[Bug 215740] kernel warning: DMA-API: xhci_hcd: cacheline tracking EEXIST, overlapping mappings aren't supported

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=215740

--- Comment #16 from Ferry Toth (ferry.toth@elsinga.info) ---
Created attachment 305426
  --> https://bugzilla.kernel.org/attachment.cgi?id=305426&action=edit
ftrace, hub plugged at 131, mouse plugged into hub at 141

Sure. And added a ftrace see attachment trace_hub.txt.

In journal I got:
...
Nov 19 20:57:45 yuna kernel: ---[ end trace 0000000000000000 ]---
Nov 19 20:57:45 yuna kernel: DMA-API: Mapped at:
Nov 19 20:57:45 yuna kernel:  debug_dma_map_page+0x6d/0x100
Nov 19 20:57:45 yuna kernel:  dma_map_page_attrs+0x10a/0x280
Nov 19 20:57:45 yuna kernel:  usb_hcd_map_urb_for_dma+0x419/0x5c0
Nov 19 20:57:45 yuna kernel:  usb_hcd_submit_urb+0xa0/0xaa0
Nov 19 20:57:45 yuna kernel:  usb_start_wait_urb+0x65/0x100
Nov 19 20:57:45 yuna kernel: Map error: ffffd221000e02c0 ffff916fc336b4a0
Nov 19 20:57:45 yuna kernel: Map error: ffffd221000e02c0 ffff916fc336b4a0
Nov 19 20:57:45 yuna kernel: usb 1-1.1: new low-speed USB device number 3 using
xhci-hcd
Nov 19 20:57:45 yuna kernel: Map error: ffffd221000e02c0 ffff916fc336b4a0
...

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