Serial Port Issue with FC3 and dosemu 1.3.3

Serial Port Issue with FC3 and dosemu 1.3.3

[Karl Swisher]

Hello,
	Have had dosemu 1.2.1 on a RH9  and 1.2.2 on an FC3 machine running the 
same program on dosemu.  The 1.2.2 machine replaced the 1.2.1 machine. 
This has been working good for several months.  The 1.2.1 machine was 
wiped clean and FC3 was installed and yum upgraded to the latest for 
FC3.  The current 1.2.2 FC3 machine has not been upgraded for sometime 
but has other issues, maybe a failing HD.  Need to swap it out with the 
original one upgraded to FC3 and 1.3.3.  Have serial port issues now 
that I didn't have before.

	Have the sudoers working. Have /var/lock/tty.... working.  The program 
running on top of dosemu even configures the port properly (baud, data 
bits, ect....). After the program is running I can type 'cat /dev/ttyS0' 
in a shell and see the correct data streaming in.  However the serial 
data never gets back to the program and the program times out.

	It appears the problem only occurs after upgrading FC3 at some point. 
dosemu 1.2.1 and 1.2.2 also exhibit the same behavior as 1.3.3 now on 
this FC3 machine.  The current working FC3 machine with 1.2.2 was 
upgraded a few months ago right before it was installed and not since.

	Below is most of the boot.log.  Much of the repeat text I cut out to 
save space.  The error seems to be here:

   SER0: Interrupt 12 (1) cannot be requested: enable=0 IER=0x0


       Any help will be appreciated. I've also tried this on a FC4 
machine with the same results.

Thanks
Karl


CONF: config variable parser_version_3 set
CONF: config variable c_system set
CONF: Parsing built-in dosemu.conf file.
CONF: config variable version_3_style_used set
CONF: Parsing built-in global.conf file.
CONF: config variable version_3_style_used unset
CONF: config variable version_3_style_used set
CONF: opened include file /etc/dosemu/dosemu.conf
CONF: closed include file /etc/dosemu/dosemu.conf
CONF: mapping driver = 'auto'
debug flags: -D9+cis
CONF: Disabling use of pentium timer
CONF: dosbanner on
CONF: timer freq=18, update=54925
CONF: CPU set to 386
CONF: CPUEMU set to 0 for 386
CONF: 8192k bytes XMS memory
CONF: 2048k bytes EMS memory
CONF: EMS-frame = 0xe400
CONF: DPMI-Server on (0x5000)
CONF: DPMI base addr = 0x10000000
CONF: PM DOS API Translator on
CONF: No DJGPP NULL deref checks: off
CONF: dosemu running on X
CONF: x keycode keycode 2 mode13fact 2 gamma 100 font '' mgrab_key "Home"
CONF: time mode = 'bios'
SER: directory /var/lock namestub LCK.. binary No
SER: /dev/ttyS0 port 0 int 0
SER: /dev/ttyS1 port 0 int 0
CONF: Keyboard-layout keyb-user
device: /dev/fd0 type 2 h: 0  s: 0   t: 0 floppy A:
CONF: fastfloppy = 1
CONF: IPX support off
CONF(LPT0) f: (null)   c: lpr -PLogPrinter  t: 20  port: 0
CONF(LPT1) f: (null)   c: lpr -PTicketPrinter  t: 20  port: 0
CONF: not allowing speaker port access
CONF: Packet Driver enabled.
device: /home/scalemaster/.dosemu/drives/c type 4 h: -1  s: -1   t: -1 
drive C:
CONF: config variable c_system unset
CONF: not enough privilege to define config variable c_user
Linux kernel 2.6.12; CPU speed is 551313000 Hz
CPU-EMU speed is 551 MHz
CONF: mostly running as USER: uid=500 (cached 500) gid=14 (cached 14)
dumping the current runtime configuration:
Version: dosemu-1.3.3.0 versioncode = 0x01030300

