From: Alan Stern <stern@rowland.harvard.edu>
To: Anssi Hannula <anssi.hannula@iki.fi>
Cc: Oliver Neukum <oliver@neukum.org>,
Matthew Garrett <mjg59@srcf.ucam.org>, <dvomlehn@cisco.com>,
<gregkh@suse.de>, <linux-usb@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [REGRESSION] "USB: use kfifo to buffer usb-generic serial writes" causes gobi_loader to hang
Date: Fri, 12 Feb 2010 21:50:04 -0500 (EST) [thread overview]
Message-ID: <Pine.LNX.4.44L0.1002122148050.13658-100000@netrider.rowland.org> (raw)
In-Reply-To: <4B7609BD.7010009@iki.fi>
On Sat, 13 Feb 2010, Anssi Hannula wrote:
> On 05.02.2010 23:59, Oliver Neukum wrote:
> > Am Freitag, 5. Februar 2010 20:58:17 schrieb Matthew Garrett:
> >> drivers/usb/serial/usb-serial.c: usb_serial_port_work - port 0
> >> drivers/usb/serial/usb-serial.c: serial_write - port 0, 2048 byte(s)
> >> drivers/usb/serial/generic.c: usb_serial_generic_write - port 0, 2048 bytes
> >> drivers/usb/serial/generic.c: usb_serial_generic_write - put 512 bytes into fifo
> >> drivers/usb/serial/usb-serial.c: serial_write - port 0, 1536 byte(s)
> >> drivers/usb/serial/generic.c: usb_serial_generic_write - port 0, 1536 bytes
> >> drivers/usb/serial/generic.c: usb_serial_generic_write - put 0 bytes into fifo
> >> drivers/usb/serial/generic.c: usb_serial_generic_write - FIFO is full
> >
> > OK, could you also get an usbmon trace? This would allow a determination
> > whether the submitted URB doesn't finish for some reason, or whether
> > no URB is submitted, possibly because a wakeup is missed.
>
> I'm also affected by this regression. Here's an usbmon trace of
> gobi_loader hanging:
> http://stuff.onse.fi/gobi2000/gobi-regression.mon.log
That's odd. The log shows the final bulk-OUT transfer was cancelled
after less than 1 ms. Is there a timeout value somewhere that is too
small by a factor of 1000?
Alan Stern
next prev parent reply other threads:[~2010-02-13 2:50 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-17 2:55 [REGRESSION] "USB: use kfifo to buffer usb-generic serial writes" causes gobi_loader to hang Matthew Garrett
2010-01-17 8:13 ` Marcel Holtmann
2010-01-17 9:14 ` Oliver Neukum
2010-01-18 1:58 ` Matthew Garrett
2010-01-18 17:25 ` Oliver Neukum
2010-01-18 20:14 ` Matthew Garrett
2010-01-19 13:20 ` Oliver Neukum
2010-01-19 13:29 ` Alan Cox
2010-01-19 13:57 ` Oliver Neukum
2010-01-19 14:21 ` Alan Cox
2010-01-19 15:15 ` Oliver Neukum
2010-01-19 14:26 ` Alan Cox
2010-01-19 15:25 ` Johan Hovold
2010-01-19 15:52 ` Johan Hovold
2010-01-19 16:27 ` Alan Cox
2010-01-19 18:44 ` Oliver Neukum
2010-01-19 19:45 ` Johan Hovold
2010-01-28 17:45 ` Greg KH
2010-01-28 18:40 ` Oliver Neukum
2010-01-28 22:32 ` Greg KH
2010-02-03 16:46 ` Matthew Garrett
2010-02-03 17:21 ` Oliver Neukum
2010-02-03 22:37 ` Matthew Garrett
2010-02-03 22:58 ` Oliver Neukum
2010-02-05 19:58 ` Matthew Garrett
2010-02-05 21:35 ` Matthew Garrett
2010-02-08 19:00 ` Oliver Neukum
2010-02-05 21:59 ` Oliver Neukum
2010-02-13 2:09 ` Anssi Hannula
2010-02-13 2:50 ` Alan Stern [this message]
2010-02-13 7:11 ` Oliver Neukum
2010-02-13 13:35 ` Anssi Hannula
2010-02-13 19:01 ` Anssi Hannula
2010-02-15 13:08 ` Oliver Neukum
2010-02-20 16:03 ` Anssi Hannula
2010-02-20 18:19 ` Oliver Neukum
2010-02-21 21:28 ` Alan Stern
2010-02-21 21:42 ` Anssi Hannula
2010-02-21 22:12 ` Oliver Neukum
2010-02-21 23:06 ` Anssi Hannula
2010-02-21 23:13 ` Anssi Hannula
2010-02-21 23:21 ` Anssi Hannula
2010-02-22 15:28 ` Alan Stern
2010-02-22 18:35 ` Anssi Hannula
2010-02-22 19:10 ` Alan Stern
2010-02-22 19:14 ` Matthew Garrett
2010-02-22 20:12 ` Alan Stern
2010-02-24 2:33 ` Anssi Hannula
2010-02-22 19:24 ` Anssi Hannula
2010-02-22 20:10 ` Alan Stern
2010-02-22 21:24 ` Alan Cox
2010-02-22 21:23 ` Matthew Garrett
2010-02-22 23:26 ` Oliver Neukum
2010-02-23 1:55 ` Anssi Hannula
2010-02-21 22:09 ` Oliver Neukum
2010-02-21 21:37 ` Anssi Hannula
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