bump vendor/postgres #13
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This approach here doesn't work because it slows down all the responses. the workload() thread gets stuck in auth, prob with zero pipeline depth 0x00007fa28fe48e63 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6 (gdb) bt #0 0x00007fa28fe48e63 in epoll_wait () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x0000561a285bf44e in WaitEventSetWaitBlock (set=0x561a292723e8, cur_timeout=9999, occurred_events=0x7ffd1f11c970, nevents=1) at /home/christian/src/neon//vendor/postgres-v16/src/backend/storage/ipc/latch.c:1535 #2 0x0000561a285bf338 in WaitEventSetWait (set=0x561a292723e8, timeout=9999, occurred_events=0x7ffd1f11c970, nevents=1, wait_event_info=117440512) at /home/christian/src/neon//vendor/postgres-v16/src/backend/storage/ipc/latch.c:1481 #3 0x00007fa2904a7345 in call_PQgetCopyData (shard_no=0, buffer=0x7ffd1f11cad0) at /home/christian/src/neon//pgxn/neon/libpagestore.c:703 #4 0x00007fa2904a7aec in pageserver_receive (shard_no=0) at /home/christian/src/neon//pgxn/neon/libpagestore.c:899 #5 0x00007fa2904af471 in prefetch_read (slot=0x561a292863b0) at /home/christian/src/neon//pgxn/neon/pagestore_smgr.c:644 #6 0x00007fa2904af26b in prefetch_wait_for (ring_index=0) at /home/christian/src/neon//pgxn/neon/pagestore_smgr.c:596 #7 0x00007fa2904b489d in neon_read_at_lsnv (rinfo=..., forkNum=MAIN_FORKNUM, base_blockno=0, request_lsns=0x7ffd1f11cd60, buffers=0x7ffd1f11cd30, nblocks=1, mask=0x0) at /home/christian/src/neon//pgxn/neon/pagestore_smgr.c:3024 #8 0x00007fa2904b4f34 in neon_read_at_lsn (rinfo=..., forkNum=MAIN_FORKNUM, blkno=0, request_lsns=..., buffer=0x7fa28b969000) at /home/christian/src/neon//pgxn/neon/pagestore_smgr.c:3104 #9 0x00007fa2904b515d in neon_read (reln=0x561a292ef448, forkNum=MAIN_FORKNUM, blkno=0, buffer=0x7fa28b969000) at /home/christian/src/neon//pgxn/neon/pagestore_smgr.c:3146 #10 0x0000561a285f1ed5 in smgrread (reln=0x561a292ef448, forknum=MAIN_FORKNUM, blocknum=0, buffer=0x7fa28b969000) at /home/christian/src/neon//vendor/postgres-v16/src/backend/storage/smgr/smgr.c:567 #11 0x0000561a285a528a in ReadBuffer_common (smgr=0x561a292ef448, relpersistence=112 'p', forkNum=MAIN_FORKNUM, blockNum=0, mode=RBM_NORMAL, strategy=0x0, hit=0x7ffd1f11cf1b) at /home/christian/src/neon//vendor/postgres-v16/src/backend/storage/buffer/bufmgr.c:1134 #12 0x0000561a285a47e3 in ReadBufferExtended (reln=0x7fa28ce1c888, forkNum=MAIN_FORKNUM, blockNum=0, mode=RBM_NORMAL, strategy=0x0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/storage/buffer/bufmgr.c:781 #13 0x0000561a285a46ad in ReadBuffer (reln=0x7fa28ce1c888, blockNum=0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/storage/buffer/bufmgr.c:715 #14 0x0000561a2811d511 in _bt_getbuf (rel=0x7fa28ce1c888, blkno=0, access=1) at /home/christian/src/neon//vendor/postgres-v16/src/backend/access/nbtree/nbtpage.c:852 #15 0x0000561a2811d1b2 in _bt_metaversion (rel=0x7fa28ce1c888, heapkeyspace=0x7ffd1f11d9f0, allequalimage=0x7ffd1f11d9f1) at /home/christian/src/neon//vendor/postgres-v16/src/backend/access/nbtree/nbtpage.c:747 #16 0x0000561a28126220 in _bt_first (scan=0x561a292d0348, dir=ForwardScanDirection) at /home/christian/src/neon//vendor/postgres-v16/src/backend/access/nbtree/nbtsearch.c:1465 #17 0x0000561a28121a07 in btgettuple (scan=0x561a292d0348, dir=ForwardScanDirection) at /home/christian/src/neon//vendor/postgres-v16/src/backend/access/nbtree/nbtree.c:246 #18 0x0000561a28111afa in index_getnext_tid (scan=0x561a292d0348, direction=ForwardScanDirection) at /home/christian/src/neon//vendor/postgres-v16/src/backend/access/index/indexam.c:583 #19 0x0000561a28111d14 in index_getnext_slot (scan=0x561a292d0348, direction=ForwardScanDirection, slot=0x561a292d01a8) at /home/christian/src/neon//vendor/postgres-v16/src/backend/access/index/indexam.c:675 #20 0x0000561a2810fbcc in systable_getnext (sysscan=0x561a292d0158) at /home/christian/src/neon//vendor/postgres-v16/src/backend/access/index/genam.c:512 #21 0x0000561a287a1ee1 in SearchCatCacheMiss (cache=0x561a292a0f80, nkeys=1, hashValue=3028463561, hashIndex=1, v1=94670359561576, v2=0, v3=0, v4=0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/utils/cache/catcache.c:1440 #22 0x0000561a287a1d8a in SearchCatCacheInternal (cache=0x561a292a0f80, nkeys=1, v1=94670359561576, v2=0, v3=0, v4=0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/utils/cache/catcache.c:1360 #23 0x0000561a287a1a4f in SearchCatCache (cache=0x561a292a0f80, v1=94670359561576, v2=0, v3=0, v4=0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/utils/cache/catcache.c:1214 #24 0x0000561a287be060 in SearchSysCache (cacheId=10, key1=94670359561576, key2=0, key3=0, key4=0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/utils/cache/syscache.c:817 #25 0x0000561a287be66f in GetSysCacheOid (cacheId=10, oidcol=1, key1=94670359561576, key2=0, key3=0, key4=0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/utils/cache/syscache.c:1055 #26 0x0000561a286319a5 in get_role_oid (rolname=0x561a29270568 "cloud_admin", missing_ok=true) at /home/christian/src/neon//vendor/postgres-v16/src/backend/utils/adt/acl.c:5251 #27 0x0000561a283d42ca in check_hba (port=0x561a29268de0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/libpq/hba.c:2493 #28 0x0000561a283d5537 in hba_getauthmethod (port=0x561a29268de0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/libpq/hba.c:3067 #29 0x0000561a283c6fd7 in ClientAuthentication (port=0x561a29268de0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/libpq/auth.c:395 #30 0x0000561a287dc943 in PerformAuthentication (port=0x561a29268de0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/utils/init/postinit.c:247 #31 0x0000561a287dd9cd in InitPostgres (in_dbname=0x561a29270588 "postgres", dboid=0, username=0x561a29270568 "cloud_admin", useroid=0, load_session_libraries=true, override_allow_connections=false, out_dbname=0x0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/utils/init/postinit.c:929 #32 0x0000561a285fa10b in PostgresMain (dbname=0x561a29270588 "postgres", username=0x561a29270568 "cloud_admin") at /home/christian/src/neon//vendor/postgres-v16/src/backend/tcop/postgres.c:4293 #33 0x0000561a28524ce4 in BackendRun (port=0x561a29268de0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/postmaster/postmaster.c:4465 #34 0x0000561a285245da in BackendStartup (port=0x561a29268de0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/postmaster/postmaster.c:4193 #35 0x0000561a285209c4 in ServerLoop () at /home/christian/src/neon//vendor/postgres-v16/src/backend/postmaster/postmaster.c:1782 #36 0x0000561a2852030f in PostmasterMain (argc=3, argv=0x561a291c5fc0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/postmaster/postmaster.c:1466 #37 0x0000561a283dd987 in main (argc=3, argv=0x561a291c5fc0) at /home/christian/src/neon//vendor/postgres-v16/src/backend/main/main.c:238
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Feb 6, 2025
