Segmentation fault in PostgreSQL 17.7 during REINDEX TABLE CONCURRENTLY - Mailing list pgsql-bugs

2026-03-17 18:19:55.244 WAT [2261667] LOG:  server process (PID 2382873) was terminated by signal 11: Segmentation fault

2026-03-17 18:19:55.244 WAT [2261667] DETAIL:  Failed process was running: REINDEX TABLE CONCURRENTLY sibs.purchases;

2026-03-17 18:19:55.244 WAT [2261667] LOG:  terminating any other active server processes

2026-03-17 18:19:55.257 WAT [2261667] LOG:  all server processes terminated; reinitializing

2026-03-17 18:19:55.354 WAT [2382972] LOG:  database system was interrupted; last known up at 2026-03-17 18:18:58 WAT

2026-03-17 18:19:55.449 WAT [2382972] LOG:  database system was not properly shut down; automatic recovery in progress

2026-03-17 18:19:55.457 WAT [2382972] LOG:  redo starts at 310/8142BEC0

2026-03-17 18:19:56.352 WAT [2382972] LOG:  invalid record length at 310/988BAA18: expected at least 24, got 0

2026-03-17 18:19:56.352 WAT [2382972] LOG:  redo done at 310/988BA9E0 system usage: CPU: user: 0.28 s, system: 0.34 s, elapsed: 0.89 s

2026-03-17 18:19:56.360 WAT [2382973] LOG:  checkpoint starting: end-of-recovery immediate wait

           PID: 2382873 (postgres)

           UID: 26 (postgres)

           GID: 26 (postgres)

        Signal: 11 (SEGV)

     Timestamp: Tue 2026-03-17 18:19:53 WAT (16h ago)

  Command Line: postgres: postgres easysms_restore_250226 [local] REINDEX

    Executable: /usr/pgsql-17/bin/postgres

Control Group: /system.slice/postgresql-17.service

          Unit: postgresql-17.service

         Slice: system.slice

       Boot ID: 0a323ad20fcf403791a46425b08245f6

    Machine ID: 9db3f77eadaf498bab9ee45abb0ba721

      Hostname: cerstidbtstc

       Storage: /var/lib/systemd/coredump/core.postgres.26.0a323ad20fcf403791a46425b08245f6.2382873.1773767993000000.lz4

       Message: Process 2382873 (postgres) of user 26 dumped core.

                Stack trace of thread 2382873:

                #0  0x00000000005d67a8 validate_index_callback (postgres)

                #1  0x00000000005738bd btvacuumpage (postgres)

                #2  0x0000000000573d8a btvacuumscan (postgres)

                #3  0x0000000000573f00 btbulkdelete (postgres)

                #4  0x00000000005d9873 validate_index (postgres)

                #5  0x000000000066b583 ReindexRelationConcurrently.isra.1 (postgres)

                #6  0x000000000066c784 ExecReindex (postgres)

                #7  0x0000000000870d2f ProcessUtilitySlow.isra.5 (postgres)

                #8  0x000000000086fa60 standard_ProcessUtility (postgres)

                #9  0x000000000086e4cf PortalRunUtility (postgres)

                #10 0x000000000086e603 PortalRunMulti (postgres)

                #11 0x000000000086eb5b PortalRun (postgres)

                #12 0x000000000086adab exec_simple_query (postgres)

                #13 0x000000000086c598 PostgresMain (postgres)

                #14 0x00000000008672b5 BackendMain (postgres)

                #15 0x00000000007d850f postmaster_child_launch (postgres)

                #16 0x00000000007dbe5c ServerLoop (postgres)

                #17 0x00000000007dda78 PostmasterMain (postgres)

                #18 0x000000000050f843 main (postgres)

                #19 0x00007f91323277c3 __libc_start_main (libc.so.6)

                #20 0x000000000050fe1e _start (postgres)