[Crash-utility] user defined symbol

Ming Zhang blackmagic02881 at gmail.com
Wed Mar 5 22:22:03 UTC 2008


On Wed, 2008-03-05 at 15:57 -0500, Dave Anderson wrote:
> 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...

understood.


> 
> 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.

cool. where i can get this updated code?


> 
> Dave
-- 
Ming Zhang


@#$%^ purging memory... (*!%
http://blackmagic02881.wordpress.com/
http://www.linkedin.com/in/blackmagic02881
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