[okl4-developer] okl4 in qemu emulated gumstix environment

[Geoffrey Lee]

On Tue, Aug 26, 2008 at 05:55:28AM -0400, Ashish Bijlani wrote:
> I'm using okl4-1.4.1.1 and it doesn't seem to be having ig_serial
> under "linux/kernel/arch/l4/drivers", however it has "l4e_console". Is
> this normal? How do I enter KDB before executing /etc/init.d/rc?

The serial driver in 1.4.1.1 is quite different to what's in the
current release, hence it is normal not to find ig_serial.c.  Best
thing you can do is trace the execution path inside your driver.

You can manually call L4_KDB_Enter() to enter the debugger.

By the way is there any reason you cannot use a newer version of 
OKL4?


	-gl

> 
> Thanks,
> Ashish
> 
> On Tue, Aug 26, 2008 at 5:49 AM, Geoffrey Lee <glee at ok-labs.com> wrote:
> > On Tue, Aug 26, 2008 at 05:43:51AM -0400, Ashish Bijlani wrote:
> >> Thanks for your quick reply. However, I'm using okl4-1.4 and I didn't
> >> change anything in it. I get shell using skyeye but no network as
> >> skyeye does not emulate smc91x network card. I don't get shell in
> >> qemu. The face that it runs fine on skyeye, indicates that ig_serial
> >> has been configured properly, isn't it?
> >
> > Not necessarily, the simulator may sometimes behave differently
> > to how the hardware really behaves.  Please have a look around
> > the system to see if there are any clues of misbehavior, for
> > example, are you actually receiving any interrupts at all when
> > you hit a key on the serial?  Is the serial driver initialized
> > properly, or if vserial is present on the system at all?  Is there
> > any interaction between the vserial and OK Linux?  The KDB should be
> > quite helpful here.
> >
> >
> >        -gl
> >>
> >> -Ashish
> >>
> >> On Tue, Aug 26, 2008 at 5:39 AM, Geoffrey Lee <glee at ok-labs.com> wrote:
> >> > On Tue, Aug 26, 2008 at 05:04:57AM -0400, Ashish Bijlani wrote:
> >> >> Hi,
> >> >>
> >> >> I'm able to boot OKL4 in QEMU emulated gumstix environment. However,
> >> >> I'm not able to get "Linux user startup!" and following messages on
> >> >> the qemu serial console. Any ideas why?
> >> >>
> >> >> This is what I did:
> >> >>
> >> >> cp build/image.boot /tftpboot/.
> >> >> ../qemu-gumstix/arm-softmmu/qemu-system-arm -M gumstix -hda
> >> >> ../connex-gumstix/flash -net nic -net tap,ifname=qtap0  -m 256
> >> >> -monitor null -serial stdio -m 289 -nographic
> >> >>
> >> >> GUM>
> >> >> GUM> setenv ipaddr 10.0.0.231
> >> >> GUM> setenv serverip 10.0.0.29
> >> >> GUM> tftpboot a2000000 image.boot
> >> >> GUM> bootelf a2000000
> >> >>
> >> >> The OKL4 kernel, wombat, iguana everything is loaded and booted
> >> >> properly. However, I don't see any messages after :
> >> >>
> >> >> NET: Registered protocol family 15
> >> >> VFS: Mounted root (ext2 filesystem) readonly.
> >> >
> >> > This probably means ig_serial.c or the user-level serial driver
> >> > in drivers/ is misconfigured.  The kernel bootup messages get
> >> > shown via the KDB console, which gets routed to the driver
> >> > in the OKL4 kernel.  Once you get to Linux user startup
> >> > output gets routed through /dev/ttyS0, which is backed by
> >> > ig_serial.
> >> >
> >> >        -gl
> >> >
> >> >>
> >> >> Am I missing something?
> >> >>
> >> >> Thanks,
> >> >> Ashish
> >> >>
> >> >> _______________________________________________
> >> >> Developer mailing list
> >> >> Developer at okl4.org
> >> >> https://lists.okl4.org/mailman/listinfo/developer
> >> >>
> >> >
> >> > --
> >> >
> >> >
> >>
> >
> > --
> >
> >
> 

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