From:
"Thomas G(dot) Lockhart" <lockhart(at)alumni(dot)caltech(dot)edu>
To:
Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
Cc:
The Hermit Hacker <scrappy(at)hub(dot)org>, dg(at)illustra(dot)com, dz(at)cs(dot)unitn(dot)it,
hackers(at)postgresql(dot)org
Subject:
Re: [HACKERS] Re: [PATCHES] patches for 6.2.1p6
Date:
1998-03-17 03:46:30
Message-ID:
350DF216.C8E3E3C7@alumni.caltech.edu (view raw or flat )
Thread:
1998-03-16 03:07:20 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-16 23:27:02 from dg(at)illustra(dot)com (David Gould)
1998-03-17 02:47:57 from The Hermit Hacker <scrappy(at)hub(dot)org>
1998-03-17 03:20:48 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-17 03:46:30 from "Thomas G(dot) Lockhart" <lockhart(at)alumni(dot)caltech(dot)edu>
1998-03-17 03:49:04 from The Hermit Hacker <scrappy(at)hub(dot)org>
1998-03-17 03:54:53 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-17 04:04:23 from dg(at)illustra(dot)com (David Gould)
1998-03-17 04:16:10 from "Thomas G(dot) Lockhart" <lockhart(at)alumni(dot)caltech(dot)edu>
1998-03-17 06:38:14 from dg(at)illustra(dot)com (David Gould)
1998-03-17 07:40:44 from The Hermit Hacker <scrappy(at)hub(dot)org>
1998-03-17 16:45:10 from "Thomas G(dot) Lockhart" <lockhart(at)alumni(dot)caltech(dot)edu>
1998-03-17 04:51:23 from The Hermit Hacker <scrappy(at)hub(dot)org>
1998-03-17 14:20:00 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-20 10:59:01 from Massimo Dal Zotto <dz(at)cs(dot)unitn(dot)it>
1998-03-20 17:06:55 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-20 23:27:52 from The Hermit Hacker <scrappy(at)hub(dot)org>
1998-03-21 01:05:32 from dg(at)illustra(dot)com (David Gould)
1998-03-21 03:40:54 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-22 01:50:12 from Mattias Kregert <matti(at)algonet(dot)se>
1998-03-22 01:33:16 from The Hermit Hacker <scrappy(at)hub(dot)org>
1998-03-22 03:02:56 from dg(at)illustra(dot)com (David Gould)
1998-03-22 04:00:01 from The Hermit Hacker <scrappy(at)hub(dot)org>
1998-03-22 04:03:41 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-22 05:44:50 from The Hermit Hacker <scrappy(at)hub(dot)org>
1998-03-22 03:59:03 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-22 04:01:12 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-22 06:32:15 from Tom <tom(at)sdf(dot)com>
1998-03-20 19:15:47 from dg(at)illustra(dot)com (David Gould)
1998-03-18 21:50:35 from Tom Ivar Helbekkmo <tih(at)Hamartun(dot)Priv(dot)NO>
1998-03-18 23:51:51 from dg(at)illustra(dot)com (David Gould)
1998-03-31 21:20:40 from Tom Ivar Helbekkmo <tih(at)Hamartun(dot)Priv(dot)NO>
1998-04-01 19:56:56 from dg(at)illustra(dot)com (David Gould)
1998-04-02 04:52:33 from Tom Ivar Helbekkmo <tih(at)Hamartun(dot)Priv(dot)NO>
1998-04-02 07:06:36 from dg(at)illustra(dot)com (David Gould)
1998-03-19 02:35:56 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-19 03:24:25 from "Thomas G(dot) Lockhart" <lockhart(at)alumni(dot)caltech(dot)edu>
1998-03-19 04:33:49 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
1998-03-19 17:25:04 from Massimo Dal Zotto <dz(at)cs(dot)unitn(dot)it>
1998-03-19 19:47:10 from Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
Lists:
pgsql-hackers
> > Can you submit an appropriate patch that can be included in the
> > mega-patch to be created on Sunday?
>
> Just a warning that this is not going to be easy. We have OS-specific
> code for spinlocks in include/storage/s_lock.h and
> backend/storage/buffer/s_lock.c. So each S_LOCK macro call has to
> have its test-and-set logic de-coupled with its
> while-lock-fail-try-again logic.
> Most of them are easy, but some like VAX:
>
> #define S_LOCK(addr) __asm__("1: bbssi $0,(%0),1b": :"r"(addr))
>
> are hard to de-couple. Now, I did not know we supported NetBSD on
> VAX. Does it work, anyone? Can I remove it?
NetBSD on VAX in on our supported list, and was verified for v6.3 by Tom
Helbekkmo.
> This is going to be pretty tough to test on every platform we support,
> so if it is done now, it will have to be done carefully.
Is this behavior in v6.2.x? In any case, if it is anything but minimally
trivial, it should be given a test on every supported platform, since it
hits the heart of the platform-specific code, doesn't it? Seems like it
should be put into the CVS tree and shaken out until the next release...
- Tom
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