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Date:      Thu, 4 Jan 2001 21:09:34 +0100 (CET)
From:      =?ISO-8859-1?Q?G=E9rard_Roudier?= <groudier@club-internet.fr>
To:        Matthew Jacob <mjacob@feral.com>
Cc:        Yoriaki FUJIMORI <fujimori@grafin.fujimori.cache.waseda.ac.jp>, freebsd-alpha@FreeBSD.ORG
Subject:   Re: bus_dmamap_load 
Message-ID:  <Pine.LNX.4.10.10101042102170.1781-100000@linux.local>
In-Reply-To: <Pine.BSF.4.21.0101040942570.11733-100000@beppo.feral.com>

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On Thu, 4 Jan 2001, Matthew Jacob wrote:

> The trick now is to figure out who is passing a bogus value
> to bus_dmamap_load. The value of buf_len (0xfaae8000) looks
> suspicious.
>=20
> Since I hve essentially the same h/w (except for the symbios card) in a P=
C164
> that runs 4.2 just fine, I would suspect the sym driver. But needs to hap=
pen
> is some better debugging for this. I take it that you aren't really runni=
ng on
> this h/w yet (i.e, you haven't been able to install)?

Btw, you missed the `de' driver that also performs bus_dmamap_load() on
mbuf's as a possible candidate.

Would be interesting to shut the `de' board and to give a try with a
different network board long enough to see if it makes difference.

  G=E9rard.

> -matt
>=20
>=20
>=20
> On Thu, 4 Jan 2001, Yoriaki FUJIMORI wrote:
>=20
> >=20
> > Thank you for your responce. =20
> > I use one noname DEC-based NIC.  The scsi card is one from Intraserver.
> >=20
> > In the following I attached the result of `dmesg'.
> >=20
> > ------------------------------------------
> > Unrecognized boot flag '0'.
> > Copyright (c) 1992-2000 The FreeBSD Project.
> > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 199=
4
> > =09The Regents of the University of California. All rights reserved.
> > FreeBSD 4.2-RELEASE #0: Tue Nov 21 09:42:09 GMT 2000
> >     jkh@rawhide.osd.bsdi.com:/usr/src/sys/compile/GENERIC
> > EB164
> > Digital AlphaPC 164 480 MHz, 480MHz
> > 8192 byte page size, 1 processor.
> > CPU: EV56 (21164A) major=3D7 minor=3D1 extensions=3D0x1<BWX>
> > OSF PAL rev: 0x1000800020117
> > real memory  =3D 534339584 (521816K bytes)
> > avail memory =3D 513990656 (501944K bytes)
> > Preloaded elf kernel "kernel" at 0xfffffc0000766000.
> > md0: Malloc disk
> > cia0: ALCOR/ALCOR2, pass 3
> > cia0: extended capabilities: 21<DWEN,BWEN>
> > pcib0: <2117x PCI host bus adapter> on cia0
> > pci0: <PCI bus> on pcib0
> > de0: <Digital 21140A Fast Ethernet> port 0x10100-0x1017f mem 0x84061100=
-0x8406117f irq 2 at device 5.0 on pci0
> > de0: interrupting at CIA irq 2
> > de0: DEC DE500-AA 21140A [10-100Mb/s] pass 2.0
> > de0: address 00:00:f8:1e:81:5a
> > sym0: <875> port 0x10000-0x100ff mem 0x84060000-0x84060fff,0x84061000-0=
x840610ff irq 0 at device 6.0 on pci0
> > sym0: Symbios NVRAM, ID 7, Fast-20, SE, parity checking
> > sym0: open drain IRQ line driver, using on-chip SRAM
> > sym0: using LOAD/STORE-based firmware.
> > sym0: interrupting at CIA irq 0
> > pci0: <S3 968 graphics accelerator> at 7.0 irq 1
> > isab0: <Intel 82378ZB PCI to ISA bridge> at device 8.0 on pci0
> > isa0: <ISA bus> on isab0
> > atapci0: <CMD 646 ATA controller> port 0x10180-0x1018f irq 5 at device =
11.0 on pci0
> > fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on is=
a0
> > fdc0: interrupting at ISA irq 6
> > fdc0: FIFO enabled, 8 bytes threshold
> > fd0: <1440-KB 3.5" drive> on fdc0 drive 0
> > atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
> > atkbd0: <AT Keyboard> irq 1 on atkbdc0
> > atkbd0: interrupting at ISA irq 1
> > psm0: <PS/2 Mouse> irq 12 on atkbdc0
> > psm0: interrupting at ISA irq 12
> > psm0: model Generic PS/2 mouse, device ID 0
> > vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on is=
a0
> > sc0: <System console> on isa0
> > sc0: VGA <16 virtual consoles, flags=3D0x200>
> > mcclock0: <MC146818A real time clock> at port 0x70-0x71 on isa0
> > sio0 at port 0x3f8-0x3ff irq 4 on isa0
> > sio0: type 16550A
> > sio0: interrupting at ISA irq 4
> > sio1: reserved for low-level i/o
> > ppc0: <Parallel port> at port 0x3bc-0x3bf irq 7 on isa0
> > ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
> > plip0: cannot reserve interrupt, failed.
> > lpt0: <Printer> on ppbus0
> > lpt0: Polled port
> > ppi0: <Parallel I/O> on ppbus0
> > ppc0: interrupting at ISA irq 7
> > Timecounter "alpha"  frequency 480000416 Hz
> > Waiting 15 seconds for SCSI devices to settle
> > (noperiph:sym0:0:-1:-1): SCSI BUS reset delivered.
> > de0: enabling Full Duplex 100baseTX port
> > Mounting root from ufs:/dev/da0a
> > cd0 at sym0 bus 0 target 5 lun 0
> > cd0: <PLEXTOR CD-ROM PX-40TW 1.01> Removable CD-ROM SCSI-2 device=20
> > cd0: 40.000MB/s transfers (20.000MHz, offset 15, 16bit)
> > cd0: Attempt to query device size failed: NOT READY, Medium not present
> > da0 at sym0 bus 0 target 0 lun 0
> > da0: <IBM DNES-309170W SA30> Fixed Direct Access SCSI-3 device=20
> > da0: 40.000MB/s transfers (20.000MHz, offset 16, 16bit), Tagged Queuein=
g Enabled
> > da0: 8748MB (17916240 512 byte sectors: 255H 63S/T 1115C)
> > bus_dmamap_load: Too many segs! buf_len =3D 0xfaae8000
> > bus_dmamap_load: Too many segs! buf_len =3D 0xfaae8000
> > bus_dmamap_load: Too many segs! buf_len =3D 0xfaae8000
> > bus_dmamap_load: Too many segs! buf_len =3D 0xfaae8000
> > bus_dmamap_load: Too many segs! buf_len =3D 0xfaae8000
> > bus_dmamap_load: Too many segs! buf_len =3D 0xfaae8000
> > bus_dmamap_load: Too many segs! buf_len =3D 0xfaae8000
> > bus_dmamap_load: Too many segs! buf_len =3D 0xfaae8000
> > bus_dmamap_load: Too many segs! buf_len =3D 0xfaae8000
> > bus_dmamap_load: Too many segs! buf_len =3D 0xfaae8000
> >=20
> > --------------------------------------------------------
> >=20
> > Thanks for your attention.
> > Yoriaki Fujimori
> >=20
>=20
>=20
>=20
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