Date: Tue, 19 Apr 2005 12:30:38 -0700 (PDT) From: Philip Hallstrom <freebsd@philip.pjkh.com> To: freebsd-questions@freebsd.org Subject: Re: IRQ problems b/n USB and PCI modem... help! (SOLVED) Message-ID: <20050419122912.W28469@wolf.pjkh.com> In-Reply-To: <20050418141339.C1211@wolf.pjkh.com> References: <20050418141339.C1211@wolf.pjkh.com>
next in thread | previous in thread | raw e-mail | index | archive | help
So, after getting some pointers from folks (thanks!) I started from scratch this morning twiddling one BIOS setting at a time. Turns out that it's *NOT* the USB controller. Well, maybe it is, I don't really know I guess. By turning off "Power Management" in the BIOS, I can access all three modems just fine. Strange, but I'm glad it's working :) Thanks all! On Mon, 18 Apr 2005, Philip Hallstrom wrote: > Hi all - > I am in IRQ h*ll. I'm trying to setup an box to use as an inbound > 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 locks > up the entire system (network, console, everything). Here's the 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 > 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 > 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 the > BIOS to shut USB off completely. > > I've also tried killing off sio0/IRQ4 in hopes the modem would take that IRQ, > but no luck there either. > > > > Anyone have any ideas on how I can get this to work? Should I try FreeBSD > 5.x? > > Thanks all! > > -philip > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050419122912.W28469>