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Date: Thu, 15 Jul 2004 17:42:44 +0200
From: Palle Girgensohn <girgen@pingpong.net>
To: current@freebsd.org
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Subject: parallel port *slow*
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Hi!


For a while now my parallel port (with printer hooked up) has been *really 
SLOW*. Takes several minutes to print a single very simple page.

Any idea how to debug or what to try/fix?

All I see in the log is:

Jul 15 17:28:50 palle kernel: stray irq7

$ dmesg | grep "irq 7"
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0

and

relevant dmesg lines are:
...
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 8250 or not responding
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/16 bytes threshold
ppbus0: <Parallel port bus> on ppc0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
unknown: <PNP0303> can't assign resources (port)
unknown: <PNP0401> can't assign resources (port)
Timecounter "TSC" frequency 2088083711 Hz quality 800
Timecounters tick every 0.801 msec
...

uname -a
FreeBSD palle.girgensohn.se 5.2-CURRENT FreeBSD 5.2-CURRENT #10: Mon Jul 12 
01:59:18 CEST 2004 
root@palle.girgensohn.se:/usr/obj/4/usr/5src/sys/PALLE  i386

but I think I cvs:ed it about four weeks ago, kern.osreldate: 502119


/Palle