Date: Fri, 12 Sep 1997 12:25:33 -0500 From: Karl Denninger <karl@Mcs.Net> To: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com> Cc: Karl Denninger <karl@Mcs.Net>, current@FreeBSD.ORG Subject: Re: Problems? Message-ID: <19970912122533.15113@Jupiter.Mcs.Net> In-Reply-To: <199709121718.KAA20751@GndRsh.aac.dev.com>; from Rodney W. Grimes on Fri, Sep 12, 1997 at 10:18:09AM -0700 References: <19970912094231.48481@Jupiter.Mcs.Net> <199709121718.KAA20751@GndRsh.aac.dev.com>
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On Fri, Sep 12, 1997 at 10:18:09AM -0700, Rodney W. Grimes wrote:
> > 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 :-(
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
ahc0: <Adaptec 2940 Ultra SCSI host adapter> rev 0x00 int a irq 11 on pci0.12.0
ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs
ahc0: waiting for scsi devices to settle
scbus0 at ahc0 bus 0
sd0 at scbus0 target 0 lun 0
sd0: <QUANTUM XP32275W LXY4> type 0 fixed SCSI 2
sd0: Direct-Access 2170MB (4445380 512 byte sectors)
sd0: with 5899 cyls, 5 heads, and an average 150 sectors/track
sd1 at scbus0 target 1 lun 0
sd1: <SEAGATE ST31200N 8648> type 0 fixed SCSI 2
sd1: Direct-Access 1006MB (2061108 512 byte sectors)
sd1: with 2700 cyls, 9 heads, and an average 84 sectors/track
sd2 at scbus0 target 3 lun 0
sd2: <SEAGATE ST15230N 0638> type 0 fixed SCSI 2
sd2: Direct-Access 4095MB (8386733 512 byte sectors)
sd2: with 3992 cyls, 19 heads, and an average 110 sectors/track
vga0: <VGA-compatible display device> rev 0x00 on pci0.14.0
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
ed0 not found at 0x280
ed1 not found at 0x300
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 16550A
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
sio2: disabled, not probed.
sio3: disabled, not probed.
lpt0 at 0x378-0x37f irq 7 on isa
lpt0: Interrupt-driven port
lp0: TCP/IP capable interface
lpt1 not found
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 72065B
fd0: 1.44MB 3.5in
wdc0 not found at 0x1f0
aha0 not found at 0x330
aic0 not found at 0x340
npx0 on motherboard
npx0: INT 16 interface
ccd0-3: Concatenated disk drivers
de1: enabling 100baseTX port
de0: enabling 10baseT port
There's one disk adapter and two Fast Ethernet cards on the bus (including
one at 100BaseTX); other than that, nothing.
de0 doesn't produce this, but its running 10BaseT. de1 does, and its running
in fast mode.
Any other ideas?
--
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