v3 error messages

[Myles Watson]

I can't get v3 for simnow to work with coreinfo as the payload.  I get no
VGA even if I enable it, VGA is never mentioned in the boot log, and it ends
with a triple fault:

cisc-cpu.cpp: CProcessor::GenerateException(): shutdown due to triple fault

Fatal error reached, stopping simulation.  Error message(s) follow:

cisc-cpu.cpp: CProcessor::GenerateException(): shutdown due to triple fault

NOTE:  Simulation cannot be restarted until a reset is asserted.
Simulation state CAN be inspected with the SimNow debugger.

-- end triple fault --

This error shows up in the boot log for simnow 4.4.4pub:
k8_domain_scan_bus
pci_scan_bus start bus 0x0000ce2c, bus->dev 0x0000cbe0
ERROR: pci_scan_bus called with incorrect bus->dev->path.type, path is
PCI_DOMAIN: 0000
PCI: pci_scan_bus for bus 00
pci_scan_bus: old_devices 0x0000cee0, dev for this bus 0x0000cbe0 (domain_0)
PCI: scan devfn 0xc0 to 0xff

It also shows up now in QEMU (it didn't use to.)
pci_domain_scan_bus: calling pci_scan_bus
pci_scan_bus start bus 0x0000ac0c, bus->dev 0x0000a9c0
ERROR: pci_scan_bus called with incorrect bus->dev->path.type, path is
PCI_DOMAIN: 0000
PCI: pci_scan_bus for bus 00

This "Not a multi function device" message is new to QEMU too.
PCI: 00:00.0 [PCI: 8086:1237] enabled
PCI: pci_scan_bus pci_probe_dev returns dev 0x0000b918(dynamic PCI: 00:00.0)
Not a multi function device, or the device is not present. Skip to next
device.
PCI: devfn 0x8
pci_scan_get_dev: list is 0x0008fee0, *list is 0x0000acc0

Has anyone gotten v3 + coreinfo to work on simnow 4.4.4pub?

Thanks,
Myles

[Jordan Crouse]

On 02/10/08 14:58 -0600, Myles Watson wrote:
> I can't get v3 for simnow to work with coreinfo as the payload.  I get no
> VGA even if I enable it, VGA is never mentioned in the boot log, and it ends
> with a triple fault:
>
> cisc-cpu.cpp: CProcessor::GenerateException(): shutdown due to triple fault
>
> Fatal error reached, stopping simulation.  Error message(s) follow:
>
> cisc-cpu.cpp: CProcessor::GenerateException(): shutdown due to triple fault
>
> NOTE:  Simulation cannot be restarted until a reset is asserted.
> Simulation state CAN be inspected with the SimNow debugger.
>
> -- end triple fault --
>
> This error shows up in the boot log for simnow 4.4.4pub:
> k8_domain_scan_bus
> pci_scan_bus start bus 0x0000ce2c, bus->dev 0x0000cbe0
> ERROR: pci_scan_bus called with incorrect bus->dev->path.type, path is
> PCI_DOMAIN: 0000
> PCI: pci_scan_bus for bus 00
> pci_scan_bus: old_devices 0x0000cee0, dev for this bus 0x0000cbe0 (domain_0)
> PCI: scan devfn 0xc0 to 0xff
>
> It also shows up now in QEMU (it didn't use to.)
> pci_domain_scan_bus: calling pci_scan_bus
> pci_scan_bus start bus 0x0000ac0c, bus->dev 0x0000a9c0
> ERROR: pci_scan_bus called with incorrect bus->dev->path.type, path is
> PCI_DOMAIN: 0000
> PCI: pci_scan_bus for bus 00
>
> This "Not a multi function device" message is new to QEMU too.
> PCI: 00:00.0 [PCI: 8086:1237] enabled
> PCI: pci_scan_bus pci_probe_dev returns dev 0x0000b918(dynamic PCI: 00:00.0)
> Not a multi function device, or the device is not present. Skip to next
> device.
> PCI: devfn 0x8
> pci_scan_get_dev: list is 0x0008fee0, *list is 0x0000acc0
>
> Has anyone gotten v3 + coreinfo to work on simnow 4.4.4pub?

I ran it once, but there were clearly some issues with it.
I got it running with serial, but it was clearly sick.

Can you figure out where it triple faulted?  That would be
useful for debugging.

Jordan

[ron minnich]

did you get any serial IO?

do a bx fffffff0, reset it, and start it up. I notice I always have to
reset each time I start it. No idea why.

ron

[Myles Watson]

> -----Original Message-----
> From: Jordan Crouse [mailto:[e-mail]]
> Sent: Thursday, October 02, 2008 3:39 PM
> To: Myles Watson
> Cc: Coreboot
> Subject: Re: v3 error messages
>
> On 02/10/08 14:58 -0600, Myles Watson wrote:
> > I can't get v3 for simnow to work with coreinfo as the payload.  I get
>
> no
> > VGA even if I enable it, VGA is never mentioned in the boot log, and it
>
> ends
> > with a triple fault:
> >
> > cisc-cpu.cpp: CProcessor::GenerateException(): shutdown due to triple
>
> fault
> > Fatal error reached, stopping simulation.  Error message(s) follow:
> >
> > cisc-cpu.cpp: CProcessor::GenerateException(): shutdown due to triple
>
> fault
> > NOTE:  Simulation cannot be restarted until a reset is asserted.
> > Simulation state CAN be inspected with the SimNow debugger.
> >
> > -- end triple fault --
> >
> > This error shows up in the boot log for simnow 4.4.4pub:
> > k8_domain_scan_bus
> > pci_scan_bus start bus 0x0000ce2c, bus->dev 0x0000cbe0
> > ERROR: pci_scan_bus called with incorrect bus->dev->path.type, path is
> > PCI_DOMAIN: 0000
> > PCI: pci_scan_bus for bus 00
> > pci_scan_bus: old_devices 0x0000cee0, dev for this bus 0x0000cbe0
>
> (domain_0)
> > PCI: scan devfn 0xc0 to 0xff
> >
> > It also shows up now in QEMU (it didn't use to.)
> > pci_domain_scan_bus: calling pci_scan_bus
> > pci_scan_bus start bus 0x0000ac0c, bus->dev 0x0000a9c0
> > ERROR: pci_scan_bus called with incorrect bus->dev->path.type, path is
> > PCI_DOMAIN: 0000
> > PCI: pci_scan_bus for bus 00
> >
> > This "Not a multi function device" message is new to QEMU too.
> > PCI: 00:00.0 [PCI: 8086:1237] enabled
> > PCI: pci_scan_bus pci_probe_dev returns dev 0x0000b918(dynamic PCI:
>
> 00:00.0)
> > Not a multi function device, or the device is not present. Skip to next
> > device.
> > PCI: devfn 0x8
> > pci_scan_get_dev: list is 0x0008fee0, *list is 0x0000acc0
> >
> > Has anyone gotten v3 + coreinfo to work on simnow 4.4.4pub?
>
> I ran it once, but there were clearly some issues with it.
> I got it running with serial, but it was clearly sick.
>
> Can you figure out where it triple faulted?  That would be
> useful for debugging.

It was after the payload started.  The serial console gets cleared and then
there is no more output until the triple fault.

Thanks,
Myles
> Jordan

[ron minnich]

On Thu, Oct 2, 2008 at 7:36 PM, Myles Watson  wrote:
> It was after the payload started.  The serial console gets cleared and then
> there is no more output until the triple fault.

can you try filo? I would like to see if we can get at least to both
having filo work.

ron

[Myles Watson]

On Thu, Oct 2, 2008 at 9:53 PM, ron minnich  wrote:
> On Thu, Oct 2, 2008 at 7:36 PM, Myles Watson  wrote:
> > It was after the payload started.  The serial console gets cleared and
>
> then
> > there is no more output until the triple fault.
>
> can you try filo? I would like to see if we can get at least to both
> having filo work.

Filo 75 comes up to its grub-like prompt in the serial console.  Even though
I enable option ROMS, VGA doesn't get initialized.

Thanks,
Myles
> ron

[ron minnich]

On Fri, Oct 3, 2008 at 8:29 AM, Myles Watson  wrote:
> Filo 75 comes up to its grub-like prompt in the serial console.  Even though
> I enable option ROMS, VGA doesn't get initialized.

and coreinfo requires vga?

I'd like to take on one broken thing at a time :-)

shall we take on vga? I don't think I'm even putting a vga bios in there yet.

ron

[Myles Watson]

> -----Original Message-----
> From: ron minnich [mailto:[e-mail]]
> Sent: Friday, October 03, 2008 9:31 AM
> To: Myles Watson
> Cc: Jordan Crouse; Coreboot
> Subject: Re: [coreboot] v3 error messages
>
> On Fri, Oct 3, 2008 at 8:29 AM, Myles Watson  wrote:
> > Filo 75 comes up to its grub-like prompt in the serial console.  Even
>
> though
> > I enable option ROMS, VGA doesn't get initialized.
>
> and coreinfo requires vga?
>
> I'd like to take on one broken thing at a time :-)
>
> shall we take on vga? I don't think I'm even putting a vga bios in there
> yet.

Sorry.  I didn't realize that was the root problem.  Lets put in VGA and see
where we get.

Thanks,
Myles
> ron

[Jordan Crouse]

On 03/10/08 08:31 -0700, ron minnich wrote:
> On Fri, Oct 3, 2008 at 8:29 AM, Myles Watson  wrote:
> > Filo 75 comes up to its grub-like prompt in the serial console.  Even though
> > I enable option ROMS, VGA doesn't get initialized.
>
> and coreinfo requires vga?
>
> I'd like to take on one broken thing at a time :-)
>
> shall we take on vga? I don't think I'm even putting a vga bios in there yet.

Coreinfo doesn't require VGA, but it does do probing and peeping of the 
PCI bus and other fun stuff.  THere isn't any guarntee that it isn't
finding a table it wants and freaking out.

I will try to recreate the issue.

Jordan

[ron minnich]

On Thu, Oct 2, 2008 at 1:58 PM, Myles Watson  wrote:
> I can't get v3 for simnow to work with coreinfo as the payload.  I get no
> VGA even if I enable it, VGA is never mentioned in the boot log, and it ends
> with a triple fault:
>
> cisc-cpu.cpp: CProcessor::GenerateException(): shutdown due to triple fault
>
> Fatal error reached, stopping simulation.  Error message(s) follow:
>
> cisc-cpu.cpp: CProcessor::GenerateException(): shutdown due to triple fault
>
> NOTE:  Simulation cannot be restarted until a reset is asserted.
> Simulation state CAN be inspected with the SimNow debugger.
>
> -- end triple fault --
>
> This error shows up in the boot log for simnow 4.4.4pub:
> k8_domain_scan_bus
> pci_scan_bus start bus 0x0000ce2c, bus->dev 0x0000cbe0
> ERROR: pci_scan_bus called with incorrect bus->dev->path.type, path is
> PCI_DOMAIN: 0000
> PCI: pci_scan_bus for bus 00
> pci_scan_bus: old_devices 0x0000cee0, dev for this bus 0x0000cbe0 (domain_0)
> PCI: scan devfn 0xc0 to 0xff

I'll try it again tonight.
> It also shows up now in QEMU (it didn't use to.)
> pci_domain_scan_bus: calling pci_scan_bus
> pci_scan_bus start bus 0x0000ac0c, bus->dev 0x0000a9c0
> ERROR: pci_scan_bus called with incorrect bus->dev->path.type, path is
> PCI_DOMAIN: 0000
> PCI: pci_scan_bus for bus 00
>
> This "Not a multi function device" message is new to QEMU too.
> PCI: 00:00.0 [PCI: 8086:1237] enabled
> PCI: pci_scan_bus pci_probe_dev returns dev 0x0000b918(dynamic PCI: 00:00.0)
> Not a multi function device, or the device is not present. Skip to next

it's just noise.

I am glad to see you looking at simnow. Keep me posted and I will do
what I can to help. We need more testers (we only have one :-)

ron

[Carl-Daniel Hailfinger]

On 02.10.2008 22:58, Myles Watson wrote:
> I can't get v3 for simnow to work with coreinfo as the payload.  I get no
> VGA even if I enable it, VGA is never mentioned in the boot log, and it ends
> with a triple fault:
>
> cisc-cpu.cpp: CProcessor::GenerateException(): shutdown due to triple fault
>
> Fatal error reached, stopping simulation.  Error message(s) follow:
>
> cisc-cpu.cpp: CProcessor::GenerateException(): shutdown due to triple fault
>
> NOTE:  Simulation cannot be restarted until a reset is asserted.
> Simulation state CAN be inspected with the SimNow debugger.
>
> -- end triple fault --
>
> This error shows up in the boot log for simnow 4.4.4pub:
> k8_domain_scan_bus
> pci_scan_bus start bus 0x0000ce2c, bus->dev 0x0000cbe0
> ERROR: pci_scan_bus called with incorrect bus->dev->path.type, path is
> PCI_DOMAIN: 0000
> PCI: pci_scan_bus for bus 00
> pci_scan_bus: old_devices 0x0000cee0, dev for this bus 0x0000cbe0 (domain_0)
> PCI: scan devfn 0xc0 to 0xff
>
> It also shows up now in QEMU (it didn't use to.)
> pci_domain_scan_bus: calling pci_scan_bus
> pci_scan_bus start bus 0x0000ac0c, bus->dev 0x0000a9c0
> ERROR: pci_scan_bus called with incorrect bus->dev->path.type, path is
> PCI_DOMAIN: 0000

Ah yes, the old bug. Very old bug. I added the error message so people
don't wonder why none of the devices in the prebuilt device tree are found.
IIRC Ron wanted to fix that with his device tree rewrite that was
committed some time ago. Oh well.
> PCI: pci_scan_bus for bus 00
>
> This "Not a multi function device" message is new to QEMU too.
> PCI: 00:00.0 [PCI: 8086:1237] enabled
> PCI: pci_scan_bus pci_probe_dev returns dev 0x0000b918(dynamic PCI: 00:00.0)
> Not a multi function device, or the device is not present. Skip to next
> device.

That message should be _INFO. It simply tells you why it skips some
devfn in the scan.
> PCI: devfn 0x8
> pci_scan_get_dev: list is 0x0008fee0, *list is 0x0000acc0
>
> Has anyone gotten v3 + coreinfo to work on simnow 4.4.4pub?

My 64bit machines (needed for Simnow) are down right now and back when
they were working there was no working Simnow target.

Regards,
Carl-Daniel