[Crash-utility] The problems when running SuSE 12 on VirtualBox

[Dave Anderson]

----- Original Message -----
> On 11/19/2015 07:45 AM, Dave Anderson wrote:
> 
> Hi Dave,
> 
> > ----- Original Message -----
> <snip>
> > 
> >> (2) Execute "crash -d8" on physical machine will cause crash utility core
> >> dump.
> > 
> > I can reproduce this, so I'll look into it.  It's related to the /dev/mem "test"
> > to determine whether the kernel was configured with CONFIG_STRICT_DEVMEM, where
> > it tries to read from pfn 257 (just above the CONFIG_STRICT_DEVMEM limit), but
> > gets into an infinite loop when used in conjunction with -d.
> > 
> > Anyway, just continue to use /proc/kcore and you should be fine.
> 
> I assume switch_to_proc_kcore() isn't Xen specific but since it will
> happen on all our dom0's would you care if I continued with it?

Right.

And as far as fixing this, if devmem_is_restricted() is patched to return
FALSE if it's recursively called, that seems to work for me.  Or were
you thinking of hacking PRINT_ERROR_MESSAGE() up even further?

Dave