From mboxrd@z Thu Jan 1 00:00:00 1970 From: srivatsanvijayaraghavan@yahoo.com (Srivatsan Vijayaraghavan) Date: Tue, 15 Feb 2011 12:06:02 -0800 (PST) Subject: [ltt-dev] No trace data inside the trace folders In-Reply-To: Message-ID: <135603.92097.qm@web113114.mail.gq1.yahoo.com> Message-ID: <20110215200602.RItpBJ0i3UtlLJoAat9pltFX6ZmnSQ5OId6fru5kt84@z> I am very sorry to have misled all of you. I used the ellipsis to mean some path name and my host name and date string are indeed fine. It's really the trace folder which is missing even when I specify it explicitly using the -o option, it stops after creating app.log and ust-consumerd.log, there is no trace folder inside my trace directory. pwd - /usr/local/bin usttrace -o /usr/local/bin/traceapp ./testust - Waiting for ust-consumerd to shutdown... - Trace was output in /usr/local/bin/traceapp Then i went to inspect the trace output only to find app.log and ust-consumerd.log inside /usr/local/bin/traceapp. ls /usr/local/bin/traceap showed me only app.log and ust-consumerd.log Thanks, Srivatsan V --- On Tue, 2/15/11, Mathieu Desnoyers wrote: From: Mathieu Desnoyers Subject: Re: [ltt-dev] No trace data inside the trace folders To: "Srivatsan Vijayaraghavan" Cc: ltt-dev at lists.casi.polymtl.ca Date: Tuesday, February 15, 2011, 7:06 PM * Srivatsan Vijayaraghavan (srivatsanvijayaraghavan at yahoo.com) wrote: > case 1 - usttrace ./testust > no -o option switch to specify trace directory and I get > /root/.usttracers/.../ust-consumerd.log - No such file or directory Ah, "..." is the problem. It's not a valid path name. The following usttrace code seems problemstic on your system: # Create directory for trace output if [ -n "$OUTPUT_DIR" ]; then ? ? ? ? OUTDIR=$OUTPUT_DIR else ? ? ? ? DATESTRING="$(hostname)-$(date +%Y%m%d%H%M%S%N)" ? ? ? ? OUTDIR="$BASE_TRACE_DIR/$DATESTRING" fi So your commands "hostname" and "date" are missing. Mathieu > > case 2 - usttrace -o ./trace ./testust > I specified the output directory for the trace and the two files app.log, ust-consumerd.log are now created in ./tracedir, but when I tried to inspect the folder for the actual trace, there was no tracing done or the folder where the trace data is kept was not there inside ./tracedir > > On the console- ?? > ?????? > Waiting for ust-consumerd to shutdown... > ?????? > Trace was output in:? ./tracedir > ???? sh-2.05b# cd tracedir > ??? -sh-2.05b# ls > ?????? > app.log??????????? ust-consumerd.log > > Thanks, > Srivatsan > --- On Tue, 2/15/11, Mathieu Desnoyers wrote: > > From: Mathieu Desnoyers > Subject: Re: [ltt-dev] No trace data inside the trace folders > To: "Srivatsan Vijayaraghavan" > Cc: ltt-dev at lists.casi.polymtl.ca > Date: Tuesday, February 15, 2011, 2:00 PM > > what is the "the same /root/.usttracers/..../ust-consumerd.log - No such > file or directory" exactly ? Which path is it unable to create ? Have > you tried creating it by hand ? > > Thanks, > > Mathieu > > * Srivatsan Vijayaraghavan (srivatsanvijayaraghavan at yahoo.com) wrote: > > -sh-2.05b# usttrace -o ./tracedir ./testUST > > ./tracedir > > Waiting for ust-consumerd to shutdown... > > Trace was output in:? ./tracedir > > -sh-2.05b# pwd > > /usr/local/bin > > -sh-2.05b# cd tracedir > > -sh-2.05b# ls > > app.log??????????? ust-consumerd.log > > > > If I dont give the trace directory, the it fails to create the ust-consumerd.log file. > > > > Thanks, > > Srivatsan > > --- On Tue, 2/15/11, Mathieu Desnoyers wrote: > > > > From: Mathieu Desnoyers > > Subject: Re: [ltt-dev] Trouble tracing my application for PowerPC board > > To: "Srivatsan Vijayaraghavan" > > Cc: > >? ltt-dev at lists.casi.polymtl.ca > > Date: Tuesday, February 15, 2011, 4:34 AM > > > > * Srivatsan Vijayaraghavan (srivatsanvijayaraghavan at yahoo.com) wrote: > > > I used ltib to cross compile and build liburcu and libust on my target board (for powerpc). Everything went smooth with few glitches which were sorted out, but when I tried to trace my application by invoking it from usttrace (usttrace ./testust), I wasn't able to get beyond this message > > > ??? /root/.usttracers/...../ust-consumerd.log - No such file or directory > > > > > > I tried recording the trace manually when ust-consumerd failed in epoll_create(). > > > So I built the kernel with CONFIG_EPOLL support, but that did not help. I still get the same /root/.usttracers/..../ust-consumerd.log - No such file or directory > > > > >? > > > ---testust.cpp--- > > > #include > > > int main(..) > > > { > > > ?? trace_mark(main,myevent,"%d", getpid()); > > > } > > > > which user ID are your running your application as ? > > > > What's the value of your $HOME ? > > > > It looks like ust is unable to create the directories/files needed to > > write the log file. It looks like an access right problem > > > > Mathieu > > > > > > > > Thanks, > > > Srivatsan V > > > > > > > > > > > > > > >? > > > ____________________________________________________________________________________ > > > Food fight? Enjoy some healthy debate > > > in the Yahoo! Answers Food & Drink Q&A. > > > http://answers.yahoo.com/dir/?link=list&sid=396545367 > > > _______________________________________________ > > > ltt-dev mailing list > > > ltt-dev at lists.casi.polymtl.ca > > > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev > > > > > > -- > > Mathieu Desnoyers > > Operating System Efficiency R&D Consultant > > EfficiOS Inc. > > http://www.efficios.com > > > > > > > >? > > ____________________________________________________________________________________ > > Expecting? Get great news right away with email Auto-Check. > > Try the Yahoo! Mail Beta. > > http://advision.webevents.yahoo.com/mailbeta/newmail_tools.html > > _______________________________________________ > > ltt-dev mailing list > > ltt-dev at lists.casi.polymtl.ca > > http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev > > > -- > Mathieu Desnoyers > Operating System Efficiency R&D Consultant > EfficiOS Inc. > http://www.efficios.com > > > >? > ____________________________________________________________________________________ > Get your own web address.? > Have a HUGE year through Yahoo! Small Business. > http://smallbusiness.yahoo.com/domains/?p=BESTDEAL -- Mathieu Desnoyers Operating System Efficiency R&D Consultant EfficiOS Inc. http://www.efficios.com ____________________________________________________________________________________ TV dinner still cooling? Check out "Tonight's Picks" on Yahoo! TV. http://tv.yahoo.com/ -------------- next part -------------- An HTML attachment was scrubbed... URL: