Date: Mon, 18 Apr 2005 21:28:54 -0400 From: Mike Tancsa <mike@sentex.net> To: Philip Hallstrom <freebsd@philip.pjkh.com> Cc: freebsd-questions@freebsd.org Subject: Re: IRQ problems b/n USB and PCI modem... help! Message-ID: <3vg861dpo1eok0i38vo0cna161l5ib0do2@4ax.com> In-Reply-To: <20050418141339.C1211@wolf.pjkh.com> References: <20050418141339.C1211@wolf.pjkh.com>
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On Mon, 18 Apr 2005 14:24:28 -0700 (PDT), in sentex.lists.freebsd.questions you wrote: >Hi all - > I am in IRQ h*ll. I'm trying to setup an box to use as an inbound=20 >modem server... > >Here's what's happening... > >FreeBSD 4.9 >Dell Dimension XPS T450 (ie. several year old dell). >Default BIOS settings (switching the PnP OS has no effect). > >One NIC recognized as fxp0. One IDE drive, one cdrom, one floppy. >Three USR 5610B PCI modems (which work fine individually). > >I can access the first two modems via tip, but tipping to the last one=20 >locks up the entire system (network, console, everything). Here's the=20 >relevant parts from /var/run/dmesg.boot: > >pci1: <3Dfx Voodoo 3 graphics accelerator> at 0.0 irq 11 >ata0: at 0x1f0 irq 14 on atapci0 >ata1: at 0x170 irq 15 on atapci0 >pci0: <Intel 82371AB/EB (PIIX4) USB controller> at 7.2 irq 9 >fxp0: <Intel 82559 Pro/100 Ethernet> port 0x1000-0x103f mem=20 >0xf4000000-0xf40fffff,0xf4100000-0xf4100fff irq 11 at device 13.0 on = pci0 >sio0: <3COM PCI FaxModem> port 0x1070-0x1077 irq 10 at device 14.0 on = pci0 >sio0: moving to sio4 >sio4: type 16550A >sio0: <3COM PCI FaxModem> port 0x1078-0x107f irq 7 at device 15.0 on = pci0 >sio0: moving to sio5 >sio5: type 16550A >sio0: <3COM PCI FaxModem> port 0x1080-0x1087 irq 9 at device 16.0 on = pci0 >sio0: moving to sio6 >sio6: type 16550A >fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on = isa0 >atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0 >sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 >sio0: type 16550A > > >I am pretty sure my problem is that the USB controller and the third = modem=20 >are both using IRQ 9, but I can't think of any way to resolve that. > >I don't have USB compiled into my kernel and there aren't any settings = in=20 >the BIOS to shut USB off completely. This sounds like a number of bugs we have run into. Perhaps moving the serial card to being a PUC device like with did with the Smartlink modem in the PR below http://www.freebsd.org/cgi/query-pr.cgi?pr=3Dkern/74786 Also, if you do ever use the USB bus, there are a number of bug fixes you will need, especially with uhid. > >Anyone have any ideas on how I can get this to work? Should I try = FreeBSD=20 >5.x? If its the problem we are running into, no it will still be there under RELENG_5. However, in general RELENG_5 is much more stable, especially if you cannot turn off USB in the BIOS. ---Mike -------------------------------------------------------- Mike Tancsa, Sentex communications http://www.sentex.net Providing Internet Access since 1994 mike@sentex.net, (http://www.tancsa.com)
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