https://bugs.kde.org/show_bug.cgi?id=400878

            Bug ID: 400878
           Summary: no support for bpf(2) syscall; overreaction to missing
                    syscalls
           Product: valgrind
           Version: 3.13.0
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: vex
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

Recent linux tools use the bpf(2) syscall to do bpfy work on linux.  Valgrind
should accept that.

More generally, perhaps valgrind ought to have a mode, like --lax-doors on
solaris, that tolerates unhandled syscalls.  (A false or missing error later on
is better than complete loss of valgrind visibility into a process.)

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