Re: invalid memory alloc after insert with c trigger function

This is the debug of last varcharout routine:

Breakpoint 1, varcharout (fcinfo=0xbf8a1e7c) at varchar.c:441
441 VarChar *s = PG_GETARG_VARCHAR_P(0);
440 {
(gdb) print fcinfo
$25 = (FunctionCallInfo) 0xbf8a1e7c
441 VarChar *s = PG_GETARG_VARCHAR_P(0);
446 len = VARSIZE(s) - VARHDRSZ;
(gdb) print s
$28 = (VarChar *) 0xb5ebf024
447 result = palloc(len + 1);
(gdb) print len
$29 = -4
(gdb) next
Warning:
Cannot insert breakpoint -43.
Error accessing memory address 0xf72a1719: Input/Output error

> =?ISO-8859-2?Q?Dud=E1s_J=F3zsef?= <dj1999(at)freemail(dot)hu> writes:
>
>> I know that something doing wrong, but I can't find out what is it.
>>
>
> Getting a stack trace from the point of the errfinish call would
> probably help narrow it down. One thing that's not clear is whether
> SPI_modifytuple itself is failing (have you checked all the *other*
> arguments you're passing it?) or whether it happens later.
>
> regards, tom lane
>
>
>