Created
September 29, 2012 21:45
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Erlang, eprof and segmentation fault
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$ gdberl | |
GNU gdb (Ubuntu/Linaro 7.2-1ubuntu11) 7.2 | |
Copyright (C) 2010 Free Software Foundation, Inc. | |
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> | |
This is free software: you are free to change and redistribute it. | |
There is NO WARRANTY, to the extent permitted by law. Type "show copying" | |
and "show warranty" for details. | |
This GDB was configured as "x86_64-linux-gnu". | |
For bug reporting instructions, please see: | |
<http://www.gnu.org/software/gdb/bugs/>... | |
Reading symbols from /usr/local/lib/erlang/erts-5.9/bin/erlexec...done. | |
(gdb) run | |
Starting program: /usr/local/lib/erlang/erts-5.9/bin/erlexec | |
process 32464 is executing new program: /usr/local/lib/erlang/erts-5.9/bin/beam.smp | |
[Thread debugging using libthread_db enabled] | |
[New Thread 0x7ffff6acb700 (LWP 32506)] | |
[New Thread 0x7ffff628a700 (LWP 32507)] | |
[New Thread 0x7ffff5988700 (LWP 32508)] | |
[New Thread 0x7ffff5881700 (LWP 32509)] | |
[New Thread 0x7ffff5080700 (LWP 32510)] | |
[New Thread 0x7ffff487f700 (LWP 32511)] | |
[New Thread 0x7ffff407e700 (LWP 32512)] | |
[New Thread 0x7ffff387d700 (LWP 32513)] | |
[New Thread 0x7ffff307c700 (LWP 32514)] | |
[New Thread 0x7ffff287b700 (LWP 32515)] | |
[New Thread 0x7ffff207a700 (LWP 32516)] | |
[New Thread 0x7ffff1879700 (LWP 32517)] | |
Erlang R15B (erts-5.9) [source] [64-bit] [smp:8:8] [async-threads:0] [hipe] [kernel-poll:false] | |
Eshell V5.9 (abort with ^G) | |
1> | |
1> | |
1> eprof:start (). | |
{ok,<0.34.0>} | |
2> eprof:profile(fun () -> lists:seq (1,100) end). | |
Program received signal SIGSEGV, Segmentation fault. | |
[Switching to Thread 0x7ffff5881700 (LWP 32509)] | |
0x0000000000558aa2 in is_break (pc=<value optimized out>, | |
match_spec_ret=0x7ffff5880be0, tracer_pid_ret=0x0) at beam/beam_bp.c:1342 | |
1342 if ( (break_op == 0) || (bd->this_instr == break_op)) { | |
(gdb) bt | |
#0 0x0000000000558aa2 in is_break (pc=<value optimized out>, | |
match_spec_ret=0x7ffff5880be0, tracer_pid_ret=0x0) at beam/beam_bp.c:1342 | |
#1 erts_is_trace_break (pc=<value optimized out>, | |
match_spec_ret=0x7ffff5880be0, tracer_pid_ret=0x0) at beam/beam_bp.c:358 | |
#2 0x000000000046d2fa in function_is_traced (A__p=0xa302b8, | |
BIF__ARGS=<value optimized out>) at beam/erl_bif_trace.c:1031 | |
#3 trace_info_func (A__p=0xa302b8, BIF__ARGS=<value optimized out>) | |
at beam/erl_bif_trace.c:1084 | |
#4 trace_info_2 (A__p=0xa302b8, BIF__ARGS=<value optimized out>) | |
at beam/erl_bif_trace.c:849 | |
#5 0x000000000047b672 in erts_bif_trace (bif_index=236, p=0xa302b8, | |
args=<value optimized out>, I=0x7ffff013ba38) at beam/erl_trace.c:2112 | |
#6 0x0000000000544271 in process_main () at beam/beam_emu.c:2427 | |
#7 0x00000000004a42c1 in sched_thread_func (vesdp=0x7ffff6c6dc80) | |
at beam/erl_process.c:4475 | |
#8 0x00000000005c1130 in thr_wrapper (vtwd=0x7fffffffd100) | |
at pthread/ethread.c:106 | |
#9 0x00007ffff72f4d8c in start_thread (arg=0x7ffff5881700) | |
at pthread_create.c:304 | |
#10 0x00007ffff6e37c2d in clone () | |
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 | |
#11 0x0000000000000000 in ?? () | |
(gdb) q | |
A debugging session is active. | |
Inferior 1 [process 32464] will be killed. | |
Quit anyway? (y or n) y | |
$ |
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