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From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020529 Description of problem: kernel-2.4.18-18.7.3 fails to drive a FX4830T ATAPI CD-ROM, even when PCI_DEVICE_ID_VIA_8235 is recompiled to VIA_UDMA_100 instead of VIA_UDMA_133. dmesg errors begin with ----- VP_IDE: VIA vt8235 (rev 00) IDE UDMA100 controller on pci00:11.1 ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:DMA, hdd:pio hda: ST320413A, ATA DISK drive hdc: FX4830T, ATAPI CD/DVD-ROM drive hdc: ATAPI 1X DVD-ROM DVD-RAM CD-R/RW drive, 8467kB Cache hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest } hdc: drive not ready for command hdc: status timeout: status=0xd1 { Busy } hdc: drive not ready for command hdc: ATAPI reset complete ----- and there are many more. The immediate symptoms are a hang for 1 to 2 minutes during boot, just after "Enabling swap space", and another hang for a couple minutes at boot during loading of keyboard layout, and another hang for a couple minutes in bringing up graphical desktop just after login. (The first inconsistency is "hdc: ATAPI 1X DVD-ROM DVD-RAM CD-R/RW drive" because it is actually a Mitsumi CD-ROM only, with moderately high speed [maximum 24X or 48X, I think].) The same hardware has no trouble booting from CD-ROM to update the system [that's how the initial upgrade to 2.4.18-17.7.3 {yes, "17": as of Nov.1, 2002} was accomplished], or booting "linux rescue" from CD-ROM (KRUD Linux 2002-11-01: RHL7.3 with all updates as of that date) to transfer new kernel-2.4.18-18.7.3.i686.rpm via scp over eth0, and then "rpm --install". The same hardware drove the CD-ROM correctly using either kernel 2.4.18-10 or 2.4.18-5 [after a recompile to enable PCI_DEVICE_ID_VIA_8235 by removing it from FUTURE_BRIDGES, and use VIA_UDMA_100.] Configuration: AMD Duron 1.2GHz, MSI KT3 Ultra2 mainboard (VIA KT333), 256MB PC2700 DDR (333MHz). RHL7.3 Workstation or Personal workstation installed. Other log and diagnostic files will be attached. ide0 has 80-wire UDMA cable, only device is harddrive as Master; ide1 has 40-wire non-UDMA cable, only device is CD-ROM as Master. Version-Release number of selected component (if applicable): 2.4.18-18.7.3 How reproducible: Always Steps to Reproduce: 1.Attempt to boot RHL7.3 with kernel 2.4.18-18.7.3. 2. 3. Actual Results: Hang for 1 to 2 minutes just after "Enabling swap space"; hang for a couple minutes loading keyboard map and/or linuxconf; hang for a couple minutes brining up graphical desktop. Harddisk filesystems and eth0 work correctly; login is possible. CD-ROM cannot be used at all. Expected Results: Normal boot, no hangs. CD-ROM works normally. Additional info:
Created attachment 88726 [details] messages from booting
Created attachment 88727 [details] /etc/sysconfig/hwconf
Created attachment 88728 [details] output from "lspci -vn"
Created attachment 88729 [details] output from "lspci -vvx"
Created attachment 88730 [details] /proc/ide/via after recompile to VIA_UDMA_100 Under original 2.4.18-18.7.x using VIA_UDMA_133, ide1 (CD-ROM) is diagnosed as having an 80-wire cable, but there are only 40 wires. ide0 (harddrive) does have an 80-wire cable.
Created attachment 88731 [details] /var/log/messages syslog
Created attachment 88732 [details] change from VIA_UDMA_133 to VIA_UDMA_100 Changing to 100MHz UDMA was just a guess based on the first error message showing apparently normal "status=0x58 { DriveReady SeekComplete DataRequest }". Anyway, the behavior at 133MHz is essentially the same.
The ISA bridge has PCI ids of 0x1106:0x3177. The hardcopy documentation for the mainboard, and dmesg, and the kernel source include/linux/pci_ids.h say that is VT8235. However, both hwconf and lspci say that is a VT8233A. Hmmm.
Created attachment 88734 [details] dmesg from good 2.4.18-3BOOT "dmesg" after BIOS boot from CD-ROM using 2.4.18-3BOOT (KRUD Linux 7.3 2002-11-01: RHL7.3 plus all patches as of that date) which reveals that the CD-ROM is 48X: ----- hdc: ATAPI 48X CD-ROM drive, 128kB Cache -----
Workaround: Vojtech Pavlik's patch works for me: http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=3DFC81C2.4020807%40tin.it&rnum=1&prev=/groups%3Fq%3DIDE-CD%2Band%2BVT8235%2Bissue!!!%26ie%3DUTF-8%26oe%3DUTF-8%26hl%3Den I considered using the via82cxxx.[ch] from linux-2.4.20-ac2 at kernel.org, but it was much more difficult to integrate into kernel-2.4.18-18.7.x, even after noticing the directory structure difference drivers/ide/pci vs drivers/ide. Voytech's patch applied to kernel-2.4.18-18.7.x with only minor fuzz, and compiled on the first attempt.
Thanks for the bug report. However, Red Hat no longer maintains this version of the product. Please upgrade to the latest version and open a new bug if the problem persists. The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, and if you believe this bug is interesting to them, please report the problem in the bug tracker at: http://bugzilla.fedora.us/