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From: Greg KH <gregkh@linuxfoundation.org>
To: Christo Gouws <gouws.christo@gmail.com>
Cc: linux-usb@vger.kernel.org
Subject: Re: Line6 podstudio UX1 - driver crash on usb_hcd_map_urb_for_dma
Date: Sat, 27 Apr 2019 09:01:36 +0200	[thread overview]
Message-ID: <20190427070136.GE28250@kroah.com> (raw)
In-Reply-To: <CAPHvrskWo2yhtNRthWFMST-S_=afo06fZo7SmbBOKY7VXHWA-g@mail.gmail.com>

On Fri, Apr 26, 2019 at 11:50:14AM +0200, Christo Gouws wrote:
> Hi,
> 
> I have a Line6 Pod Studio UX1 card, but each time I plug it in, I get
> the following crash in dmesg on Ubuntu 18.04
> Linux my-pc 4.20.8-042008-generic #201902121544 SMP Tue Feb 12
> 20:46:50 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
> 
> I've also tested this with a Fedora 30 v5.0.6-300 kernel, but still
> seems to happen (using liveCD).
> 
> 
> The output on the card seems to work, but none of the inputs work.
> 
> I've also now tested with latest kernel available on Arch Linux
> Linux my-pc 5.0.9-arch1-1-ARCH #1 SMP PREEMPT Sat Apr 20 15:00:46 UTC
> 2019 x86_64 GNU/Linux
> 
> After some further testing, I found that this issue cropped in beween
> v4.8.17 and v4.9-rc1.
> 
> v4.8.17   - Works fine.
> v4.9-rc1+  - Produces crash

Any chance you can use 'git bisect' to find the exact commit that caused
the failure?

thanks,

greg k-h

  reply	other threads:[~2019-04-27  7:01 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-26  9:50 Line6 podstudio UX1 - driver crash on usb_hcd_map_urb_for_dma Christo Gouws
2019-04-27  7:01 ` Greg KH [this message]
2019-04-27 15:34   ` Alan Stern
2019-04-27 18:07 Greg Kroah-Hartman
2019-04-27 18:07 ` Greg KH
2019-04-27 18:24 Greg Kroah-Hartman
2019-04-27 18:24 ` Greg KH
2019-04-27 18:42 Greg Kroah-Hartman
2019-04-27 18:42 ` Greg KH
2019-04-28 10:50 Christo Gouws
2019-04-28 10:50 ` Christo Gouws
2019-04-28 16:00 Greg Kroah-Hartman
2019-04-28 16:00 ` Greg KH

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