<html><body><div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"><div>Another thing: is your daemon using fork(), clone() or daemon() at any point ? If yes, did you LD_PRELOAD liblttng-ust-fork.so as stated in the lttng-ust(3) manpage in the environment starting your daemon ?<br></div><div><br></div><div>Thanks,<br></div><div><br></div><div>Mathieu<br></div><div><br></div><div><br></div><hr id="zwchr"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Mathieu Desnoyers" <mathieu.desnoyers@efficios.com><br><b>To: </b>"Amit Margalit" <AMITM@il.ibm.com><br><b>Cc: </b>"lttng-dev" <lttng-dev@lists.lttng.org><br><b>Sent: </b>Monday, January 6, 2014 3:44:13 PM<br><b>Subject: </b>Re: [lttng-dev] [UST] SIGSEGV in lttng_ust_exit()<br><div><br></div><div style="font-family: times new roman, new york, times, serif; font-size: 12pt; color: #000000"><div>Hi,</div><div><br></div><div>Can you try with updated lttng-ust (2.3.1 and stable-2.3 branch head) and update userspace RCU (0.8.1 and stable-0.8 head).<br></div><div><br></div><div>Thanks,<br></div><div><br></div><div>Mathieu<br></div><div><br></div><div><br></div><hr id="zwchr"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Amit Margalit" <AMITM@il.ibm.com><br><b>To: </b>"lttng-dev" <lttng-dev@lists.lttng.org><br><b>Sent: </b>Wednesday, December 25, 2013 7:58:05 AM<br><b>Subject: </b>[lttng-dev] [UST] SIGSEGV in lttng_ust_exit()<br><div><br></div><tt><span style="font-size: small;">Hi,</span></tt>
<br>
<br><tt><span style="font-size: small;">Using 2.3.0, we have a daemon process that's being
restarted. The process is being asked to terminate using a simple 'kill',
i.e. SIGTERM.</span></tt>
<br>
<br><tt><span style="font-size: small;">Here is most of the traceback - any help is appreciated.</span></tt>
<br>
<br><tt><span style="font-size: small;">.424636] ===26292=== #2 crash_sig_handler (sig=11,
info=0xb519f0, uc=<optimized out>) at common/crashandler/crashandler_client.c:139<br>
.424671] ===26292=== #3 <signal handler called><br>
.424730] ===26292=== #4 0x00007f4c2cb57831 in pthread_cancel () from /lib64/libpthread.so.0<br>
.424788] ===26292=== #5 0x00007f4c2dec428e in lttng_ust_exit () at lttng-ust-comm.c:1296<br>
.424846] ===26292=== #6 0x00007f4c2e310469 in _dl_fini () from /lib64/ld-linux-x86-64.so.2<br>
.424904] ===26292=== #7 0x00007f4c2c4135e5 in __run_exit_handlers () from
/lib64/libc.so.6<br>
.424954] ===26292=== #8 0x00007f4c2c413635 in exit () from /lib64/libc.so.6<br>
.425011] ===26292=== #9 0x00007f4c2c3fcbcd in __libc_start_main () from
/lib64/libc.so.6<br>
.425072] ===26292=== #10 0x000000000041cd49 in _start () at ../sysdeps/x86_64/elf/start.S:113</span></tt>
<br>
<br>
<br><span style="color: #000080; font-family: sans-serif; font-size: small;">Amit Margalit</span>
<br><span style="color: #808000; font-family: sans-serif; font-size: small;">IBM XIV </span><span style="font-family: sans-serif; font-size: small;">-
<i>Storage Reinvented</i></span>
<br><span style="font-family: sans-serif; font-size: small;">XIV-NAS Development Team</span>
<br><span style="font-family: sans-serif; font-size: small;">Tel. 03</span><span style="font-family: Arial; font-size: small;">-689-7774</span>
<br><span style="font-family: Arial; font-size: small;">Fax. 03-689-7230</span><br>_______________________________________________<br>lttng-dev mailing list<br>lttng-dev@lists.lttng.org<br>http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev<br></blockquote><div><br><div><br></div></div><div><br></div><div>-- <br></div><div><span></span>Mathieu Desnoyers<br>EfficiOS Inc.<br>http://www.efficios.com<span></span><br></div></div><br>_______________________________________________<br>lttng-dev mailing list<br>lttng-dev@lists.lttng.org<br>http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev<br></blockquote><div><br><br></div><div><br></div><div>-- <br></div><div><span name="x"></span>Mathieu Desnoyers<br>EfficiOS Inc.<br>http://www.efficios.com<span name="x"></span><br></div></div></body></html>