Indeed, it seems that lttng-ust-fork is needed. Thanks!
Amit Margalit IBM XIV - Storage Reinvented XIV-NAS Development Team Tel. 03-689-7774 Fax. 03-689-7230 From: Mathieu Desnoyers <[email protected]> To: Amit Margalit/Israel/IBM@IBMIL Cc: lttng-dev <[email protected]> Date: 01/07/2014 05:44 PM Subject: Re: [lttng-dev] [UST] SIGSEGV in lttng_ust_exit() 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 ? Thanks, Mathieu From: "Mathieu Desnoyers" <[email protected]> To: "Amit Margalit" <[email protected]> Cc: "lttng-dev" <[email protected]> Sent: Monday, January 6, 2014 3:44:13 PM Subject: Re: [lttng-dev] [UST] SIGSEGV in lttng_ust_exit() Hi, 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). Thanks, Mathieu From: "Amit Margalit" <[email protected]> To: "lttng-dev" <[email protected]> Sent: Wednesday, December 25, 2013 7:58:05 AM Subject: [lttng-dev] [UST] SIGSEGV in lttng_ust_exit() Hi, 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. Here is most of the traceback - any help is appreciated. .424636] ===26292=== #2 crash_sig_handler (sig=11, info=0xb519f0, uc=<optimized out>) at common/crashandler/crashandler_client.c:139 .424671] ===26292=== #3 <signal handler called> .424730] ===26292=== #4 0x00007f4c2cb57831 in pthread_cancel () from /lib64/libpthread.so.0 .424788] ===26292=== #5 0x00007f4c2dec428e in lttng_ust_exit () at lttng-ust-comm.c:1296 .424846] ===26292=== #6 0x00007f4c2e310469 in _dl_fini () from /lib64/ld-linux-x86-64.so.2 .424904] ===26292=== #7 0x00007f4c2c4135e5 in __run_exit_handlers () from /lib64/libc.so.6 .424954] ===26292=== #8 0x00007f4c2c413635 in exit () from /lib64/libc.so.6 .425011] ===26292=== #9 0x00007f4c2c3fcbcd in __libc_start_main () from /lib64/libc.so.6 .425072] ===26292=== #10 0x000000000041cd49 in _start () at ../sysdeps/x86_64/elf/start.S:113 Amit Margalit IBM XIV - Storage Reinvented XIV-NAS Development Team Tel. 03-689-7774 Fax. 03-689-7230 _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com
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