<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Daniel,<br><br> There is a note on Metalink saying this error could be related to /proc/sys/fs/aio-max-nr. If you have not tuned this parameter, try increasing it to 1048576, or more if needed. You will have to look on /proc/sys/fs/aio-nr to see if you are hitting the current limit.<br><br>Regards.<br><br>--- On <b>Thu, 8/14/08, Daniel Keisling <i><daniel.keisling@austin.ppdi.com></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;">From: Daniel Keisling <daniel.keisling@austin.ppdi.com><br>Subject: RE: [Ocfs2-users] Linux-x86_64 Error: 4: Interrupted system call<br>To: lfreitas34@yahoo.com, ocfs2-users@oss.oracle.com<br>Date: Thursday, August 14, 2008, 5:50 PM<br><br><div id="yiv1876399536">
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<div dir="ltr" align="left"><span class="027484820-14082008"><font face="Arial"><font color="#0000ff"><font size="2">It is set to 8<span class="201195020-14082008">.</span></font></font></font></span></div></div><br>
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<font face="Tahoma" size="2"><b>From:</b> Luis Freitas [mailto:lfreitas34@yahoo.com]
<br><b>Sent:</b> Thursday, August 14, 2008 3:46 PM<br><b>To:</b>
ocfs2-users@oss.oracle.com; Daniel Keisling<br><b>Subject:</b> Re: [Ocfs2-users]
Linux-x86_64 Error: 4: Interrupted system call<br></font><br></div>
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<td valign="top">Daniel,<br><br> What do you have on
db_file_multiblock_read_count on the problem
database?<br><br>Regards,<br>Luis<br><br>--- On <b>Thu, 8/14/08, Daniel
Keisling <i><daniel.keisling@austin.ppdi.com></i></b> wrote:<br>
<blockquote style="border-left: 2px solid rgb(16, 16, 255); padding-left: 5px; margin-left: 5px;">From:
Daniel Keisling <daniel.keisling@austin.ppdi.com><br>Subject:
[Ocfs2-users] Linux-x86_64 Error: 4: Interrupted system call<br>To:
ocfs2-users@oss.oracle.com<br>Date: Thursday, August 14, 2008, 2:52
PM<br><br>
<div id="yiv1987747044">
<div><font face="Arial" size="2"><span class="461134117-14082008">Greetings,</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008"></span></font> </div>
<div><font face="Arial" size="2"><span class="461134117-14082008">When
attempting to start up a database on an OCFS2 filesystem, Oracle
complains with the following errors:</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008"></span></font> </div>
<div><font face="Arial" size="2"><span class="461134117-14082008"></span></font> </div>
<div><font face="Arial" size="2"><span class="461134117-14082008">ORA-27090:
Message 27090 not found; product=RDBMS;
facility=ORA</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008">Linux-x86_64
Error: 4: Interrupted system call</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008">Additional
information: 3</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008">Additional
information: 128</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008">Additional
information: 65536</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008">***
2008-08-12 14:02:01.304</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008">Warning: OS
async I/O limit 128 is lower than recovery batch
1024</span></font></div>
<div><font face="Arial" size="2"></font> </div>
<div><font face="Arial" size="2"></font> </div>
<div><span class="461134117-14082008"><font face="Arial" size="2">Searching
for 'interrupted system call" seems to suggest that filesystem is not
mounted with the nointr option, but it is:</font></span></div>
<div><span class="461134117-14082008"><font face="Arial" size="2"></font></span> </div>
<div><span class="461134117-14082008"><font face="Arial" size="2">/dev/sdg1 on
/var/opt/oracle/oradata/ph1p type ocfs2
(rw,_netdev,datavolume,nointr,heartbeat=local)</font></span></div>
<div><font face="Arial" size="2"></font> </div>
<div><span class="461134117-14082008"><font face="Arial" size="2"></font></span> </div>
<div><span class="461134117-14082008"><font face="Arial" size="2">I have no
idea about the async I/O limit. I know that this kernel paramater
is no longer tunable in 2.6 kernels.</font></span></div>
<div><font face="Arial" size="2"><span class="461134117-14082008"></span></font><font face="Arial" size="2"><span class="461134117-14082008"></span></font> </div>
<div><font face="Arial" size="2"><span class="461134117-14082008">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?</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008"></span></font> </div>
<div><font face="Arial" size="2"><span class="461134117-14082008">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</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008">Under Red
Hat v5.1 with ocfs2-2.6.18-53.el5-1.2.8-2.el5.</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008"></span></font> </div>
<div><font face="Arial" size="2"><span class="461134117-14082008">TIA,</span></font></div>
<div><font face="Arial" size="2"><span class="461134117-14082008"></span></font> </div>
<div><font face="Arial" size="2"><span class="461134117-14082008">Daniel</span></font></div>
<div> </div>
<div><font face="Arial" size="2"><span class="461134117-14082008"></span></font> </div><br><br>
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