On Friday 29 July 2005 5:17 pm, Andrew Morton wrote:
> Khalid Aziz <[email protected]> wrote:
> >
> > Serial console is broken on ia64 on an HP rx2600 machine on
> > 2.6.13-rc3-mm3. When kernel is booted up with "console=ttyS,...", no
> > output ever appears on the console and system is hung. So I booted the
> > kernel with "console=uart,mmio,0xff5e0000" to enable early console and
> > here is how far the kernel got before hanging:
> > Serial: 8250/16550 driver $Revision: 1.90 $ 6 ports, IRQ sharing enabled
> > ...
> > No ttyS device at MMIO 0xff5e0000 for console
> >
> > Serial driver failed to find any serial ports. I am using defconfig. A
> > 2.6.13-rc3 kernel (no mm3 patch) compiled with defconfig boots up fine
> > and finds all serial ports.
Your rc3-mm3 boot is also missing this:
IOC: zx1 2.2 HPA 0xfed01000 IOVA space 1024Mb at 0x40000000
So something's busted with ACPI. Both the IOC and the rx2600 serial
ports should be discovered via ACPI.
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