## Problem Found another pgcopydb segfault in error handling ```bash 2025-02-06 15:30:40.112 51299 ERROR pgsql.c:2330 [TARGET -738302813] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.112 51298 ERROR pgsql.c:2330 [TARGET -1407749748] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.112 51297 ERROR pgsql.c:2330 [TARGET -2073308066] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.112 51300 ERROR pgsql.c:2330 [TARGET 1220908650] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.432 51300 ERROR pgsql.c:2536 [Postgres] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.513 51290 ERROR copydb.c:773 Sub-process 51300 exited with code 0 and signal Segmentation fault 2025-02-06 15:30:40.578 51299 ERROR pgsql.c:2536 [Postgres] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.613 51290 ERROR copydb.c:773 Sub-process 51299 exited with code 0 and signal Segmentation fault 2025-02-06 15:30:41.253 51298 ERROR pgsql.c:2536 [Postgres] FATAL: terminating connection due to administrator command 2025-02-06 15:30:41.314 51290 ERROR copydb.c:773 Sub-process 51298 exited with code 0 and signal Segmentation fault 2025-02-06 15:30:43.133 51297 ERROR pgsql.c:2536 [Postgres] FATAL: terminating connection due to administrator command 2025-02-06 15:30:43.215 51290 ERROR copydb.c:773 Sub-process 51297 exited with code 0 and signal Segmentation fault 2025-02-06 15:30:43.215 51290 ERROR indexes.c:123 Some INDEX worker process(es) have exited with error, see above for details 2025-02-06 15:30:43.215 51290 ERROR indexes.c:59 Failed to create indexes, see above for details 2025-02-06 15:30:43.232 51271 ERROR copydb.c:768 Sub-process 51290 exited with code 12 ``` ```bashadmin@ip-172-31-38-164:~/pgcopydb$ gdb /usr/local/pgsql/bin/pgcopydb core GNU gdb (Debian 13.1-3) 13.1 Copyright (C) 2023 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "aarch64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <https://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/local/pgsql/bin/pgcopydb... [New LWP 51297] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1". Core was generated by `pgcopydb: create index ocr.ocr_pipeline_step_results_version_pkey '. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x0000aaaac3a4b030 in splitLines (lbuf=lbuf@entry=0xffffd8b86930, buffer=<optimized out>) at string_utils.c:630 630 *newLinePtr = '\0'; (gdb) bt #0 0x0000aaaac3a4b030 in splitLines (lbuf=lbuf@entry=0xffffd8b86930, buffer=<optimized out>) at string_utils.c:630 #1 0x0000aaaac3a3a678 in pgsql_execute_log_error (pgsql=pgsql@entry=0xffffd8b87040, result=result@entry=0x0, sql=sql@entry=0xffff81fe9be0 "CREATE UNIQUE INDEX IF NOT EXISTS ocr_pipeline_step_results_version_pkey ON ocr.ocr_pipeline_step_results_version USING btree (id, transaction_id);", debugParameters=debugParameters@entry=0xaaaaec5f92f0, context=context@entry=0x0) at pgsql.c:2322 #2 0x0000aaaac3a3bbec in pgsql_execute_with_params (pgsql=pgsql@entry=0xffffd8b87040, sql=0xffff81fe9be0 "CREATE UNIQUE INDEX IF NOT EXISTS ocr_pipeline_step_results_version_pkey ON ocr.ocr_pipeline_step_results_version USING btree (id, transaction_id);", paramCount=paramCount@entry=0, paramTypes=paramTypes@entry=0x0, paramValues=paramValues@entry=0x0, context=context@entry=0x0, parseFun=parseFun@entry=0x0) at pgsql.c:1649 #3 0x0000aaaac3a3c468 in pgsql_execute (pgsql=pgsql@entry=0xffffd8b87040, sql=<optimized out>) at pgsql.c:1522 #4 0x0000aaaac3a245f4 in copydb_create_index (specs=specs@entry=0xffffd8b8ec98, dst=dst@entry=0xffffd8b87040, index=index@entry=0xffff81f71800, ifNotExists=<optimized out>) at indexes.c:846 #5 0x0000aaaac3a24ca8 in copydb_create_index_by_oid (specs=specs@entry=0xffffd8b8ec98, dst=dst@entry=0xffffd8b87040, indexOid=<optimized out>) at indexes.c:410 #6 0x0000aaaac3a25040 in copydb_index_worker (specs=specs@entry=0xffffd8b8ec98) at indexes.c:297 #7 0x0000aaaac3a25238 in copydb_start_index_workers (specs=specs@entry=0xffffd8b8ec98) at