Re: CVS commit: src/sys/dev/usb

[Rin Okuyama <rokuyama.rk%gmail.com@localhost>]

On 2019/02/17 13:17, Rin Okuyama wrote:
> Module Name:	src
> Committed By:	rin
> Date:		Sun Feb 17 04:17:31 UTC 2019
>
> Modified Files:
> 	src/sys/dev/usb: usbdi.c
>
> Log Message:
> Fix system freeze when USB NICs with multiple outstanding transfers
> are detached from xhci(4) or ehci(4), that enable up_serialise for
> bulk transfers.
>
> The cause of problem is that usbd_ar_pipe() waits xfers of
> USBD_NOT_STARTED to be removed, although underlying upm_abort
> functions do not remove such queues, as reported by "sc dying".
>
> Therefore, remove xfers of USBD_NOT_STARTED when pipe is closed.

Sorry,

pipe is closed
---> pipe is aborted

to be exact.

> Patch provided by Nick Hudson.
>
>
> To generate a diff of this commit:
> cvs rdiff -u -r1.181 -r1.182 src/sys/dev/usb/usbdi.c