8000 [YSQL][SQLsmith] Segmentation fault in YBCPgFlushBufferedOperations() · Issue #11365 · yugabyte/yugabyte-db · GitHub
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[YSQL][SQLsmith] Segmentation fault in YBCPgFlushBufferedOperations() #11365

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def- opened this issue Feb 4, 2022 · 0 comments
Open

[YSQL][SQLsmith] Segmentation fault in YBCPgFlushBufferedOperations() #11365

def- opened this issue Feb 4, 2022 · 0 comments
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area/ysql Yugabyte SQL (YSQL) kind/bug This issue is a bug kind/failing-test Tests and testing infra priority/medium Medium priority issue qa_automation Bugs identified via itest-system, LST, Stress automation or causing automation failures

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def- commented Feb 4, 2022 •
edited by yugabyte-ci
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Jira Link: DB-1100

Description

Found with SQLsmith, crashes in Postgres binary with this=nullpointer:

Core was generated by `postgres: yugabyte yugabyte 127.0.0.1(55890) ROLLBACK                         '.
Program terminated with signal 11, Segmentation fault.
#0  operator-> (this=0x360) at ../../src/yb/gutil/ref_counted.h:363
363	    ScopedRefPtrCheck(ptr_ != nullptr);
(gdb) bt
#0  operator-> (this=0x360) at ../../src/yb/gutil/ref_counted.h:363
#1  FlushBufferedOperations (this=0x0) at ../../src/yb/yql/pggate/pggate.cc:1024
#2  YBCPgFlushBufferedOperations () at ../../src/yb/yql/pggate/ybc_pggate.cc:634
#3  0x000000000093b3c2 in YBFlushBufferedOperations ()
    at /nfusr/dev-server/dfelsing/code/yugabyte-db/src/postgres/src/backend/utils/misc/../../../../../../../src/postgres/src/backend/utils/misc/pg_yb_utils.c:1420
#4  PortalRun (portal=0x283e118, count=9223372036854775807, isTopLevel=<optimized out>, run_once=<optimized out>, dest=0x266f498, altdest=0x266f498, completionTag=0x7ffdc28fef30 "ROLLBACK")
    at ../../../../../../src/postgres/src/backend/tcop/pquery.c:833
#5  0x00000000009376e6 in yb_exec_simple_query_impl (query_string=0x266e118) at ../../../../../../src/postgres/src/backend/tcop/postgres.c:1161
#6  0x0000000000937dbe in yb_exec_query_wrapper (exec_context=0x266e000, restart_data=<optimized out>, functor=0x936e40 <yb_exec_simple_query_impl>, functor_context=0x266e118)
    at ../../../../../../src/postgres/src/backend/tcop/postgres.c:4445
#7  0x000000000093469d in PostgresMain (argc=1, argv=<optimized out>, dbname=<optimized out>, username=0x2743fe8 "yugabyte") at ../../../../../../src/postgres/src/backend/tcop/postgres.c:4479
#8  0x00000000008900ab in BackendRun (port=0x24ea1e0) at ../../../../../../src/postgres/src/backend/postmaster/postmaster.c:4470
#9  0x000000000088f7e2 in ServerLoop () at ../../../../../../src/postgres/src/backend/postmaster/postmaster.c:4136
#10 0x000000000088c021 in PostmasterMain (argc=<optimized out>, argv=0x25006c0) at ../../../../../../src/postgres/src/backend/postmaster/postmaster.c:1417
#11 0x00000000007ac843 in PostgresServerProcessMain (argc=23, argv=0x25006c0) at ../../../../../../src/postgres/src/backend/main/main.c:234
#12 0x00000000004de432 in main ()

Happened on execution of ROLLBACK;, can't reproduce.

Code state: 24ec10d (Release build)
Coredump: core.24374.zip
@def- def- added area/ysql Yugabyte SQL (YSQL) kind/bug This issue is a bug labels Feb 4, 2022
@yugabyte-ci yugabyte-ci added the priority/medium Medium priority issue label Jun 8, 2022
@kripasreenivasan kripasreenivasan added the qa_automation Bugs identified via itest-system, LST, Stress automation or causing automation failures label Sep 13, 2022
@yugabyte-ci yugabyte-ci added the kind/failing-test Tests and testing infra label Oct 12, 2022
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