On Sun, 23 Mar 2003, Robert Watson wrote: > When I boot with ACPI, the following appears in dmesg: > > Mar 23 14:14:31 none kernel: sio0: configured irq 4 not in bitmap of probed irqs 0 > Mar 23 14:14:31 none kernel: sio0: port may not be enabled > Mar 23 14:14:31 none kernel: sio0 port 0x3f8-0x3ff irq 4 on acpi0 > Mar 23 14:14:31 none kernel: sio0: type 16550A > ... > > And sure enough, when using ACPI, interrupts don't work properly with the > serial ports, resulting in them essentially being unusable (stuff goes > out, but not in, except once in a while when the silo overflows). I > notice that, unlike my other 5.x boxes, sio0 and sio1 seem to attach to > acpi0, rather than isa0 as one would expect, so I guess it's not entirely > surprising that the interrupts aren't working right. > > Any suggestions about how I might go about diagnosing and remedying this > problem?
Maybe something else steals their interrupts (it could be unconfigured ports sio[2-3]). I think the ports get probed again later with isa hints (ISTR seeing this for isa-pnp) but their "successful" attachment to acpi prevents this doing anything. The "configured irq N not in bitmap" warning used to be an error and this would have prevented attachment. You could try making it an error again. Bruce To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
