Description of problem: The kernel is disabling DMA for the DVD drive on my HP zx5030EA (ATI IXP-based) notebook, making transfers very slow. I've never seen this problem in previous releases of Fedora. Version-Release number of selected component (if applicable): kernel-2.6.25.4-29.fc9.i686 How reproducible: Always. Steps to Reproduce: 1. Boot. Actual results: The following is seen in dmesg: ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x8060 irq 14 ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x8068 irq 15 ata1.00: ATA-6: IC25N060ATMR04-0, MO3OAD0A, max UDMA/100 ata1.00: 117210240 sectors, multi 16: LBA48 ata1.00: configured for UDMA/100 ata2.00: ATAPI: HL-DT-STCD-RW/DVD DRIVE GCC-4241N, 0C29, max MWDMA2 ata2.00: simplex DMA is claimed by other device, disabling DMA ata2.00: configured for PIO4 Very slow DVD drive. Expected results: Multi-word DMA available for the DVD drive.
Created attachment 308479 [details] dmesg output with the problem
Fixed upstream already.
Any idea when the fix will filter its way down into F9/what should I look out for on Koji?
alan, do you have the git hash or a pointer to the patch? we can throw this into f9 as an update until .26 lands.
Fixed in 2.6.25.4-44
(The real fix is mostly not to load pata_acpi in the wrong order)
*** Bug 450225 has been marked as a duplicate of this bug. ***
Glad to hear a fix is in and will filter down the intertubes soon-ish. Meanwhile, Blacklisting pata_acpi seems to have done the trick for my laptop.
Confirmed fixed in kernel-2.6.25.5-49.fc9, closing.
Bug will be closed automatically when a new kernel gets released.
kernel-2.6.25.6-55.fc9 has been submitted as an update for Fedora 9
kernel-2.6.25.6-55.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report.