Attachment 849640 Details for Bug 1052705 – File: backtrace

File: backtrace

backtrace (text/plain), 10.28 KB, created by Lorenzo Pistone on 2014-01-13 22:01:47 UTC

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Creator: Lorenzo Pistone

Created: 2014-01-13 22:01:47 UTC

Size: 10.28 KB

patch

obsolete

>[New LWP 1042]
>[Thread debugging using libthread_db enabled]
>Using host libthread_db library "/lib64/libthread_db.so.1".
>Core was generated by `gdb --interpreter mi2 --nx'.
>Program terminated with signal SIGSEGV, Segmentation fault.
>#0  visit_decref (op=<unknown at remote 0x7fc5c2d77468>, data=0x0) at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c:429
>429	    if (PyObject_IS_GC(op)) {
>
>Thread 1 (Thread 0x7fc2c2dc0840 (LWP 1042)):
>#0  visit_decref (op=<unknown at remote 0x7fc5c2d77468>, data=0x0) at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c:429
>No locals.
>#1  0x00007fc2c14817bb in list_traverse (o=0x7fc2c2d908c0, visit=0x7fc2c151e300 <visit_decref>, arg=0x0) at /usr/src/debug/Python-2.7.5/Objects/listobject.c:2371
>        vret = <optimized out>
>        i = 4
>#2  0x00007fc2c151e6c7 in subtract_refs (containers=<optimized out>) at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c:456
>        traverse = <optimized out>
>        gc = 0x7fc2c2d908a0
>#3  collect (generation=generation@entry=2) at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c:999
>        i = <optimized out>
>        m = 0
>        n = 0
>        young = <optimized out>
>        old = 0x7fc2c17ba2c0 <generations+96>
>        unreachable = {gc = {gc_next = 0x0, gc_prev = 0x7ce900 <sentinel_cleanup>, gc_refs = 22253600}, dummy = <invalid float value>}
>        finalizers = {gc = {gc_next = 0xc112f8 <_PyThreadState_Current>, gc_prev = 0x7fc2c2bdf756 <_dl_fixup+230>, gc_refs = 140471200382977}, dummy = <invalid float value>}
>        gc = <optimized out>
>        t1 = 0
>#4  0x00007fc2c151f188 in PyGC_Collect () at /usr/src/debug/Python-2.7.5/Modules/gcmodule.c:1514
>        n = 28345120
>#5  0x00007fc2c150c439 in Py_Finalize () at /usr/src/debug/Python-2.7.5/Python/pythonrun.c:444
>        interp = 0x15e3820
>#6  0x00000000005555b6 in do_my_cleanups (pmy_chain=pmy_chain@entry=0xbed938 <final_cleanup_chain>, old_chain=0x7ce900 <sentinel_cleanup>) at ../../gdb/cleanups.c:155
>        ptr = 0x16b3870
>#7  0x000000000055574d in do_final_cleanups (old_chain=<optimized out>) at ../../gdb/cleanups.c:186
>No locals.
>#8  0x000000000067314f in quit_force (args=0x0, from_tty=0) at ../../gdb/top.c:1447
>        exit_code = 0
>        qt = {args = 0x0, from_tty = 0}
>        ex = {reason = 0, error = GDB_NO_ERROR, message = 0x0}
>#9  0x00000000004eeb4b in mi_cmd_execute (parse=0x1a0ff30) at ../../gdb/mi/mi-main.c:2147
>        cleanup = 0x1539020
>#10 captured_mi_execute_command (context=0x1a0ff30, uiout=0x15f2a30) at ../../gdb/mi/mi-main.c:1898
>        cleanup = 0x7ce900 <sentinel_cleanup>
>#11 mi_execute_command (cmd=0x1a42e80 "22-gdb-exit", from_tty=<optimized out>) at ../../gdb/mi/mi-main.c:2017
>        result = {reason = 0, error = GDB_NO_ERROR, message = 0x0}
>        previous_ptid = {pid = 0, lwp = 0, tid = 0}
>        token = 0x16f82c0 "22"
>        command = 0x1a0ff30
>        exception = {reason = 0, error = GDB_NO_ERROR, message = 0x0}
>#12 0x00000000004e9e7d in mi_execute_command_wrapper (cmd=<optimized out>) at ../../gdb/mi/mi-interp.c:311
>No locals.
>#13 mi_execute_command_input_handler (cmd=<optimized out>) at ../../gdb/mi/mi-interp.c:319
>No locals.
>#14 0x00000000005b9114 in process_event () at ../../gdb/event-loop.c:342
>        event_ptr = <optimized out>
>        proc = 0x5b8550 <handle_file_event>
>        data = {ptr = 0x0, integer = 0}
