Public bug reported:
I have a Acer Aspire 1362LM.
The IDE controller is:
VP_IDE: VIA vt8235 (rev 00) IDE UDMA133 controller on pci0000:00:11.1
When I have high I/O, sometimes the system freeze for some seconds, then
return to works....
In dmesg I found
[17179822.284000] hda: dma_timer_expiry: dma status == 0x21
[17179832.392000] hda: DMA timeout error
[17179832.392000] hda: dma timeout error: status=0xd0 { Busy }
[17179832.392000] ide: failed opcode was: unknown
[17179832.392000] hda: DMA disabled
[17179832.488000] ide0: reset: success
I tried all solutions, using hdparm, etc... but nothing changed.
I think is a linux kernel bug because freebsd don't have this problem.
** Affects: Ubuntu
Importance: Untriaged
Status: Unconfirmed
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High I/O sometimes couse dma timeout errors
https://launchpad.net/bugs/50192
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