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* [Bug libc/28912] New: RDPID support incorrectly reported on x86
@ 2022-02-21  8:31 fweimer at redhat dot com
  0 siblings, 0 replies; only message in thread
From: fweimer at redhat dot com @ 2022-02-21  8:31 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=28912

            Bug ID: 28912
           Summary: RDPID support incorrectly reported on x86
           Product: glibc
           Version: 2.36
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: fweimer at redhat dot com
                CC: drepper.fsp at gmail dot com
  Target Milestone: ---
            Target: x86_64-*-linux-gnu

RDPID requires that the kernel set ups an MSR before it can be used. Hardware
support by itself is not enough. I think this line

  CPU_FEATURE_SET_ACTIVE (cpu_features, RDPID);

needs to be removed from sysdeps/x86/cpu-features.c.

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2022-02-21  8:31 [Bug libc/28912] New: RDPID support incorrectly reported on x86 fweimer at redhat dot com

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