Hi
I've compiled 2.4.14 on a MediaGX running at 133 MHz that I use for a
gateway, and am having some difficulty getting it to boot. The last three
lines of output are as follows:
Working around Cyrix MediaGX virtual DMA bugs.
CPU: Cyrix MediaGX 3x Core/Bus Clock
Checking 'hlt' instruction... OK.
At this point it locks hard and doesn't respond to Alt-SysRq or Ctrl-Alt-Del.
2.4.10 (the only other 2.4 kernel I have handy) doesn't work either, failing
at the same point, although 2.2.19 does boot and run normally.
I'm not on LKML, so please CC me if any further information is required or to
test any patches.
Adam
> I've compiled 2.4.14 on a MediaGX running at 133 MHz that I use for a
> gateway, and am having some difficulty getting it to boot. The last three
> lines of output are as follows:
What processor did you compile for.
> Working around Cyrix MediaGX virtual DMA bugs.
> CPU: Cyrix MediaGX 3x Core/Bus Clock
> Checking 'hlt' instruction... OK.
2.4.12-ac was working on my 233Mhz MediaGX. I suspect 2.4.14 does too. I'll
give it a test tho
On Wed, 14 Nov 2001 07:29, Alan Cox wrote:
> > I've compiled 2.4.14 on a MediaGX running at 133 MHz that I use for a
> > gateway, and am having some difficulty getting it to boot. The last three
> > lines of output are as follows:
>
> What processor did you compile for.
Compiled for 486. I remember reading that 586 optimisations (used to?) break
the kernel on MediaGXs.
>
> > Working around Cyrix MediaGX virtual DMA bugs.
> > CPU: Cyrix MediaGX 3x Core/Bus Clock
> > Checking 'hlt' instruction... OK.
>
> 2.4.12-ac was working on my 233Mhz MediaGX. I suspect 2.4.14 does too. I'll
> give it a test tho
Thanks for the help.
Adam
> > > Working around Cyrix MediaGX virtual DMA bugs.
> > > CPU: Cyrix MediaGX 3x Core/Bus Clock
> > > Checking 'hlt' instruction... OK.
> >
> > 2.4.12-ac was working on my 233Mhz MediaGX. I suspect 2.4.14 does too. I'll
> > give it a test tho
>
> Thanks for the help.
Ok on my box it boots fine. As an experiment can you build a kerne with no
PCI support (Im not saying it'll be useful production wise but it will tell
me if its a PCI issue)
On Wed, 14 Nov 2001 19:17, Alan Cox wrote:
> Ok on my box it boots fine. As an experiment can you build a kerne with no
> PCI support (Im not saying it'll be useful production wise but it will tell
> me if its a PCI issue)
And, interestingly enough, it does boot with PCI switched off.
Given that it's a somewhat unusual motherboard, I'm pretty willing to just
put an ISA network card in there and write it off as flaky hardware, but it's
odd that it boots under 2.2 with PCI support on.
Adam
In article <[email protected]> you write:
>On Wed, 14 Nov 2001 19:17, Alan Cox wrote:
>> Ok on my box it boots fine. As an experiment can you build a kerne with no
>> PCI support (Im not saying it'll be useful production wise but it will tell
>> me if its a PCI issue)
>
>And, interestingly enough, it does boot with PCI switched off.
>
>Given that it's a somewhat unusual motherboard, I'm pretty willing to just
>put an ISA network card in there and write it off as flaky hardware, but it's
>odd that it boots under 2.2 with PCI support on.
I have had some problem with the PCI direct probe on a MediaGX CPU,
when the probe looked at the CX5530 companion chip the box would
reboot. Could you try to only use the PCI BIOS method instead?
PCI support (CONFIG_PCI) [N/y/?] (NEW) y
PCI access mode (BIOS, Direct, Any) [Any] (NEW) BIOS
defined CONFIG_PCI_GOBIOS
/Christer
--
"Just how much can I get away with and still go to heaven?"
Adam Harvey wrote:
>
> On Wed, 14 Nov 2001 19:17, Alan Cox wrote:
> > Ok on my box it boots fine. As an experiment can you build a kerne with no
> > PCI support (Im not saying it'll be useful production wise but it will tell
> > me if its a PCI issue)
>
> And, interestingly enough, it does boot with PCI switched off.
>
> Given that it's a somewhat unusual motherboard, I'm pretty willing to just
> put an ISA network card in there and write it off as flaky hardware, but it's
> odd that it boots under 2.2 with PCI support on.
>
What kind of motherboard and peripherals are you using?
AKAIK the mediagx only supports one external pci busmaster and only
on a specific "device".
We are using mediaGXm on ETX and had problems with the wiring of the
TVIA CyberPro5050 (combined video+audio controller, audio as busmaster)
Then there are also tweaks in the PCI IDE configuration for mediaGX.
Did you enable that?
On Thu, 15 Nov 2001 17:19, Peter W?chtler wrote:
> What kind of motherboard and peripherals are you using?
> AKAIK the mediagx only supports one external pci busmaster and only
> on a specific "device".
I don't know the make of the motherboard without actually pulling the box
apart. The system was designed and used in hotels for Internet access in
rooms to start with... I picked it up after they were replaced about a year
ago.
It's unusual, because it has a PCI chipset, yet only has a couple of ISA
slots. I've been enabling PCI mainly out of habit and in case anything on the
motherboard was using the bus (apparently not), but I wouldn't be surprised
if the PCI chipset is basically broken, since it wasn't really needed.
>
> We are using mediaGXm on ETX and had problems with the wiring of the
> TVIA CyberPro5050 (combined video+audio controller, audio as busmaster)
Could be applicable, given that video and audio are handled on-board. I might
have to open her up tomorrow and have a poke around.
>
> Then there are also tweaks in the PCI IDE configuration for mediaGX.
> Did you enable that?
I've had them on and off, they don't affect the booting problem.
I'll build a kernel using the BIOS access mode (as suggested by Alan)
tomorrow and see if that clears it up.
Adam