From mboxrd@z Thu Jan 1 00:00:00 1970 From: mathieu.desnoyers@efficios.com (Mathieu Desnoyers) Date: Tue, 16 Apr 2019 13:40:29 -0400 (EDT) Subject: [lttng-dev] SIG33 message In-Reply-To: References: Message-ID: <194380388.2153.1555436429530.JavaMail.zimbra@efficios.com> ----- On Apr 4, 2019, at 3:26 PM, Mosleh Uddin wrote: > Hello, > I am building an application which I am compiling with the 'lttng-ust' flag. > When I try to debug the application using gdb, I get a 'Suspended: Signal: > SIG33:Real-time event 33' message. This only happens when I compile with the > 'lttng-ust' flag, if I remove it I no longer have this issue. Any insight? Hi, Based on the signal(7) man page, it appears that real-time signal 33 is used by the NPTL threading library from glibc. Indeed, lttng-ust creates 2 threads within the processes it's linked into, so your application needs to appropriately interact with glibc NPTL in order to link lttng-ust into it. Can you provide more details on the nature of your application ? What version of gdb do you use ? On which architecture ? Thanks, Mathieu -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com -------------- next part -------------- An HTML attachment was scrubbed... URL: