Date: Sun, 23 Mar 2003 14:26:38 -0500 (EST) From: Robert Watson <rwatson@FreeBSD.org> To: current@FreeBSD.org Subject: ACPI problem: sio ports improperly attached with ACPI on Intel L440GX+ Message-ID: <Pine.NEB.3.96L.1030323142324.84085Q-100000@fledge.watson.org>
next in thread | raw e-mail | index | archive | help
I'm attempting to use an Intel L440GX+ motherboard with 5.x, and am running into the following problem: when I boot without ACPI, the serial ports probe, attach, and work fine: Mar 23 14:21:56 none kernel: sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0 Mar 23 14:21:56 none kernel: sio0: type 16550A Mar 23 14:21:56 none kernel: sio1 at port 0x2f8-0x2ff irq 3 on isa0 Mar 23 14:21:56 none kernel: sio1: type 16550A 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 Mar 23 14:14:31 none kernel: sio1: configured irq 3 not in bitmap of probed irqs 0 Mar 23 14:14:31 none kernel: sio1: port may not be enabled Mar 23 14:14:31 none kernel: sio1 port 0x2f8-0x2ff irq 3 on acpi0 Mar 23 14:14:31 none kernel: sio1: 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? Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Network Associates Laboratories To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.NEB.3.96L.1030323142324.84085Q-100000>