SolidWallOfCode edited a comment on pull request #7731:
URL: https://github.com/apache/trafficserver/pull/7731#issuecomment-824979371
Here is the stack trace if anyone else has seen this
```
#0 0x00007f57e6eec7d5 in raise () from /lib64/libc.so.6
#1 0x00007f57e6ed5895 in abort () from /lib64/libc.so.6
#2 0x000000000047d868 in SignalHandler (sig=11) at
traffic_manager/traffic_manager.cc:974
#3 <signal handler called>
#4 0x00000000004db76b in
std::__detail::_Hash_code_base<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::pair<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const, RecRecord*>, std::__detail::_Select1st,
std::hash<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > >, std::__detail::_Mod_range_hashing,
std::__detail::_Default_ranged_hash, true>::_M_bucket_index (this=0x67ee00
<g_records_ht[abi:cxx11]>, __p=0x32a0f68fe8fce555,
__bkt_count=2357) at /usr/include/c++/10/bits/hashtable_policy.h:1391
#5 0x00000000004db381 in std::_Hashtable<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::pair<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const, RecRecord*>,
std::allocator<std::pair<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const, RecRecord*> >,
std::__detail::_Select1st, std::equal_to<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > >,
std::hash<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > >, std::__detail::_Mod_range_hashing,
std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy,
std::__detail::_Hashtable_traits<true, false, true> >::_M_bucket_index
(this=0x67ee00 <g_records_ht[abi:cxx11]>,
__n=0x32a0f68fe8fce555) at /usr/include/c++/10/bits/hashtable.h:678
#6 0x00000000004dafad in std::_Hashtable<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::pair<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const, RecRecord*>,
std::allocator<std::pair<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const, RecRecord*> >,
std::__detail::_Select1st, std::equal_to<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > >,
std::hash<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > >, std::__detail::_Mod_range_hashing,
std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy,
std::__detail::_Hashtable_traits<true, false, true> >::_M_find_before_node
(this=0x67ee00 <g_records_ht[abi:cxx11]>,
__bkt=1111, __k="proxy.node.config.restart_required.proxy",
__code=13471590608258617002)
at /usr/include/c++/10/bits/hashtable.h:1583
#7 0x00000000004dacaa in std::_Hashtable<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::pair<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const, RecRecord*>,
std::allocator<std::pair<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const, RecRecord*> >,
std::__detail::_Select1st, std::equal_to<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > >,
std::hash<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > >, std::__detail::_Mod_range_hashing,
std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy,
std::__detail::_Hashtable_traits<true, false, true> >::_M_find_node
(this=0x67ee00 <g_records_ht[abi:cxx11]>,
__bkt=1111, __key="proxy.node.config.restart_required.proxy",
__c=13471590608258617002)
at /usr/include/c++/10/bits/hashtable.h:693
#8 0x00000000004dab38 in std::_Hashtable<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> >,
std::pair<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > const, RecRecord*>,
std::allocator<std::pair<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const, RecRecord*> >,
std::__detail::_Select1st, std::equal_to<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > >,
std::hash<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > >, std::__detail::_Mod_range_hashing,
std::__detail::_Default_ranged_hash, std::__detail::_Prime_rehash_policy,
std::__detail::_Hashtable_traits<true, false, true> >::find (this=0x67ee00
<g_records_ht[abi:cxx11]>,
__k="proxy.node.config.restart_required.proxy") at
/usr/include/c++/10/bits/hashtable.h:1454
#9 0x00000000004daa33 in
std::unordered_map<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >, RecRecord*, std::hash<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > >,
std::equal_to<std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> > >,
std::allocator<std::pair<std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const, RecRecord*> > >::find
(this=0x67ee00 <g_records_ht[abi:cxx11]>,
__x="proxy.node.config.restart_required.proxy") at
/usr/include/c++/10/bits/unordered_map.h:920
#10 0x00000000004d95c1 in RecSetRecord (rec_type=RECT_NULL, name=0x505350
"proxy.node.config.restart_required.proxy",
data_type=RECD_INT, data=0x7f57e600dec8, data_raw=0x0,
source=REC_SOURCE_DEFAULT, lock=true) at P_RecCore.cc:372
#11 0x00000000004d9aea in RecSetRecordInt (name=0x505350
"proxy.node.config.restart_required.proxy", rec_int=1,
source=REC_SOURCE_DEFAULT, lock=true) at P_RecCore.cc:467
#12 0x00000000004edca2 in config_update_thr () at RecLocal.cc:94
#13 0x00007f57e7290432 in start_thread () from /lib64/libpthread.so.0
#14 0x00007f57e6fb16d3 in clone () from /lib64/libc.so.6
```
This is a shutdown problem because the stack on another thread is
```
#0 0x00007f57e7452666 in
std::allocator_traits<std::allocator<ts::IntrusivePtr<ts::Errata::Sink>*>
>::deallocate(std::allocator<ts::IntrusivePtr<ts::Errata::Sink>*>&,
ts::IntrusivePtr<ts::Errata::Sink>**, unsigned long)@plt ()
from /home/amc/opt/ats/lib/libtscore.so.10
(gdb) bt
#0 0x00007f57e7452666 in
std::allocator_traits<std::allocator<ts::IntrusivePtr<ts::Errata::Sink>*>
>::deallocate(std::allocator<ts::IntrusivePtr<ts::Errata::Sink>*>&,
ts::IntrusivePtr<ts::Errata::Sink>**, unsigned long)@plt ()
from /home/amc/opt/ats/lib/libtscore.so.10
#1 0x00007f57e748f82e in
std::_Deque_base<ts::IntrusivePtr<ts::Errata::Sink>,
std::allocator<ts::IntrusivePtr<ts::Errata::Sink> > >::_M_deallocate_map
(this=0x7f57e7577cc0 <ts::(anonymous namespace)::Sink_List>, __p=0x1a1b060,
__n=8)
at /usr/include/c++/10/bits/stl_deque.h:580
#2 0x00007f57e748e627 in
std::_Deque_base<ts::IntrusivePtr<ts::Errata::Sink>,
std::allocator<ts::IntrusivePtr<ts::Errata::Sink> > >::~_Deque_base
(this=0x7f57e7577cc0 <ts::(anonymous namespace)::Sink_List>,
__in_chrg=<optimized out>)
at /usr/include/c++/10/bits/stl_deque.h:600
#3 0x00007f57e74951c5 in std::deque<ts::IntrusivePtr<ts::Errata::Sink>,
std::allocator<ts::IntrusivePtr<ts::Errata::Sink> > >::~deque
(this=0x7f57e7577cc0 <ts::(anonymous namespace)::Sink_List>,
__in_chrg=<optimized out>) at /usr/include/c++/10/bits/stl_deque.h:1004
#4 0x00007f57e6eef78e in __cxa_finalize () from /lib64/libc.so.6
#5 0x00007f57e7469457 in __do_global_dtors_aux () from
/home/amc/opt/ats/lib/libtscore.so.10
#6 0x00007ffdf1420850 in ?? ()
#7 0x00007f57e758fbe3 in _dl_fini () from /lib64/ld-linux-x86-64.so.2
```
This indicates the static values are being destructed, which is why
interacting with `g_records_ht` crashes on the other thread.
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