APIC problem?

[Igor Sysoev]

On Sun, 7 Dec 2003, Pavel Kuz wrote:

> I've faced the following problem under 4.9-RELEASE-p1, my system works fine in single processor mode, but when I load kernel with SMP enabled I get 
> /kernel: fxp0: device timeout
> messages and it looks like fxp does not work at all.
> I've found description of the similar problem at 
> http://www.geocrawler.com/mail/thread.php3?subject=For+those+with+P4+SMP+problems..&list=171
> , but I did not find how to fix it.

It seems that it's APIC problem - both fxp0 and em0 are on second PCI
bus pci1 and its interrupts are not properly routed:

> Dec  2 14:27:28 myhost /kernel: fxp0: <Intel 82551 Pro/100 Ethernet> port 0xbc00- 0xbc3f mem 0xfeaa0000-0xfeabffff,0xfeafe000-0xfeafefff irq 5 at device 7.0 on pci1

> Dec  2 14:27:28 myhost /kernel: em0: <Intel(R) PRO/1000 Network Connection, Versi on - 1.7.16> port 0xb400-0xb43f mem 0xfea80000-0xfea9ffff irq 5 at device 8.0 on pci1

You can try FreeBSD 5.2-RC - it has new APIC code.


Igor Sysoev
http://sysoev.ru/en/