| From: | Peter Geoghegan <pg(at)heroku(dot)com> |
|---|---|
| To: | Merlin Moncure <mmoncure(at)gmail(dot)com> |
| Cc: | Andres Freund <andres(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: hung backends stuck in spinlock heavy endless loop |
| Date: | 2015-01-13 23:54:58 |
| Message-ID: | CAM3SWZQmxhmBwqEP20gvCini6WL_hmR8vp9do555ZEUo4f9_HA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Jan 13, 2015 at 3:50 PM, Merlin Moncure <mmoncure(at)gmail(dot)com> wrote:
>> I don't remember seeing _bt_moveright() or _bt_compare() figuring so
>> prominently, where _bt_binsrch() is nowhere to be seen. I can't see a
>> reference to _bt_binsrch() in either profile.
>
> hm, this is hand compiled now, I bet the symbols are wrong.
In case it isn't clear, I think that the proximate cause here may well
be either one (or both) of commits
efada2b8e920adfdf7418862e939925d2acd1b89 and/or
40dae7ec537c5619fc93ad602c62f37be786d161. Probably the latter. I think
that the profile is roughly consistent with that, although I may well
be wrong.
--
Peter Geoghegan
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