indexes.c:209 #8 0x0000aaaac3a252f4 in copydb_index_supervisor (specs=specs@entry=0xffffd8b8ec98) at indexes.c:112 #9 0x0000aaaac3a253f4 in copydb_start_index_supervisor (specs=0xffffd8b8ec98) at indexes.c:57 #10 copydb_start_index_supervisor (specs=specs@entry=0xffffd8b8ec98) at indexes.c:34 #11 0x0000aaaac3a51ff4 in copydb_process_table_data (specs=specs@entry=0xffffd8b8ec98) at table-data.c:146 #12 0x0000aaaac3a520dc in copydb_copy_all_table_data (specs=specs@entry=0xffffd8b8ec98) at table-data.c:69 #13 0x0000aaaac3a0ccd8 in cloneDB (copySpecs=copySpecs@entry=0xffffd8b8ec98) at cli_clone_follow.c:602 #14 0x0000aaaac3a0d2cc in start_clone_process (pid=0xffffd8b743d8, copySpecs=0xffffd8b8ec98) at cli_clone_follow.c:502 #15 start_clone_process (copySpecs=copySpecs@entry=0xffffd8b8ec98, pid=pid@entry=0xffffd8b89788) at cli_clone_follow.c:482 #16 0x0000aaaac3a0d52c in cli_clone (argc=<optimized out>, argv=<optimized out>) at cli_clone_follow.c:164 #17 0x0000aaaac3a53850 in commandline_run (command=command@entry=0xffffd8b9eb88, argc=0, argc@entry=22, argv=0xffffd8b9edf8, argv@entry=0xffffd8b9ed48) at /home/admin/pgcopydb/src/bin/pgcopydb/../lib/subcommands.c/commandline.c:71 #18 0x0000aaaac3a01464 in main (argc=22, argv=0xffffd8b9ed48) at main.c:140 (gdb) ``` The problem is most likely that the following call returned a message in a read-only memory segment where we cannot replace \n with \0 in string_utils.c splitLines() function ```C char *message = PQerrorMessage(pgsql->connection); ``` ## Summary of changes modified the patch to also address this problem
knizhnik
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## Problem Found another pgcopydb segfault in error handling ```bash 2025-02-06 15:30:40.112 51299 ERROR pgsql.c:2330 [TARGET -738302813] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.112 51298 ERROR pgsql.c:2330 [TARGET -1407749748] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.112 51297 ERROR pgsql.c:2330 [TARGET -2073308066] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.112 51300 ERROR pgsql.c:2330 [TARGET 1220908650] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.432 51300 ERROR pgsql.c:2536 [Postgres] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.513 51290 ERROR copydb.c:773 Sub-process 51300 exited with code 0 and signal Segmentation fault 2025-02-06 15:30:40.578 51299 ERROR pgsql.c:2536 [Postgres] FATAL: terminating connection due to administrator command 2025-02-06 15:30:40.613 51290 ERROR copydb.c:773 Sub-process 51299 exited with code 0 and signal Segmentation fault 2025-02-06 15:30:41.253 51298 ERROR pgsql.c:2536 [Postgres] FATAL: terminating connection due to administrator command 2025-02-06 15:30:41.314 51290 ERROR copydb.c:773 Sub-process 51298 exited with code 0 and signal Segmentation fault 2025-02-06 15:30:43.133 51297 ERROR pgsql.c:2536 [Postgres] FATAL: terminating connection due to administrator command 2025-02-06 15:30:43.215 51290 ERROR copydb.c:773 Sub-process 51297 exited with code 0 and signal Segmentation fault 2025-02-06 15:30:43.215 51290 ERROR indexes.c:123 Some INDEX worker process(es) have exited with error, see above for details 2025-02-06 15:30:43.215 51290 ERROR indexes.c:59 Failed to create indexes, see above for details 2025-02-06 15:30:43.232 51271 ERROR copydb.c:768 Sub-process 51290 exited with code 12 ``` ```bashadmin@ip-172-31-38-164:~/pgcopydb$ gdb /usr/local/pgsql/bin/pgcopydb core GNU gdb (Debian 13.1-3) 13.1 Copyright (C) 2023 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "aarch64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <https://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/local/pgsql/bin/pgcopydb... [New LWP 51297] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1". Core was generated by `pgcopydb: create index ocr.ocr_pipeline_step_results_version_pkey '. