From owner-freebsd-stable Sun Nov 19 1:25:11 2000 Delivered-To: freebsd-stable@freebsd.org Received: from medianstrip.net (medianstrip.net [206.113.38.30]) by hub.freebsd.org (Postfix) with ESMTP id 5BC8A37B479 for ; Sun, 19 Nov 2000 01:25:06 -0800 (PST) Received: by medianstrip.net (Postfix, from userid 1000) id 7C0AB59BA; Sun, 19 Nov 2000 04:25:05 -0500 (EST) Date: Sun, 19 Nov 2000 04:25:05 -0500 From: mike ryan To: stable@FreeBSD.ORG Subject: Re: 4.2-BETA hangs on boot Message-ID: <20001119042505.A7076@medianstrip.net> Mail-Followup-To: stable@FreeBSD.ORG References: <20001117172251.A34915@medianstrip.net> <20001116204344.B62344@bonsai.knology.net> <20001116195957.A62344@bonsai.knology.net> <200011170209.eAH297q51130@drugs.dv.isc.org> <20001116204344.B62344@bonsai.knology.net> <200011172203.PAA77619@harmony.village.org> <20001117172251.A34915@medianstrip.net> <200011172314.QAA78313@harmony.village.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200011172314.QAA78313@harmony.village.org>; from imp@village.org on Fri, Nov 17, 2000 at 04:14:39PM -0700 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On 11/17/00, Warner Losh wrote: > In message <20001117172251.A34915@medianstrip.net> mike ryan writes: > : On 11/17/00, Warner Losh wrote: > : > This won't be changed. polling works on more systems than a specific > : > IRQ, and the IRQ to use varies so widely that any choice is likely to > : > be wrong. > : are the reasons why polling doesn't work on some hardware well > : understood? > > I wasn't aware that polling wasn't working until very recently. I > don't have a good idea how many machines this impacts. in that case, is there anything those of us with affected hardware can do to help diagnose this? for what it's worth, here's the behavior i'm seeing: on my vaio z505hs with a ricoh rl5c475 pci-cardbus bridge, polling mode works fine with the "plug & play o/s" bios option set to "yes". when i set that bios option to "no" (so usb works), the machine will occasionally (but not always) hang on boot after the pccard0 probe, with no cards inserted. i haven't tried booting with cards inserted. when the machine boots successfully, it will always hang on a card insertion. verbose boot messages are identical, regardless of bios settings: pcic-pci0: at device 12.0 on pci0 pcic-pci0: Legacy address set to 0x3e0 PCI Config space: 00: 04751180 02100007 06070080 00020000 10: 00000000 020000dc 00000000 00000000 20: 00000000 00000000 00000000 00000000 30: 00000000 00000000 00000000 078001ff 40: 8082104d 000003e1 00000000 00000000 50: 00000000 00000000 00000000 00000000 60: 00000000 00000000 00000000 00000000 70: 00000000 00000000 00000000 00000000 80: 00000001 00000000 04630463 30000000 90: 00000000 00000000 00000000 00000000 Cardbus Socket registers: 00: f000ff53: f000ff53: f000e2c3: f000ff53: 10: f000ff53: f000ff54: f000a0bd: f000ff53: ExCa registers: 00: eb 88 d5 43 30 d2 66 f7 f3 88 d7 5a 66 3d ff 03 10: 00 00 fb 77 44 86 c4 c0 c8 02 08 e8 40 91 88 fe 20: 28 e0 8a 66 02 38 e0 72 02 88 e0 bf 05 00 c4 5e 30: 04 50 b4 02 cd 13 5b 73 0a 4f 74 1c 30 e4 cd 13 pcic0: at port 0x3e0 iomem 0xd8000 on isa0 pcic0: Polling mode stat is 33 pccard0: on pcic0 when a card insertion does freeze the machine, i can still drop to ddb. once in ddb, i can "next" a lot, and eventually ddb will disappear, the machine will be unfrozen, the freshly inserted card will probe and attach, and everything will continue normally except that a random process will have died on SIGTRAP. same thing on card removal. dropping to ddb and hitting "continue" doesn't work, only "next". this seems odd. at this point, i've got no idea how to proceed. i'm willing to perform experiments on request, though, if that would help... To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message