[lttng-dev] [UST] SIGSEGV in lttng_ust_exit()

[Mathieu Desnoyers]

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 

----- Original Message -----

> From: "Mathieu Desnoyers" <mathieu.desnoyers at efficios.com>
> To: "Amit Margalit" <AMITM at il.ibm.com>
> Cc: "lttng-dev" <lttng-dev at lists.lttng.org>
> 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

> ----- Original Message -----

> > From: "Amit Margalit" <AMITM at il.ibm.com>
> 
> > To: "lttng-dev" <lttng-dev at lists.lttng.org>
> 
> > 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
> 
> > lttng-dev at lists.lttng.org
> 
> > http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
> 

> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com

> _______________________________________________
> lttng-dev mailing list
> lttng-dev at lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev

-- 
Mathieu Desnoyers 
EfficiOS Inc. 
http://www.efficios.com 
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