Subject: Re: More com driver changes; need testers
To: None <mycroft@gnu.ai.mit.edu>
From: Markus Kilbinger <kilbi@rad.rwth-aachen.de>
List: port-i386
Date: 04/30/1997 21:16:52
>>>>> "Charles" == Charles M Hannum <mycroft@gnu.ai.mit.edu> writes:

    Charles> I've made some more changes to the com driver, which
    Charles> should fix the problems a few people have observed with
    Charles> characters being dropped.  However, I can't adequately
    Charles> test them here at the moment.  If you've been having this
    Charles> problem, please try the patch below.

Hmm, I tried the patch, but it didn't change anything obviously. There
are still lost chars on output decreasing dramatically the final
transmission rate even at a serial speed down to 38400 baud. My
machine:

NetBSD 1.2D (MOGLI) #15: Wed Apr 30 07:49:12 MEST 1997
    kilbi@pcwork3.radiologie:/usr/src/sys/arch/i386/compile/MOGLI
cpu0: family 5 model 2 step b
cpu0: Intel Pentium (P54C) (586-class)
real mem  = 66715648
avail mem = 60760064
using 840 buffers containing 3440640 bytes of memory
mainbus0 (root)
pci0 at mainbus0 bus 0: configuration mode 1
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82437FX (Triton) PCI, Cache, and DRAM Controller (rev. 0x02)
pcib0 at pci0 dev 7 function 0
pcib0: Intel 82471FB (Triton) PCI-ISA Bridge (rev. 0x02)
Intel 82438 (Triton) IDE controller (IDE mass storage, interface 0x80, revision 0x02) at pci0 dev 7 function 1 not configured
S3 86C968-0 ("Vision968") (VGA display) at pci0 dev 10 function 0 not configured
ahc0 at pci0 dev 11 function 0
ahc0: interrupting at irq 11
ahc0: aic7870 Single Channel, SCSI Id=7, 16 SCBs
scsibus0 at ahc0 channel 0: 8 targets
ahc0: target 0 synchronous at 10.0MHz, offset = 0xf
sd0 at scsibus0 targ 0 lun 0: <QUANTUM, XP34301, 1051> SCSI2 0/direct fixed
sd0: 4106MB, 4076 cyl, 20 head, 103 sec, 512 bytes/sec
ahc0: target 4 synchronous at 10.0MHz, offset = 0x8
cd0 at scsibus0 targ 4 lun 0: <TOSHIBA, CD-ROM XM-5701TA, 0167> SCSI2 5/cdrom removable
ahc0: target 6 synchronous at 5.0MHz, offset = 0x8
st0 at scsibus0 targ 6 lun 0: <HP, HP35480A, A> SCSI2 1/sequential removable
st0: density code 0x13, variable blocks, write-enabled
isa0 at pcib0
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
lpt0 at isa0 port 0x378-0x37b irq 7
ed0 at isa0 port 0x300-0x31f iomem 0xd8000-0xdbfff irq 5
ed0: address 00:00:c0:ae:5f:ae, type SMC8216/SMC8216C (16-bit) aui
npx0 at isa0 port 0xf0-0xff: using exception 16
pc0 at isa0 port 0x60-0x6f irq 1: color
spkr0 at pc0 port 0x61
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
fd1 at fdc0 drive 1: density unknown
biomask 840 netmask 860 ttymask 8e2
boot device: sd0
root on sd0a swap on sd0b
root file system type: ffs

Markus.