Re: [HACKERS] Core dump in regression tests.

In message <199808311703(dot)SAA29362(at)mtcc(dot)demon(dot)co(dot)uk>, Keith Parks writes:
> Thomas A. Szybist" <szybist(at)boxhill(dot)com>
> > > Bruce Momjian
> > >
> > > Again, if someone wants to conditionally compile the directories to find
> > > the offending file, I am sure we can get a fix for it.
> > >
> >
> > At first look it seems to be: backend/catalog/indexing.c.
> > Maybe Keith can confirm?
> >
>
> With the latest from cvs the core dump on "create table" is back
> when compiled with -O2.
>
> If I compile backend/catalog with -O2 then the table creation is
^^^
> OK. So it looks like it may be indexing.c, even with Bruce's
> recent fixes.

Do you mean -O0 here?

>
> I'm still getting some regression test failures, the worst of which
> is a core when creating a function.
>
> Here's a bactrace from a "create function" immediately after an initdb
> and using the template1 database.
>
> Keith.
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x34264 in GetIndexValue (tuple=0x1ba810, hTupDesc=0x1ba86c, attOff=0,
> attrNums=0x1bd544, fInfo=0x0,
> attNull=0xefffcc97 "") at indexam.c:404
> 404 returnVal = heap_getattr(tuple, attrNums[attOff],
> (gdb) bt
> #0 0x34264 in GetIndexValue (tuple=0x1ba810, hTupDesc=0x1ba86c, attOff=0,
> attrNums=0x1bd544, fInfo=0x0,
> attNull=0xefffcc97 "") at indexam.c:404
> #1 0x4974c in FormIndexDatum (numberOfAttributes=1, attributeNumber=0x1bd544,
> heapTuple=0x1ba810,
> heapDescriptor=0x1ba86c, datum=0xefffcd80, nullv=0xefffcd20 " \230",
> fInfo=0x0) at index.c:1284
> #2 0x4a4e8 in CatalogIndexInsert (idescs=0xefffcdf8, nIndices=3,
> heapRelation=0x171b90, heapTuple=0x1ba810)
> at indexing.c:154
> #3 0x4fb2c in ProcedureCreate (procedureName=0x166bf0 "widget_in", returnsSet=0
> '\000',
> returnTypeName=0x166bb0 "widget", languageName=0xefffcf98 "C",
> prosrc=0xeb800 "-",
> probin=0x1aeb10 "/usr/local/pgsql/src/test/regress/input/../regress.so",
> canCache=112 'p',
> trusted=1 '\001', byte_pct=100, perbyte_cpu=0, percall_cpu=0,
> outin_ratio=100, argList=0x166bd0,
> dest=Remote) at pg_proc.c:275
> #4 0x55674 in CreateFunction (stmt=0x165a50, dest=Remote) at define.c:329
> #5 0xb8430 in ProcessUtility (parsetree=0x165a50, dest=Remote) at utility.c:392
> #6 0xb60f8 in pg_exec_query_dest (
> query_string=0xefffd1a0 "CREATE FUNCTION widget_in(opaque)\n RETURNS
> widget\n AS '/usr/local/pgsql/src/test/regress/input/../regress.so'\n
> LANGUAGE 'c';", dest=Remote, aclOverride=0 '\000') at postgres.c:749
> #7 0xb5fec in pg_exec_query (
> query_string=0xefffd1a0 "CREATE FUNCTION widget_in(opaque)\n RETURNS
> widget\n AS '/usr/local/pgsql/src/test/regress/input/../regress.so'\n
> LANGUAGE 'c';") at postgres.c:687
> #8 0xb72ec in PostgresMain (argc=10, argv=0xeffff268, real_argc=10,
> real_argv=0xeffffd84) at postgres.c:1609
> #9 0x9f27c in DoBackend (port=0x107c00) at postmaster.c:1519
> #10 0x9ecf4 in BackendStartup (port=0x167c00) at postmaster.c:1291
> #11 0x9e16c in ServerLoop () at postmaster.c:750
> #12 0x9dcc4 in PostmasterMain (argc=0, argv=0xeffffd84) at postmaster.c:556
> #13 0x723b0 in main (argc=10, argv=0xeffffd84) at main.c:93
>
>

I managed to get this running on a Solaris box. -O2 was not included
by default (wonder why :)). I got a core dump when running initdb
with -O2. I recompiled indexing.c without -O2, and it is much better.
(I basically get the same results as under Linux.) I get the same
core dumps that Keith is seeing with create function.

So, both my Sparc boxes are behaving the same.

Tom Szybist
szybist(at)boxhill(dot)com