>#15 0x00000000005b94a7 in gdb_do_one_event () at ../../gdb/event-loop.c:406
>        event_source_head = 0
>        current = 3
>#16 0x00000000005b96d7 in start_event_loop () at ../../gdb/event-loop.c:431
>        ex = {reason = 0, error = GDB_NO_ERROR, message = 0x0}
>        result = 0
>#17 0x00000000005b2563 in captured_command_loop (data=data@entry=0x0) at ../../gdb/main.c:261
>No locals.
>#18 0x00000000005b066a in catch_errors (func=func@entry=0x5b2550 <captured_command_loop>, func_args=func_args@entry=0x0, errstring=errstring@entry=0x78f2d3 "", mask=mask@entry=6) at ../../gdb/exceptions.c:524
>        val = 0
>        exception = {reason = 0, error = GDB_NO_ERROR, message = 0x0}
>        saved_uiout = 0x15f2a30
>#19 0x00000000005b323e in captured_main (data=data@entry=0x7fffa0c70070) at ../../gdb/main.c:1150
>        context = 0x7fffa0c70070
>        argc = 4
>        argv = 0x7fffa0c70188
>        quiet = 0
>        set_args = 0
>        inhibit_home_gdbinit = 0
>        symarg = <optimized out>
>        execarg = <optimized out>
>        pidarg = 0x0
>        corearg = <optimized out>
>        pid_or_core_arg = <optimized out>
>        cdarg = 0x0
>        ttyarg = 0x0
>        python_script = <optimized out>
>        print_help = 0
>        print_version = 0
>        print_configuration = 0
>        cmdarg_vec = 0x0
>        cmdarg_p = 0x0
>        dirarg = <optimized out>
>        dirsize = <optimized out>
>        ndir = 1
>        system_gdbinit = 0x1620dc0 "/etc/gdbinit"
>        home_gdbinit = 0x0
>        local_gdbinit = 0x0
>        i = <optimized out>
>        save_auto_load = 1
>        objfile = <optimized out>
>        pre_stat_chain = 0x7ce900 <sentinel_cleanup>
>#20 0x00000000005b066a in catch_errors (func=func@entry=0x5b2980 <captured_main>, func_args=func_args@entry=0x7fffa0c70070, errstring=errstring@entry=0x78f2d3 "", mask=mask@entry=6) at ../../gdb/exceptions.c:524
>        val = 0
>        exception = {reason = 0, error = GDB_NO_ERROR, message = 0x0}
>        saved_uiout = 0xbf1020 <def_uiout>
>#21 0x00000000005b3e04 in gdb_main (args=args@entry=0x7fffa0c70070) at ../../gdb/main.c:1160
>No locals.
>#22 0x0000000000457cbe in main (argc=<optimized out>, argv=<optimized out>) at ../../gdb/gdb.c:34
>        args = {argc = 4, argv = 0x7fffa0c70188, use_windows = 0, interpreter_p = 0x77ed30 "console"}
>From                To                  Syms Read   Shared Object Library
>0x00007fc2c299ff50  0x00007fc2c29be768  Yes         /lib64/libreadline.so.6
>0x00007fc2c276d4a0  0x00007fc2c277ffe4  Yes         /lib64/libselinux.so.1
>0x00007fc2c2546d50  0x00007fc2c2560454  Yes         /lib64/libncurses.so.5
>0x00007fc2c2322e40  0x00007fc2c232eba8  Yes         /lib64/libtinfo.so.5
>0x00007fc2c2102210  0x00007fc2c210e930  Yes         /lib64/libz.so.1
>0x00007fc2c1dfe890  0x00007fc2c1e6dbb8  Yes         /lib64/libm.so.6
>0x00007fc2c1bf5ed0  0x00007fc2c1bf69d0  Yes         /lib64/libdl.so.2
>0x00007fc2c19dd9f0  0x00007fc2c19e9614  Yes         /lib64/libpthread.so.0
>0x00007fc2c17d5f10  0x00007fc2c17d6804  Yes         /lib64/libutil.so.1
>0x00007fc2c144e3d0  0x00007fc2c1534e50  Yes         /lib64/libpython2.7.so.1.0
>0x00007fc2c11e8e00  0x00007fc2c1201cdc  Yes         /lib64/libexpat.so.1
>0x00007fc2c0fc30e0  0x00007fc2c0fd9060  Yes         /lib64/liblzma.so.5
>0x00007fc2c0dacaf0  0x00007fc2c0dbc218  Yes         /lib64/libgcc_s.so.1
>0x00007fc2c0a0a560  0x00007fc2c0b4bcc4  Yes         /lib64/libc.so.6
>0x00007fc2c0786770  0x00007fc2c07d08d8  Yes         /lib64/libpcre.so.1
>0x00007fc2c2bd1b10  0x00007fc2c2beacb0  Yes         /lib64/ld-linux-x86-64.so.2
>0x00007fc2ba04ff80  0x00007fc2ba054c94  Yes         /usr/lib64/python2.7/lib-dynload/itertoolsmodule.so
