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Date:      Mon, 3 Jul 2000 20:30:54 +0200
From:      Francesco Casadei <fcasadei@monrif.net>
To:        freebsd-questions mailing list <freebsd-questions@freebsd.org>
Subject:   stray irq 7
Message-ID:  <20000703203054.A6333@casimirhost.kasby>

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Today while printing I got this error message on root console:

Jul  3 20:02:16 casimirhost /kernel: stray irq 7
Jul  3 20:02:16 casimirhost /kernel: stray irq 7
Jul  3 20:02:58 casimirhost last message repeated 4 times
Jul  3 20:02:58 casimirhost last message repeated 4 times
Jul  3 20:02:58 casimirhost /kernel: too many stray irq 7's; not logging any
more
Jul  3 20:02:58 casimirhost /kernel: too many stray irq 7's; not logging any
more

What does it mean?

Here's more info on my system.

root> uname -a
FreeBSD casimirhost.kasby 4.0-STABLE FreeBSD 4.0-STABLE #0: Wed Jun 28 09:48:35
CEST 2000     root@casimirhost.kasby:/usr/obj/usr/src/sys/CASIMIRHOST  i386

/usr/src/sys/i386/conf/CASIMIRHOST:
[...]
# Parallel port
device          ppc0    at isa? irq 7
device          ppbus           # Parallel port bus (required)
device          lpt             # Printer
device          ppi             # Parallel port interface device
[...]

root> dmesg
[...]
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 16/16/7 bytes threshold
ppi0: <Parallel I/O> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
[...]

I have an HP DeskJet 400. Under FreeBSD 3.4-STABLE I was able to print only
with polled mode turned on; in interrupt-driven mode the printer was able to
print only garbage.

	Francesco Casadei


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