[Crash-utility] Crash tool support for 3level-64k and 4level-4K page tables on ARM64

[Dave Anderson]

----- Original Message -----
> Hi David,
> 
> I recently tested makedumpfile on ARM64 with 3level-4K, 3level-64K and
> 4level-4K page tables.
> 
> I tried to analyze the dumpfile with the crash tool.
> I noticed that with 3level-64K and 4level-4K I got the following error
> when I tried to run "kmem -f" :
> 
> kmem: invalid kernel virtual address: ffff************  type: "first
> list entry"
> 
> I did not see the above error with 3level-4K. Also, on all three
> combinations, other commands (bt,dmesg etc) ran fine.
> 
> Are there any plans to add support to the crash tool for these
> additional kernel configurations?

There is only support for the original 3level-4K prototype RHEL7 kernel, and the 
currently released 2level-64K RHEL7 kernel.  I would certainly accept patches to
support other configurations.

Dave