Displaying 2 results from an estimated 2 matches for "ioat_dma".
2015 Jan 19
1
reboot - is there a timeout on filesystem flush?
...one of these:
> hrtimer: interrupt took 258633 ns
>
> Not sure what those mean. We do have considerably more systems
> running windows than linux on this hardware and I don't think anyone
> has noticed a systemic problem there.
Was this resolved? The ioatdma messages are from ioat_dma.c, a
driver for Intel's I/OAT DMA engine typically used on high-end
server hardware to accelerate network I/O. chanerr = 2 might be
an issue with the DMA channel being in a suspended state when
the driver isn't expecting it to be. Maybe a network driver bug.
2015 Jan 07
2
reboot - is there a timeout on filesystem flush?
> On Jan 6, 2015, at 9:23 PM, Gordon Messmer <gordon.messmer at gmail.com> wrote:
>
> On 01/06/2015 04:37 PM, Gary Greene wrote:
>> This has been discussed to death on various lists, including the
>> LKML...
>>
>> Almost every controller and drive out there now lies about what is
>> and isn?t flushed to disk, making it nigh on impossible for the