| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Craig Ringer <craig(at)2ndquadrant(dot)com> |
| Cc: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: OK, so culicidae is *still* broken |
| Date: | 2017-04-24 18:08:48 |
| Message-ID: | 20170424180848.gxaw44jwag7doqz5@alap3.anarazel.de |
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| Lists: | pgsql-hackers |
Hi,
On 2017-04-24 14:25:34 +0530, Amit Kapila wrote:
> Error code 87 means "invalid parameter". Some googling [1] indicates
> such an error occurs if we pass the out-of-range address to
> MapViewOfFileEx. Another possible theory is that we must pass the
> address as multiple of the system's memory allocation granularity as
> that is expected by specs of MapViewOfFileEx. I can try doing that
> but I am not confident that this is the right approach because of
> below text mentioned in docs (msdn) of MapViewOfFileEx.
> "While it is possible to specify an address that is safe now (not used
> by the operating system), there is no guarantee that the address will
> remain safe over time. Therefore, it is better to let the operating
> system choose the address.".
Sure, that's the same as mmap() etc say. I'd not be overly deterred by
that.
On 2017-04-24 23:14:40 +0800, Craig Ringer wrote:
> In the long run we'll probably be forced toward threading or far pointers.
I'll vote for removing the windows port, before going for that. And I'm
not even joking.
Greetings,
Andres Freund
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