Hi Robert, Heikki,
On 2013-09-24 13:25:41 +0200, Andres Freund wrote:
> > I'm afraid this patch was a few bricks shy of a load. The
> > log_newpage_buffer() function asserts that:
> >
> > > /* We should be in a critical section. */
> > > Assert(CritSectionCount > 0);
> >
> > But the call in vacuumlazy.c is not inside a critical section. Also, the
> > comments in log_newpage_buffer() say that the caller should mark the buffer
> > dirty *before* calling log_newpage_buffer(), but in vacuumlazy.c, it's
> > marked dirty afterwards. I'm not sure what consequences that might have, but
> > at least it contradicts the comment.
> >
> > (spotted this while working on a patch, and ran into the assertion on crash
> > recovery)
>
> What about the attached patches (one for 9.3 and master, the other for
> 9.2)? I've tested that I can trigger the assert before and not after by
> inserting faults...
Yould either of you commit those patches to the corresponding branches?
Greetings,
Andres Freund
-- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
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