| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | pgsql-hackers(at)postgresql(dot)org, Simon Riggs <simon(at)2ndquadrant(dot)com>, Hiroyuki Yamada <yamada(at)kokolink(dot)net> |
| Subject: | Re: An example of bugs for Hot Standby |
| Date: | 2010-01-20 16:59:36 |
| Message-ID: | 14578.1264006776@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Andres Freund <andres(at)anarazel(dot)de> writes:
> I realize its way too late in the cycle for that, but why dont we start using
> some library for easy cross platform atomic ops?
(1) there probably isn't one that does exactly what we want, works
everywhere, and has the right license;
(2) what actual gain would we get? We've already done the work.
>> [ grows visibly pale ] *Please* tell me we are not trying to take
>> locks in a signal handler. What happens if it interrupts code that
>> is already holding that lock?
> Yes the patch does that at two places.
That's a must-fix.
regards, tom lane
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