From mboxrd@z Thu Jan 1 00:00:00 1970 From: alexandre.montplaisir@polymtl.ca (Alexandre Montplaisir) Date: Thu, 15 Sep 2011 09:31:35 -0400 Subject: [ltt-dev] no metadata tracefile In-Reply-To: References: <4E6FB6FB.5080408@polymtl.ca> Message-ID: <4E71FE37.5040506@polymtl.ca> Hi again, On 11-09-14 02:05 PM, Ji Zhai wrote: > 7. I used LTTV(0.12.36) to review the results: > > lttv -m textDump -t mcb00-main-aaillax-20110914130558687771830 > > ** (process:20623): WARNING **: Trace /nas/jizhai/LTTng/mytrace/mcb00-main-aaillax-20110914130558687771830 has no metadata tracefile > > ** (process:20623): CRITICAL **: cannot open trace mcb00-main-aaillax-20110914130558687771830 > /home/jizhai/MyLocal/LTTng/bin/lttv: line 15: 20623 Segmentation fault $0.real $* This happens if you don't pass the right directory to "lttv -t". You have to give it the one containing the metadata_* and ust_* files directly. However from your tarball, your metadata_0 and ust_0 files are in different subdirectories. Is this what you obtained from a single invocation of usttrace? If so then it means your different channels end up in separate traces, and this is definitely not normal behavior. If you put both ust_0 and metadata_0 files in the same directory, and open that directory with LTTv, what do you get? I couldn't open it from here, but I think it has to do with different endianness. Cheers, -- Alexandre Montplaisir DORSAL lab, ?cole Polytechnique de Montr?al