Date: Tue, 5 Apr 2005 21:47:59 +0200 From: Antoine Brodin <antoine.brodin@laposte.net> To: John Baldwin <jhb@FreeBSD.org> Cc: nate@root.org Subject: Re: Interrupt storm Message-ID: <20050405214759.3921d21d.antoine.brodin@laposte.net> In-Reply-To: <200504051449.30871.jhb@FreeBSD.org> References: <b37cb09705032911295ce15f84@mail.gmail.com> <200504051349.13620.jhb@FreeBSD.org> <20050405204106.15e9d993.antoine.brodin@laposte.net> <200504051449.30871.jhb@FreeBSD.org>
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John Baldwin <jhb@FreeBSD.org> wrote: > On Tuesday 05 April 2005 02:41 pm, Antoine Brodin wrote: > > John Baldwin <jhb@FreeBSD.org> wrote: > > > Ok, I see the issue now. The problem is that the BIOS sets the IRQ > > > registers in the PCI devices to values that don't match how the links are > > > programmed and we tend to trust the BIOS over the links in those cases. > > > Can you tell me what IRQ sk0 gets if you don't use ACPI? Does it get 5 > > > or 9? If it gets 9, does it work ok? > > > > > > You can try this patch for ACPI. Unfortunately, some BIOSes lie when you > > > ask a link which IRQ it is routed to, so I'm not sure if this patch can > > > be committed as is. Nate, do you know if such BIOSen only return no IRQ > > > at all (0 or 255) when they lie rather than a bogus "valid" IRQ? > > > > Without ACPI, sk0 gets irq 5 and it works ok. > > > > With your patch and ACPI, sk0 no longer timeouts, and it's usable. > > But I still have interrupt storms. > > dmesg: http://bsd.miki.eu.org/~antoine/current+acpi+patch.dmesg > > Well, all the interrupts are now routed the same as with the old ACPI code. > Perhaps, can you try commenting out the code that calls _DIS in > acpi_pci_link_attach()? Specifically, here: > And let me know if that makes a difference. Thanks ! That makes everything work well ! Also, backing out your previous change and only #if0ing the code that calls _DIS makes everything work well too. So I guess the _DIS methods of my BIOS are the culprit. Antoine
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