Date: Tue, 15 Aug 2000 20:14:51 +0200 From: Erik Trulsson <ertr1013@student.uu.se> To: GDB <g-d-b@freegates.be> Cc: questions@freebsd.org Subject: Re: configured irq 3 not in bitmap of probed irqs 0 Message-ID: <20000815201450.A34452@student.uu.se> In-Reply-To: <000e01c006e1$07fb6ca0$651023d4@gdb>; from g-d-b@freegates.be on Tue, Aug 15, 2000 at 07:48:31PM %2B0200 References: <000e01c006e1$07fb6ca0$651023d4@gdb>
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On Tue, Aug 15, 2000 at 07:48:31PM +0200, GDB wrote: > I want to add "sio3" to my kernel. Under Win98, COM4 is on IRQ03, COM2 > too. COM1 -> IRQ04. There is no COM3. Windows says there are no conflicts > and indeed, my modem (on COM4) works perfectly. How do I add sio3 (COM4) > to my FreeBSD kernel? I always get the message "configured irq 3 not in > bitmap of probed irqs 0". I tried to add sio2 too, but nope, doesn't work. > The docs state that when you have a modem on COM4, you have to set the IRQ > of the modem to 2, but what EXACTLY do they mean? And why should I have to > change it (DO I have to change it anyway since everything works fine under > Win98?) It seems the msg "configured irq 3 not in bitmap of probed irqs 0" > is well-known, but there's doesn't seem to be a simple answer. > > I have FreeBSD 3.2 and did nothing more than following the instructions in > the handbook. I changed only 1 line in MYKERNEL (the sio3 line which is > disabled by default). I tried setting IRQ2 and IRQ9, but that doesn't > work. > > Help! I need somebody, Help! Is there anybody... ? First, yes, all the serial ports need to use different IRQs. The reason that it works under Windows with shared irqs is that Windows doesn't use the irq. (At least that is how it works with MSDOS. I don't think anything have changed since.) You need to somehow change the hardware to use a different IRQ-line. How you do that depends on where that extra serial port comes from :-) On the card with extra serial ports that I have there are a set of jumpers to choose irq/IO-port etc. Hopefully you have something like that. Then you set the options in the kernel to match the actual hardware. -- <Insert your favourite quote here.> Erik Trulsson ertr1013@student.uu.se To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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