[Bug uprobes/10324] New: x86-64 uprobes gives up on 0xf0 prefix (lock)

[fche at redhat dot com]

When probing multithreading libraries like libpthread, uprobes
rejects instructions like this for probing.

   f0 64 0f b1 0c 25 c8    lock cmpxchg %ecx,%fs:0xc8

Jun 23 21:19:25 grid-wn353 kernel: Can't place uprobe at pid 21629 vaddr
0x2b8f90f09691: instruction type cannot be probed

-- 
           Summary: x86-64 uprobes gives up on 0xf0 prefix (lock)
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: uprobes
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: fche at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=10324

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