Hi,
On Tue, Mar 05, 2019 at 11:30:28AM +, Måns Rullgård wrote:
[...]
> > Thanks for the info.
> > I will handle this case in musb driver.
>
> What's happening to this? There's no immediate urgency from my side,
> but I don't want it to get forgotten either.
no, it is not forgotten. it is
Bin Liu writes:
> On Wed, Jan 23, 2019 at 03:55:47PM +0100, Johan Hovold wrote:
>> On Wed, Jan 23, 2019 at 08:09:47AM -0600, Bin Liu wrote:
>> > On Wed, Jan 23, 2019 at 09:55:49AM +0100, Johan Hovold wrote:
>> > > On Wed, Jan 23, 2019 at 07:52:12AM +0100, Greg Kroah-Hartman wrote:
>>
>> > > > Th
On Thu, Jan 24, 2019 at 04:31:19PM +, Måns Rullgård wrote:
> Bin Liu writes:
>
> > On Thu, Jan 24, 2019 at 12:56:33PM +, Måns Rullgård wrote:
> >> Johan Hovold writes:
> >>
> >> > On Wed, Jan 23, 2019 at 08:50:38PM +, Måns Rullgård wrote:
> >> >> Bin Liu writes:
> >> >>
> >> >> >>
Bin Liu writes:
> On Thu, Jan 24, 2019 at 12:56:33PM +, Måns Rullgård wrote:
>> Johan Hovold writes:
>>
>> > On Wed, Jan 23, 2019 at 08:50:38PM +, Måns Rullgård wrote:
>> >> Bin Liu writes:
>> >>
>> >> >> > > Why doesn't the same problem occur with other types of host
>> >> >> > > co
On Thu, Jan 24, 2019 at 10:49:30AM -0500, Alan Stern wrote:
> On Thu, 24 Jan 2019, Bin Liu wrote:
>
> > > Perhaps it has something to do with the timing of the completion
> > > interrupts. I don't know anything about how musb works, though. Some
> > > low-level timing information would be good
On Thu, 24 Jan 2019, Bin Liu wrote:
> > Perhaps it has something to do with the timing of the completion
> > interrupts. I don't know anything about how musb works, though. Some
> > low-level timing information would be good to see.
>
> The musb controller driver itself doesn't have a isr BH,
On Thu, Jan 24, 2019 at 10:22:26AM -0500, Alan Stern wrote:
> On Thu, 24 Jan 2019, Johan Hovold wrote:
>
> > > At least when -EPROTO errors are caused by device disconnect, we know
> > > that they will eventually go away when the upstream hub reports the
> > > port disconnect event. But until t
On Thu, Jan 24, 2019 at 12:56:33PM +, Måns Rullgård wrote:
> Johan Hovold writes:
>
> > On Wed, Jan 23, 2019 at 08:50:38PM +, Måns Rullgård wrote:
> >> Bin Liu writes:
> >>
> >> >> > > Why doesn't the same problem occur with other types of host
> >> >> > > controller?
> >> >> >
> >> >
On Thu, 24 Jan 2019, Johan Hovold wrote:
> > At least when -EPROTO errors are caused by device disconnect, we know
> > that they will eventually go away when the upstream hub reports the
> > port disconnect event. But until then, an interrupt storm is certainly
> > possible.
>
> Indeed, and t
Johan Hovold writes:
> On Wed, Jan 23, 2019 at 08:50:38PM +, Måns Rullgård wrote:
>> Bin Liu 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
>> >> >
On Wed, Jan 23, 2019 at 08:50:38PM +, Måns Rullgård wrote:
> Bin Liu 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
On Wed, Jan 23, 2019 at 11:05:40AM -0500, Alan Stern wrote:
> On Wed, 23 Jan 2019, Bin Liu wrote:
>
> > On Wed, Jan 23, 2019 at 03:55:47PM +0100, Johan Hovold wrote:
> > > On Wed, Jan 23, 2019 at 08:09:47AM -0600, Bin Liu wrote:
> > > > On Wed, Jan 23, 2019 at 09:55:49AM +0100, Johan Hovold wrote:
On Wed, Jan 23, 2019 at 02:12:38PM -0600, Bin Liu wrote:
> > > > > Thanks for the info.
> > > > > I will handle this case in musb driver.
> > > >
> > > > 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 H
Bin Liu 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
On Wed, 23 Jan 2019, Bin Liu wrote:
> On Wed, Jan 23, 2019 at 12:42:36PM -0500, Alan Stern wrote:
> > On Wed, 23 Jan 2019, Bin Liu wrote:
> >
> > > > One possibility is to giveback URBs with certain errors (such as
> > > > -EPROTO) only at a frame boundary, or at 1-ms intervals. This feels
> >
On Wed, Jan 23, 2019 at 12:42:36PM -0500, Alan Stern wrote:
> On Wed, 23 Jan 2019, Bin Liu wrote:
>
> > > One possibility is to giveback URBs with certain errors (such as
> > > -EPROTO) only at a frame boundary, or at 1-ms intervals. This feels
> > > like a very artificial solution, though.
