Messages in this thread |  | | | Date | Sun, 18 Apr 1999 15:54:24 +0000 | | From | Gert van der Knokke <> | | Subject | Re: Linux 2.2.5 and PCI 3Com Vortex |
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Alan Cox wrote:
> > What is odd is that when my 2.0.35 kernel boots, it tells me that my > > on-board PCI ethernet device (3Com Vortex) is on IRQ 14. When the > > 2.2.5 kernel boots, it tells me that it is on IRQ 19, and funnily enough, > > my ethernet device doesn't work right. It sends outbound ping packets, > > but never believes it receives any incoming frames--the classic symptom of > > interrupts being lost. > > > > Does anyone have any tips on how to troubleshoot this? > > The 2.2 kernel tries to use the I/O APIC to do interrpt distribution. Not > every vendor seems to get their BIOS tables right. Try using the > "noapic" boot option > > It'll be back on 14, back on irq's to the boot cpu only and hopefully back > working >
Hi,
Reading this message I also have a question about this IO-Apic system. I've set up a Linux system on a Dell Poweredge 2300 Dual P3-450 system with the PERC S/2 raidcontroller, the system runs fine with RH5.2 and kernel 2.2.3 but the IRQ numbers seem odd:
CPU0 CPU1 0: 5410252 5404197 IO-APIC-edge timer 1: 0 8 IO-APIC-edge keyboard 2: 0 0 XT-PIC cascade 8: 1 0 IO-APIC-edge rtc 12: 0 0 IO-APIC-edge PS/2 Mouse 13: 1 0 XT-PIC fpu 16: 4442 4490 IO-APIC-level aic7xxx, aic7xxx 18: 206824 206795 IO-APIC-level megaraid 20: 1318743 1318680 IO-APIC-level Intel EtherExpress Pro 10/100 Ethernet
Still, everything works OK, should I be concerned about these numbers ?
Gert
-- ====================================================================== = LINUX = Unix The Next Generation ................................ = = gertk@rendo.dekooi.nl running Linux on AMD and Alpha = ======================================================================
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