All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Måns Rullgård" <mans@mansr.com>
To: Bin Liu <b-liu@ti.com>
Cc: Alan Stern <stern@rowland.harvard.edu>,
	Johan Hovold <johan@kernel.org>, Greg KH <greg@kroah.com>,
	linux-usb@vger.kernel.org
Subject: MUSB interrupt storm on device removal
Date: Wed, 23 Jan 2019 20:50:38 +0000	[thread overview]
Message-ID: <yw1xlg3b14kh.fsf@mansr.com> (raw)

Bin Liu <b-liu@ti.com> writes:

>> > > Why doesn't the same problem occur with other types of host controller?
>> > 
>> > Not sure, I am on musb for most of the times. Maybe other HCD doesn't
>> > giveback URBs with -EPROTO in such error case.
>> 
>> ehci-hcd also uses -EPROTO.
>
> Is it possible to test the use case on ehci?
>
> - connect a multi-ports usb serial device to a hub;
> - open multiple ports with cat command;
> - remove the usb serial device from the hub;
> - console lockup happens?

It doesn't seem to happen using ehci or even musb on Allwinner A20.
I have only seen the problem with musb on AM3358.

             reply	other threads:[~2019-01-23 20:50 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-23 20:50 Måns Rullgård [this message]
  -- strict thread matches above, loose matches on Subject: below --
2019-03-07 16:16 MUSB interrupt storm on device removal Bin Liu
2019-03-05 11:30 Måns Rullgård
2019-01-25 15:43 Bin Liu
2019-01-24 16:31 Måns Rullgård
2019-01-24 15:54 Bin Liu
2019-01-24 15:49 Alan Stern
2019-01-24 15:43 Bin Liu
2019-01-24 15:40 Bin Liu
2019-01-24 15:22 Alan Stern
2019-01-24 12:56 Måns Rullgård
2019-01-24  9:25 Johan Hovold
2019-01-24  9:22 Johan Hovold
2019-01-24  8:11 Greg Kroah-Hartman
2019-01-23 20:44 Alan Stern
2019-01-23 20:12 Bin Liu
2019-01-23 17:42 Alan Stern
2019-01-23 16:53 Bin Liu
2019-01-23 16:05 Alan Stern
2019-01-23 15:21 Bin Liu
2019-01-23 14:55 Johan Hovold
2019-01-23 14:09 Bin Liu
2019-01-23  8:55 Johan Hovold
2019-01-23  6:52 Greg KH
2019-01-22 20:52 Bin Liu
2019-01-22 20:16 Bin Liu
2019-01-22 17:19 Måns Rullgård
2019-01-22 14:57 Bin Liu
2019-01-21 21:20 Måns Rullgård
2019-01-21 16:31 Bin Liu
2019-01-18 20:15 Måns Rullgård
2019-01-10  3:07 Bin Liu
2019-01-09 13:19 Måns Rullgård
2018-12-17 21:36 Måns Rullgård
2018-12-17 20:56 Bin Liu
2018-12-17 19:16 Måns Rullgård
2018-12-17 18:44 Bin Liu
2018-12-17 15:13 Måns Rullgård

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=yw1xlg3b14kh.fsf@mansr.com \
    --to=mans@mansr.com \
    --cc=b-liu@ti.com \
    --cc=greg@kroah.com \
    --cc=johan@kernel.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=stern@rowland.harvard.edu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.