Messages in this thread | | | Date | Tue, 01 Jul 2003 08:13:34 -0500 | From | Edward King <> | Subject | Re: 2.4.21 IDE problems (lost interrupt, bad DMA status) |
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Marek Michalkiewicz wrote:
>Hi, > >After upgrading the kernel from 2.4.20 to 2.4.21, sometimes I see >the following messages: > >hda: dma_timer_expiry: dma status == 0x24 >hda: lost interrupt >hda: dma_intr: bad DMA status (dma_stat=30) >hda: dma_intr: status=0x50 { DriveReady SeekComplete } > >It happens especially when there is a lot of disk I/O (which stops >for a few seconds when these messages appear), with three different >disks (very unlikely they all decided to die at the same time...), > >
Are you using software raid or devfs?
I was losing interrupts and disabling devfs removed the problem (very reproducable with software raid 5 -- never really tried much heavy disk use without raid.)
Edward King
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