Re: [BUGS] Re: [PATCH] BUG #13416: Postgres >= 9.3 doesn't useoptimized shared memory on Solaris anymore - Mailing list pgsql-bugs

From Andres Freund
Subject Re: [BUGS] Re: [PATCH] BUG #13416: Postgres >= 9.3 doesn't useoptimized shared memory on Solaris anymore
Date
Msg-id 20171004175607.356vuonm5pq7t2vo@alap3.anarazel.de
Whole thread Raw
In response to [BUGS] Re: [PATCH] BUG #13416: Postgres >= 9.3 doesn'tuse optimized shared memory on Solaris anymore  (Sean Chittenden <seanc@joyent.com>)
Responses Re: [BUGS] Re: [PATCH] BUG #13416: Postgres>= 9.3 doesn't use optimized shared memory on Solarisanymore
List pgsql-bugs
Hi,

On 2017-10-04 10:47:06 -0700, Sean Chittenden wrote:
> Hello.  We identified the same problem.  Sam Gwydir and Josh Clulow were able to put together the appropriate fix
after.
> 
> The breakage in src/backend/port/sysv_shmem.c and src/include/storage/dsm_impl.h should be back ported to all
supportedversions (the regression was introduced between the 9.2 and 9.3 branches).
 

Personally I don't think "breakage" is quite the right work.

I also don't like that we're unconditionally not using
USE_ANONYMOUS_SHMEM - doesn't that run into similar config limits on
solaris based stuff as it does on linux etc?

I think if we want to do this, we should rather go with a patch like
https://www.postgresql.org/message-id/20140422121921.GD4449@awork2.anarazel.de

Greetings,

Andres Freund


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