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The problem goes away if I rebuild bonmin, it's needed since some defines are changing the class size.</div>
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j<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>De :</b> Pierre Gruet <pgt@debian.org><br>
<b>Envoyé :</b> dimanche 9 juillet 2023 15:47<br>
<b>À :</b> Debian Bug Tracking System <submit@bugs.debian.org><br>
<b>Objet :</b> Bug#1040694: Segfault in CbcModel::initialSolve</font>
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<div class="PlainText">Source: coinor-cbc<br>
Version: 2.10.10+ds1-1<br>
Severity: important<br>
X-Debbugs-Cc: schueller@phimeca.com<br>
<br>
Dear Maintainer,<br>
<br>
Starting from version 2.10.10+ds1-1 (2.10.8+ds1-1 was OK), one of the<br>
build-time tests of openturns started to fail: t_Bonmin_std. Running it with<br>
gdb I get:<br>
<br>
------------------------------->8--------------------------------<br>
<br>
(gdb) run<br>
Starting program: /build/openturns-eQ5lBV/openturns-1.20/builddir/lib/test/t_Bonmin_std<br>
[Thread debugging using libthread_db enabled]<br>
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".<br>
class=Bonmin<br>
algorithm=B-BB<br>
options=<br>
mu_oracle=loqo<br>
<br>
<br>
Program received signal SIGSEGV, Segmentation fault.<br>
0x00007ffff1ce1347 in CbcModel::initialSolve() () from /usr/lib/x86_64-linux-gnu/libCbc.so.3<br>
(gdb) bt<br>
#0 0x00007ffff1ce1347 in CbcModel::initialSolve() () from /usr/lib/x86_64-linux-gnu/libCbc.so.3<br>
#1 0x00007ffff48a2705 in Bonmin::Bab::branchAndBound(Bonmin::BabSetupBase&) () from /usr/lib/x86_64-linux-gnu/libbonmin.so.4<br>
#2 0x00007ffff755b48e in OT::Bonmin::run (this=this@entry=0x7fffffffe440) at ./lib/src/Base/Optim/Bonmin.cxx:174<br>
#3 0x000055555555f285 in main () at ./lib/test/t_Bonmin_std.cxx:131<br>
<br>
------------------------------->8-------------------------------- <br>
<br>
which indicates a problem in coinor-cbc.<br>
The above backtrace is somewhat reminiscent of the one of the issue<br>
<a href="https://github.com/coin-or/Cbc/issues/591">https://github.com/coin-or/Cbc/issues/591</a><br>
which has been fixed in upstream version 2.10.10. I suspect a close issue is<br>
showing up here.<br>
<br>
Thanks a lot for your help,<br>
<br>
-- <br>
Pierre<br>
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