unexpected error from pymonetdb
Server closed connection
query started on line 339 of file sqlancer17.test
query text:
SELECT json.tojsonarray('<') FROM t1, t2 GROUP BY t1.c0

Server may have crashed
[Errno 32] Broken pipe
query started on line 344 of file sqlancer17.test
query text:
ROLLBACK


Segmentation fault
           PID: 2510229 (mserver5)
           UID: 9375 (monet)
           GID: 60020 (da)
        Signal: 11 (SEGV)
     Timestamp: Tue 2021-09-14 23:37:19 CEST (12s ago)
  Command Line: mserver5 --debug=10 --set gdk_nr_threads 1 --set mapi_listenaddr all --set mapi_port 0 --set mapi_usock /tmp/mtest-2499604/.s.monetdb.${PORT} --forcemito --dbpath=/export/scratch1/home/monet/testing/ce904debefe6-1-1-3/tests/sql/dbfarm/mTests_sql_test_SQLancer --set gdk_vm_maxsize 8589934592 --loadmodule udf
    Executable: /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/bin/mserver5
 Control Group: /user.slice/user-9375.slice/session-12369.scope
          Unit: session-12369.scope
         Slice: user-9375.slice
       Session: 12369
     Owner UID: 9375 (monet)
       Boot ID: f6574743b28148169aca4bd1274f98c3
    Machine ID: 1f4194aaa0f646ea93c51854757f1d73
      Hostname: lab01.da.cwi.nl
       Storage: /var/lib/systemd/coredump/core.mserver5.9375.f6574743b28148169aca4bd1274f98c3.2510229.1631655439000000.lz4
       Message: Process 2510229 (mserver5) of user 9375 dumped core.

[New LWP 2510848]
[New LWP 2510229]
[New LWP 2510238]
[New LWP 2510230]
[New LWP 2510231]
[New LWP 2510232]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `mserver5 --debug=10 --set gdk_nr_threads 1 --set mapi_listenaddr all --set mapi'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f4f8207726a in __strncpy_sse2_unaligned () from /lib64/libc.so.6
[Current thread is 1 (Thread 0x7f4f54354640 (LWP 2510848))]

Thread 6 (Thread 0x7f4f54555640 (LWP 2510232)):
#0  0x00007f4f820c73ff in poll () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f4f82b224cb in SERVERlistenThread () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdb5.so.31
No symbol table info available.
#2  0x00007f4f8269e639 in thread_starter () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#3  0x00007f4f821a73f9 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007f4f820d24c3 in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 5 (Thread 0x7f4f80c81640 (LWP 2510231)):
#0  0x00007f4f82099451 in clock_nanosleep@GLIBC_2.2.5 () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f4f8209e997 in nanosleep () from /lib64/libc.so.6
No symbol table info available.
#2  0x00007f4f826a0ebf in MT_sleep_ms () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#3  0x00007f4f82a8fd13 in profilerHeartbeat () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdb5.so.31
No symbol table info available.
#4  0x00007f4f8269e639 in thread_starter () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#5  0x00007f4f821a73f9 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#6  0x00007f4f820d24c3 in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 4 (Thread 0x7f4f80e82640 (LWP 2510230)):
#0  0x00007f4f82099451 in clock_nanosleep@GLIBC_2.2.5 () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f4f8209e997 in nanosleep () from /lib64/libc.so.6
No symbol table info available.
#2  0x00007f4f826a0ebf in MT_sleep_ms () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#3  0x00007f4f826548da in BBPmanager () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#4  0x00007f4f8265d79a in THRstarter () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#5  0x00007f4f8269e639 in thread_starter () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#6  0x00007f4f821a73f9 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f4f820d24c3 in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 3 (Thread 0x7f4f4c36c640 (LWP 2510238)):
#0  0x00007f4f82099451 in clock_nanosleep@GLIBC_2.2.5 () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f4f8209e997 in nanosleep () from /lib64/libc.so.6
No symbol table info available.
#2  0x00007f4f826a0ebf in MT_sleep_ms () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#3  0x00007f4f8082a1ed in store_manager () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdbsql.so.11
No symbol table info available.
#4  0x00007f4f8265d79a in THRstarter () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#5  0x00007f4f8269e639 in thread_starter () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#6  0x00007f4f821a73f9 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#7  0x00007f4f820d24c3 in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 2 (Thread 0x7f4f810798c0 (LWP 2510229)):
#0  0x00007f4f82099451 in clock_nanosleep@GLIBC_2.2.5 () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f4f8209e997 in nanosleep () from /lib64/libc.so.6
No symbol table info available.
#2  0x00007f4f826a0ebf in MT_sleep_ms () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#3  0x0000000000403717 in main ()
No symbol table info available.

Thread 1 (Thread 0x7f4f54354640 (LWP 2510848)):
#0  0x00007f4f8207726a in __strncpy_sse2_unaligned () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f4f82aacca5 in JSONjsonaggr () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdb5.so.31
No symbol table info available.
#2  0x00007f4f82aad69f in JSONsubjsoncand () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdb5.so.31
No symbol table info available.
#3  0x00007f4f82a7f3a7 in runMALsequence () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdb5.so.31
No symbol table info available.
#4  0x00007f4f82a80dcc in runMAL () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdb5.so.31
No symbol table info available.
#5  0x00007f4f80779a00 in SQLrun () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdbsql.so.11
No symbol table info available.
#6  0x00007f4f8077aeb3 in SQLengineIntern () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdbsql.so.11
No symbol table info available.
#7  0x00007f4f82a92fde in runScenario () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdb5.so.31
No symbol table info available.
#8  0x00007f4f82a936a2 in MSserveClient () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdb5.so.31
No symbol table info available.
#9  0x00007f4f82a93dcf in MSscheduleClient () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdb5.so.31
No symbol table info available.
#10 0x00007f4f82b21b5e in doChallenge () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libmonetdb5.so.31
No symbol table info available.
#11 0x00007f4f8265d79a in THRstarter () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#12 0x00007f4f8269e639 in thread_starter () from /export/scratch1/home/monet/testing/ce904debefe6-1-1-3/install/lib64/libbat.so.23
No symbol table info available.
#13 0x00007f4f821a73f9 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#14 0x00007f4f820d24c3 in clone () from /lib64/libc.so.6
No symbol table info available.