Date: Wed, 24 Feb 1999 23:51:17 +0100 From: Pierre Beyssac <beyssac@enst.fr> To: freebsd-current@freebsd.org Subject: IDE CDROM not found with PIIX4 chipset, -current kernel Message-ID: <19990224235117.A9283@enst.fr>
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I've been having problems with an IDE controller on my motherboard. I can't seem to be able to get it to recognize a CDROM drive (it's the only device plugged on the second IDE controller). The kernel seems to timeout on that second controller during the probe phase. Maybe that's one of the infamous PIIX 4 bugs... The machine is a Dell Optiplex. The first weird thing is that the CDROM drive is found if I plug another IDE drive as slave on the second controller. The second weird thing is that it's recognized perfectly correctly if I boot a Linux installation disk... So I assume they found a workaround, if that's a PIIX 4 bug. I've tried to change the device flags (with and without DMA), to no avail. I've followed every recent patch to the IDE code, none of these seems to help (the last kernel I tried is a 4.0-current from Monday). Here's my dmesg: ide_pci0: <Intel PIIX4 Bus-master IDE controller> rev 0x01 on pci0.7.1 ... wdc0 at 0x1f0-0x1f7 irq 14 flags 0xa0ffa0ff on isa wdc0: unit 0 (wd0): <Maxtor 90640D4>, DMA, 32-bit, multi-block-16 wd0: 6149MB (12594960 sectors), 12495 cyls, 16 heads, 63 S/T, 512 B/S wdc0: unit 1 (wd1): <Maxtor 90640D4>, DMA, 32-bit, multi-block-16 wd1: 6149MB (12594960 sectors), 12495 cyls, 16 heads, 63 S/T, 512 B/S wdc1 at 0x170-0x177 irq 15 flags 0xa0ffa0ff on isa ... then nothing, it times out after a while and goes on with the boot, no CDROM is ever found. Here's an excerpt from my kernel config. Did I miss something obvious? controller wdc0 at isa? port "IO_WD1" bio irq 14 flags 0xa0ffa0ff vector wdintr disk wd0 at wdc0 drive 0 disk wd1 at wdc0 drive 1 controller wdc1 at isa? port "IO_WD2" bio irq 15 flags 0xa0ffa0ff vector wdintr disk wd2 at wdc1 drive 0 disk wd3 at wdc1 drive 1 options ATAPI #Enable ATAPI support for IDE bus options ATAPI_STATIC #Don't do it as an LKM device acd0 #IDE CD-ROM -- Pierre Beyssac pb@enst.fr To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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