> >
On Wed, 23 Jan 2019, Bin Liu wrote:
> > One possibility is to giveback URBs with certain errors (such as
> > -EPROTO) only at a frame boundary, or at 1-ms intervals. This feels
> > like a very artificial solution, though.
>
> My plan is to add an error counter in musb driver endpoint struct, if
On Wed, Jan 23, 2019 at 11:05:40AM -0500, Alan Stern wrote:
> On Wed, 23 Jan 2019, Bin Liu wrote:
>
> > On Wed, Jan 23, 2019 at 03:55:47PM +0100, Johan Hovold wrote:
> > > On Wed, Jan 23, 2019 at 08:09:47AM -0600, Bin Liu wrote:
> > > > On Wed, Jan 23, 2019 at 09:55:49AM +0100, Johan Hovold wrote:
On Wed, 23 Jan 2019, Bin Liu wrote:
> On Wed, Jan 23, 2019 at 03:55:47PM +0100, Johan Hovold wrote:
> > On Wed, Jan 23, 2019 at 08:09:47AM -0600, Bin Liu wrote:
> > > On Wed, Jan 23, 2019 at 09:55:49AM +0100, Johan Hovold wrote:
> > > > On Wed, Jan 23, 2019 at 07:52:12AM +0100, Greg Kroah-Hartman
On Wed, Jan 23, 2019 at 03:55:47PM +0100, Johan Hovold wrote:
> On Wed, Jan 23, 2019 at 08:09:47AM -0600, Bin Liu wrote:
> > On Wed, Jan 23, 2019 at 09:55:49AM +0100, Johan Hovold wrote:
> > > On Wed, Jan 23, 2019 at 07:52:12AM +0100, Greg Kroah-Hartman wrote:
>
> > > > That's not what any other h
On Wed, Jan 23, 2019 at 08:09:47AM -0600, Bin Liu wrote:
> On Wed, Jan 23, 2019 at 09:55:49AM +0100, Johan Hovold wrote:
> > On Wed, Jan 23, 2019 at 07:52:12AM +0100, Greg Kroah-Hartman wrote:
> > > That's not what any other host controller returns when a device is
> > > removed, so either you are
On Wed, Jan 23, 2019 at 09:55:49AM +0100, Johan Hovold wrote:
> On Wed, Jan 23, 2019 at 07:52:12AM +0100, Greg Kroah-Hartman wrote:
> > On Tue, Jan 22, 2019 at 02:52:44PM -0600, Bin Liu wrote:
> > > Hi Johan,
> > >
> > > On Tue, Jan 22, 2019 at 02:16:30PM -0600, Bin Liu wrote:
> > > > On Tue, Jan
On Wed, Jan 23, 2019 at 07:52:12AM +0100, Greg Kroah-Hartman wrote:
> On Tue, Jan 22, 2019 at 02:52:44PM -0600, Bin Liu wrote:
> > Hi Johan,
> >
> > On Tue, Jan 22, 2019 at 02:16:30PM -0600, Bin Liu wrote:
> > > On Tue, Jan 22, 2019 at 05:19:39PM +, Måns Rullgård wrote:
> > > > Bin Liu writes
On Tue, Jan 22, 2019 at 02:52:44PM -0600, Bin Liu wrote:
> Hi Johan,
>
> On Tue, Jan 22, 2019 at 02:16:30PM -0600, Bin Liu wrote:
> > On Tue, Jan 22, 2019 at 05:19:39PM +, Måns Rullgård wrote:
> > > Bin Liu writes:
> > >
> > > > On Mon, Jan 21, 2019 at 09:20:52PM +, Måns Rullgård wrote:
Hi Johan,
On Tue, Jan 22, 2019 at 02:16:30PM -0600, Bin Liu wrote:
> On Tue, Jan 22, 2019 at 05:19:39PM +, Måns Rullgård wrote:
> > Bin Liu writes:
> >
> > > On Mon, Jan 21, 2019 at 09:20:52PM +, Måns Rullgård wrote:
> > >> Bin Liu writes:
> > >>
> > >> > On Fri, Jan 18, 2019 at 08:15:
On Tue, Jan 22, 2019 at 05:19:39PM +, Måns Rullgård wrote:
> Bin Liu writes:
>
> > On Mon, Jan 21, 2019 at 09:20:52PM +, Måns Rullgård wrote:
> >> Bin Liu writes:
> >>
> >> > On Fri, Jan 18, 2019 at 08:15:02PM +, Måns Rullgård wrote:
> >> >> Bin Liu writes:
> >> >>
> >> >> > On Mo
Bin Liu writes:
> On Mon, Jan 21, 2019 at 09:20:52PM +, Måns Rullgård wrote:
>> Bin Liu writes:
>>
>> > On Fri, Jan 18, 2019 at 08:15:02PM +, Måns Rullgård wrote:
>> >> Bin Liu writes:
>> >>
>> >> > On Mon, Dec 17, 2018 at 09:36:17PM +, Måns Rullgård wrote:
>> >> >> Bin Liu write
