linux-kernel - Re: PROBLEM: Postgres fails to start due to kernel issue?

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Message-ID: <4F193C8D.3010506@oak.selfip.net>
Date:	Fri, 20 Jan 2012 10:06:05 +0000
From:	Dave Haywood <tla@....selfip.net>
To:	"hpanvin@...il.com" <hpa@...or.com>
CC:	Josh Boyer <jwboyer@...il.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: PROBLEM: Postgres fails to start due to kernel issue?

On 20/01/2012 03:13, hpanvin@...il.com wrote:
> Yes, it almost certainly is.  Fixed in rc1.

Correct, working again under 3.3.0-rc1.  Thanks!

Linux s1 3.3.0-rc1 #135 SMP Fri Jan 20 09:59:56 GMT 2012 i686 
Pentium III (Coppermine) GenuineIntel GNU/Linux

>
> Josh Boyer<jwboyer@...il.com>  wrote:
>
>> On Thu, Jan 19, 2012 at 7:45 PM, Dave Haywood<tla@....selfip.net>
>> wrote:
>>> Hi,
>>>
>>>   I noticed after upgrading to 3.2.0-08812-gc2bc3a3 that Postgres-9.1
>> server
>>> fails to start with error:
>>>
>>> FATAL:  could not create shared memory segment: Function not
>> implemented
>>> DETAIL:  Failed system call was shmget(key=5432001, size=30523392,
>> 03600).
>>>   After some googling, I thought it was a SYSV shared memory sizing
>> issue but
>>> manually changing kernel.shmmax and kernel.shmall had no effect.
>>>
>>>   The problem has been introduced between 3.2.0-08694-g53999bf and
>>> 3.2.0-08812-gc2bc3a3.
>>>
>>>   Let me know if you need any more information.  Bisecting is *very*
>> slow on
>>> this machine!
>> If you run strace on it, does it fail with ENOSYS?  This might be
>> related to an issue Peter just fixed.
>>
>> josh

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