[Ocfs2-users] Linux-x86_64 Error: 4: Interrupted system call

[Daniel Keisling]

It is set to 8.

________________________________

From: Luis Freitas [mailto:lfreitas34 at yahoo.com] 
Sent: Thursday, August 14, 2008 3:46 PM
To: ocfs2-users at oss.oracle.com; Daniel Keisling
Subject: Re: [Ocfs2-users] Linux-x86_64 Error: 4: Interrupted system
call


Daniel,

    What do you have on db_file_multiblock_read_count on the problem
database?

Regards,
Luis

--- On Thu, 8/14/08, Daniel Keisling <daniel.keisling at austin.ppdi.com>
wrote:


	From: Daniel Keisling <daniel.keisling at austin.ppdi.com>
	Subject: [Ocfs2-users] Linux-x86_64 Error: 4: Interrupted system
call
	To: ocfs2-users at oss.oracle.com
	Date: Thursday, August 14, 2008, 2:52 PM
	
	
	Greetings,
	 
	When attempting to start up a database on an OCFS2 filesystem,
Oracle complains with the following errors:
	 
	 
	ORA-27090: Message 27090 not found;  product=RDBMS; facility=ORA
	Linux-x86_64 Error: 4: Interrupted system call
	Additional information: 3
	Additional information: 128
	Additional information: 65536
	*** 2008-08-12 14:02:01.304
	Warning: OS async I/O limit 128 is lower than recovery batch
1024
	 
	 
	Searching for 'interrupted system call" seems to suggest that
filesystem is not mounted with the nointr option, but it is:
	 
	/dev/sdg1 on /var/opt/oracle/oradata/ph1p type ocfs2
(rw,_netdev,datavolume,nointr,heartbeat=local)
	 
	 
	I have no idea about the async I/O limit.  I know that this
kernel paramater is no longer tunable in 2.6 kernels.
	 
	I have a dozen or so databases on another filesystems and on
other machines, none of which exhibit this behavior.  Does anyone know
why it complains of an 'interrupted system call' and I/O limits for this
filesystem and/or if they pose a problem?
	 
	Kernel is 2.6.18-53.el5 #1 SMP Wed Oct 10 16:34:19 EDT 2007
x86_64 x86_64 x86_64 GNU/Linux
	Under Red Hat v5.1 with ocfs2-2.6.18-53.el5-1.2.8-2.el5.
	 
	TIA,
	 
	Daniel
	 
	 




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