On Mon, Jan 21, 2019 at 09:20:52PM +, Måns Rullgård wrote:
> Bin Liu writes:
>
> > On Fri, Jan 18, 2019 at 08:15:02PM +, Måns Rullgård wrote:
> >> Bin Liu writes:
> >>
> >> > On Mon, Dec 17, 2018 at 09:36:17PM +, Måns Rullgård wrote:
> >> >> Bin Liu writes:
> >> >>
> >> >> > On Mo
Bin Liu writes:
> On Fri, Jan 18, 2019 at 08:15:02PM +, Måns Rullgård wrote:
>> Bin Liu writes:
>>
>> > On Mon, Dec 17, 2018 at 09:36:17PM +, Måns Rullgård wrote:
>> >> Bin Liu writes:
>> >>
>> >> > On Mon, Dec 17, 2018 at 07:16:08PM +, Måns Rullgård wrote:
>> >> >> Bin Liu write
On Fri, Jan 18, 2019 at 08:15:02PM +, Måns Rullgård wrote:
> Bin Liu writes:
>
> > On Mon, Dec 17, 2018 at 09:36:17PM +, Måns Rullgård wrote:
> >> Bin Liu writes:
> >>
> >> > On Mon, Dec 17, 2018 at 07:16:08PM +, Måns Rullgård wrote:
> >> >> Bin Liu writes:
> >> >>
> >> >> > Hi,
>
Bin Liu writes:
> On Mon, Dec 17, 2018 at 09:36:17PM +, Måns Rullgård wrote:
>> Bin Liu writes:
>>
>> > On Mon, Dec 17, 2018 at 07:16:08PM +, Måns Rullgård wrote:
>> >> Bin Liu writes:
>> >>
>> >> > Hi,
>> >> >
>> >> > On Mon, Dec 17, 2018 at 03:13:12PM +, Måns Rullgård wrote:
>>
On Mon, Dec 17, 2018 at 09:36:17PM +, Måns Rullgård wrote:
> Bin Liu writes:
>
> > On Mon, Dec 17, 2018 at 07:16:08PM +, Måns Rullgård wrote:
> >> Bin Liu writes:
> >>
> >> > Hi,
> >> >
> >> > On Mon, Dec 17, 2018 at 03:13:12PM +, Måns Rullgård wrote:
> >> >> I have a strange proble
Bin Liu writes:
> On Mon, Dec 17, 2018 at 07:16:08PM +, Måns Rullgård wrote:
>> Bin Liu writes:
>>
>> > Hi,
>> >
>> > On Mon, Dec 17, 2018 at 03:13:12PM +, Måns Rullgård wrote:
>> >> I have a strange problem with the musb driver in host mode on AM3358
>> >> (beaglebone) hardware. If I
Bin Liu writes:
> On Mon, Dec 17, 2018 at 07:16:08PM +, Måns Rullgård wrote:
>> Bin Liu writes:
>>
>> > Hi,
>> >
>> > On Mon, Dec 17, 2018 at 03:13:12PM +, Måns Rullgård wrote:
>> >> I have a strange problem with the musb driver in host mode on AM3358
>> >> (beaglebone) hardware. If I
On Mon, Dec 17, 2018 at 07:16:08PM +, Måns Rullgård wrote:
> Bin Liu writes:
>
> > Hi,
> >
> > On Mon, Dec 17, 2018 at 03:13:12PM +, Måns Rullgård wrote:
> >> I have a strange problem with the musb driver in host mode on AM3358
> >> (beaglebone) hardware. If I connect a multi-port serial
Bin Liu writes:
> Hi,
>
> On Mon, Dec 17, 2018 at 03:13:12PM +, Måns Rullgård wrote:
>> I have a strange problem with the musb driver in host mode on AM3358
>> (beaglebone) hardware. If I connect a multi-port serial adapter and
>> open two or more of the ttys, then unplug the device, an inte
Hi,
On Mon, Dec 17, 2018 at 03:13:12PM +, Måns Rullgård wrote:
> I have a strange problem with the musb driver in host mode on AM3358
> (beaglebone) hardware. If I connect a multi-port serial adapter and
> open two or more of the ttys, then unplug the device, an interrupt storm
> ensues that
I have a strange problem with the musb driver in host mode on AM3358
(beaglebone) hardware. If I connect a multi-port serial adapter and
open two or more of the ttys, then unplug the device, an interrupt storm
ensues that makes the system completely unresponsive until the watchdog
resets it. Enab
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