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From: D. Rock <rock@wurzelausix.CS.Uni-SB.DE>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: 2.2.1-RELEASE: panic at floppy access
Date: 3 Apr 1997 17:35:30 GMT
Organization: Universität des Saarlandes
Lines: 109
Message-ID: <5i0pp2$ac4$1@pf1.phil.uni-sb.de>
References: <5hbo0e$kto$1@pf1.phil.uni-sb.de> <5hojb0$ai9@uriah.heep.sax.de>
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Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:38494
In Artikel <5hojb0$ai9@uriah.heep.sax.de> schrieb J Wunsch <j@uriah.heep.sax.de>:
: D. Rock <rock@wurzelausix.CS.Uni-SB.DE> wrote:
: > The error is fairly easy reproductable by first accessing the
: > drive without a disk inserted, insert disk, do again:
: > % mdir
: > .... I/O error
: > [slide in disk]
: > % mdir
: > panic: general protection fault
: This is more likely to be a machine problem than a floppy driver one.
I suspect it's a hardware fault. I was able to reproduce the same error
on a totally different machine (the floppy port of an Adaptec 1542B,
also detected as a NEC 765).
So it seems to be more a problem of the handling of a "NEC 765" in the
floppy driver?
Daniel
Just to be complete, here is the boot output of the 2nd machine:
FreeBSD 2.2-STABLE #0: Tue Apr 1 03:39:28 CEST 1997
root@abrams:/usr/src/sys/compile/MODEM
CPU: i486 DX2 (486-class CPU)
Origin = "GenuineIntel" Id = 0x435 Stepping=5
Features=0x3<FPU,VME>
real memory = 16777216 (16384K bytes)
avail memory = 14958592 (14608K bytes)
Probing for devices on the ISA bus:
ed0 at 0x300-0x31f irq 5 on isa
ed0: address 00:00:6e:20:fe:af, type NE2000 (16 bit)
sio0 at 0x3f8-0x3ff irq 4 on isa
sio0: type 8250
sio1 at 0x2f8-0x2ff irq 3 on isa
sio1: type 16550A
sio2 at 0x3e8-0x3ef irq 10 on isa
sio2: type 16550A
sio3 at 0x2e8-0x2ef irq 12 on isa
sio3: type 16550A
sio4 at 0x3e0-0x3e7 irq 15 on isa
sio4: type 16550A
pca0 on motherboard
pca0: PC speaker audio driver
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: NEC 765
fd0: 1.2MB 5.25in
aha0 at 0x330-0x333 irq 11 drq 5 on isa
(aha0:0:0): "IBM 0662SW1 !X 2 23" type 0 fixed SCSI 2
sd0(aha0:0:0): Direct-Access 1003MB (2055035 512 byte sectors)
sd0(aha0:0:0): with 4119 cyls, 5 heads, and an average 99 sectors/track
npx0 on motherboard
npx0: INT 16 interface
RTC BIOS diagnostic error 20<config_unit>
IP packet filtering initialized, divert disabled, unlimited logging
WARNING: / was not properly dismounted.
The config file:
machine "i386"
cpu "I486_CPU"
ident MODEM
maxusers 8
config kernel root on sd0
options "COMPAT_43"
options SYSVSHM
options SYSVSEM
options SYSVMSG
options KTRACE
options UCONSOLE
options USERCONFIG
options VISUAL_USERCONFIG
options INET
pseudo-device ether
pseudo-device loop
pseudo-device ppp 4
pseudo-device bpfilter 4
options MROUTING
options IPFIREWALL
options IPFIREWALL_VERBOSE
options FFS
options NFS
options NFS_NOSERVER
options PROCFS
pseudo-device pty 4
pseudo-device speaker
pseudo-device log
pseudo-device snp 2
controller isa0
options "AUTO_EOI_1"
device npx0 at isa? port "IO_NPX" irq 13 vector npxintr
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
disk fd0 at fdc0 drive 0
controller scbus0
device sd0
options SCSI_REPORT_GEOMETRY
options BOUNCE_BUFFERS
controller aha0 at isa? port "IO_AHA0" bio irq ? drq 5 vector ahaintr
device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr
device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr
device sio2 at isa? port "IO_COM3" tty irq 10 vector siointr
device sio3 at isa? port "IO_COM4" tty irq 12 vector siointr
device sio4 at isa? port 0x3e0 tty irq 15 vector siointr
options COMCONSOLE
device ed0 at isa? port 0x300 net irq 5 iomem 0xca000 vector edintr
device pca0 at isa? port IO_TIMER1 tty