>0x00007fc2b9e47520  0x00007fc2b9e49bfc  Yes         /usr/lib64/python2.7/lib-dynload/_collectionsmodule.so
>0x00007fc2b9c3e0e0  0x00007fc2b9c40254  Yes         /usr/lib64/python2.7/lib-dynload/operator.so
>0x00007fc2b9a35e50  0x00007fc2b9a36fc4  Yes         /usr/lib64/python2.7/lib-dynload/_heapq.so
>0x00007fc2b9832680  0x00007fc2b98337e8  Yes         /usr/lib64/gconv/UTF-32.so
>0x00007fc2b8df51e0  0x00007fc2b8dfc4a4  Yes         /lib64/libnss_files.so.2
>$1 = 0x0
>No symbol "__glib_assert_msg" in current context.
>rax            0x1b08320	28345120
>rbx            0x4	4
>rcx            0x0	0
>rdx            0x0	0
>rsi            0x0	0
>rdi            0x7fc5c2d77468	140487354184808
>rbp            0x20	0x20
>rsp            0x7fffa0c6fb58	0x7fffa0c6fb58
>r8             0x21	33
>r9             0x16316f0	23271152
>r10            0x7fffa0c6fa30	140735890782768
>r11            0x7fc2c151f160	140474443755872
>r12            0x0	0
>r13            0x7fc2c151e300	140474443752192
>r14            0x7fc2c2d908c0	140474469386432
>r15            0x1a0ff30	27328304
>rip            0x7fc2c151e300	0x7fc2c151e300 <visit_decref>
>eflags         0x10202	[ IF RF ]
>cs             0x33	51
>ss             0x2b	43
>ds             0x0	0
>es             0x0	0
>fs             0x0	0
>gs             0x0	0
>st0            *value not available*
>st1            *value not available*
>st2            *value not available*
>st3            *value not available*
>st4            *value not available*
>st5            *value not available*
>st6            *value not available*
>st7            *value not available*
>fctrl          *value not available*
>fstat          *value not available*
>ftag           *value not available*
>fiseg          *value not available*
>fioff          *value not available*
>foseg          *value not available*
>fooff          *value not available*
>fop            *value not available*
>xmm0           *value not available*
>xmm1           *value not available*
>xmm2           *value not available*
>xmm3           *value not available*
>xmm4           *value not available*
>xmm5           *value not available*
>xmm6           *value not available*
>xmm7           *value not available*
>xmm8           *value not available*
>xmm9           *value not available*
>xmm10          *value not available*
>xmm11          *value not available*
>xmm12          *value not available*
>xmm13          *value not available*
>xmm14          *value not available*
>xmm15          *value not available*
>mxcsr          *value not available*
>Dump of assembler code for function visit_decref:
>=> 0x00007fc2c151e300 <+0>:	mov    0x8(%rdi),%rax
>   0x00007fc2c151e304 <+4>:	push   %rbx
>   0x00007fc2c151e305 <+5>:	mov    %rdi,%rbx
>   0x00007fc2c151e308 <+8>:	testb  $0x40,0xa9(%rax)
>   0x00007fc2c151e30f <+15>:	je     0x7fc2c151e334 <visit_decref+52>
>   0x00007fc2c151e311 <+17>:	mov    0x148(%rax),%rax
>   0x00007fc2c151e318 <+24>:	test   %rax,%rax
>   0x00007fc2c151e31b <+27>:	je     0x7fc2c151e323 <visit_decref+35>
>   0x00007fc2c151e31d <+29>:	callq  *%rax
>   0x00007fc2c151e31f <+31>:	test   %eax,%eax
>   0x00007fc2c151e321 <+33>:	je     0x7fc2c151e334 <visit_decref+52>
>   0x00007fc2c151e323 <+35>:	mov    -0x10(%rbx),%rax
>   0x00007fc2c151e327 <+39>:	test   %rax,%rax
>   0x00007fc2c151e32a <+42>:	jle    0x7fc2c151e334 <visit_decref+52>
>   0x00007fc2c151e32c <+44>:	sub    $0x1,%rax
>   0x00007fc2c151e330 <+48>:	mov    %rax,-0x10(%rbx)
>   0x00007fc2c151e334 <+52>:	xor    %eax,%eax
>   0x00007fc2c151e336 <+54>:	pop    %rbx
>   0x00007fc2c151e337 <+55>:	retq   
>End of assembler dump.

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Attachments on bug 1052705: 849640 | 849641 | 849642 | 849643 | 849644 | 849645 | 849646 | 849647 | 849648 | 849649 | 849650