Date: Thu, 23 Sep 2004 23:59:40 +0700 From: Pavel Gubin <pg@ie.tusur.ru> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: "Multiple entries for PCI IRQ 16" and "xlock already held" panics on 5.3-BETA(3,4,5) Message-ID: <20040923165940.GB38511@ie.tusur.ru> In-Reply-To: <200409231132.45061.jhb@FreeBSD.org> References: <20040922095257.GA81709@ie.tusur.ru> <20040923042447.GA88335@ie.tusur.ru> <200409231029.47945.jhb@FreeBSD.org> <200409231132.45061.jhb@FreeBSD.org>
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On Thu, Sep 23, 2004 at 11:32:45AM -0400, John Baldwin wrote:
> > > I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#
> > > INT active-lo level 0 2:A 2 16
> > > INT active-lo level 0 2:A 2 23
> >
> > This is the real bug and I guess I can improve the message. Then problem
> > is not two lines for IRQ 16, but that the PCI interrrupt for bus 0, device
> > 2, pin #A has two different IRQs listed, so we don't know which one we are
> > supposed to use. This is definitely a BIOS bug and your motherboard
> > manufacturer needs to harassed into giving you a BIOS update.
>
> Also, I have a patch to make the error message more useful if you want to try
> it:
Ok, thanks, I'll try it tomorrow, but even without trying I can see it's
much more informative :)
> --- //depot/vendor/freebsd/src/sys/i386/i386/mptable.c 2004/07/01 07:50:36
> +++ //depot/user/jhb/acpipci/i386/i386/mptable.c 2004/09/23 14:34:52
> @@ -935,7 +935,9 @@
> if (args->vector == vector)
> return;
> KASSERT(args->vector == -1,
> - ("Multiple entries for PCI IRQ %d", args->vector));
> + ("Multiple IRQs for PCI interrupt %d.%d.INT%c: %d and %d\n",
> + args->bus, args->irq >> 2, 'A' + (args->irq & 0x3), args->vector,
> + vector));
> args->vector = vector;
> }
--
Pavel Gubin
TUSC&R / Industrial Electronics dept / System Administrator
2:5005/14@fidonet / Phone +7-3822-423067 / ICQ 28835566
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