Running Kernel Version: linux-2.6.12
cpu 386
realcpu 586
CPUclock 551.313MHz
cpu_spd 0x76df61
cpu_tick_spd 0x8dd62d
pci 0
rdtsc 0
mathco 1
smp 0
cpuspeed 551
cpuemu 0
mappingdriver auto
hdiskboot 1
mem_size 640
ext_mem 8192
ems_size 0x800
ems_frame 0xe400
xms_size 0x2000
max_umb 0x0
dpmi 0x5000
dpmi_base 0x10000000
pm_dos_api 1
ignore_djgpp_null_derefs 0
mapped_bios 0
vbios_file
vbios_copy 0
vbios_seg 0xc000
vbios_size 0x10000
console 0
console_keyb 0
console_video 0
kbd_tty 0
exitearly 0
fdisks 1
hdisks 1
bootdisk 0
term_esc_char 0x1e
term_color 1
term_updatefreq 4
X_updatelines 25
X_updatefreq 5
xterm_title
X_display ""
X_title "DOS in a BOX"
X_icon_name "xdosemu"
X_title_show_appname 1
X_blinkrate 12
X_sharecmap 0
X_mitshm 1
X_fixed_aspect 1
X_aspect_43 0
X_lin_filt 0
X_bilin_filt 0
X_mode13fact 2
X_winsize_x 0
X_winsize_y 0
X_gamma 100
X_fullscreen 0
vgaemu_memsize 0x1000
vesamode_list (nil)
X_lfb 1
X_pm_interface 1
X_keycode 2
X_font ""
X_mgrab_key "Home"
X_background_pause 0
config.X 1
hogthreshold 1
chipset "plainvga"
cardtype "VGA"
pci_video 0
fullrestore 0
gfxmemsize 256
vga 0
dualmon 0
force_vt_switch 0
speaker "emulated"
update 54925
freq 18
tty_lockdir "/var/lock"
tty_lockfile "LCK.."
config.tty_lockbinary 0
num_ser 2
num_lpt 2
fastfloppy 1
full_file_locks 0
emusys ""
emuini ""
dosbanner 1
vbios_post 0
detach 0
debugout ""
debug_flags 
"-#-A-C-D-E-I-M-P-Q-R-S-T-W-X-Z-a9c-d-e-g-h9i-j-k-m-n-p-r9s-u-v+w-x"
keytable not setup yet
pre_stroke ""
irqpassing= none
hardware_ram: no
ipxsup 0
vnet 2
pktflags 0x0
LPT1 command "lpr -PLogPrinter"  timeout 20  device ""  baseport 0x378
LPT2 command "lpr -PTicketPrinter"  timeout 20  device ""  baseport 0x278
feature_0 0
feature_1 0
feature_2 0
feature_3 0
feature_4 0
feature_5 0
feature_6 0
feature_7 0
feature_8 0
feature_9 0
feature_10 0
feature_11 0
feature_12 0
feature_13 0
feature_14 0
feature_15 0

SOUND:
sb_base 0x220
sb_dma 1
sb_hdma 5
sb_irq 5
mpu401_base 0x330
sb_dsp "/dev/dsp"
sb_mixer ""
sound_driver "oss"

SOUND_OSS:
oss_min_frags 0x4
oss_max_frags 0x20
oss_stalled_frags 0x2
oss_do_post 0
oss_min_extra_frags 0x2
oss_dac_freq 6000

