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

[Rin Okuyama]

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