2169186 - SAP IQ glibc detected error iqsrv15: double free or corruption (fasttop)

Symptom

SAP IQ crashes with no errors in the iqmsg or srvlog, just the following message and backtrace in the stderr log:

*** glibc detected *** /sybase/IQ-15_4/bin64/iqsrv15: double free or corruption (fasttop): 0x00002ad0340b98d0 ***
======= Backtrace: =========
/lib64/libc.so.6[0x3b8367230f]
/lib64/libc.so.6(cfree+0x4b)[0x3b8367276b]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a0e4749]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a0e47ea]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a0eb043]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a1f5cb0]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a09682e]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a096916]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a1f3cad]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a099da9]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a1f3eee]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a1f8235]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a1f2de5]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a21fa26]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a1f3516]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a634e7d]
/sybase/IQ-15_4/lib64/libiqserv15_r.so[0x2b8b0a220607]
/lib64/libpthread.so.0[0x3b8420673d]
/lib64/libc.so.6(clone+0x6d)[0x3b836d3d1d]

======= Memory map: ========

(...)

Environment

SAP IQ 15.4.0.3027 ESD 3

Enterprise Linux64 - x86_64

Product

SAP Sybase IQ 15.4

Keywords

IQ, 15.4, ESD3, ESD#3, ESD 3, glibc, error, double, free, corruption, fasttop, TDS, iqsrv15, clone, backtrace, crash. , KBA , BC-SYB-IQ , Sybase IQ , Problem

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