-> Subject: Re: 2.2.12: serial driver swapping characters?yy
->
-> > On Sun, 12 Sep 1999, Shaw Carruthers wrote:
-> > > On Sat, 11 Sep 1999 17:28:23 -0300 (EST), kiko
-> > > <kiko@radiumsystems.com.br> wrote:
This whole thread could explane my problem
2 days ago I upgraded from 2.0.37 to 2.2.6 ( then to 2.2.12 )
( along with most of my system's binarys )
now when in X my serial mouse ( 3 button mouse systems mode ) will jump left
or down when the disk or net usage gets a little higher than idle
root@potato:~# uname -a
Linux potato 2.2.12 #3 Wed Sep 15 19:06:53 NZST 1999 i486 unknown
root@potato:~# cat /proc/tty/driver/serial
serinfo:1.0 driver:4.27
0: uart:16450 port:3F8 irq:4 baud:9600 tx:0 rx:18667 oe:141
1: uart:16450 port:2F8 irq:3 baud:9600 tx:0 rx:2
2: uart:unknown port:3E8 irq:4
3: uart:16550A port:2E8 irq:5 baud:9600 tx:272177 rx:1826395 DSR
as you can see the mouse is getting overruns ( /dev/ttyS0 )
root@potato:~# cat /proc/interrupts
CPU0
0: 822304 XT-PIC timer
1: 40241 XT-PIC keyboard
2: 0 XT-PIC cascade
9: 1 XT-PIC mpu401
10: 351 XT-PIC NE2000
11: 1 XT-PIC Crystal audio controller
12: 16644 XT-PIC PS/2 Mouse
13: 0 XT-PIC fpu
14: 502182 XT-PIC ide0
15: 16031 XT-PIC ide1
NMI: 0
root@potato:~# setserial /dev/ttyS0 ; setserial /dev/ttyS1; setserial
/dev/ttyS3/dev/ttyS0, UART: 16450, Port: 0x03f8, IRQ: 4
/dev/ttyS1, UART: 16450, Port: 0x02f8, IRQ: 3
/dev/ttyS3, UART: 16550A, Port: 0x02e8, IRQ: 5, Flags: spd_hi
Where is IRQ 4 ?
is this a new serial port thing in 2.2 ?
the ioports are still there
root@potato:~# cat /proc/ioports
0000-001f : dma1
....
0278-027a : parport1
02e8-02ef : serial(set)
02f8-02ff : serial(set)
0300-031f : NE2000
03f8-03ff : serial(set)
......
I'm not umasking interupts , I was with 2.0 but I'm playing safe for a
while
root@potato:~# hdparm /dev/hda
/dev/hda:
multcount = 0 (off)
I/O support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 0 (off)
keepsettings = 0 (off)
nowerr = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 782/128/63, sectors = 6306048, start = 0
root@potato:~# gcc --version
2.7.2.3
root@potato:~# ldd -V
GNU ld 2.9.1
from .config
#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
# CONFIG_SERIAL_CONSOLE is not set
# CONFIG_SERIAL_EXTENDED is not set
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_UNIX98_PTYS is not set
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