Hello,
> > > usb 2-1: USB disconnect, address 2
> > > BUG: atomic counter underflow at:
> > > [<c010456a>] show_trace_log_lvl+0x1a/0x30
> > > [<c010508d>] show_trace+0x12/0x14
> > > [<c01051e0>] dump_stack+0x15/0x17
> > > [<c01418cf>] __free_pages+0x50/0x52
> > > [<c01418f0>] free_pages+0x1f/0x21
> > > [<c010783d>] dma_free_coherent+0x43/0x9c
> > > [<c0315067>] hcd_buffer_free+0x43/0x6a
> > > [<c030b2b4>] usb_buffer_free+0x23/0x29
> > > [<c0346db4>] hid_free_buffers+0x23/0x71
> > > [<c0346eb2>] hid_disconnect+0xb0/0xc8
> > > [<c0313676>] usb_unbind_interface+0x30/0x72
> > > [<c02c6df0>] __device_release_driver+0x6a/0x92
> > > [<c02c71c3>] device_release_driver+0x20/0x36
> > > [<c02c6736>] bus_remove_device+0x62/0x85
> > > [<c02c49f8>] device_del+0x16d/0x27c
> > > [<c0310f25>] usb_disable_device+0x7a/0xe2
> > > [<c030d0bc>] usb_disconnect+0x94/0xde
> > > [<c030e030>] hub_thread+0x2fe/0xc1b
> > > [<c0128aee>] kthread+0x36/0x58
> > > [<c0104233>] kernel_thread_helper+0x7/0x14
> > > =======================
> > > uhci_hcd 0000:00:0c.0: dma_pool_free buffer-32, 6b6b6b6b/6b6b6b6b (bad
> > > dma)
>
> Mariusz,
>
> I guess the patch below (which I have just added to my tree) fixes that,
> right? Thanks.
Yes - that's correct. This patch fixes the bug. Thanks.
Mariusz
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