Date: Fri, 12 Sep 1997 10:18:09 -0700 (PDT) From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com> To: karl@Mcs.Net (Karl Denninger) Cc: current@FreeBSD.ORG Subject: Re: Problems? Message-ID: <199709121718.KAA20751@GndRsh.aac.dev.com> In-Reply-To: <19970912094231.48481@Jupiter.Mcs.Net> from Karl Denninger at "Sep 12, 97 09:42:31 am"
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> Hi foolks, > > Anyone got an idea what this means? > > de1: abnormal interrupt: transmit underflow (raising TX threshold to 96|256) > de1: abnormal interrupt: transmit underflow (raising TX threshold to 8|512) > de1: abnormal interrupt: transmit underflow (raising TX threshold to 1024) > de1: abnormal interrupt: transmit underflow (switching to store-and-forward > mode It means that the DC21xxx chip could not bus master data out of memory fast enough to keep up with the transmit stream. I note in your dmesg your using the bus master IDE driver, does the problem go away when you turn this off. If so you are experiencing PCI bus mastering saturation, if not then I don't know what is causing it :-(. Ooopsss.... you don't seem to have any devices hooked to that PIIX3, any other busy PCI devices? Oh wait, you seem to have heavily edited the dmesg output, what I can't see I can't use to try and explain where the problem might be :-( > The salient parts of the boot messages are: > Copyright (c) 1992-1997 FreeBSD Inc. > Copyright (c) 1982, 1986, 1989, 1991, 1993 > The Regents of the University of California. All rights reserved. > FreeBSD 3.0-CURRENT #0: Tue Sep 9 19:20:42 CDT 1997 > karl@Codebase.mcs.net:/usr/src/sys/compile/MCS_STANDARD > CPU: Pentium Pro (199.43-MHz 686-class CPU) > Origin = "GenuineIntel" Id = 0x619 Stepping=9 > Features=0xfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV> > real memory = 134217728 (131072K bytes) > avail memory = 128565248 (125552K bytes) > Probing for devices on PCI bus 0: > Correcting Natoma config for non-SMP > chip0: <Intel 82440FX (Natoma) PCI and memory controller> rev 0x02 on pci0.0.0 > chip1: <Intel 82371SB PCI to ISA bridge> rev 0x01 on pci0.7.0 > ide_pci0: <Intel PIIX3 Bus-master IDE controller> rev 0x00 on pci0.7.1 > de0: <Digital 21140A Fast Ethernet> rev 0x22 int a irq 9 on pci0.10.0 > de0: SMC 9332BDT 21140A [10-100Mb/s] pass 2.2 > de0: address 00:e0:29:09:96:32 > de1: <Digital 21140A Fast Ethernet> rev 0x22 int a irq 10 on pci0.11.0 > de1: SMC 9332BDT 21140A [10-100Mb/s] pass 2.2 > de1: address 00:e0:29:09:94:7d > > -- > -- > Karl Denninger (karl@MCS.Net)| MCSNet - Serving Chicagoland and Wisconsin > http://www.mcs.net/~karl | T1's from $600 monthly to FULL DS-3 Service > | NEW! K56Flex modem support is now available > Voice: [+1 312 803-MCS1 x219]| 56kbps DIGITAL ISDN DOV on analog lines! > Fax: [+1 312 803-4929] | 2 FULL DS-3 Internet links; 400Mbps B/W Internal > -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation, Inc. Reliable computers for FreeBSD
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