cli_timeout 10

pic_watchdog 50

JOYSTICK:
joy_device0 "/dev/js0"
joy_device1 "/dev/js1"
joy_dos_min 1
joy_dos_max 150
joy_granularity 1
joy_latency 1
DBG_FD already set
DOSEMU-1.3.3.0 is coming up on Linux version 2.6.12-1.1381_FC3
CONF: reserving 640Kb at 0x00000 for 'd' (Base DOS memory (first 640K))
CONF: reserving 48Kb at 0xF4000 for 'r' (Dosemu reserved area)
major = 136 minor = 5
PORT: registered "8254 Timer0" handle 0x06 [0x0040-0x0040] fd=-1
PORT: registered "8254 Timer1" handle 0x07 [0x0041-0x0041] fd=-1
PORT: registered "8254 Timer2" handle 0x08 [0x0042-0x0042] fd=-1
PORT: registered "8254 Ctrl02" handle 0x09 [0x0043-0x0043] fd=-1
CONF: reserving 128Kb at 0xA0000 for 'v' (Video memory)
PORT: registered "8042 Keyboard data" handle 0x0a [0x0060-0x0060] fd=-1
PORT: registered "8042 Keyboard command" handle 0x0b [0x0064-0x0064] fd=-1
PORT: registered "Keyboard controller port B" handle 0x0c 
[0x0061-0x0061] fd=-1
PORT: registered "CMOS RAM" handle 0x0d [0x0070-0x0071] fd=-1
Registering HWRAM, type=  base=0x1478000 size=0x400000
CONF: reserving 12Kb at 0xC0000 for 'V' (VGAEMU Video BIOS)
PORT: registered "VGAEmu VGA Controller" handle 0x0e [0x03c0-0x03cf] fd=-1
PORT: registered "VGAEmu CRT Controller" handle 0x0f [0x03d4-0x03d5] fd=-1
PORT: registered "VGAEmu Input Status #1/Feature Control" handle 0x10 
[0x03da-0x03da] fd=-1
PORT: registered "VGAEmu Mono/Hercules Card Range 0" handle 0x11 
[0x03b0-0x03bb] fd=-1
PORT: registered "VGAEmu Mono/Hercules Card Range 1" handle 0x12 
[0x03bf-0x03bf] fd=-1
SERIAL $Header: /cvsroot/dosemu/dosemu/src/base/serial/ser_init.c,v 1.23 
2005/08/22 00:05:17 bartoldeman Exp $
SER: Running serial_init, 2 serial ports
registering /dev/ttyS0 for serial
SER0: enabling interrupt 12
PORT: registered "COM1" handle 0x13 [0x03f8-0x03ff] fd=-1
SER0: COM1, intlevel=12, base=0x3f8, device=/dev/ttyS0
registering /dev/ttyS1 for serial
SER1: enabling interrupt 11
PORT: registered "COM2" handle 0x14 [0x02f8-0x02ff] fd=-1
SER1: COM2, intlevel=11, base=0x2f8, device=/dev/ttyS1
PORT: registered "8259 PIC0" handle 0x15 [0x0020-0x0021] fd=-1
PORT: registered "8259 PIC1" handle 0x16 [0x00a0-0x00a1] fd=-1
PORT: registered "Parallel printer" handle 0x17 [0x0378-0x037a] fd=-1
PORT: registered "Parallel printer" handle 0x17 [0x0278-0x027a] fd=-1
PORT: registered "DMA - XT Controller" handle 0x18 [0x0000-0x000f] fd=-1
PORT: registered "DMA - XT Pages" handle 0x19 [0x0081-0x0087] fd=-1
PORT: registered "DMA - AT Controller" handle 0x1a [0x00c0-0x00de] fd=-1
PORT: registered "DMA - AT Pages" handle 0x1b [0x0089-0x008f] fd=-1
PORT: registered "Floppy Drive" handle 0x1c [0x03f0-0x03f7] fd=-1
PORT: registered "SB Emulation" handle 0x1d [0x0220-0x0233] fd=-1
PORT: registered "Adlib (+ Advanced) Emulation" handle 0x1e 
[0x0388-0x038b] fd=-1
PORT: registered "Midi Emulation" handle 0x1f [0x0330-0x0331] fd=-1
PKT: Cannot allocate TAP device (dynamic): Permission denied
CONF: detected layout is "auto"
CONF: detected alternate layout: (null)
CONF: reserving 64Kb at 0xE4000 for 'E' (EMS page frame)
CONF: reserving 132Kb at 0xC3000 for 'U' (Upper Memory Block (UMB, XMS 3.0))
TIME: using 9154 usec for updating ALRM timer
SER0: BIOS memory location 0x400 has value of 0x3f8
SER1: BIOS memory location 0x402 has value of 0x2f8
SER0: INT14 0x0: Initialize port 0, AL=0xa3
SER0: Running ser_open, fd=-1
SER0: Clear FIFO.
SER0: tmp=0 int_cond=0 int_req=0 int=0 fifo=0
SER0: do_ser_init: running ser_termios
SER0: LCR = 0x3, 8N1, bps = 2400, divisor 0x30 -> 0x30
SER0: Modem Status Change: MSR -> 0x20
SER0: Func modstat_engine requesting MS_INTR
SER0: tmp=0 int_cond=8 int_req=0 int=8 fifo=0
SER0: Interrupt 12 (8) cannot be requested: enable=0 IER=0x0
SER0: Read LCR = 0x3
SER0: ret=0 queue=0
SER0: MCR = 0x3
SER0: MCR: DTR -> 1
SER0: MCR: RTS -> 2
SER0: ret=0 queue=0
SER0: LCR = 0x83, DLAB high.
SER0: ret=0 queue=0
SER0: Divisor LSB = 0x30
SER0: ret=0 queue=0
SER0: Divisor MSB = 0x0
SER0: ret=0 queue=0
SER0: LCR = 0x3, DLAB low.
SER0: LCR = 0x3, 8N1, bps = 2400, divisor 0x30 -> 0x30
SER0: ret=0 queue=0
SER0: Read LSR = 0x60
SER0: ret=0 queue=0
SER0: tmp=0 int_cond=0 int_req=0 int=0 fifo=0
SER0: Read MSR = 0x20
SER0: ret=0 queue=0
SER0: INT14 0x0: Return with AL=0x20 AH=0x60
SER1: INT14 0x0: Initialize port 1, AL=0xa3
SER1: Running ser_open, fd=-1
SER1: Clear FIFO.
SER1: tmp=0 int_cond=0 int_req=0 int=0 fifo=0
SER1: do_ser_init: running ser_termios
SER1: LCR = 0x3, 8N1, bps = 2400, divisor 0x30 -> 0x30
SER1: Read LCR = 0x3
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER1: MCR = 0x3
SER1: MCR: DTR -> 1
SER1: MCR: RTS -> 2
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER1: LCR = 0x83, DLAB high.
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER1: Divisor LSB = 0x30
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER1: Divisor MSB = 0x0
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER1: LCR = 0x3, DLAB low.
SER1: LCR = 0x3, 8N1, bps = 2400, divisor 0x30 -> 0x30
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER1: Read LSR = 0x60
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER1: tmp=0 int_cond=0 int_req=0 int=0 fifo=0
SER1: Read MSR = 0x0
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER1: INT14 0x0: Return with AL=0x0 AH=0x60
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SERIAL: Async notification received
SER0: Got 7 bytes, 0 in buffer
SER0: Func uart_fill requesting RX_INTR
SER0: tmp=0 int_cond=1 int_req=0 int=1 fifo=0
SER0: Interrupt 12 (1) cannot be requested: enable=0 IER=0x0
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SER0: ret=0 queue=0
SER1: ret=0 queue=0

