Description of problem: A noname ATAPI 24x CD-ROM drive on a CMD648 controller causes the kernel to hang before the installer starts. The last line printed is: hdc: , ATAPI CD/DVD-ROM drive A vanilla 2.4.19 is able to boot on the same hardware. Version-Release number of selected component (if applicable): 2.4.22-1.2115.nptl How reproducible: Always Steps to Reproduce: 1. Try to boot installer Actual results: Kernel hangs Expected results: Installer runs Additional info: The last lines of output from the kernel before hanging: Uniform Multi-Platform E-IDE driver Revision: 7.00beta4-2.4 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx CMD648: IDE controller at PCI slot 00:0a.0 PCI: Found IRQ 11 for device 00:0a.0 CMD648: chipset revision 1 CMD648: not 100% native mode: will probe irqs later CMD648: ROM enabled at 0xe6000000 ide0: BM-DMA at 0xb000-0xb007, BIOS settings: hda:pio, hdb:pio ide1: BM-DMA at 0xb008-0xb00f, BIOS settings: hdc:pio, hdd:pio PDC20268: IDE controller at PCI slot 00:0c.0 PCI: Found IRQ 11 for device 00:0c.0 PDC20268: chipset revision 2 PDC20268: not 100% native mode: will probe irqs later PDC20268: ROM enabled at 0xe8000000 ide2: BM-DMA at 0xc800-0xc807, BIOS settings: hde:pio, hdf:pio ide3: BM-DMA at 0xc808-0xc80f, BIOS settings: hdg:pio, hdh:pio ALI15X3: IDE controller at PCI slot 00:0f.0 PCI: Assigned IRQ 11 for device 00:0f.0 ALI15X3: chipset revision 32 ALI15X3: not 100% native mode: will probe irqs later ide4: BM-DMA at 0xf000-0xf007, BIOS settings: hdi:pio, hdj:pio ide5: BM-DMA at 0xf008-0xf00f, BIOS settings: hdk:pio, hdl:pio hda: ST360021A, ATA DISK drive ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx blk: queue c03d9420, I/O limit 4095Mb (mask 0xffffffff) hdc: , ATAPI CD/DVD-ROM drive
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