Re: BUG #5238: frequent signal 11 segfaults

From: Nagy Daniel <nagy(dot)daniel(at)telekom(dot)hu>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Craig Ringer <craig(at)postnewspapers(dot)com(dot)au>, "pgsql-bugs(at)postgresql(dot)org" <pgsql-bugs(at)postgresql(dot)org>
Subject: Re: BUG #5238: frequent signal 11 segfaults
Date: 2009-12-12 19:08:03
Message-ID: 4B23EA13.1020004@telekom.hu
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(gdb) p debug_query_string
$1 = 12099472

Now I recompiled pg with --enable-debug and waiting for a new core dump.
I'll post the backtrace and the debug_query_string output ASAP.

Please let me know if there is anything more I can do.

Thanks,

Daniel

Tom Lane wrote:
> Nagy Daniel <nagy(dot)daniel(at)telekom(dot)hu> writes:
>> (gdb) backtrace
>> #0 0x0000000000453415 in slot_deform_tuple ()
>> #1 0x000000000045383a in slot_getattr ()
>> #2 0x0000000000550dac in ExecHashGetHashValue ()
>> #3 0x0000000000552a98 in ExecHashJoin ()
>> #4 0x0000000000543368 in ExecProcNode ()
>> #5 0x0000000000552aa6 in ExecHashJoin ()
>> #6 0x0000000000543368 in ExecProcNode ()
>
> Not terribly informative (these binaries are apparently not as
> un-stripped as you thought). However, this suggests it's a specific
> query going wrong --- "p debug_query_string" in gdb might tell you what.
> Please see if you can extract a test case.
>
> regards, tom lane

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