Re: backend crash on DELETE, reproducible locally

On Thu, Nov 01, 2018 at 12:27:23PM -0300, Alvaro Herrera wrote:

> > Program received signal SIGSEGV, Segmentation fault.
> > heap_attisnull (tup=0x0, attnum=5, tupleDesc=0xb2990ef4) at ./build/../src/backend/access/common/heaptuple.c:403
> > 403	./build/../src/backend/access/common/heaptuple.c: Datei oder Verzeichnis nicht gefunden.
> > (gdb) thread apply all bt full
> > 
> > Thread 1 (Thread 0xb4c429c0 (LWP 22367)):
> > #0  heap_attisnull (tup=0x0, attnum=5, tupleDesc=0xb2990ef4) at ./build/../src/backend/access/common/heaptuple.c:403
> >         __func__ = "heap_attisnull"
> > #1  0x0087690d in ri_NullCheck (tupDesc=0xb2990ef4, tup=0x0, riinfo=0x2e1d548, rel_is_pk=true) at ./build/../src/backend/utils/adt/ri_triggers.c:2894
> >         attnums = 0x2e1d5a4
> >         i = 0
> >         allnull = true
> >         nonenull = true
> > #2  0x00879bf7 in RI_FKey_cascade_del (fcinfo=0xbfbda9e4) at ./build/../src/backend/utils/adt/ri_triggers.c:917
> 
>  Can you 'print trigdata' in frame 2?

Does this help at all ?

	(gdb) frame 2
	#2  0x00879bf7 in RI_FKey_cascade_del (fcinfo=0xbfbda9e4) at ./build/../src/backend/utils/adt/ri_triggers.c:917
	917     ./build/../src/backend/utils/adt/ri_triggers.c: Datei oder Verzeichnis nicht gefunden.
	(gdb) print trigdata
	$1 = (TriggerData *) 0xbfbdaca4

It is from another run, however.

Karsten
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