https://bugzilla.kernel.org/show_bug.cgi?id=215740 --- Comment #16 from Ferry Toth (ferry.toth@xxxxxxxxxxxx) --- 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 ... -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
