[Crash-utility] user defined symbol

[Dave Anderson]

Ming Zhang wrote:
> Hi All
> 
> I wonder if it possible to have this feature - user defined symbol.
> 
> for example, define inode1 = 0x1234
> 
> then in all place has this 0x1234 in bt or rd command, show inode1
> instead of numeric value,
> 
> This should be very helpful when these value pop up in a haystack of
> numeric values...
> 
> Thanks
> 

Why not just pipe the relevant command to grep to pin-point the
locations of the value you're tracking?

I know it's tempting, but creating a crash command/option for
specific kernel-debug cases would soon become overwhelming.
So I'm not particulary excited about this suggestion; maybe
others would be...

BTW, as you requested earler, I've got the "kmem -s <address>"
output changed such that the base address of the object is shown
instead of the <address> argument which may be offset into the
slab object.  With CONFIG_SLUB kernels, that's how it currently
works, although I'm also fixing "kmem -S" and "kmem -s address"
failures to handle some 2.6.25 kernel changes to SLUB object
free-list tracking.  And there still appears to be more
SLUB-related churn being proposed on LKML on the horizon.

Dave