Date: Tue, 1 Dec 2009 15:11:55 -0800 (PST) From: Ravi Shankar <ksravi76@yahoo.com> To: freebsd-hackers@freebsd.org Subject: Regarding enabling IOAPIC on Intel Dual core processor based boards having Broadcom controller Message-ID: <734342.41538.qm@web33202.mail.mud.yahoo.com>
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Hi, We are using Freebsd6.2 bases OS on our LV 5200 Series Intel Dual Core Xeo= n bases processor(Wolfdale-DP-ULV). In the carrier board hosting the proces= sor we have BCM5703 controller. Currently we are using only one core in 32 bit mode and planning to use dua= l 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 ir= q17 ( remember without IOAPIC enable there are not IRQ assignments beyond I= RQ16),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 h= w.pci8.9.INTA.irq=3D=E2=80=9D17=E2=80=9D" , 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?) NOTE: Other devices ( Intel controller (em driver)) are working fine only t= his BCM5703 is having issues with IOAPIC Thanks, Ravi=0A=0A=0A
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