On Wednesday 25 May 2011 19:37:01 Shah, Vishal wrote:
> Hi Hans Petter,
>
> Thanks for looking into this.
> The command is not hanging on a USB device. The issue is, command never
> reaches the USB device. As I understand it, after receiving the command
> from the upper layers, umass layer will ju
d-usb@FreeBSD.org; Ranaweera, Samantha; Faylor,
Christopher
Subject: Re: System hang in USB umass module while processing panic
On Wednesday 25 May 2011 17:01:24 Andriy Gapon wrote:
> on 19/05/2011 22:27 Shah, Vishal said the following:
> > In FreeBSD 8 USB driver, commands are asynchronously s
On Wednesday 25 May 2011 17:01:24 Andriy Gapon wrote:
> on 19/05/2011 22:27 Shah, Vishal said the following:
> > In FreeBSD 8 USB driver, commands are asynchronously sent from umass
> > layer onto the wire, in other words, multiple threads are involved
> > before the command is sent from the umass
on 19/05/2011 22:27 Shah, Vishal said the following:
> In FreeBSD 8 USB driver, commands are asynchronously sent from umass layer
> onto
> the wire, in other words, multiple threads are involved before the command is
> sent from the umass layer all the way to the wire. Since the usb_proc is not
>
Hi Folks,
This is regarding the issue we saw in the USB driver of FreeBSD 8,
particularly umass driver. We have a USB flash device in our system.
The issue is, when the system panics, it gets into the uni-processor
mode, and while processing that panic, scsi layer shutdown handler
(dashutdo