Re: BUG #14223: stuck spinlock detected at bufmgr.c:1440

From: Andres Freund <andres(at)anarazel(dot)de>
To: scott(at)deltaex(dot)com
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #14223: stuck spinlock detected at bufmgr.c:1440
Date: 2016-07-01 21:38:07
Message-ID: 20160701213807.jzo6w4fdu56u6dut@alap3.anarazel.de
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Hi,

On 2016-07-01 20:22:34 +0000, scott(at)deltaex(dot)com wrote:
> The following bug has been logged on the website:
>
> Bug reference: 14223
> Logged by: Scott Milliken
> Email address: scott(at)deltaex(dot)com
> PostgreSQL version: 9.5.3
> Operating system: Linux 3.2.0-60-generic, Ubuntu 12.04.5 LTS

Given that the kernel is so old, two likely causes are transparent
hugepages, and zone_reclaim_mode. Both have to be disabled on older
kernels (the latter is disabled by default these days).

Greetings,

Andres Freund

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