[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Discuss-gnuradio] USB writing problem
From: |
Harvind Samra |
Subject: |
Re: [Discuss-gnuradio] USB writing problem |
Date: |
Tue, 11 Aug 2009 08:55:16 -0700 |
I'll check out the /var/log/messages the next time it happens.
--- Harvind
On Mon, 2009-08-10 at 11:04 -0700, Eric Blossom wrote:
> On Mon, Aug 10, 2009 at 10:48:57AM -0700, Harvind Samra wrote:
> > We've occasionally encountered cases, while running OpenBTS, where the
> > USRP code hang up and starts spitting out the following message
> > repeatedly:
> >
> > short write xfer: 0 != 3584
> >
> > In looking at fusb_linux.cc, it looks like USB writes suddenly cease to
> > complete. Sometimes, the host machine hangs so badly that a reboot is
> > needed.
> >
> > I know USB on linux has always had problems. So my questions are:
> >
> > 1) Is this problem specific to the USRP or does it have to do with
> > libusb?
> > 2) Is the specific to certain USB controllers?
> > 3) Has this bug been addressed in recent updates/releases to gnuradio?
> >
> > Any help is appreciated. Thanks.
> >
> > Harvind Samra
> > Kestrel Signal Processing, Inc.
>
> Hi Harvind!
>
> I've never seen this error.
> Have you checked the kernel logs?
> /var/log/messages is probably a good place to start.
>
> Eric