Date: Wed, 17 Apr 1996 11:11:34 -0700 (PDT) From: Doug White <dwhite@riley-net170-164.uoregon.edu> To: Tony Kimball <alk@Think.COM> Cc: current@freefall.freebsd.org Subject: Re: EtherExpress16 problems Message-ID: <Pine.BSF.3.91.960417110844.5027L-100000@riley-net170-164.uoregon.edu> In-Reply-To: <199604171849.NAA25424@compound.Think.COM>
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On Wed, 17 Apr 1996, Tony Kimball wrote: > > ix0 at 0x210-0x21f irq 4 maddr 0xd0000 msize 32768 on isa > > ix0: address 00:aa:00:37:06:87 > > I was using irq 10, but moved things around because I was experiencing > the symptoms already described. I know that 4 is free because I have > disabled com1 in the bios in order to free an interrupt. ix0 is now > up, but essentially quiescent: Hm. My next question is if you have a broken card. > > ; vmstat -i > interrupt total rate > clk0 irq0 4670267 100 > rtc0 irq8 5976524 127 > fdc0 irq6 1 0 > aha0 irq11 45919 0 > sc0 irq1 42722 0 > sio1 irq3 1986304 42 > mse0 irq5 2935141 62 > ix0 irq4 9430 0 > sb0 irq10 1 0 > Total 15666309 335 > > These problems began within the last week (running current). I intend > eventually to resolve them by working through the kernel source > changes, but I was hoping someone might have short-cut info... I threw out a basic answer, and forgot this is current :-) I think I'll leave you to that, then. > > (Incidentally, I do not understand about IRQs 2 and 9. Is there a > document I might read? Are they available for assignment to devices, > generally?) The book "Running FreeBSD" has a good discussion on it. The 2/9 is a hack to support 16 bit interrupts. Back in the old days of XTs they only had 8 bit interrupts, and when 16 bit came they decided to cascase IRQ 2 to 9. Don't ask me why. :) Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major
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