Date: Wed, 2 Dec 2009 09:39:28 -0500 From: John Baldwin <jhb@freebsd.org> To: Ravi Shankar <toksravi@gmail.com> Cc: freebsd-smp@freebsd.org Subject: Re: Regarding enabling IOAPIC on Intel Dual core processor based boards having Broadcom controller Message-ID: <200912020939.28152.jhb@freebsd.org> In-Reply-To: <fc99a8760912011400o6f436f3cwfd5df7be4eb32ebf@mail.gmail.com> References: <fc99a8760912011400o6f436f3cwfd5df7be4eb32ebf@mail.gmail.com>
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On Tuesday 01 December 2009 5:00:06 pm Ravi Shankar wrote: > Hi, > > We are using Freebsd6.2 bases OS on our LV 5200 Series Intel Dual Core Xeon > bases processor(Wolfdale-DP-ULV). In the carrier board hosting the processor > we have BCM5703 controller. > Currently we are using only one core in 32 bit mode and planning to use dual > core where we need to enable IOAPIC. When IOAPIC is not enabled I see the > bcm/bge driver is attached to IRQ10 and everything works fine, but when I > enable IOAPIC I still see the boot msgs show that bge is attached to irq10 > but the Broadcom controller does not come up. I found interrupt storm on > irq17 ( remember without IOAPIC enable there are not IRQ assignments beyond > IRQ16),looks like the controller is interrupting on 17 while driver waits on > 10. > > When I stop and loader and assign it manually using config command "set > hw.pci8.9.INTA.irq=”17”" , everything works fine. Would be great if some one > can throw some light on this IRQ mapping when IOAPIC is enabled and possible > fix ( Software or BIOS?) This sounds like a BIOS issue. Are you using ACPI? If so, can you provide the output of 'acpidump -t' along with a dmesg? If you aren't using ACPI, can you provide the output of 'mptable' along with a dmesg? -- John Baldwin
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