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x0000aaaac3a4b030 in splitLines (lbuf=lbuf@entry=0xffffd8b86930, buffer=<optimized out>) at string_utils.c:630 630 *newLinePtr = '\0'; (gdb) bt #0 0x0000aaaac3a4b030 in splitLines (lbuf=lbuf@entry=0xffffd8b86930, buffer=<optimized out>) at string_utils.c:630 #1 0x0000aaaac3a3a678 in pgsql_execute_log_error (pgsql=pgsql@entry=0xffffd8b87040, result=result@entry=0x0, sql=sql@entry=0xffff81fe9be0 "CREATE UNIQUE INDEX IF NOT EXISTS ocr_pipeline_step_results_version_pkey ON ocr.ocr_pipeline_step_results_version USING btree (id, transaction_id);", debugParameters=debugParameters@entry=0xaaaaec5f92f0, context=context@entry=0x0) at pgsql.c:2322 #2 0x0000aaaac3a3bbec in pgsql_execute_with_params (pgsql=pgsql@entry=0xffffd8b87040, sql=0xffff81fe9be0 "CREATE UNIQUE INDEX IF NOT EXISTS ocr_pipeline_step_results_version_pkey ON ocr.ocr_pipeline_step_results_version USING btree (id, transaction_id);", paramCount=paramCount@entry=0, paramTypes=paramTypes@entry=0x0, paramValues=paramValues@entry=0x0, context=context@entry=0x0, parseFun=parseFun@entry=0x0) at pgsql.c:1649 #3 0x0000aaaac3a3c468 in pgsql_execute (pgsql=pgsql@entry=0xffffd8b87040, sql=<optimized out>) at pgsql.c:1522 #4 0x0000aaaac3a245f4 in copydb_create_index (specs=specs@entry=0xffffd8b8ec98, dst=dst@entry=0xffffd8b87040, index=index@entry=0xffff81f71800, ifNotExists=<optimized out>) at indexes.c:846 #5 0x0000aaaac3a24ca8 in copydb_create_index_by_oid (specs=specs@entry=0xffffd8b8ec98, dst=dst@entry=0xffffd8b87040, indexOid=<optimized out>) at indexes.c:410 #6 0x0000aaaac3a25040 in copydb_index_worker (specs=specs@entry=0xffffd8b8ec98) at indexes.c:297 #7 0x0000aaaac3a25238 in copydb_start_index_workers (specs=specs@entry=0xffffd8b8ec98) at indexes.c:209 #8 0x0000aaaac3a252f4 in copydb_index_supervisor (specs=specs@entry=0xffffd8b8ec98) at indexes.c:112 #9 0x0000aaaac3a253f4 in copydb_start_index_supervisor (specs=0xffffd8b8ec98) at indexes.c:57 #10 copydb_start_index_supervisor (specs=specs@entry=0xffffd8b8ec98) at indexes.c:34 #11 0x0000aaaac3a51ff4 in copydb_process_table_data (specs=specs@entry=0xffffd8b8ec98) at table-data.c:146 #12 0x0000aaaac3a520dc in copydb_copy_all_table_data (specs=specs@entry=0xffffd8b8ec98) at table-data.c:69 #13 0x0000aaaac3a0ccd8 in cloneDB (copySpecs=copySpecs@entry=0xffffd8b8ec98) at cli_clone_follow.c:602 #14 0x0000aaaac3a0d2cc in start_clone_process (pid=0xffffd8b743d8, copySpecs=0xffffd8b8ec98) at cli_clone_follow.c:502 #15 start_clone_process (copySpecs=copySpecs@entry=0xffffd8b8ec98, pid=pid@entry=0xffffd8b89788) at cli_clone_follow.c:482 #16 0x0000aaaac3a0d52c in cli_clone (argc=<optimized out>, argv=<optimized out>) at cli_clone_follow.c:164 #17 0x0000aaaac3a53850 in commandline_run (command=command@entry=0xffffd8b9eb88, argc=0, argc@entry=22, argv=0xffffd8b9edf8, argv@entry=0xffffd8b9ed48) at /home/admin/pgcopydb/src/bin/pgcopydb/../lib/subcommands.c/commandline.c:71 #18 0x0000aaaac3a01464 in main (argc=22, argv=0xffffd8b9ed48) at main.c:140 (gdb) ``` The problem is most likely that the following call returned a message in a read-only memory segment where we cannot replace \n with \0 in string_utils.c splitLines() function ```C char *message = PQerrorMessage(pgsql->connection); ``` ## Summary of changes modified the patch to also address this problem
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