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Re: Segmentation Fault: Task died at uprobe probepoint


On Mon, 2010-06-14 at 17:43 -0700, Gaurav Dhiman wrote:
> > Looks to me that you are using a pretty recent systemtap with a pretty
> > old elfutils. Is is possible to try building systemtap with a later
> > version of elfutils?
> >
> I have version 0.13a installed on my system. Is that too old? I can
> give it a shot with latter versions.

That is pretty old. Some versions before 0.142 had bugs that could
result in us misplacing probes. But that isn't the issue you are seeing
here, since even if the probe was misplaced it should still not crash
the binary you are inspecting.

If possible, please do try using elfutils-0.142+ (latest is 0.147). Even
though that shouldn't matter in your case.

> > I am not able to see this problem. (I am running on a different kernel)
> >
> 
> Which versions (systemtap and kernel) are you using? I might give them
> a shot as well.

I was also unable to replicate. Using systemtap 1.2 or current git tip.
elfutils 0.147. kernel 2.6.32-33.el6.x86_64 or 2.6.33.5-112.fc13.i686



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