Re: port-i386/57662: StarTech ICUSB23208FD 8-Port USB-to-Serial Adapter Hub fails on Alix with NetBSD/i386 9.3

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

The following reply was made to PR port-i386/57662; it has been noted by GNATS.

From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
To: Alexander Schreiber <als%thangorodrim.ch@localhost>
Cc: gnats-bugs%netbsd.org@localhost, port-i386-maintainer%netbsd.org@localhost,
        gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: port-i386/57662: StarTech ICUSB23208FD 8-Port USB-to-Serial
 Adapter Hub fails on Alix with NetBSD/i386 9.3
Date: Mon, 16 Oct 2023 09:01:17 +0200

 On Mon, Oct 16, 2023 at 01:51:48AM +0200, Alexander Schreiber wrote:
 > On Sun, Oct 15, 2023 at 09:35:02PM +0000, Manuel Bouyer wrote:
 > > The following reply was made to PR port-i386/57662; it has been noted by GNATS.
 > > 
 > > From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
 > > To: gnats-bugs%netbsd.org@localhost
 > > Cc: port-i386-maintainer%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
 > >         netbsd-bugs%netbsd.org@localhost
 > > Subject: Re: port-i386/57662: StarTech ICUSB23208FD 8-Port USB-to-Serial
 > >  Adapter Hub fails on Alix with NetBSD/i386 9.3
 > > Date: Sun, 15 Oct 2023 23:31:07 +0200
 > > 
 > >  On Sun, Oct 15, 2023 at 08:45:01PM +0000, als%thangorodrim.ch@localhost wrote:
 > >  > [...]
 > >  > 
 > >  > I can then connect via "cu -l /dev/ttyU0 -s 115200" to an attached device,
 > >  > and disconnect via the "~." sequence. This works 1-2 times and then any further attempts to do so only yield "cu: link down" and then cu exiting.
 > >  > 
 > >  
 > >  I've seen this with other USB a non-USB serial ports.
 > >  Usually this is because the serial port is not completely closed (cu usually
 > >  has 2 processes running, one may be left over when exiting).
 > >  killing the leftover processes allows a new cu session to start
 > 
 > The fact that:
 >  - upon device plug-in, I get a "fatal breakpoint trap in supervisor mode"
 
 this I don't get. This should cause a panic or a drop to ddb,
 but in any case the kernel shouldn't keep running
 
 -- 
 Manuel Bouyer <bouyer%antioche.eu.org@localhost>
      NetBSD: 26 ans d'experience feront toujours la difference
 --