[Bug tapsets/3423] New: src/testsuite/systemtap.base/probefunc.exp fails on IA64

["thang dot p dot nguyen at intel dot com" <sourceware-bugzilla at sourceware dot org>]

The probefunc.exp fails on printing the probe name for a statement probe. 

The probe below is supposed to print the probe name ?scheduler_tick? on IA64
(2.6.17-1.2519.4.21.el5, ia64 GNU/Linux), but an empty string is printed 
instead.

probe kernel.statement(0xa000000100068e40){
   printf("%s\n", probefunc())
}

There seems to be a bug in probefunc() in tapset/context.stp.  The comparison 
(REG_IP(CONTEXT->regs) >= PAGE_OFFSET) is not valid in this particular case 
since the values below were observed:

REG_IP(CONTEXT->regs)  = 0xa000000100068e40   
PAGE_OFFSET=0xe000000000000000

-- 
           Summary: src/testsuite/systemtap.base/probefunc.exp fails on IA64
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tapsets
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: thang dot p dot nguyen at intel dot com
                CC: bibo dot mao at intel dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=3423

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