comes up and detects the hardware, it pauses at:
> > > >
> > > > WARNING: mapping PCI INT #10
> > > >
> > > > If I hit enter, it continues until it gets to
> > > >
> > > > sio1: type 16550A
> > > >
> > > > and freezes.
> > >
> > > My machine is dead righrt now so I can't check the sources to see where
> > > this message is coming from. It might be from my hacks to pci.c, or
> > > possibly Stefan has started to add the PCI support I requested (although
> > > I haven't seen a merge of -current to the SMP tree so this is doubtful)
> > > I should have my machine running by end of day.
> > >
> > > What hardware is accessed immediately prior to this message?;
> >
> > Don't remember since my friend is the one who is in front of the
> > machines 600 miles away =) and that's the only info he gave... I didn't
> > see anything committed to the list except that patch for COMPAT_LINUX
> > though.
> >
> > > By any chance, did you enable SMP_SYMIOXXX (this is not ready yet)?
> >
> > Nope.... If it was in the kernel config file, I didn't...
>
> here's the offending line in pci/pci.c:
>
> ---
> int pci_map_int (pcici_t tag, pci_inthand_t *func, void *arg, unsigned
> *maskptr)
> {
> ...
> #if defined( SMP ) && defined( SMP_SYMIOXXX )
> if (irq!=19) {printf("WARNING: mapping PCI INT #%d\n",irq);cngetc();}
> #endif /* SMP && SMP_SYMIOXXX */
> ...
Oh okay...
> ---
>
> SMP_SYMIOXXX is clearly turned on, probably in i386/include/apic.h This won't
> work for anyone but me yet, turn it off and this problem should go away.
> I am about to commit new code where all the APIC/symmetric IO code is
> conditional on "APIC_IO", ie I am going to fold "SMP_SYMIO" & "SMP_SYMIOXXX"
> into 1 define and start to request that people turn it on for testing. This
> will happen as soon as I get 1 outstanding problem with PCI resolved.
> The warning you saw is associated with the bandaid that makes it work for
> my particualr hardware.
Oh okay so after your commit, would it be turned off? I guess I
can just wait until the next merge of -current =)
Vince
GaiaNet Corporation - Unix Networking Operations - GUS Mailing Lists Admin
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