From: bhavani krishnan <bhavi63@yahoo.com>
To: xen-devel@lists.xensource.com
Subject: xenoprof samples lost due to no mapping
Date: Sun, 8 Nov 2009 17:14:05 -0800 (PST) [thread overview]
Message-ID: <885379.62280.qm@web53009.mail.re2.yahoo.com> (raw)
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Hi,
I am trying to do passive profiling of domains in xen. kernel is 2.6.18-128.1.1.el5xen.I am not getting the domain samples. Below is the oprofiled.log. Samples are being lost due to no mapping and no mm. Can anyone suggest what could be the problem?When I start the daemon i get the following error but the daemon starts.opcontrol --start-daemon --passive-domains=1,2,3,4,5 /usr/bin/opcontrol: line 1275: echo: write error: Invalid argument/usr/bin/opcontrol: line 1118: echo: write error: Invalid argumentUsing 2.6+ OProfile kernel interface.Reading module info.Using log file /var/lib/oprofile/samples/oprofiled.logDaemon started.
This is the oprofiled.log fileNr. sample dumps: 1Nr. non-backtrace samples: 0Nr. kernel samples: 0Nr. lost samples (no kernel/user): 0Nr. lost kernel samples: 0Nr. incomplete code structs: 0Nr. samples lost due to sample file open failure: 0Nr. samples lost due to no permanent mapping: 0Nr. event lost due to buffer overflow: 0Nr. samples lost due to no mapping: 719552Nr. backtraces skipped due to no file mapping: 0Nr. samples lost due to no mm: 2467472Nr. samples lost cpu buffer overflow: 0Nr. samples received: 0Nr. backtrace aborted: 0Nr. samples lost cpu buffer overflow: 0Nr. samples received: 0Nr. backtrace aborted: 0Nr. samples lost cpu buffer overflow: 0Nr. samples received: 0Nr. backtrace aborted: 0Nr. samples lost cpu buffer overflow: 0Nr. samples received: 0Nr. backtrace aborted: 0Nr. samples lost cpu buffer overflow: 0Nr. samples received: 0Nr. backtrace aborted: 0Nr. samples lost cpu buffer overflow: 0Nr. samples received: 0Nr. backtrace
aborted: 0Nr. samples lost cpu buffer overflow: 0Nr. samples received: 0Nr. backtrace aborted: 0Nr. samples lost cpu buffer overflow: 0Nr. samples received: 0Nr. backtrace aborted: 0
Thanks,Bhavani
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