On 03/03/14 18:58 +0100, Gerald Schaefer wrote: > I checked again with 3.10 and 3.11, and couldn't reproduce the warning > there. However, there is another warning on those kernel versions: > > mlx4_core 0000:00:00.0: DMA-API: device driver failed to check map > error[device address=0x00000001046af186] [size=258 bytes] [mapped as single] > > That one was fixed with commit 237a3a3b "net/mlx4_en: Fix handling of dma_map > failure". > When I apply commit 237a3a3b on top of 3.11, I can also reproduce the > new "sync DMA" warning there. > > So, either the new "sync DMA" warning was introduced with commit 237a3a3b, > or it was just occluded by the previous "map error" warning. Hi Gerald, Thanks for the update and for your efforts on investigating this issue, we are currently working on reproducing this issue on our lab in order to understand thoroughly the root cause.
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