Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 11 Apr 2010 03:03:09 +0400
From:      Mikle Krutov <nekoexmachina@gmail.com>
To:        Hans Petter Selasky <hselasky@c2i.net>
Cc:        freebsd-gnats-submit@freebsd.org, freebsd-usb@freebsd.org
Subject:   Re: usb/145513: New USB stack: no new devices after forced usb flash detach
Message-ID:  <20100410230309.GA1388@takino.homeftp.org>
In-Reply-To: <201004081929.43956.hselasky@c2i.net>
References:  <201004081055.o38Atibu074389@www.freebsd.org> <201004081352.50108.hselasky@c2i.net> <20100408171403.GA58040@takino.homeftp.org> <201004081929.43956.hselasky@c2i.net>

index | next in thread | previous in thread | raw e-mail

On Thu, Apr 08, 2010 at 07:29:43PM +0200, Hans Petter Selasky wrote:
> On Thursday 08 April 2010 19:14:03 Mikle Krutov wrote:
> > On Thu, Apr 08, 2010 at 01:52:50PM +0200, Hans Petter Selasky wrote:
> > > Hi,
> > >
> > > That's because the UMASS detach is hanging, most likely.
> > >
> > > Try to break into the kernel and get a backtrace.
> > >
> > > --HPS
> > 
> > Hi,
> > I unfortunately could not find any info about how do i do this. Could
> > you provide me some link?
> > 
> 
> Add:
> 
> options         KDB                     # Enable kernel debugger support.
> options         DDB                     # Support DDB.
> options         GDB                     # Support remote GDB.
> 
> When it hangs, enter this from the console:
> 
> sysctl debug.kdb.panic=1
> 
> Type
> 
> alltrace
> 
> bt
> 
> bt all
> 
> or something similar.
> 
> Type "continue" when you are finished.
> 
> You can also use CTRL+ALT+ESC key combination.
> 
> --HPS
Sorry for no-response for such a long time, that was because after the
kernel-update (i've fetched the latest sources before rebuilding with
debug support) i could not reproduce that bug. Before kernel-update it
has happened not every time, so i wanted to see what happends for a
couple of days.

-- 
Wbr,
Krutov Mikle


help

Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20100410230309.GA1388>