After some hours of uptime I can find this in dmesg and dma of my harddrive is switched off: ... hda: irq timeout: status=0xd0 { Busy } hda: irq timeout: status=0xd0 { Busy } hda: status timeout: status=0xd0 { Busy } hda: DMA disabled ... I can switch it back with hdparm -d1 /dev/hda, but after some hours the same thing happens. Reproducible: Always Steps to Reproduce: 1.Kernel 2.6.24-gentoo, 2.6.24-gentoo-r1, 2.6.24-gentoo-r2 with atiixp ide 2.wait for some hours 3.look in dmesg Actual Results: in dmesg: hda: irq timeout: status=0xd0 { Busy } hda: irq timeout: status=0xd0 { Busy } hda: status timeout: status=0xd0 { Busy } hda: DMA disabled Expected Results: with kernel 2.6.23-gentoo it works without problems Hardware is Acer Aspire 5021, lspci: 00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 01) ... 00:14.1 IDE interface: ATI Technologies Inc Standard Dual Channel PCI IDE Controller ... dmesg: Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx ATIIXP: IDE controller (0x1002:0x4376 rev 0x00) at PCI slot 0000:00:14.1 ACPI: PCI Interrupt 0000:00:14.1[A] -> GSI 16 (level, low) -> IRQ 16 ATIIXP: not 100% native mode: will probe irqs later ide0: BM-DMA at 0x8410-0x8417, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0x8418-0x841f, BIOS settings: hdc:DMA, hdd:pio Probing IDE interface ide0... Switched to high resolution mode on CPU 0 hda: ST9160821A, ATA DISK drive hda: host max PIO4 wanted PIO255(auto-tune) selected PIO4 hda: UDMA/100 mode selected ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 Probing IDE interface ide1... and I use ATA/ATPI/MFM/RLL > ATI IXP chipset IDE support, not the Parallel ATA
Please file this as an upstream bug at http://bugzilla.kernel.org Attach full dmesg output and "lspci -v" output
also please post the new bug URL here when done
(In reply to comment #2) > also please post the new bug URL here when done http://bugzilla.kernel.org/show_bug.cgi?id=9994
reported as fixed in 2.6.27 on upstream bug