bryancall edited a comment on issue #7094:
URL: https://github.com/apache/trafficserver/issues/7094#issuecomment-670778188
We also saw this core during the configuration reload:
```
#0 0x00000000005b92b8 in ink_atomic_increment<int, int> (count=-1,
mem=0x2af90000006b)
at
/sd/workspace/src/git.vzbuilders.com/Edge/build/_build/build_release_posix-x86_64_gcc_8/trafficserver9/build/../../../../_vcs/trafficserver9/include/tscore/Ptr.h:73
73
/sd/workspace/src/git.vzbuilders.com/Edge/build/_build/build_release_posix-x86_64_gcc_8/trafficserver9/build/../../../../_vcs/trafficserver9/include/tscore/Ptr.h:
No such file or directory.
Missing separate debuginfos, use: debuginfo-install
oath-trafficserver9.0-9.0.0.49-1.el7.x86_64
(gdb) bt full
#0 0x00000000005b92b8 in ink_atomic_increment<int, int> (count=-1,
mem=0x2af90000006b)
at
/sd/workspace/src/git.vzbuilders.com/Edge/build/_build/build_release_posix-x86_64_gcc_8/trafficserver9/build/../../../../_vcs/trafficserver9/include/tscore/Ptr.h:73
No locals.
#1 refcount_dec (this=0x2af900000063)
at
/sd/workspace/src/git.vzbuilders.com/Edge/build/_build/build_release_posix-x86_64_gcc_8/trafficserver9/build/../../../../_vcs/trafficserver9/include/tscore/Ptr.h:73
No locals.
#2 PluginDso::decInstanceCount (this=0x2af900000003) at
../../../../../../../_vcs/trafficserver9/proxy/http/remap/PluginDso.cc:277
__FUNCTION__ = "decInstanceCount"
#3 0x00000000005bbbfd in RemapPluginInst::done (this=0x2af9e4f901a0) at
../../../../../../../_vcs/trafficserver9/proxy/http/remap/PluginFactory.cc:65
No locals.
#4 0x00000000005bbf20 in operator() (__closure=<optimized out>,
pluginInst=...) at
../../../../../../../_vcs/trafficserver9/proxy/http/remap/PluginFactory.cc:274
No locals.
#5 operator() (this=<optimized out>, v=<optimized out>)
at
/sd/workspace/src/git.vzbuilders.com/Edge/build/_build/build_release_posix-x86_64_gcc_8/trafficserver9/build/../../../../_vcs/trafficserver9/include/tscpp/util/IntrusiveDList.h:865
No locals.
#6 Intrusive_DList_Apply<ts::IntrusiveLinkage<RemapPluginInst>,
ts::detail::Intrusive_DList_Apply(ts::IntrusiveDList<L>&, F&&) [with L =
ts::IntrusiveLinkage<RemapPluginInst>; F =
PluginFactory::deactivate()::<lambda(RemapPluginInst&)>&]::<lambda(ts::IntrusiveDList<ts::IntrusiveLinkage<RemapPluginInst>
>::value_type*)>&> (f=..., list=...)
at
/sd/workspace/src/git.vzbuilders.com/Edge/build/_build/build_release_posix-x86_64_gcc_8/trafficserver9/build/../../../../_vcs/trafficserver9/include/tscpp/util/IntrusiveDList.h:876
spot = {<ts::IntrusiveDList<ts::IntrusiveLinkage<RemapPluginInst,
&RemapPluginInst::_next, &RemapPluginInst::_prev> >::const_iterator> = {_list =
<optimized out>,
_v = 0x2af9e4f90220}, <No data fields>}
#7 apply<ts::detail::Intrusive_DList_Apply(ts::IntrusiveDList<L>&, F&&)
[with L = ts::IntrusiveLinkage<RemapPluginInst>; F =
PluginFactory::deactivate()::<lambda(RemapPluginInst&)>&]::<lambda(ts::IntrusiveDList<ts::IntrusiveLinkage<RemapPluginInst>
>::value_type*)> > (f=<optimized out>, this=0x2af9f9b080e0)
at
/sd/workspace/src/git.vzbuilders.com/Edge/build/_build/build_release_posix-x86_64_gcc_8/trafficserver9/build/../../../../_vcs/trafficserver9/include/tscpp/util/IntrusiveDList.h:887
No locals.
#8 Intrusive_DList_Apply<ts::IntrusiveLinkage<RemapPluginInst>,
PluginFactory::deactivate()::<lambda(RemapPluginInst&)>&> (f=..., list=...)
at
/sd/workspace/src/git.vzbuilders.com/Edge/build/_build/build_release_posix-x86_64_gcc_8/trafficserver9/build/../../../../_vcs/trafficserver9/include/tscpp/util/IntrusiveDList.h:865
No locals.
#9 apply<PluginFactory::deactivate()::<lambda(RemapPluginInst&)> >
(f=<optimized out>, this=0x2af9f9b080e0)
at
/sd/workspace/src/git.vzbuilders.com/Edge/build/_build/build_release_posix-x86_64_gcc_8/trafficserver9/build/../../../../_vcs/trafficserver9/include/tscpp/util/IntrusiveDList.h:887
No locals.
#10 PluginFactory::deactivate (this=this@entry=0x2af9f9b080b8) at
../../../../../../../_vcs/trafficserver9/proxy/http/remap/PluginFactory.cc:274
__FUNCTION__ = "deactivate"
#11 0x00000000005c384a in UrlRewrite::~UrlRewrite (this=0x2af9f9b08000,
__in_chrg=<optimized out>)
at
../../../../../../../_vcs/trafficserver9/proxy/http/remap/UrlRewrite.cc:116
No locals.
#12 0x00000000005c3929 in UrlRewrite::~UrlRewrite (this=0x2af9f9b08000,
__in_chrg=<optimized out>)
at
../../../../../../../_vcs/trafficserver9/proxy/http/remap/UrlRewrite.cc:103
No locals.
#13 0x00000000006de659 in reloadUrlRewrite() () at
../../../../../_vcs/trafficserver9/proxy/ReverseProxy.cc:163
msg_format = 0x7a7d33 "%s failed to load"
newTable = 0x2af9f9b08000
oldTable = <optimized out>
__FUNCTION__ = "reloadUrlRewrite"
(gdb) frame 3
(gdb) p _instList
$4 = {_head = 0x2af9e4f901c0, _tail = 0x2af9e4f90200, _count = 10}
(gdb) p _instList->_head->_next->_next->_next
$13 = (RemapPluginInst::self_type *) 0x2af9e4f90220
(gdb) p _instList->_head->_next->_next->_next->_next
$14 = (RemapPluginInst::self_type *) 0x0
(gdb) p
_instList->_tail->_prev->_prev->_prev->_prev->_prev->_prev->_prev->_prev->_prev->_prev
$25 = (RemapPluginInst::self_type *) 0x42f44
```
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