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Re: BUG #2406: Not all systems support SHM_SHARE_MMU

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Paul van der Zwan" <paul(dot)vanderzwan(at)sun(dot)com>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #2406: Not all systems support SHM_SHARE_MMU
Date: 2006-04-25 05:48:42
Message-ID: 10697.1145944122@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-bugs
"Paul van der Zwan" <paul(dot)vanderzwan(at)sun(dot)com> writes:
> Only systems with large pagesizes support ISM, so always defining 
> #define PG_SHMAT_FLAGS                  SHM_SHARE_MMU
> in src/backend/port/sysv_shmem.c  will cause all calls to shmat to fail with
> EINVAL on systems that do not support large pages.

That code's been in there since PG 7.3, and no one before you has
complained.  Are you sure you've identified the problem correctly?

			regards, tom lane

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Next:From: Paul van der ZwanDate: 2006-04-25 06:50:28
Subject: Re: BUG #2406: Not all systems support SHM_SHARE_MMU
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Subject: Re: BUG #2371: database crashes with semctl failed error

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