From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <46FEE3D6.1090003@domain.hid> Date: Sat, 29 Sep 2007 19:46:30 -0400 From: Brian Zenowich MIME-Version: 1.0 References: <46FED989.6000402@domain.hid> In-Reply-To: <46FED989.6000402@domain.hid> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Xenomai-help] Functional difference between tty and xterm? List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: xenomai@xenomai.org Nevermind. Adding "Option NoAccel True" to xorg.conf (i810 driver) fixed it. I thought this was just to reduce latencies. I didn't realize I couldn't even access my CAN card without it! Thanks, -Brian Z. Brian Zenowich wrote: > Hello, > > I am using kernel 2.6.20.14 with Xenomai 2.3.1 and the Peak CAN driver > 6.4. This is the only combination I can get to coexist peacefully. I > have tried 20.18/2.3.3 and 22.9/2.4rc3 but the former fails xeno-test, > and the latter hangs on boot when loading the Peak driver. > > I have a Core2 Duo. Kernel SMP is enabled. SMI/ACPI/APM is all > configured to make Xenomai happy. User-space Xenomai was NOT configured > with --enable-smp. > > My ncurses-based program runs well from the tty (as root), but if I > 'startx' and try to run my program from an xterm window (still as root), > it hangs the machine at the moment it calls CAN_Init(). CAN_Init() is > essentially a call to rt_dev_open("/dev/pcan0", 0_RDWR). I am using a > PCI CAN card. > > I am able to launch my program from the tty, then switch to a new tty > and startx from there. If I switch back to my program's tty, it is still > humming along. > > Do you have any thoughts as to what is the difference (from a Xenomai > user-space program's point of view) between running in a tty and running > in an xterm? > > Why would the rt_dev_open() call work from a tty, but not in an xterm? > > Thanks for any insight you might have, > > -Brian Z. > > _______________________________________________ > Xenomai-help mailing list > Xenomai-help@domain.hid > https://mail.gna.org/listinfo/xenomai-help