[Crash-utility] snap crash plugin on RHEL 4

[Dave Anderson]

----- "Adrien Kunysz" <adk at redhat.com> wrote:

> > When the vmcore is created by "snap", it first looks at /proc/iomem for
> > the regions of physical memory that are dumpable.  Therefore it rejected
> > any physical address above f7feffff, which is the problem at hand. 
> 
> 
> f7ff0000-f7ffefff : ACPI Tables
> f7fff000-f7ffffff : ACPI Non-volatile Storage
> 
> > Just for sanity's sake, what does "cat /proc/iomem" show?
> 
> 00000000-00099bff : System RAMcat 
> 00099c00-0009ffff : reserved
> 000a0000-000bffff : Video RAM area
> 000c0000-000c9fff : Video ROM
> 000ca000-000cafff : Adapter ROM
> 000cb000-000cbfff : Adapter ROM
> 000cc000-000ccfff : Adapter ROM
> 000cd000-000cdfff : Adapter ROM
> 000ce000-000cefff : Adapter ROM
> 000cf000-000d4bff : Adapter ROM
> 000f0000-000fffff : System ROM
> 00100000-f7feffff : System RAM
>    00100000-00318afa : Kernel code
>    00318afb-00469ec0 : Kernel data
> f7ff0000-f7ffefff : ACPI Tables
> f7fff000-f7ffffff : ACPI Non-volatile Storage
> fbf00000-fbffffff : PCI Bus #01
>    fbf80000-fbf9ffff : 0000:01:02.1
>      fbf80000-fbf9ffff : e1000
>    fbfa0000-fbfbffff : 0000:01:02.0
>      fbfa0000-fbfbffff : e1000
>    fbfc0000-fbfdffff : 0000:01:01.1
>      fbfc0000-fbfdffff : e1000
>    fbfe0000-fbffffff : 0000:01:01.0
>      fbfe0000-fbffffff : e1000
> fc000000-fc4fffff : PCI Bus #02
>    fc4e0000-fc4effff : 0000:02:03.0
>    fc4fc000-fc4fffff : 0000:02:03.0
> fc500000-fe5fffff : PCI Bus #03
>    fd000000-fdffffff : 0000:03:03.0
>    fe5fd000-fe5fdfff : 0000:03:00.1
>      fe5fd000-fe5fdfff : ohci_hcd
>    fe5fe000-fe5fefff : 0000:03:00.0
>      fe5fe000-fe5fefff : ohci_hcd
>    fe5ff000-fe5fffff : 0000:03:03.0
> fe6fe000-fe6fefff : 0000:00:02.1
> fe6ff000-fe6fffff : 0000:00:01.1
> fe700000-fe7fffff : PCI Bus #01
> fe800000-fe8fffff : PCI Bus #02
> feafe000-feafefff : 0000:04:02.1
> feaff000-feafffff : 0000:04:01.1
> ff700000-ffffffff : reserved

Apparently I don't understand /proc/iomem -- I was under the
assumption that it would show all "System RAM" segments.  Is
that not the case?

Dave