[Bug libc/16958] New: Missing membar in sparc niagara2 memcpy causes data corruption.

["davem at davemloft dot net" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=16958

            Bug ID: 16958
           Summary: Missing membar in sparc niagara2 memcpy causes data
                    corruption.
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: davem at davemloft dot net
                CC: drepper.fsp at gmail dot com

Due to a missing memory barrier instruction, stores issued before invocation of
memcpy can overlap with the block stores done in the Niagara2 optimized memcpy
code.

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