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SubjectRe: libata/sata_nv latency on NVIDIA CK804 [was Re: AMD64 X2 lost ticks on PM timer]
On Wed, 2006-03-15 at 16:36 -0500, Bill Rugolsky Jr. wrote:
> <...>-2913 0d.h. 9us : ata_host_intr (nv_interrupt)
> <...>-2913 0d.h. 9us!: ata_bmdma_status (ata_host_intr)
> <...>-2913 0d.h. 16641us : nv_check_hotplug_ck804 (nv_interrupt)
> <...>-2913 0d.h. 16642us : _spin_unlock_irqrestore (nv_interrupt)

There's your problem - it looks like ata_bmdma_status() stalled the
machine for almost 17ms.


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