Fixes are available
APAR status
Closed as program error.
Error description
Currently, "All compiler command invocations except f77, fort77, xlf, xlf_r and xlf_r7 use -qnosave by default." With -qsmp=omp or the _r invocation, -qnosave is required. If a user forgot to specify -qnosave with -qsmp=omp or _r invocation compilations, the multithreaded program might malfunction at runtime. It's not obvious to debug such failures.
Local fix
Specify -qnosave as required.
Problem summary
PROBLEM DESCRIPTION: XL Fortran enables the -qsave and -qxlf77=persistent options by default in the xlf_r invocation. These options store some entities in static storage, which is not thread-safe. The compiler reference recommends against using this invocation for threaded programs without explicitly specifying -qnosave / -qxlf77=nopersistent. The compiler does not warn the user directly, however. USERS AFFECTED: Users of the xlf_r and related invocations
Problem conclusion
XL Fortran xlf_r and bgxlf_r invocations have been changed to enable -qnosave or -qxlf77=nopersistent by default. The change ensures thread safety for these commands. If your threaded program requires -qsave or -qxlf77=persistent, specify these options explicitly. Refer to this Technote for more information on the change and possible side effect: http://www-01.ibm.com/support/docview.wss?uid=swg21656184
Temporary fix
Comments
APAR Information
APAR number
LI77701
Reported component name
XL FORTRAN LINU
Reported component ID
5725C7500
Reported release
E10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-11-22
Closed date
2014-02-26
Last modified date
2014-02-26
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
XL FORTRAN LINU
Fixed component ID
5725C7500
Applicable component levels
RE10 PSY
UP
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Document Information
Modified date:
14 October 2021