Date: Fri, 25 Oct 1996 14:47:45 -0600 From: Steve Passe <smp@csn.net> To: dg@root.com Cc: hackers@freefall.freebsd.org Subject: Re: ed0 timeouts Message-ID: <199610252047.OAA17045@clem.systemsix.com> In-Reply-To: Your message of "Fri, 25 Oct 1996 13:29:02 PDT." <199610252029.NAA08813@root.com>
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David,
>>I currently am writing code for the FreeBSD SMP kernel that will allow
>>us to use symmetric IO handling with all CPUs. This basically
>>involves changing the kernel to use a device called the "IO APIC"
>>in place of the 8259s. I now have code that does this, with all INT
>>devices working properly EXCEPT for my ed NIC card. I have tried different
>>slots and different cards, but I continue to get:
>>
>>[ date/time ] /kernel: ed0: device timeout
>>
>>I am occasionally loosing the INTs expected to be generated by ed_xmit().
>>The ed_watchdog() routine usually recovers gracefully (network actually
locked
>>twice since running this code: approx 2/3 weeks). Could someone explain
>>why the ed0 cards might loose this INT? Any clues/insight appreciated!
>
> Not much I can say about this...there isn't anything special I can think of
>about the 'ed' cards that would cause them to lose interrupts. What type of
>card do you have?
I currently am using:
ed0 at 0x300-0x31f irq 10 maddr 0xcc000 msize 16384 on isa
ed0: address 00:00:c0:e6:59:48, type WD8013EPC (16 bit)
I also tried an 8216C Ultra with the same results.
I am using the "hard config" jumper, I also tried a soft config @ IRQ5, 0xD8000
my current debug counters show:
0x2cbe calls to ed_xmit()
0x2xb7 tx INTs received
7 watchdog timeouts
in an uptime of 1 hour, 37 minutes
There is still some possibility that the 8254 clock is being mishandled.
The APIC straps it to IRQ2 and ALOT of the kernel code believes it
is at IRQ0, I could have missed one of these points. Is there anything
possible as reguards 8254 problems???
--
Steve Passe | powered by
smp@csn.net | FreeBSD
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