PROC MEANS/SUMMARY/TABULATE/REPORT may generate incorrect results in SAS
9.1 and 9.1.2 when threading is used and quantile statistics are
requested using the option, QMETHOD=P2.

Data values stored by one thread may be overwritten by the workspace
utilization code being executed by another thread.

The current circumvention is to use the system option or procedure
option, NOTHREADS.

This problem is fixed in SAS 9.1.3.

A Technical Support hot fix for SAS 9.1 (TS1M0) for this
issue is available at:

http://www.sas.com/techsup/download/hotfix/b9_sbcs_prod_list.html#013076

For customers running SAS with Asian Language Support (DBCS), this
hot fix should be downloaded from:

http://www.sas.com/techsup/download/hotfix/b9_dbcs_prod_list.html#013076


A Technical Support hot fix for SAS 9.1.2 (9.1 TS1M2) for this
issue is available at:

http://www.sas.com/techsup/download/hotfix/c9_sbcs_prod_list.html#013076

For customers running SAS with Asian Language Support (DBCS), this
hot fix should be downloaded from:

http://www.sas.com/techsup/download/hotfix/c9_dbcs_prod_list.html#013076

Operating System and Release Information

A fix for SAS 9.1 (9.1 TS1M0) for this issue is available at:

A fix for SAS 9.1 (9.1 TS1M0) with Asian Language Support (DBCS) for this issue is available at:

A fix for SAS 9.1.2 (9.1 TS1M2) for this issue is available at:

A fix for SAS 9.1.2 (9.1 TS1M2) with Asian Language Support (DBCS) for this issue is available at: