Re: [uml-devel] 2.6.14-rc1 x86 on 2.6.13.1 amd64 host: guest segfaults

[Jeff Dike <jdike@addtoit.com>]

On Thu, Sep 15, 2005 at 06:05:51PM +0100, Antoine Martin wrote:
> I tried mode=skas0 but it seems to always default to TT.
> Or has this not been merged in mainline yet?

It's in mainline.  What's the guest?

> **
> And here is a amd64 guest:
> (This trace was much much longer)

Did this one come up in skas0 or tt mode?

> Another weirdness, this command line works:
> # ./kernel64 root=/dev/ubda mem=256M ubd0=./root_fs64
> eth0=tuntap,tap0,FE:F0:00:00:00:01,10.0.0.254 eth1=pcap,eth0
> console0=fd:0,fd:1 umid=1

What's with the console* business?  The switch is "con".

> But this one does not:
> # ./kernel64 root=/dev/ubda mem=256M ubd0=./root_fs64
> eth0=tuntap,tap0,FE:F0:00:00:00:01,10.0.0.254 eth1=pcap,eth0
> console0=fd:0,fd:1 console=pty umid=1 gentoo=nodevfs nodevfs selinux=1
> enforcing=0
> With this one it crashes after checking for PROT_EXEC.
> Is this to do with command line size limitations?

Maybe, but it probably shouldn't crash.

> write(3, "1126803520:  *** terminating.\n", 30) = 30

This bit seems relevent - were there any syscall failures above that?

				Jeff


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