--SNIP--


SERIAL: Async notification received
SER0: Func uart_fill requesting RX_INTR
SER0: tmp=1 int_cond=3 int_req=0 int=1 fifo=0
SER0: Func pic_request intlevel=12, int_requested=1
SER0: ret=0 queue=0
SER1: ret=0 queue=0
SERIAL: Async notification received
SER0: Func uart_fill requesting RX_INTR
SER0: tmp=1 int_cond=3 int_req=0 int=1 fifo=0
SER0: Func pic_request intlevel=12, int_requested=1
SER0: ret=0 queue=0
SER1: ret=0 queue=0
leavedos(0|0x0) called - shutting down
SPEAKER: sound OFF!
SPEAKER: sound OFF!
SER: Running serial_close
SER0: Running ser_close
SER0: Clear FIFO.
SER0: tmp=0 int_cond=0 int_req=0 int=0 fifo=0
SER1: Running ser_close
SER1: Clear FIFO.
SER1: tmp=0 int_cond=0 int_req=0 int=0 fifo=0

Re: Serial Port Issue with FC3 and dosemu 1.3.3

[Stas Sergeev]

Hello.

Karl Swisher wrote:
> Have serial port issues now 
> that I didn't have before.
Please open the bug-report at an SF tracker, and attach the
full -D9+s log to it, compressed with bzip2. If you can attach
also the log of the good-working session - even better. If you
can attach your program for testings - yet better.

> Have the sudoers working.
You shouldn't. Please don't run dosemu with the root privs
(at least for the bug-report).

> It appears the problem only occurs after upgrading FC3 at some point.
In this case you should try the fresh kernel, not the RH-patched
one. Although, from your log snip, this doesn't look kernel-related
to me.

> save space.  The error seems to be here:
>   SER0: Interrupt 12 (1) cannot be requested: enable=0 IER=0x0
The DOS program haven't enabled the serport interrupts. There is
nothing wrong with this, it can do that later, or it can use polling.
Or maybe something isn't good with your program? Have you tried it
in the pure DOS recently to make sure it still works? (eg, some
configuration was changed and you haven't noticed)