Horton

Re: Server crash due to SIGBUS(Bus Error) when trying to access the memory created using dsm_create().

Thomas Munro <thomas.munro@enterprisedb.com>

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From: Thomas Munro <thomas.munro@enterprisedb.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Robert Haas <robertmhaas@gmail.com>, Andres Freund <andres@anarazel.de>, amul sul <sul_amul@yahoo.co.in>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2017-09-25T20:57:07Z
Lists: pgsql-hackers 
> On Tue, Sep 26, 2017 at 9:13 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Pushed with that change; we'll soon see what the buildfarm thinks.

Hmm.  One failure in the test modules:

https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=rhinoceros&dt=2017-09-25%2020%3A45%3A02

2017-09-25 13:51:00.753 PDT [9107:6] LOG:  worker process: test_shm_mq
(PID 9362) exited with exit code 1
2017-09-25 13:51:00.753 PDT [9360:7] ERROR:  could not resize shared
memory segment "/PostgreSQL.1896677221" to 65824 bytes: Success

hostname = centos7x.joeconway.com
uname -r = 3.10.0-229.11.1.el7.x86_64

-- 
Thomas Munro
http://www.enterprisedb.com

Commits

  1. Fix failure-to-read-man-page in commit 899bd785c.

  2. Avoid SIGBUS on Linux when a DSM memory request overruns tmpfs.