Messages in this thread | | | Date | Fri, 17 Apr 2015 17:14:20 +0200 | Subject | Re: Error: DMA: Out of SW-IOMMU space [was: External USB drives become unresponsive after few hours.] | From | Dorian Gray <> |
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On 16 April 2015 at 20:42, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote: > And easier way is to compile the kernel with CONFIG_DMA_API_DEBUG > and then load the attached module. > > That should tell you who and what else is holding on the buffers.
Ok, I have compiled 3.19.4 w/ CONFIG_DMA_API_DEBUG=y + the module you sent me. Now, I'm not sure if I've done it right - I waited until the error occured and then modprobe'd dump_dma. I have attached the kernel log, but it tells me not much, if anything...
Thanks again. Jake [unhandled content-type:application/x-bzip2] | |