Improve build-id checking when the task we're interested in isn't 'current'. git commit causing problems on ARM and IA64

[William Cohen]

On 04/02/2012 03:30 PM, David Smith wrote:
> ../install/bin/stap  -k ../systemtap/testsuite/systemtap.base/add.stp 

Hi David,

Thanks for taking a look at this problem.

The git checkin fixes the problem for ia64.

The arm machine is using a kernel from the linus torvald's git repo. This particular kernel doesn't have utrace support in it, so it doesn't have CONFIG_UTRACE set.  Thus, things still fail in the same way on the ARM machine.

Does this code work with stock x86_64 kernel?  I am wondering why this problem wasn't seen on the x86 machine. Does the x86 not need to do the explicit flushes unlike the ia64 and ARM? 

-Will