2Gb SYSVSHM limitation
John Baldwin
jhb at freebsd.org
Mon Jul 17 17:12:08 UTC 2006
On Wednesday 12 July 2006 04:58, Igor Sysoev wrote:
> Hi,
>
> the current kernel limit of SysV memory segment is 2G.
> Today it is too small for amd64 machines.
>
> Year ago Christian S.J. Peron had propsed the patch
> http://people.freebsd.org/~csjp/bigsharedmem.1117028863.diff
> to increase the limit:
> http://freebsd.rambler.ru/bsdmail/freebsd-current_2005/msg05627.html
>
> Are objections against this patch ?
Well, it breaks the ABI of shminfo. :( Changing the ABI of structures shared
with userspace like this requires duplicate syscalls, etc. to not break
existing binaries (such as existing 6.x amd64 binaries).
--
John Baldwin
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