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https://issues.apache.org/jira/browse/HADOOP-9707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13709816#comment-13709816
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Hudson commented on HADOOP-9707:
--------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #1489 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1489/])
HADOOP-9707. Fix register lists for crc32c inline assembly. Contributed by Todd
Lipcon. (kihwal:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1503390)
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/util/bulk_crc32.c
> Fix register lists for crc32c inline assembly
> ---------------------------------------------
>
> Key: HADOOP-9707
> URL: https://issues.apache.org/jira/browse/HADOOP-9707
> Project: Hadoop Common
> Issue Type: Bug
> Components: util
> Affects Versions: 3.0.0, 2.1.0-beta
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
> Fix For: 3.0.0, 2.1.0-beta
>
> Attachments: hadoop-9707.txt
>
>
> The inline assembly used for the crc32 instructions has an incorrect clobber
> list: the computed CRC values are "in-out" variables and thus need to use the
> "matching constraint" syntax in the clobber list.
> This doesn't seem to cause a problem now in Hadoop, but may break in a
> different compiler version which allocates registers differently, or may
> break when the same code is used in another context.
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