From: Jehan-Guillaume de Rorthais <jgdr@dalibo.com>
To: Tomas Vondra <tomas.vondra@enterprisedb.com>
Cc: pgsql-hackers@lists.postgresql.org
Subject: Re: Memory leak from ExecutorState context?
Date: Wed, 1 Mar 2023 19:09:44 +0100
Message-ID: <20230301190944.56ed0665@karst> (raw)
In-Reply-To: <20230301184840.0a897a80@karst>
References: <20230228190643.1e368315@karst>
<45d453c8-b2d3-b477-36eb-32fdf4455f3c@enterprisedb.com>
<20230301184840.0a897a80@karst>
On Wed, 1 Mar 2023 18:48:40 +0100
Jehan-Guillaume de Rorthais <jgdr@dalibo.com> wrote:
...
> You'll find some intermediate stats I already collected in attachment:
>
> * break 1, 2 and 3 are from AllocSetAlloc, break 4 is from AllocSetFree.
> * most of the non-free'd chunk are allocated since the very beginning, before
> the 5000's allocation call for almost 1M call so far.
> * 3754 of them have a chunk->size of 0
> * it seems there's some buggy stats or data:
> # this one actually really comes from the gdb log
> 0x38a77b8: break=3 num=191 sz=4711441762604810240 (weird sz)
> # this one might be a bug in my script
> 0x2: break=2 num=945346 sz=2 (weird address)
> * ignoring the weird size requested during the 191st call, the total amount
> of non free'd memory is currently 5488MB
I forgot one stat. I don't know if this is expected, normal or not, but 53
chunks has been allocated on an existing address that was not free'd before.
Regards,
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To: pgsql-hackers@postgresql.org
Cc: jgdr@dalibo.com, tomas.vondra@enterprisedb.com, pgsql-hackers@lists.postgresql.org
Subject: Re: Memory leak from ExecutorState context?
In-Reply-To: <20230301190944.56ed0665@karst>
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