| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> |
| Cc: | Andres Freund <andres(at)2ndquadrant(dot)com>, Sergey Konoplev <gray(dot)ru(at)gmail(dot)com>, matioli(dot)matheus(at)gmail(dot)com, pgsql-bugs <pgsql-bugs(at)postgresql(dot)org>, Maxim Boguk <maxim(dot)boguk(at)gmail(dot)com>, Максим Панченко <Panchenko(at)gw(dot)tander(dot)ru>, Сизов Сергей Павлович <sizov_sp(at)gw(dot)tander(dot)ru> |
| Subject: | Re: Hot standby 9.2.6 -> 9.2.6 PANIC: WAL contains references to invalid pages |
| Date: | 2014-01-13 20:56:23 |
| Message-ID: | 18474.1389646583@sss.pgh.pa.us |
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| Lists: | pgsql-bugs pgsql-hackers |
Heikki Linnakangas <hlinnakangas(at)vmware(dot)com> writes:
> With RBM_NORMAL_ZERO_OK, AFAICS we're talking about a tiny patch to
> XLogReadBufferExtended. bufmgr.c doesn't need to do anything about the
> new mode, as it's XLogReadBuffer that does the the check for zero pages.
> Per attached patch (for demonstration purposes only, you also need to
> add the new mode to the header file and adjust comments).
That looks like it will still log the page as invalid if it's past EOF,
which I think we don't want.
Did you want to finish this off and commit, or were you just passing
what you had to me?
regards, tom lane
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