Re: [HACKERS] Server crash due to SIGBUS(Bus Error) when trying toaccess the memory created using dsm_create(). - Mailing list pgsql-hackers

From Thomas Munro
Subject Re: [HACKERS] Server crash due to SIGBUS(Bus Error) when trying toaccess the memory created using dsm_create().
Date
Msg-id CAEepm=3b+Wu81XgseDcc_a6JUC6_JCgyj41LGWfY1qto3gE1KA@mail.gmail.com
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In response to Re: [HACKERS] Server crash due to SIGBUS(Bus Error) when trying toaccess the memory created using dsm_create().  (Thomas Munro <thomas.munro@enterprisedb.com>)
Responses Re: [HACKERS] Server crash due to SIGBUS(Bus Error) when trying to access the memory created using dsm_create().
List pgsql-hackers
On Thu, Aug 17, 2017 at 11:39 AM, Thomas Munro
<thomas.munro@enterprisedb.com> wrote:
> On Thu, Jun 29, 2017 at 12:24 PM, Thomas Munro
> <thomas.munro@enterprisedb.com> wrote:
>> fallocate-v5.patch
>
> Added to commitfest so we don't lose track of this.

Rebased due to collision with recent configure.in adjustments.  I also
wrote a commit message and retested with create-dsm-test.patch (from
upthread).

So, do we want this patch?  It's annoying to expend cycles doing this,
but it only really hurts if you allocate a lot of DSM space that you
never actually use.  If that ever becomes a serious problem, perhaps
that'll be a sign that we should be reusing the space between queries
anyway?

-- 
Thomas Munro
http://www.enterprisedb.com

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