[RFC] SysV SHM on 64-bit platforms
alfred at freebsd.org
Sat Jan 19 04:45:54 PST 2008
* Jung-uk Kim <jkim at FreeBSD.org> [080119 00:05] wrote:
> While I was working on kern/113218, I realized it is a bigger problem
> than I originally thought:
> Because fixing this PR breaks ABI, I had to make compat shims. But
> the question is which branch to break? Since we are very close to
> 7.0-RELEASE, the question became more complicated. A lot of people
> are asking me to fix this PR because it is much needed fix for large
> database installations, so I have to make a quick decision. :-(
I think this is a step forward so it's not so bad, just make sure
to talk to "re@" about your MFCs, if it'll work out.
> I think I have four options (with corresponding patches):
> - Option 1: HEAD.
> - Option 2: HEAD and RELENG_7.
> - Option 3: HEAD, RELENG_7, and RELENG_7_0.
> - Option 4: Don't do anything ATM. Break it with ipc_perm later.
I like option 3 if possible.
> FYI, fixing ipc_perm is a lot more complicated and very intrusive.
Why does ipc_perm need fixing?
- Alfred Perlstein
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