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 -----BEGIN PGP PUBLIC KEY BLOCK----- Version: 2.6.2 mQCNAzHe7tEAAAEEAM274wAEEdP+grIrV6UtBt54FB5ufifFRA5ujzflrvlF8aoE 04it5BsUPFi3jJLfvOQeydbegexspPXL6kUejYt2OeptHuroIVW5+y2M2naTwqtX WVGeBP6s2q/fPPAS+g+sNZCpVBTbuinKa/C4Q6HJ++M9AyzIq5EuvO0a8Rr9AAUR tBlTdGV2ZSBQYXNzZSA8c21wQGNzbi5uZXQ+ =ds99 -----END PGP PUBLIC KEY BLOCK-----
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