From mboxrd@z Thu Jan 1 00:00:00 1970 From: compudj@krystal.dyndns.org (Mathieu Desnoyers) Date: Mon, 14 Feb 2011 23:34:46 -0500 Subject: [ltt-dev] Trouble tracing my application for PowerPC board In-Reply-To: <841342.55407.qm@web113101.mail.gq1.yahoo.com> References: <841342.55407.qm@web113101.mail.gq1.yahoo.com> Message-ID: * 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