Today's kvalo/ath.git crashes upon trying to load beeliner NIC.

Ben Greear greearb at
Tue Dec 29 15:27:10 PST 2015

This is with stock firmware.  It was at least somewhat working back
in the 4.3-rc6 time-frame.....

DMA: Out of SW-IOMMU space for 274432 bytes at device 0000:05:00.0
Kernel panic - not syncing: DMA: Random memory could be DMA read

CPU: 0 PID: 256 Comm: kworker/u8:3 Not tainted 4.4.0-rc7-wt-ath+ #32
Hardware name: To be filled by O.E.M. To be filled by O.E.M./HURONRIVER, BIOS 4.6.5 05/02/2012
Workqueue: ath10k_aux_wq ath10k_wmi_event_service_ready_work [ath10k_core]
  0000000000000000 ffff8802138dfc38 ffffffff813388c8 ffffffff81ab333b
  ffff8802138dfcb8 ffffffff81196589 ffff880200000008 ffff8802138dfcc8
  ffff8802138dfc60 ffffffff811968f5 ffff88021ea0dab8 0000000000000042
Call Trace:
  [<ffffffff813388c8>] dump_stack+0x4b/0x6c
  [<ffffffff81196589>] panic+0xc2/0x209
  [<ffffffff811968f5>] ? printk+0x43/0x4b
  [<ffffffff8135c0bc>] swiotlb_map_page+0xe0/0x178
  [<ffffffffa0dbf3f4>] dma_map_single_attrs.constprop.33+0x6c/0x6e [ath10k_core]
  [<ffffffffa0dc5dc5>] ath10k_wmi_event_service_ready_work+0x4c6/0x561 [ath10k_core]
  [<ffffffff810fa734>] process_one_work+0x151/0x261
  [<ffffffff810facd7>] worker_thread+0x1e4/0x28f
  [<ffffffff810faaf3>] ? rescuer_thread+0x285/0x285
  [<ffffffff810feec1>] kthread+0xa0/0xa8
  [<ffffffff810fee21>] ? kthread_parkme+0x1f/0x1f
  [<ffffffff8169b70f>] ret_from_fork+0x3f/0x70
  [<ffffffff810fee21>] ? kthread_parkme+0x1f/0x1f
Kernel Offset: disabled
---[ end Kernel panic - not syncing: DMA: Random memory could be DMA read


Ben Greear <greearb at>
Candela Technologies Inc

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