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Offending Buffer Error With SHMQ Option (Doc ID 2706203.1)

Last updated on SEPTEMBER 02, 2020

Applies to:

Oracle Tuxedo - Version 12.2.2 and later
Information in this document applies to any platform.


When enabling SHMQ option (XPP) , the STRING buffer can not send to another domain.

tpcall() fails with TPESYSTEM and following error occurs on remote domain

143129.<host_name>!GWTDOMAIN.<pid>.<tid>: LIBGWT_CAT:1129: INFO: Connection established with domain (domainid=<TDOM1>)
143130.<host_name>!GWTDOMAIN.<pid>.<tid>: LIBGWT_CAT:1069: ERROR: Decoding of header failed
143130.<host_name>!GWTDOMAIN.<pid>.<tid>: INFO: Remote AP TDOM1
143130.<host_name>!GWTDOMAIN.<pid>.<tid>: INFO: Offending buffer: 0x7fd97c005908, info 0x24636e0, channel 0x7fd9780035d0
143130.<host_name>!GWTDOMAIN.<pid>.<tid>: LIBGWT_CAT:1288: ERROR: Bad message from TDOM1. Closing file descriptor
143130.<host_name>!GWTDOMAIN.<pid>.<tid>: LIBGWT_CAT:1130: INFO: Disconnected from domain (domainid=<TDOM1>)

 or GWTDOMAIN crash at tmfmsg_copy ()

Program terminated with signal 11, Segmentation fault.
#0 0x0000003dec489a6b in memcpy () from /lib64/
Missing separate debuginfos, use: debuginfo-install
glibc-2.12-1.132.el6_5.4.x86_64 libgcc-4.4.7-4.el6.x86_64
(gdb) where
#0 0x0000003dec489a6b in memcpy () from /lib64/
#1 0x00007fd9a0527561 in _tmfmsg_copy ()
from /tuxedo12.
#2 0x00007fd9a0527b1c in _tmfmsg_gpnet_alloc ()
from /tuxedo12.
#3 0x00007fd9a0a21d9c in _e_net_recv ()
from /tuxedo12.
#4 0x00007fd9a0a2392b in _e_net_handle_event ()
from /tuxedo12.
#5 0x00007fd9a0eb0cb6 in thrgw_nwrecv_loop ()
from /tuxedo12.
#6 0x0000003dec8079d1 in start_thread () from /lib64/
#7 0x0000003dec4e886d in clone () from /lib64/



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